Servers Playground How we check Add a server Log in

TPC Hosting Free Tools

Working · 81 ms Security A

com.tpc-hosting/free-toolsv1.0.2 Domain verified

TPC Hosting network checks for AI: traceroute, DNS trace, HTTP/3, TTFB, SSL, SMTP, DNS, email. Free.

Cloud & DevOps Security

Watch Website

Registry entry

Open in the registry

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-11-11T17:08:31.73558Z",
      "publishedAt": "2026-11-11T17:08:31.73558Z",
      "statusChangedAt": "2026-11-11T17:08:31.73558Z"
    }
  },
  "server": {
    "name": "com.tpc-hosting/free-tools",
    "icons": [
      {
        "src": "https://tpc-hosting.com/templates/lagom2/assets/img/favicons/favicon-192.png",
        "sizes": [
          "192x192"
        ],
        "mimeType": "image/png"
      }
    ],
    "title": "TPC Hosting Free Tools",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "remotes": [
      {
        "url": "https://mcp-tools.tpc-hosting.com/mcp",
        "type": "streamable-http"
      }
    ],
    "version": "1.0.2",
    "websiteUrl": "https://tpc-hosting.com/tools/mcp/",
    "description": "TPC Hosting network checks for AI: traceroute, DNS trace, HTTP/3, TTFB, SSL, SMTP, DNS, email. Free."
  }
}

Maintain this server? Claim it

Try it

Call this server's tools from your browser. Nothing to install.

https://mcp-tools.tpc-hosting.com/mcp

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

asn_lookup Read-only

Looks up an AS number (like AS13335) in Team Cymru and RDAP: the network's name, organisation, country, registry and registration dates. An IP address is mapped to the AS that announces it first.

querystring, required

An AS number such as AS13335 or 13335, or a public IP address.

TPC Hosting Free Tools MCP server | mcptry

TPC Hosting Free Tools

Working · 81 ms Security A

com.tpc-hosting/free-toolsv1.0.2 Domain verified

TPC Hosting network checks for AI: traceroute, DNS trace, HTTP/3, TTFB, SSL, SMTP, DNS, email. Free.

Cloud & DevOps Security

Watch Watch Website

Registry entry

Open in the registry

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-11-11T17:08:31.73558Z",
      "publishedAt": "2026-11-11T17:08:31.73558Z",
      "statusChangedAt": "2026-11-11T17:08:31.73558Z"
    }
  },
  "server": {
    "name": "com.tpc-hosting/free-tools",
    "icons": [
      {
        "src": "https://tpc-hosting.com/templates/lagom2/assets/img/favicons/favicon-192.png",
        "sizes": [
          "192x192"
        ],
        "mimeType": "image/png"
      }
    ],
    "title": "TPC Hosting Free Tools",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "remotes": [
      {
        "url": "https://mcp-tools.tpc-hosting.com/mcp",
        "type": "streamable-http"
      }
    ],
    "version": "1.0.2",
    "websiteUrl": "https://tpc-hosting.com/tools/mcp/",
    "description": "TPC Hosting network checks for AI: traceroute, DNS trace, HTTP/3, TTFB, SSL, SMTP, DNS, email. Free."
  }
}

Maintain this server? Claim it

Try it

Call this server's tools from your browser. Nothing to install.

https://mcp-tools.tpc-hosting.com/mcp

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

asn_lookup Read-only

Looks up an AS number (like AS13335) in Team Cymru and RDAP: the network's name, organisation, country, registry and registration dates. An IP address is mapped to the AS that announces it first.

querystring, required

An AS number such as AS13335 or 13335, or a public IP address.

Tools (44)

Tool list last changed Nov 11, 2026.

asn_lookup

Looks up an AS number (like AS13335) in Team Cymru and RDAP: the network's name, organisation, country, registry and registration dates. An IP address is mapped to the AS that announces it first.

read-only

Argument	Type	Description
query*	string	An AS number such as AS13335 or 13335, or a public IP address.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "query"
  ],
  "properties": {
    "query": {
      "type": "string",
      "maxLength": 64,
      "description": "An AS number such as AS13335 or 13335, or a public IP address."
    }
  }
}

bandwidth_calculator

Two calculations: monthly data transfer and average speed for a website (visitors, pages per visit, page size), or how long a file takes to move at a given connection speed. Decimal units unless MiB, GiB or TiB are given.

read-only

Argument	Type	Description
mode*	string	website: monthly bandwidth of a site. transfer: time to download or upload a file.
speed	number	transfer: connection speed, in speed_unit.
file_size	number	transfer: file size, in file_size_unit.
page_size	number	website: average page size, in page_size_unit.
redundancy	number	website: safety factor for spikes and bots, 1 or more. Defaults to 1.5.
speed_unit	string	transfer: unit of speed. Defaults to Mbps.
file_size_unit	string	transfer: unit of file_size. Defaults to GB.
page_size_unit	string	website: unit of page_size. Defaults to MB.
pages_per_visit	number	website: pages viewed per visit.
visitors_per_month	number	website: visitors per month.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "mode"
  ],
  "properties": {
    "mode": {
      "enum": [
        "website",
        "transfer"
      ],
      "type": "string",
      "description": "website: monthly bandwidth of a site. transfer: time to download or upload a file."
    },
    "speed": {
      "type": "number",
      "maximum": 1000000000000000,
      "minimum": 0,
      "description": "transfer: connection speed, in speed_unit."
    },
    "file_size": {
      "type": "number",
      "maximum": 1000000000000000,
      "minimum": 0,
      "description": "transfer: file size, in file_size_unit."
    },
    "page_size": {
      "type": "number",
      "maximum": 1000000000000000,
      "minimum": 0,
      "description": "website: average page size, in page_size_unit."
    },
    "redundancy": {
      "type": "number",
      "maximum": 1000000000000000,
      "minimum": 0,
      "description": "website: safety factor for spikes and bots, 1 or more. Defaults to 1.5."
    },
    "speed_unit": {
      "enum": [
        "Kbps",
        "Mbps",
        "Gbps"
      ],
      "type": "string",
      "description": "transfer: unit of speed. Defaults to Mbps."
    },
    "file_size_unit": {
      "enum": [
        "MB",
        "GB",
        "TB",
        "MiB",
        "GiB",
        "TiB"
      ],
      "type": "string",
      "description": "transfer: unit of file_size. Defaults to GB."
    },
    "page_size_unit": {
      "enum": [
        "KB",
        "MB",
        "KiB",
        "MiB"
      ],
      "type": "string",
      "description": "website: unit of page_size. Defaults to MB."
    },
    "pages_per_visit": {
      "type": "number",
      "maximum": 1000000000000000,
      "minimum": 0,
      "description": "website: pages viewed per visit."
    },
    "visitors_per_month": {
      "type": "number",
      "maximum": 1000000000000000,
      "minimum": 0,
      "description": "website: visitors per month."
    }
  }
}

bimi_check

Checks a domain's BIMI record and logo (SVG) for brand indicators in email clients.

read-only

Argument	Type	Description
domain*	string	A domain name such as example.com. A full URL or an email address is reduced to its domain.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "maxLength": 300,
      "description": "A domain name such as example.com. A full URL or an email address is reduced to its domain."
    }
  }
}

chmod_calculator

Converts Unix file permissions between octal (755, 4755) and symbolic (rwxr-xr-x) form, shows the chmod command, explains who can read, write and run, and flags risky modes such as 777.

read-only

Argument	Type	Description
mode*	string	Octal mode such as 644 or 4755, or symbolic mode such as rwxr-xr-x (a leading file-type character, as in -rwxr-xr-x, is accepted).
path	string	A file name to put in the chmod command. Defaults to filename.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "mode"
  ],
  "properties": {
    "mode": {
      "type": "string",
      "maxLength": 12,
      "description": "Octal mode such as 644 or 4755, or symbolic mode such as rwxr-xr-x (a leading file-type character, as in -rwxr-xr-x, is accepted)."
    },
    "path": {
      "type": "string",
      "pattern": "^[A-Za-z0-9_./@+-]+$",
      "maxLength": 200,
      "description": "A file name to put in the chmod command. Defaults to filename."
    }
  }
}

cron_expression

Reads a classic 5-field cron expression (or @daily, @hourly, @reboot) and returns a plain-English description, the expanded form and the next run times in UTC.

read-only

Argument	Type	Description
from	string	ISO 8601 date and time to count from. Defaults to now.
count	integer	How many upcoming runs to list. Defaults to 5.
expression*	string	Five fields: minute hour day-of-month month day-of-week, such as 15 3 * * 1, or a macro such as @daily.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "expression"
  ],
  "properties": {
    "from": {
      "type": "string",
      "maxLength": 40,
      "description": "ISO 8601 date and time to count from. Defaults to now."
    },
    "count": {
      "type": "integer",
      "maximum": 10,
      "minimum": 1,
      "description": "How many upcoming runs to list. Defaults to 5."
    },
    "expression": {
      "type": "string",
      "maxLength": 100,
      "description": "Five fields: minute hour day-of-month month day-of-week, such as 15 3 * * 1, or a macro such as @daily."
    }
  }
}

csr_decoder

Decodes a pasted PEM certificate signing request (CSR): subject, names, key type and size, signature algorithm, whether the signature verifies, and findings. Private keys are refused.

read-only

Argument	Type	Description
csr*	string	One PEM certificate signing request, from -----BEGIN CERTIFICATE REQUEST----- to -----END CERTIFICATE REQUEST-----.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "csr"
  ],
  "properties": {
    "csr": {
      "type": "string",
      "maxLength": 20000,
      "description": "One PEM certificate signing request, from -----BEGIN CERTIFICATE REQUEST----- to -----END CERTIFICATE REQUEST-----."
    }
  }
}

dig

Sends a DNS query like the dig command, to Cloudflare, Google, Quad9 or a nameserver you name, and returns the full answer with flags and sections. Supports many record types, DNSSEC data and TCP.

read-only

Argument	Type	Description
ns	string	Nameserver name or IP, only with server=custom.
tcp	boolean	Use TCP instead of UDP.
name*	string	The name to look up, such as example.com, or an IP address for a PTR lookup.
type	string	Record type. Defaults to A.
norec	boolean	Turn recursion off (the +norec option), to ask an authoritative nameserver directly.
dnssec	boolean	Ask for DNSSEC records (the DO flag).
family	string	IP family to use. Defaults to auto.
server	string	Resolver to ask. Defaults to cloudflare. Use custom with ns for a specific nameserver.

Input schema (JSON)

dkim_check

Looks up and validates a DKIM public key. Give the selector if you know it; otherwise the common selectors are tried.

read-only

Argument	Type	Description
domain*	string	A domain name such as example.com. A full URL or an email address is reduced to its domain.
selector	string	DKIM selector (for example google or selector1). Leave out to try the common ones.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "maxLength": 300,
      "description": "A domain name such as example.com. A full URL or an email address is reduced to its domain."
    },
    "selector": {
      "type": "string",
      "maxLength": 63,
      "description": "DKIM selector (for example google or selector1). Leave out to try the common ones."
    }
  }
}

dmarc_check

Reads and validates a domain's DMARC record: policy, reporting addresses, alignment and percentage.

read-only

Argument	Type	Description
domain*	string	A domain name such as example.com. A full URL or an email address is reduced to its domain.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "maxLength": 300,
      "description": "A domain name such as example.com. A full URL or an email address is reduced to its domain."
    }
  }
}

dmarc_record_generator

Builds a DMARC TXT record for _dmarc.<domain>: policy, subdomain policy, percentage, report addresses and SPF and DKIM alignment. Returns the record and findings about reporting and policy strength.

read-only

Argument	Type	Description
domain	string	The domain the record is for, such as example.com. Optional.
policy	string	The p tag. Defaults to none.
percent	integer	Share of mail the policy applies to. Defaults to 100.
spf_alignment	string	r for relaxed (default) or s for strict.
dkim_alignment	string	r for relaxed (default) or s for strict.
failure_options	array	The fo tag values: 0, 1, d or s.
failure_reports	array	Email addresses for failure (ruf) reports.
subdomain_policy	string	The sp tag. Defaults to the same as policy.
aggregate_reports

dns_lookup

Looks up DNS records (A, AAAA, CNAME, MX, NS, TXT, SOA or CAA) for a domain through a public resolver. Other record types and specific nameservers are handled by the dig tool.

read-only

Argument	Type	Description
type	string	DNS record type. Defaults to A.
domain*	string	A domain name such as example.com. A full URL or an email address is reduced to its domain.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "type": {
      "enum": [
        "A",
        "AAAA",
        "CNAME",
        "MX",
        "NS",
        "TXT",
        "SOA",
        "CAA"
      ],
      "type": "string",
      "description": "DNS record type. Defaults to A."
    },
    "domain": {
      "type": "string",
      "maxLength": 300,
      "description": "A domain name such as example.com. A full URL or an email address is reduced to its domain."
    }
  }
}

dns_propagation

Asks several public resolvers around the world for the same record and reports whether they agree, which shows whether a DNS change has propagated.

read-only

Argument	Type	Description
type	string	DNS record type. Defaults to A.
domain*	string	A domain name such as example.com. A full URL or an email address is reduced to its domain.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "type": {
      "enum": [
        "A",
        "AAAA",
        "CNAME",
        "MX",
        "NS",
        "TXT",
        "SOA",
        "CAA"
      ],
      "type": "string",
      "description": "DNS record type. Defaults to A."
    },
    "domain": {
      "type": "string",
      "maxLength": 300,
      "description": "A domain name such as example.com. A full URL or an email address is reduced to its domain."
    }
  }
}

dns_trace

Follows a name from the root servers down through the TLD to its authoritative nameservers, like dig +trace, and shows each delegation step.

read-only

Argument	Type	Description
name*	string	The name to trace, such as www.example.com.
type	string	Record type. Defaults to A.
family	string	IP family to use. Defaults to auto.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "name"
  ],
  "properties": {
    "name": {
      "type": "string",
      "maxLength": 253,
      "description": "The name to trace, such as www.example.com."
    },
    "type": {
      "enum": [
        "A",
        "AAAA",
        "CNAME",
        "MX",
        "NS",
        "TXT",
        "SOA",
        "CAA",
        "SRV",
        "PTR",
        "DS",
        "DNSKEY",
        "HTTPS",
        "TLSA"
      ],
      "type": "string",
      "description": "Record type. Defaults to A."
    },
    "family": {
      "enum": [
        "4",
        "6",
        "auto"
      ],
      "type": "string",
      "description": "IP family to use. Defaults to auto."
    }
  }
}

dnssec_check

Checks whether a domain is signed with DNSSEC and whether its chain of trust (DS and DNSKEY records) is consistent.

read-only

Argument	Type	Description
domain*	string	A domain name such as example.com. A full URL or an email address is reduced to its domain.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "maxLength": 300,
      "description": "A domain name such as example.com. A full URL or an email address is reduced to its domain."
    }
  }
}

domain_name_ideas

Turns one to three keywords into about 60 domain name ideas (prefixes, suffixes, blends) plus common endings. Ideas only: availability is not checked.

read-only

Argument	Type	Description
keywords*	string	One to three words describing the idea, such as coffee shop berlin. Only the first three distinct words are used.
include_hyphenated	boolean	Also list hyphenated names (listed last, flagged). Defaults to false.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "keywords"
  ],
  "properties": {
    "keywords": {
      "type": "string",
      "maxLength": 80,
      "description": "One to three words describing the idea, such as coffee shop berlin. Only the first three distinct words are used."
    },
    "include_hyphenated": {
      "type": "boolean",
      "description": "Also list hyphenated names (listed last, flagged). Defaults to false."
    }
  }
}

email_blacklist_check

Checks whether a mail server IP address or a domain is listed on public DNS blocklists. Give exactly one of ip or domain.

read-only

Argument	Type	Description
ip	string	An IPv4 address of a mail server.
domain	string	A domain name to check on domain blocklists.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "ip": {
      "type": "string",
      "maxLength": 64,
      "description": "An IPv4 address of a mail server."
    },
    "domain": {
      "type": "string",
      "maxLength": 300,
      "description": "A domain name to check on domain blocklists."
    }
  }
}

email_deliverability_report

Scores a domain's email setup (MX, SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI, blocklists) and lists what to fix. Covers the whole email setup in one call, for a general email health question.

read-only

Argument	Type	Description
domain*	string	A domain name such as example.com. A full URL or an email address is reduced to its domain.
selector	string	DKIM selector (for example google or selector1). Leave out to try the common ones.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "maxLength": 300,
      "description": "A domain name such as example.com. A full URL or an email address is reduced to its domain."
    },
    "selector": {
      "type": "string",
      "maxLength": 63,
      "description": "DKIM selector (for example google or selector1). Leave out to try the common ones."
    }
  }
}

email_header_analyzer

Reads the raw headers of an email: the delivery path hop by hop with delays, SPF, DKIM and DMARC results, spam headers and findings. The headers are analysed in memory and are not stored.

read-only

Argument	Type	Description
headers*	string	The raw message headers, as shown by Show original or View message source in a mail app. The message body is ignored.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "headers"
  ],
  "properties": {
    "headers": {
      "type": "string",
      "maxLength": 100000,
      "description": "The raw message headers, as shown by Show original or View message source in a mail app. The message body is ignored."
    }
  }
}

hosting_check

Finds out who hosts a website: the IP addresses, the network and organisation behind them, the nameservers and any CDN in front.

read-only

Argument	Type	Description
domain*	string	A domain name such as example.com. A full URL or an email address is reduced to its domain.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "maxLength": 300,
      "description": "A domain name such as example.com. A full URL or an email address is reduced to its domain."
    }
  }
}

htaccess_generator

Builds a commented .htaccess file for Apache and LiteSpeed: force HTTPS, www or non-www, 301 redirects, error pages, security headers, caching, compression and IP blocks. Returns the file text and findings.

read-only

Argument	Type	Description
www	string	Redirect to the www or the non-www host. Defaults to none.
hsts	boolean	Send the Strict-Transport-Security header.
https	boolean	Redirect HTTP to HTTPS.
domain	string	The domain the record is for, such as example.com. Optional.
caching	boolean	Add browser caching rules.
nosniff	boolean	Send X-Content-Type-Options: nosniff.
block_ips	array	IPv4 or IPv6 addresses or CIDR ranges to block.
error_403	string	Path of the 403 page, such as /403.html.
error_404	string	Path of the 404 page, such as /404.html.

http3_test

Checks whether a site supports HTTP/2 and HTTP/3 (QUIC): ALPN negotiation, the Alt-Svc header and a live QUIC handshake probe.

read-only

Argument	Type	Description
host*	string	A public host name such as example.com.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "host"
  ],
  "properties": {
    "host": {
      "type": "string",
      "maxLength": 253,
      "description": "A public host name such as example.com."
    }
  }
}

http_headers_check

Fetches a page and reports its response headers, with a review of the security headers (HSTS, CSP, X-Frame-Options and others) and cookie flags.

read-only

Argument	Type	Description
url*	string	A website address such as https://example.com or just example.com. Only public sites on the standard ports can be checked.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "maxLength": 2048,
      "description": "A website address such as https://example.com or just example.com. Only public sites on the standard ports can be checked."
    }
  }
}

ip_lookup

Describes a public IP address: the announced prefix and AS number, the network's name, country, registry and the reverse DNS name.

read-only

Argument	Type	Description
ip*	string	A public IPv4 or IPv6 address.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "ip"
  ],
  "properties": {
    "ip": {
      "type": "string",
      "maxLength": 64,
      "description": "A public IPv4 or IPv6 address."
    }
  }
}

llms_txt_generator

Builds an llms.txt file in the llmstxt.org format from a site name, a summary, details and sections of links. Returns the file text and findings such as duplicate URLs or invalid links.

read-only

Argument	Type	Description
name*	string	Site or project name, used as the file's title.
details	string	Optional extra text under the summary.
summary	string	One or two sentences about the site.
sections	array	Sections of links. Each link needs an absolute http or https URL.
optional_links	array	Links for the Optional section.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "name"
  ],
  "properties": {
    "name": {
      "type": "string",
      "maxLength": 200,
      "minLength": 1,
      "description": "Site or project name, used as the file's title."
    },
    "details": {
      "type": "string",
      "maxLength": 5000,
      "description": "Optional extra text under the summary."
    },
    "summary": {
      "type": "string",
      "maxLength": 2000,
      "description": "One or two sentences about the site."
    },
    "sections": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "title",
          "links"
        ],
        "properties": {
          "links": {
            "type": "array",
            "items": {
              "type": "object",
              "required": [
                "url"
              ],
              "properties": {
                "url": {
                  "type": "string",
                  "maxLength": 2000
                },
                "note": {
                  "type": "string",
                  "maxLength": 500
                },
                "title": {
                  "type": "string",
                  "maxLength": 300
                }
              }
            },
            "maxItems": 200
          },
          "title": {
            "type": "string",
            "maxLength": 200
          }
        }
      },
      "maxItems": 20,
      "description": "Sections of links. Each link needs an absolute http or https URL."
    },
    "optional_links": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "url"
        ],
        "properties": {
          "url": {
            "type": "string",
            "maxLength": 2000
          },
          "note": {
            "type": "string",
            "maxLength": 500
          },
          "title": {
            "type": "string",
            "maxLength": 300
          }
        }
      },
      "maxItems": 200,
      "description": "Links for the Optional section."
    }
  }
}

mx_check

Lists the mail servers (MX records) of a domain with their priorities and checks that they resolve.

read-only

Argument	Type	Description
domain*	string	A domain name such as example.com. A full URL or an email address is reduced to its domain.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "maxLength": 300,
      "description": "A domain name such as example.com. A full URL or an email address is reduced to its domain."
    }
  }
}

punycode_convert

Converts international domain names between Unicode and Punycode (xn--) one name at a time, up to 20 names, and warns about mixed-script look-alike names.

read-only

Argument	Type	Description
domains*	array	Domain names to convert, such as münchen.de or xn--mnchen-3ya.de.
direction	string	auto picks the direction from the input. ascii encodes to Punycode, unicode decodes. Defaults to auto.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domains"
  ],
  "properties": {
    "domains": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 300
      },
      "maxItems": 20,
      "minItems": 1,
      "description": "Domain names to convert, such as münchen.de or xn--mnchen-3ya.de."
    },
    "direction": {
      "enum": [
        "auto",
        "ascii",
        "unicode"
      ],
      "type": "string",
      "description": "auto picks the direction from the input. ascii encodes to Punycode, unicode decodes. Defaults to auto."
    }
  }
}

redirect_check

Follows a URL's redirects hop by hop and reports each status code, the final address and problems such as loops, long chains or http-to-https gaps.

read-only

Argument	Type	Description
url*	string	A website address such as https://example.com or just example.com. Only public sites on the standard ports can be checked.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "maxLength": 2048,
      "description": "A website address such as https://example.com or just example.com. Only public sites on the standard ports can be checked."
    }
  }
}

reverse_dns

Finds the PTR (reverse DNS) name of an IP address and checks that the name resolves back to the same address (forward-confirmed reverse DNS), which mail servers look for.

read-only

Argument	Type	Description
ip*	string	A public IPv4 or IPv6 address.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "ip"
  ],
  "properties": {
    "ip": {
      "type": "string",
      "maxLength": 64,
      "description": "A public IPv4 or IPv6 address."
    }
  }
}

robots_txt_generator

Builds a robots.txt file: allow everything, block everything or custom Allow and Disallow paths, with sitemap URLs, a crawl delay and switches that block AI crawlers such as GPTBot and ClaudeBot. Returns the file and findings.

read-only

Argument	Type	Description
mode	string	allow lets every crawler in (default), block shuts them all out, custom uses disallow and allow paths.
allow	array	Paths to allow in custom mode, each starting with /.
disallow	array	Paths to block in custom mode, each starting with /.
sitemaps	array	Full sitemap URLs.
crawl_delay	number	Crawl-delay in seconds.
block_ai_bots	array	AI crawlers to block completely. One of: GPTBot, OAI-SearchBot, ChatGPT-User, ClaudeBot, Claude-User, PerplexityBot, Google-Extended, CCBot, Applebot-Extended, Bytespider.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "mode": {
      "enum": [
        "allow",
        "block",
        "custom"
      ],
      "type": "string",
      "description": "allow lets every crawler in (default), block shuts them all out, custom uses disallow and allow paths."
    },
    "allow": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 300
      },
      "maxItems": 100,
      "description": "Paths to allow in custom mode, each starting with /."
    },
    "disallow": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 300
      },
      "maxItems": 100,
      "description": "Paths to block in custom mode, each starting with /."
    },
    "sitemaps": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 500
      },
      "maxItems": 20,
      "description": "Full sitemap URLs."
    },
    "crawl_delay": {
      "type": "number",
      "maximum": 9999,
      "description": "Crawl-delay in seconds.",
      "exclusiveMinimum": 0
    },
    "block_ai_bots": {
      "type": "array",
      "items": {
        "enum": [
          "GPTBot",
          "OAI-SearchBot",
          "ChatGPT-User",
          "ClaudeBot",
          "Claude-User",
          "PerplexityBot",
          "Google-Extended",
          "CCBot",
          "Applebot-Extended",
          "Bytespider"
        ],
        "type": "string"
      },
      "maxItems": 10,
      "description": "AI crawlers to block completely. One of: GPTBot, OAI-SearchBot, ChatGPT-User, ClaudeBot, Claude-User, PerplexityBot, Google-Extended, CCBot, Applebot-Extended, Bytespider."
    }
  }
}

robots_txt_test

Fetches a site's robots.txt and tests whether a given crawler may fetch a given path, following RFC 9309. Also lists the Sitemap lines and parser warnings.

read-only

Argument	Type	Description
url*	string	A website address such as https://example.com or just example.com. Only public sites on the standard ports can be checked.
path	string	Path (and query) to test, starting with /. Defaults to /.
user_agent	string	Crawler token such as Googlebot, Bingbot, GPTBot or ClaudeBot. Defaults to Googlebot.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "maxLength": 2048,
      "description": "A website address such as https://example.com or just example.com. Only public sites on the standard ports can be checked."
    },
    "path": {
      "type": "string",
      "maxLength": 2000,
      "description": "Path (and query) to test, starting with /. Defaults to /."
    },
    "user_agent": {
      "type": "string",
      "maxLength": 100,
      "description": "Crawler token such as Googlebot, Bingbot, GPTBot or ClaudeBot. Defaults to Googlebot."
    }
  }
}

sitemap_check

Finds a site's XML sitemap (from robots.txt or the usual addresses), then validates it against the sitemaps.org protocol and Google's rules. Reads at most 5 MB; a sitemap index is validated as an index, its child sitemaps are listed but not fetched.

read-only

Argument	Type	Description
url*	string	A website address such as https://example.com or just example.com. Only public sites on the standard ports can be checked.
sitemap_url	string	A specific sitemap address to validate. Leave out to find it automatically.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "maxLength": 2048,
      "description": "A website address such as https://example.com or just example.com. Only public sites on the standard ports can be checked."
    },
    "sitemap_url": {
      "type": "string",
      "maxLength": 2048,
      "description": "A specific sitemap address to validate. Leave out to find it automatically."
    }
  }
}

smtp_test

Connects to a domain's mail servers (MX) on port 25, says EHLO, tries STARTTLS and reports banners, TLS and reverse DNS. It never sends mail.

read-only

Argument	Type	Description
domain*	string	The mail domain, such as example.com (not a mail server name).

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "maxLength": 253,
      "description": "The mail domain, such as example.com (not a mail server name)."
    }
  }
}

spf_check

Reads and validates a domain's SPF record: syntax, the 10-lookup limit, includes and the final policy.

read-only

Argument	Type	Description
domain*	string	A domain name such as example.com. A full URL or an email address is reduced to its domain.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "maxLength": 300,
      "description": "A domain name such as example.com. A full URL or an email address is reduced to its domain."
    }
  }
}

spf_record_generator

Builds an SPF TXT record from a mail setup: sending IPs, mail providers such as Google or Microsoft, the a and mx mechanisms and soft or hard fail. Returns the record, a DNS lookup estimate and findings.

read-only

Argument	Type	Description
a	boolean	Allow the domain's own A record to send mail.
mx	boolean	Allow the domain's MX hosts to send mail.
all	string	~ for soft fail (default) or - for hard fail.
ip4	array	IPv4 addresses or CIDR ranges that send mail, such as 203.0.113.5 or 198.51.100.0/24.
ip6	array	IPv6 addresses or CIDR ranges that send mail.
domain	string	The domain the record is for, such as example.com. Optional.
includes	array	Other domains to include, such as spf.mailjet.com.
providers	array	Mail providers to include. One of: google, microsoft, mailjet, sendgrid, mailgun, ses, zoho, brevo, mailchimp.

Input schema (JSON)

ssl_certificate_decoder

Decodes a pasted PEM certificate or chain: subject, issuer, validity dates, names, key, signature algorithm, fingerprints, extensions and findings, plus a chain order check. Private keys are refused.

read-only

Argument	Type	Description
certificate*	string	One PEM certificate or a whole chain, from -----BEGIN CERTIFICATE----- to -----END CERTIFICATE-----. At most 10 certificates are read.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "certificate"
  ],
  "properties": {
    "certificate": {
      "type": "string",
      "maxLength": 50000,
      "description": "One PEM certificate or a whole chain, from -----BEGIN CERTIFICATE----- to -----END CERTIFICATE-----. At most 10 certificates are read."
    }
  }
}

ssl_check

Makes live TLS connections to a host and reports the certificate chain, expiry, protocol versions, cipher strength and common misconfigurations. Ports 443, 8443, 465, 993 and 995.

read-only

Argument	Type	Description
host*	string	A public host name such as example.com.
port	any	Port to check, one of 443, 8443, 465, 993, 995. Defaults to 443.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "host"
  ],
  "properties": {
    "host": {
      "type": "string",
      "maxLength": 253,
      "description": "A public host name such as example.com."
    },
    "port": {
      "anyOf": [
        {
          "type": "number",
          "const": 443
        },
        {
          "type": "number",
          "const": 8443
        },
        {
          "type": "number",
          "const": 465
        },
        {
          "type": "number",
          "const": 993
        },
        {
          "type": "number",
          "const": 995
        }
      ],
      "description": "Port to check, one of 443, 8443, 465, 993, 995. Defaults to 443."
    }
  }
}

subnet_calculator

Works out the network, broadcast, host range, netmask and wildcard for an IPv4 or IPv6 address with a prefix, and can split an IPv4 network into equal smaller subnets.

read-only

Argument	Type	Description
mask	string	IPv4 only: prefix length (24 or /24) or dotted mask, when the address has none.
split	integer	IPv4 only: split the network into at least this many equal subnets (rounded up to a power of two; the first 256 are listed).
address*	string	IPv4 or IPv6 address with a prefix or mask, such as 192.168.1.10/24, 192.168.1.10 255.255.255.0 or 2001:db8::/48.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "address"
  ],
  "properties": {
    "mask": {
      "type": "string",
      "maxLength": 20,
      "description": "IPv4 only: prefix length (24 or /24) or dotted mask, when the address has none."
    },
    "split": {
      "type": "integer",
      "maximum": 4096,
      "minimum": 2,
      "description": "IPv4 only: split the network into at least this many equal subnets (rounded up to a power of two; the first 256 are listed)."
    },
    "address": {
      "type": "string",
      "maxLength": 100,
      "description": "IPv4 or IPv6 address with a prefix or mask, such as 192.168.1.10/24, 192.168.1.10 255.255.255.0 or 2001:db8::/48."
    }
  }
}

traceroute

Traces the network path from the probe server in Germany to a host, showing each hop's address and round-trip times.

read-only

Argument	Type	Description
host*	string	A public host name or IP address.
family	string	IP family to use. Defaults to auto.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "host"
  ],
  "properties": {
    "host": {
      "type": "string",
      "maxLength": 253,
      "description": "A public host name or IP address."
    },
    "family": {
      "enum": [
        "4",
        "6",
        "auto"
      ],
      "type": "string",
      "description": "IP family to use. Defaults to auto."
    }
  }
}

ttfb_test

Times three requests to a web address from the probe server in Germany: DNS, connect, TLS, time to first byte and download. Results are never cached.

read-only

Argument	Type	Description
url*	string	A web address such as https://example.com/. Public sites on standard ports only.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "maxLength": 2048,
      "description": "A web address such as https://example.com/. Public sites on standard ports only."
    }
  }
}

uptime_calculator

Turns an uptime percentage such as 99.9 into the downtime it allows per day, week, month, quarter and year, or turns a length of downtime in a period into the uptime percentage.

read-only

Argument	Type	Description
period	string	Period the downtime falls in. Defaults to month.
sla_percent	string	Uptime percentage above 0 and up to 100, at most 5 decimals, such as 99.9 or 99.95%.
downtime_hours	number	Hours of downtime, to get the uptime percentage.
downtime_minutes	number	Minutes of downtime, added to downtime_hours.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "period": {
      "enum": [
        "day",
        "week",
        "month",
        "quarter",
        "year"
      ],
      "type": "string",
      "description": "Period the downtime falls in. Defaults to month."
    },
    "sla_percent": {
      "type": "string",
      "maxLength": 12,
      "description": "Uptime percentage above 0 and up to 100, at most 5 decimals, such as 99.9 or 99.95%."
    },
    "downtime_hours": {
      "type": "number",
      "maximum": 100000,
      "minimum": 0,
      "description": "Hours of downtime, to get the uptime percentage."
    },
    "downtime_minutes": {
      "type": "number",
      "maximum": 6000000,
      "minimum": 0,
      "description": "Minutes of downtime, added to downtime_hours."
    }
  }
}

url_status_check

Fetches up to 10 URLs from one site and reports each one's final status code, redirects, content type and X-Robots-Tag. Useful for spot-checking pages listed in a sitemap.

read-only

Argument	Type	Description
urls*	array	1 to 10 addresses, all on the same site.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "urls"
  ],
  "properties": {
    "urls": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 2048
      },
      "maxItems": 10,
      "minItems": 1,
      "description": "1 to 10 addresses, all on the same site."
    }
  }
}

website_down_check

Checks whether a website is reachable from Cloudflare's network: DNS first, then one request. Separates 'does not resolve' from 'will not connect' and 'answers with an error'.

read-only

Argument	Type	Description
url*	string	A website address such as https://example.com or just example.com. Only public sites on the standard ports can be checked.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "maxLength": 2048,
      "description": "A website address such as https://example.com or just example.com. Only public sites on the standard ports can be checked."
    }
  }
}

what_is_my_ip

Returns the IP address this request reached the server from, and whether it is IPv4 or IPv6. For desktop clients such as Claude Code or Cursor that is the user's own address; hosted chat apps connect from the provider's servers.

read-only

No arguments.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {}
}

whois_lookup

Looks up a domain's registration data over RDAP: registrar, creation, expiry and update dates, status and nameservers. Not every country code TLD publishes RDAP.

read-only

Argument	Type	Description
domain*	string	A domain name such as example.com. A full URL or an email address is reduced to its domain.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "maxLength": 300,
      "description": "A domain name such as example.com. A full URL or an email address is reduced to its domain."
    }
  }
}

Tool changes

What changed in this server's tools since we started watching, newest first. Each change is scanned again.

csr_decoderaddedNov 11, 2026
Decodes a pasted PEM certificate signing request (CSR): subject, names, key type and size, signature algorithm, whether the signature verifies, and findings. Private keys are refused.
ssl_certificate_decoderaddedNov 11, 2026
Decodes a pasted PEM certificate or chain: subject, issuer, validity dates, names, key, signature algorithm, fingerprints, extensions and findings, plus a chain order check. Private keys are refused.
email_header_analyzeraddedNov 11, 2026
Reads the raw headers of an email: the delivery path hop by hop with delays, SPF, DKIM and DMARC results, spam headers and findings. The headers are analysed in memory and are not stored.
llms_txt_generatoraddedNov 11, 2026
Builds an llms.txt file in the llmstxt.org format from a site name, a summary, details and sections of links. Returns the file text and findings such as duplicate URLs or invalid links.
htaccess_generatoraddedNov 11, 2026
Builds a commented .htaccess file for Apache and LiteSpeed: force HTTPS, www or non-www, 301 redirects, error pages, security headers, caching, compression and IP blocks. Returns the file text and findings.
robots_txt_generatoraddedNov 11, 2026
Builds a robots.txt file: allow everything, block everything or custom Allow and Disallow paths, with sitemap URLs, a crawl delay and switches that block AI crawlers such as GPTBot and ClaudeBot. Returns the file and findings.
dmarc_record_generatoraddedNov 11, 2026
Builds a DMARC TXT record for _dmarc.<domain>: policy, subdomain policy, percentage, report addresses and SPF and DKIM alignment. Returns the record and findings about reporting and policy strength.
spf_record_generatoraddedNov 11, 2026
Builds an SPF TXT record from a mail setup: sending IPs, mail providers such as Google or Microsoft, the a and mx mechanisms and soft or hard fail. Returns the record, a DNS lookup estimate and findings.
domain_name_ideasaddedNov 11, 2026
Turns one to three keywords into about 60 domain name ideas (prefixes, suffixes, blends) plus common endings. Ideas only: availability is not checked.
punycode_convertaddedNov 11, 2026
Converts international domain names between Unicode and Punycode (xn--) one name at a time, up to 20 names, and warns about mixed-script look-alike names.
cron_expressionaddedNov 11, 2026
Reads a classic 5-field cron expression (or @daily, @hourly, @reboot) and returns a plain-English description, the expanded form and the next run times in UTC.
uptime_calculatoraddedNov 11, 2026
Turns an uptime percentage such as 99.9 into the downtime it allows per day, week, month, quarter and year, or turns a length of downtime in a period into the uptime percentage.
chmod_calculatoraddedNov 11, 2026
Converts Unix file permissions between octal (755, 4755) and symbolic (rwxr-xr-x) form, shows the chmod command, explains who can read, write and run, and flags risky modes such as 777.
bandwidth_calculatoraddedNov 11, 2026
Two calculations: monthly data transfer and average speed for a website (visitors, pages per visit, page size), or how long a file takes to move at a given connection speed. Decimal units unless MiB, GiB or TiB are given.
subnet_calculatoraddedNov 11, 2026
Works out the network, broadcast, host range, netmask and wildcard for an IPv4 or IPv6 address with a prefix, and can split an IPv4 network into equal smaller subnets.
what_is_my_ipaddedNov 11, 2026
Returns the IP address this request reached the server from, and whether it is IPv4 or IPv6. For desktop clients such as Claude Code or Cursor that is the user's own address; hosted chat apps connect from the provider's servers.

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "name"
  ],
  "properties": {
    "ns": {
      "type": "string",
      "maxLength": 253,
      "description": "Nameserver name or IP, only with server=custom."
    },
    "tcp": {
      "type": "boolean",
      "description": "Use TCP instead of UDP."
    },
    "name": {
      "type": "string",
      "maxLength": 253,
      "description": "The name to look up, such as example.com, or an IP address for a PTR lookup."
    },
    "type": {
      "enum": [
        "A",
        "AAAA",
        "CNAME",
        "MX",
        "NS",
        "TXT",
        "SOA",
        "CAA",
        "SRV",
        "PTR",
        "DS",
        "DNSKEY",
        "HTTPS",
        "TLSA"
      ],
      "type": "string",
      "description": "Record type. Defaults to A."
    },
    "norec": {
      "type": "boolean",
      "description": "Turn recursion off (the +norec option), to ask an authoritative nameserver directly."
    },
    "dnssec": {
      "type": "boolean",
      "description": "Ask for DNSSEC records (the DO flag)."
    },
    "family": {
      "enum": [
        "4",
        "6",
        "auto"
      ],
      "type": "string",
      "description": "IP family to use. Defaults to auto."
    },
    "server": {
      "enum": [
        "cloudflare",
        "google",
        "quad9",
        "custom"
      ],
      "type": "string",
      "description": "Resolver to ask. Defaults to cloudflare. Use custom with ns for a specific nameserver."
    }
  }
}

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "www": {
      "enum": [
        "none",
        "www",
        "non-www"
      ],
      "type": "string",
      "description": "Redirect to the www or the non-www host. Defaults to none."
    },
    "hsts": {
      "type": "boolean",
      "description": "Send the Strict-Transport-Security header."
    },
    "https": {
      "type": "boolean",
      "description": "Redirect HTTP to HTTPS."
    },
    "domain": {
      "type": "string",
      "maxLength": 253,
      "description": "The domain the record is for, such as example.com. Optional."
    },
    "caching": {
      "type": "boolean",
      "description": "Add browser caching rules."
    },
    "nosniff": {
      "type": "boolean",
      "description": "Send X-Content-Type-Options: nosniff."
    },
    "block_ips": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 60
      },
      "maxItems": 200,
      "description": "IPv4 or IPv6 addresses or CIDR ranges to block."
    },
    "error_403": {
      "type": "string",
      "maxLength": 500,
      "description": "Path of the 403 page, such as /403.html."
    },
    "error_404": {
      "type": "string",
      "maxLength": 500,
      "description": "Path of the 404 page, such as /404.html."
    },
    "error_500": {
      "type": "string",
      "maxLength": 500,
      "description": "Path of the 500 page, such as /500.html."
    },
    "redirects": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "from",
          "to"
        ],
        "properties": {
          "to": {
            "type": "string",
            "maxLength": 1000
          },
          "from": {
            "type": "string",
            "maxLength": 500
          }
        }
      },
      "maxItems": 200,
      "description": "301 redirects from an old path to a new path or URL."
    },
    "no_indexes": {
      "type": "boolean",
      "description": "Turn off directory listings."
    },
    "compression": {
      "type": "boolean",
      "description": "Compress text responses."
    },
    "protect_files": {
      "type": "boolean",
      "description": "Block access to sensitive files such as .env and .git."
    },
    "hsts_subdomains": {
      "type": "boolean",
      "description": "Add includeSubDomains to HSTS."
    },
    "referrer_policy": {
      "type": "boolean",
      "description": "Send a Referrer-Policy header."
    },
    "frame_protection": {
      "type": "boolean",
      "description": "Send X-Frame-Options."
    },
    "hotlink_protection": {
      "type": "boolean",
      "description": "Block other sites from embedding images. Needs domain."
    },
    "permissions_policy": {
      "type": "boolean",
      "description": "Send a Permissions-Policy header."
    },
    "redirects_are_regex": {
      "type": "boolean",
      "description": "Treat the from values as regular expressions."
    }
  }
}

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "a": {
      "type": "boolean",
      "description": "Allow the domain's own A record to send mail."
    },
    "mx": {
      "type": "boolean",
      "description": "Allow the domain's MX hosts to send mail."
    },
    "all": {
      "enum": [
        "~",
        "-"
      ],
      "type": "string",
      "description": "~ for soft fail (default) or - for hard fail."
    },
    "ip4": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 50
      },
      "maxItems": 50,
      "description": "IPv4 addresses or CIDR ranges that send mail, such as 203.0.113.5 or 198.51.100.0/24."
    },
    "ip6": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 60
      },
      "maxItems": 50,
      "description": "IPv6 addresses or CIDR ranges that send mail."
    },
    "domain": {
      "type": "string",
      "maxLength": 253,
      "description": "The domain the record is for, such as example.com. Optional."
    },
    "includes": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 253
      },
      "maxItems": 20,
      "description": "Other domains to include, such as spf.mailjet.com."
    },
    "providers": {
      "type": "array",
      "items": {
        "enum": [
          "google",
          "microsoft",
          "mailjet",
          "sendgrid",
          "mailgun",
          "ses",
          "zoho",
          "brevo",
          "mailchimp"
        ],
        "type": "string"
      },
      "maxItems": 20,
      "description": "Mail providers to include. One of: google, microsoft, mailjet, sendgrid, mailgun, ses, zoho, brevo, mailchimp."
    }
  }
}

TPC Hosting Free Tools

Registry entry

Try it

asn_lookup Read-only

TPC Hosting Free Tools

Registry entry

Try it

asn_lookup Read-only

Install

Tools (44)

Security checkA100/100

Tool changes