Is it down, or just you?
Maintain this server? Claim it
Call this server's tools from your browser. Nothing to install.
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.
Use this when the user asks for a "security headers check", "http status checker", or "website status" or wants to know which HTTPS and security headers a website sends: it makes one live request from the edge network and reports the six key headers (Strict-Transport-Security, Content-Security-Policy, X-Content-Type-Options, X-Frame-Options or frame-ancestors, Referrer-Policy, Permissions-Policy) with an A-F grade, plus TLS, robots.txt and a CSV download. It checks one address at a time, cannot check private or reserved addresses, and does not scan the page content. Do not use for vulnerability tests or checks of more than one site.
One website to check the security headers and HTTPS for, e.g. https://example.com.
Use this when the user asks for a "security headers check", "http status checker", or "website status" or wants to know which HTTPS and security headers a website sends: it makes one live request from the edge network and reports the six key headers (Strict-Transport-Security, Content-Security-Policy, X-Content-Type-Options, X-Frame-Options or frame-ancestors, Referrer-Policy, Permissions-Policy) with an A-F grade, plus TLS, robots.txt and a CSV download. It checks one address at a time, cannot check private or reserved addresses, and does not scan the page content. Do not use for vulnerability tests or checks of more than one site.
| Argument | Type | Description |
|---|---|---|
| url* | string | One website to check the security headers and HTTPS for, e.g. https://example.com. |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"maxLength": 2048,
"description": "One website to check the security headers and HTTPS for, e.g. https://example.com."
}
}
}Use this when the user asks "is it down", "is this website down", "website down checker", "check if site is up", or "website status" for one or more domains: it makes a live request from the edge network and reports the verdict, redirect chain, HTTP status, response time, TLS, page title and security headers for up to 10 URLs, plus a CSV download. It cannot check IP literals, private or reserved addresses, or ports other than 80 and 443, and a site can block the check. Do not use for monitoring, uptime history, or checking an internal or private address.
| Argument | Type | Description |
|---|---|---|
| urls* | array | The websites to check, 1 to 10. Each entry is a domain such as example.com or a full http(s) address, e.g. ["example.com", "https://www.cloudflare.com"]. |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"urls"
],
"properties": {
"urls": {
"type": "array",
"items": {
"type": "string",
"maxLength": 2048
},
"maxItems": 10,
"minItems": 1,
"description": "The websites to check, 1 to 10. Each entry is a domain such as example.com or a full http(s) address, e.g. [\"example.com\", \"https://www.cloudflare.com\"]."
}
}
}