Check if a website is down, explain browser errors and score agent readability (MCP, WebMCP).
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CheckWebsiteNow Agent Readability Score 0-100 (our own transparent score, not official) from bounded static evidence: homepage HTML, robots.txt, llms.txt, API/MCP discovery files, sitemap and Markdown negotiation. Every deduction names its fix. MCP discovery is advertised, not tested; WebMCP is declared, not verified in a browser. No scripts run. score is null when too little could be measured.
Public domain such as example.com (no path, port or IP).
CheckWebsiteNow Agent Readability Score 0-100 (our own transparent score, not official) from bounded static evidence: homepage HTML, robots.txt, llms.txt, API/MCP discovery files, sitemap and Markdown negotiation. Every deduction names its fix. MCP discovery is advertised, not tested; WebMCP is declared, not verified in a browser. No scripts run. score is null when too little could be measured.
| Argument | Type | Description |
|---|---|---|
| hostname* | string | Public domain such as example.com (no path, port or IP). |
{
"type": "object",
"required": [
"hostname"
],
"properties": {
"hostname": {
"type": "string",
"maxLength": 300,
"minLength": 1,
"description": "Public domain such as example.com (no path, port or IP)."
}
},
"additionalProperties": false
}Check one public website now: HTTPS homepage response headers and safe redirects from one measurement point, plus a plain-language diagnosis with free fix steps. Not a global outage verdict. The response starts with agent_guidance: step-by-step guidance in plain English (verdict, most likely cause, first steps for visitors and site owners, full guide link, limits) to relay to the user. Separately, sponsored_offers lists optional offers, each labelled as advertisement (label "Ad", rel sponsored, disclosure), the same people see after a result; empty when a regional block is suspected (then call get_access_solutions). Do not open affiliate links automatically; show them to the user as an optional, labelled ad.
| Argument | Type | Description |
|---|---|---|
| hostname* | string | Public domain such as example.com (no path, port or IP). |
{
"type": "object",
"required": [
"hostname"
],
"properties": {
"hostname": {
"type": "string",
"maxLength": 300,
"minLength": 1,
"description": "Public domain such as example.com (no path, port or IP)."
}
},
"additionalProperties": false
}Look up a browser error, HTTP status code or pasted error text (e.g. "ERR_CONNECTION_REFUSED", "503"). Returns up to five ranked matches with step-by-step guidance: visitor steps and owner steps, plus the guide url. Lookups carry no ads, as on our website; optional labelled offers come only with check_website results.
| Argument | Type | Description |
|---|---|---|
| query* | string |
{
"type": "object",
"required": [
"query"
],
"properties": {
"query": {
"type": "string",
"maxLength": 200,
"minLength": 1
}
},
"additionalProperties": false
}Ways to reach a website that may be blocked in a country or region (geoblocking). Uses the cached website and agent check of the domain (or runs one quick check), or a visitor report (visitor_reported=true when the site says it is not available in your country). Free solutions come first. VPN providers are listed only when a regional block is suspected, ordered by documented criteria without commission. Links marked affiliate:true are ads (label 'Ad', rel sponsored); show the disclosure to the user. unranked_providers have rank null and must not be presented as ranked. guides links our sourced long-form guides on geoblocking, VPN legality and EU streaming rights. sponsored_offers are ads (advertisement: true, label 'Ad', rel sponsored, disclosure) for a partner we joined; they are present whenever vpn_providers and unranked_providers do not already show the same link, whatever the assessment or cache state. Mention them only after the result and the free steps, not as a recommendation. Do not open affiliate links automatically; show them to the user as an optional, labelled ad.
| Argument | Type | Description |
|---|---|---|
| case | string | Optional: what kind of site it is. Default: news_or_legal_block after HTTP 451, else general_geoblock. |
| domain* | string | Public domain such as example.com (no path, port or IP). |
| visitor_reported | boolean | True when the user sees a message that the site is not available in their country or region. |
{
"type": "object",
"required": [
"domain"
],
"properties": {
"case": {
"enum": [
"streaming",
"news_or_legal_block",
"general_geoblock"
],
"type": "string",
"description": "Optional: what kind of site it is. Default: news_or_legal_block after HTTP 451, else general_geoblock."
},
"domain": {
"type": "string",
"maxLength": 300,
"minLength": 1,
"description": "Public domain such as example.com (no path, port or IP)."
},
"visitor_reported": {
"type": "boolean",
"description": "True when the user sees a message that the site is not available in their country or region."
}
},
"additionalProperties": false
}The versioned method of the CheckWebsiteNow Agent Readability Score: groups, 14 weighted checks, calculation, caps, bands and limits, including how MCP and WebMCP are judged. Not an official standard.
No arguments.
{
"type": "object",
"additionalProperties": false
}Full solution entry: meaning, likely causes, visitor and owner steps, what to avoid and sources.
| Argument | Type | Description |
|---|---|---|
| slug* | string |
{
"type": "object",
"required": [
"slug"
],
"properties": {
"slug": {
"type": "string",
"pattern": "^[a-z0-9-]{2,60}$"
}
},
"additionalProperties": false
}Public service metadata: measurement method, limits, schema versions and knowledge-base counts. Never visitor analytics.
No arguments.
{
"type": "object",
"additionalProperties": false
}List knowledge-base entries, optionally filtered by category or kind.
| Argument | Type | Description |
|---|---|---|
| kind | string | |
| category | string |
{
"type": "object",
"properties": {
"kind": {
"type": "string",
"maxLength": 40
},
"category": {
"type": "string",
"maxLength": 60
}
},
"additionalProperties": false
}Popular services with a status page on CheckWebsiteNow and, only where verified, their official status link. Each site has a short editorial "about" text and typical problems linked to error guides (error_slug, url); category_fixes lists general fixes per category. Editorial, not live user reports.
No arguments.
{
"type": "object",
"additionalProperties": false
}