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CheckWebsiteNow MCP Server

by checkwebsitenow Your server? Claim it
answering

CheckWebsiteNow is answering right now. Last checked 3 min ago. It exposes 9 tools.

Check if a website is down, explain browser errors and score agent readability (MCP, WebMCP).

Uptime history 67 hours of history
67 hours agonow
100.0%
Uptime 24h
92 of 92 checks
9
Tools
read from the server
224 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check CheckWebsiteNow every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

run in your terminal
claude mcp add checker --transport http https://checkwebsitenow.com/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "checker": {
      "url": "https://checkwebsitenow.com/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.checker]
url = "https://checkwebsitenow.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "checker": {
      "url": "https://checkwebsitenow.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "checker": {
      "url": "https://checkwebsitenow.com/mcp"
    }
  }
}

Available tools 9

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

agent
check_agent_readability
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.
get_agent_readability_method
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.
access
get_access_solutions
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.
error
get_error
Full solution entry: meaning, likely causes, visitor and owner steps, what to avoid and sources.
errors
list_errors
List knowledge-base entries, optionally filtered by category or kind.
explain
explain_error
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.
service
get_service_info
Public service metadata: measurement method, limits, schema versions and knowledge-base counts. Never visitor analytics.
status
list_status_sites
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.
website
check_website
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.

Endpoints

URLTransportStateLatencyChecked
https://checkwebsitenow.com/mcp streamable-http answering 252 ms 3 min ago

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CheckWebsiteNow — questions

Answers built from our own checks of this server.

What can CheckWebsiteNow do?
It exposes 9 tools, read directly from the server on our last check. Among them: check_agent_readability, check_website, explain_error, get_access_solutions, get_agent_readability_method, get_error and 3 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is CheckWebsiteNow working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 224 ms. The bar chart above shows every period we have measured.
How do I connect CheckWebsiteNow?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does CheckWebsiteNow need an API key?
No. CheckWebsiteNow completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 9 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is CheckWebsiteNow?
It answers our handshake in 224 ms on average, which is faster than 56% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.