# CheckWebsiteNow

**Canonical:** https://apis.io/providers/checkwebsitenow-com/  
**Website:** https://checkwebsitenow.com/  
**APIs profiled:** 1

CheckWebsiteNow is a website-down checker and troubleshooting resource: it checks whether a single public website answers from one measurement point (HTTPS homepage response headers, up to five verified HTTPS redirects) and explains browser, HTTP, DNS and certificate errors with plain-language fix steps for visitors and site owners. It publishes a JSON HTTP API described in /openapi.json (POST /api/v1/check), an Agent Readability Score, llms.txt indexes and an MCP endpoint for AI agents. It is a small independent project operated by Marcus Wolf in Wangen, Switzerland.

## Kin Score — 39.1 / 100 (thin)

Scored 2026-11-13 under rubric 0.28.0.

| Facet | Score |
|---|---|
| Discoverability | 66.7 |
| Contract Quality | 50.9 |
| Contract Governance | 35.6 |
| Operational Transparency | 50.0 |
| Developer Ergonomics | 23.2 |
| Access Clarity | 29.8 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 8.8 (matched via fallback).

## Agent readiness — 35.4 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | partial |
| Rate Limit Signal | verified |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | yes |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |
| Pagination Ratio | no |
| Operation Distinctiveness | distinct |
| MCP Tool Quality | na |

## Access

Free · Open access — onboarding: open, pricing: free, trial: no (confidence: high).

## APIs (14)

- **CheckWebsiteNow Access Solutions API** — The Access Solutions API from CheckWebsiteNow — 1 operation(s) for access solutions.
- **CheckWebsiteNow Agent Check API** — The Agent Check API from CheckWebsiteNow — 1 operation(s) for agent check.
- **CheckWebsiteNow Agent Readability Method API** — The Agent Readability Method API from CheckWebsiteNow — 1 operation(s) for agent readability method.
- **CheckWebsiteNow Check API** — The Check API from CheckWebsiteNow — 1 operation(s) for check.
- **CheckWebsiteNow Errors API** — The Errors API from CheckWebsiteNow — 3 operation(s) for errors.
- **CheckWebsiteNow Guides API** — The Guides API from CheckWebsiteNow — 3 operation(s) for guides.
- **CheckWebsiteNow Llms Full.txt API** — The Llms Full.txt API from CheckWebsiteNow — 1 operation(s) for llms full.txt.
- **CheckWebsiteNow MCP API** — The Mcp API from CheckWebsiteNow — 2 operation(s) for mcp.
- **CheckWebsiteNow Methodology API** — The Methodology API from CheckWebsiteNow — 1 operation(s) for methodology.
- **CheckWebsiteNow Sponsored Offers API** — The Sponsored Offers API from CheckWebsiteNow — 1 operation(s) for sponsored offers.
- **CheckWebsiteNow Stats API** — The Stats API from CheckWebsiteNow — 1 operation(s) for stats.
- **CheckWebsiteNow Status Sites API** — The Status Sites API from CheckWebsiteNow — 1 operation(s) for status sites.
- **CheckWebsiteNow Vpn API** — The Vpn API from CheckWebsiteNow — 1 operation(s) for vpn.
- **CheckWebsiteNow .well Known API** — The .well Known API from CheckWebsiteNow — 3 operation(s) for .well known.

## MCP servers (1)

- **CheckWebsiteNow MCP Server** — Remote MCP server at checkwebsitenow.com; 9 tools listed.

## Agentic access (1)

- **CheckWebsiteNow Agentic Access** — 21 operations · 3 acting

## Security (2)

- **CheckWebsiteNow Authentication** — 0 schemes
- **CheckWebsiteNow Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **CheckWebsiteNow Plans Pricing**

## Tags

Company, Website Monitoring, Uptime, Website Down Checker, HTTPErrors, DNS, SSL Certificates, Troubleshooting, MCP, AI Agents

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/checkwebsitenow-com/). Scores are computed from the provider's own public artifacts under a published rubric.