SiteHealth MCP

Full website health audit in one MCP tool call. Zero API keys required.

One call. Six checks. Scored report.

One-click install: Install on MCPize | npx sitehealth-mcp

Features

• SSL Certificate — validity, expiry, issuer, protocol, SANs
• DNS Health — A/AAAA/MX/NS/CNAME/TXT/SOA, IPv6, resolution time
• Email Auth — DMARC, SPF, DKIM validation with fix recommendations
• Page Performance — TTFB, load time, page weight, compression, caching
• Uptime — HTTP ping with response time
• Broken Links — extract and check page links for 4xx/5xx responses
• Health Score — weighted 0-100 score with letter grade (A-F)

Quick Start

{ "mcpServers": { "sitehealth": { "command": "npx", "args": ["-y", "sitehealth-mcp"] } } }

Then ask your AI agent:

"Audit the health of example.com"

Tools

Tool	Description
audit_site	Full audit — all 6 checks, scored report
check_ssl	SSL cert validity and expiry
check_dns	DNS records and resolution
check_email_auth	DMARC/SPF/DKIM validation
check_performance	TTFB, load time, page weight
check_uptime	HTTP ping + response time
check_links	Broken link detection

Example Output

{ "url": "https://example.com", "overallScore": 82, "overallGrade": "B", "criticalIssues": [ "No DMARC record — required by Gmail/Yahoo/Microsoft for deliverability" ], "warnings": [ "SSL certificate expires in 28 days — renew soon", "2 broken links found out of 47 checked" ], "recommendations": [ "Add a DMARC record: v=DMARC1; p=quarantine; rua=mailto:[email protected]", "Enable gzip/brotli compression to reduce transfer size" ] }

How It Works

All checks use Node.js builtins (tls, dns/promises, fetch) — no external API keys, no costs, no rate limits.

audit_site("example.com")
  ├── SSL check     (tls socket)      → cert validity, expiry
  ├── DNS check     (dns/promises)    → record resolution
  ├── Email auth    (DNS TXT lookups) → DMARC, SPF, DKIM
  ├── Performance   (timed fetch)     → TTFB, page weight
  ├── Uptime        (HEAD request)    → reachability
  └── Broken links  (page crawl)     → link validation
        ↓
  Weighted score (0-100) + grade (A-F) + recommendations

Scoring Weights

Check	Weight
SSL	20%
Performance	20%
Uptime	20%
Email Auth	15%
Links	15%
DNS	10%

Install

MCPize (Recommended)

One-click install with managed hosting: Install on MCPize

npm

npx sitehealth-mcp

License

MIT — Built by Freedom Engineers

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