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:dmarc@example.com",
    "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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