SiteHealth MCP

Full website health audit — SSL, DNS, DMARC/SPF/DKIM, performance, uptime, links

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

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We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

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

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

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

config.json

{
  "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

Free vs Pro

Tool	Free	Pro ($19/mo)
`check_ssl`	Yes	Yes
`check_dns`	Yes	Yes
`audit_site`	-	Yes
`check_email_auth`	-	Yes
`check_performance`	-	Yes
`check_uptime`	-	Yes
`check_links`	-	Yes

Free tier gives you SSL and DNS checks. Pro unlocks the full 6-check audit with A-F scoring, email authentication, performance, uptime, and broken link detection.

Upgrade to Pro on MCPize — $19/mo or $190/yr.

Example Output

config.json

{
  "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.

Code

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

Terminal

npx sitehealth-mcp

License

MIT — Built by Freedom Engineers

SelfHeal MCP — Self-healing proxy for MCP servers
LeadEnrich MCP — Waterfall lead enrichment

Read the full README →View source on GitHub →

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Frequently Asked Questions about SiteHealth MCP

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "sitehealth-mcp": { "command": "npx", "args": ["-y", "SiteHealth MCP"] } }

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Technical Specs & Signals

CategoryMonitoring

35Quality signal: Fair · 35/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools15/30

Adoption & activity1/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

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More in 📊 Monitoring →Best MCP servers for Monitoring & Observability →Alternatives to SiteHealth MCP →Install in Claude Desktop Install in Cursor Install in VS Code

Documentation Overview

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

config.json

{
  "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

Free vs Pro

Tool	Free	Pro ($19/mo)
`check_ssl`	Yes	Yes
`check_dns`	Yes	Yes
`audit_site`	-	Yes
`check_email_auth`	-	Yes
`check_performance`	-	Yes
`check_uptime`	-	Yes
`check_links`	-	Yes

Free tier gives you SSL and DNS checks. Pro unlocks the full 6-check audit with A-F scoring, email authentication, performance, uptime, and broken link detection.

Upgrade to Pro on MCPize — $19/mo or $190/yr.

Example Output

config.json

{
  "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.

Code

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

Terminal

npx sitehealth-mcp

License

MIT — Built by Freedom Engineers

SelfHeal MCP — Self-healing proxy for MCP servers
LeadEnrich MCP — Waterfall lead enrichment