Search / com.modernmustardseed/domain-health
protogridR0· no sign-inDomain checks: SPF, DKIM, DMARC, BIMI, MTA-STS, SSL/TLS and HTTP security headers.
v1.0.0 · active · website · descriptor JSON · versions
{
"mcpServers": {
"domain-health": {
"type": "http",
"url": "https://mcp.modernmustardseed.com/domain-health"
}
}
}claude mcp add --transport http domain-health https://mcp.modernmustardseed.com/domain-health[mcp_servers.domain-health]
url = "https://mcp.modernmustardseed.com/domain-health"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"domain-health": {
"type": "remote",
"url": "https://mcp.modernmustardseed.com/domain-health",
"enabled": true
}
}
}{
"mcpServers": {
"domain-health": {
"type": "http",
"url": "https://mcp.modernmustardseed.com/domain-health"
}
},
"deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=domain-health&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbWNwLm1vZGVybm11c3RhcmRzZWVkLmNvbS9kb21haW4taGVhbHRoIn0%3D"
}{
"servers": {
"domain-health": {
"type": "http",
"url": "https://mcp.modernmustardseed.com/domain-health"
}
}
}{
"mcpServers": {
"domain-health": {
"httpUrl": "https://mcp.modernmustardseed.com/domain-health"
}
}
}extensions:
"domain-health":
enabled: true
name: "domain-health"
type: streamable_http
uri: "https://mcp.modernmustardseed.com/domain-health"
timeout: 300
protocol.modernsupports 2026-07-28 (server/discover)protocol.statelessanswers without a sessionprotocol.transportstreamable HTTPprotocol.list_ttltools/list declares ttlMs 0, so clients re-fetch it on every useauth.prm, auth.as_metadata, auth.cimdno remote uses OAuthauth.secret_in_urlno templated URLtools.descriptionsevery tool has a descriptiontools.description_lengthdescriptions are concisetools.schemasevery tool has an object input schematools.annotations5 of 5 tools declare readOnlyHint or destructiveHinttools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHinttools.token_costabout 1,586 tokens to load every tooltools.api_dumptools are not a one-to-one API dumpstability.changesno tool changes in 30 daysstability.rug_pullno tool changed its meaning under the same namedeps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI packageNo tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.
Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.
+dns-namespace +website +reachable +uptime-100% +updated-8d-ago -no-repository
Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.
| remote | auth | reachable | uptime 30d | p50 | protocol | last ok |
|---|---|---|---|---|---|---|
https://mcp.modernmustardseed.com/domain-health streamable-http | none | yes | 100% | 228 ms | 2026-07-28 | 2026-10-19 |
check_domain_registrationread-only | Read a domain's public registration record from its registry over RDAP (no WHOIS scraping): registrar, creation, expiry and last-change dates, status locks such as clientTransferProhibited, danger states such as redemption period or hold, and nameservers. Also compares the registry's nameservers with the live zone and checks DNSSEC. Subdomains are checked as their registered domain. Some country-code registries do not publish RDAP; the tool says so. |
check_email_authread-only | Explain in plain words whether email from a domain will reach the inbox and whether others can forge it. Checks MX, SPF with every include expanded and counted against the 10-lookup limit, DMARC policy, alignment and report permissions, DKIM keys at about 40 common selectors plus any you name (with key size), BIMI, MTA-STS and TLS-RPT, and the DNS rules Google, Yahoo and Microsoft set for bulk senders. Every finding has a severity, a one-sentence fix and the RFC or provider document behind it. Reads public DNS only. |
check_security_headersread-only | Read the HTTP security headers a domain's homepage sends, as a browser receives them, and grade each: Strict-Transport-Security, Content-Security-Policy, clickjacking protection (X-Frame-Options or CSP frame-ancestors), X-Content-Type-Options, Referrer-Policy and Permissions-Policy, plus whether http:// redirects to https://, cookie flags, and software version disclosure. Only public web servers on ports 80 and 443 are contacted. |
check_sslread-only | Check the HTTPS certificate and TLS setup of a domain on port 443: issuer, expiry date and days left, whether the chain is complete and trusted, whether the certificate matches the name, key type and size, which TLS versions (1.0 to 1.3) the server accepts, and the CAA record that limits who may issue certificates. Checks www as well when given a bare domain. Every finding has a severity, a fix and a citation. |
full_domain_reportread-only | Run every Domain Health check on one domain at once (email authentication, SSL and TLS, security headers, registration and DNSSEC) and answer three questions in plain words: will its email land, is its website safe, and is the domain owned well. Returns a score and grade per area, the top fixes across all areas, and every finding with its severity, fix and citation. Takes 5 to 20 seconds. |
Schemas: list_tools.
And 6 more from this publisher.
{
"name": "com.modernmustardseed/domain-health",
"icons": [
{
"src": "https://mcp.modernmustardseed.com/apple-icon.png",
"mimeType": "image/png"
}
],
"title": "Domain Health",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"remotes": [
{
"url": "https://mcp.modernmustardseed.com/domain-health",
"type": "streamable-http"
}
],
"version": "1.0.0",
"websiteUrl": "https://mcp.modernmustardseed.com/docs/domain-health",
"description": "Domain checks: SPF, DKIM, DMARC, BIMI, MTA-STS, SSL/TLS and HTTP security headers."
}