Domain Health
mcp remote · streamable-http · v1.0.0 · source: crawl
https://mcp.modernmustardseed.com/domain-health
Domain checks: SPF, DKIM, DMARC, BIMI, MTA-STS, SSL/TLS and HTTP security headers.
Works
100
Verified Oct 31, 2026 · p50 215 ms · p95 248 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'Domain Health by Modern Mustard Seed' |
| tools_listed | 15 | pass | 5 tools |
| schema_complete | 15 | pass | 5 of 5 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 215 ms |
| latency_p95 | 5 | pass | p95 248 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (5)
| Name | Description | Schema |
|---|---|---|
check_email_auth | 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 polic | typed |
check_ssl | 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 | typed |
check_security_headers | 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 CS | typed |
check_domain_registration | 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 sta | typed |
full_domain_report | 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 it | typed |
Badge
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[](https://app.agent-xm.com/a/com-modernmustardseed-domain-health)
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