MCP Uptime
← MCP Reliability Index  /  Dev & Git
D

Dns Doctor

dev.dnsdoctor/dns-doctor
Scan and fix email auth (SPF, DMARC, DKIM, MX, blacklists, expiry) + DNS checks. Validated fixes.
healthy
status
15
tools exposed
2410ms
connect latency
6403b1eff9f2
schema fingerprint

Tools (15)

scan_domain
Force a fresh scan of a domain and return its full report: seven deterministic checks — SPF, DKIM, DMARC, MX, DNS hardening, domain/TLS expiry and blacklist listing — each with a status (pass/warn/fail/info/temperror), the observed record, and a fixengine-generated fix_record where one exists. Expla
get_report
Return the stored report for a domain, scanning once only if none exists yet — the cheap read, and the right default for a first look. Returns the same seven-check report as scan_domain (SPF, DKIM, DMARC, MX, DNS hardening, domain/TLS expiry, blacklist; each with a status, the observed record and an
build_dmarc_upgrade
Return a validated DMARC enforcement-upgrade record for a domain. The alignment gate (whether p=reject is safe) is derived server-side from a scan — a caller can never assert alignment. `record` is null when there is no honest upgrade to offer (the domain does not exist; the DMARC lookup itself hit
start_monitoring_signup
Return a sign-up link to give to the HUMAN who owns a domain, so they can start monitoring it themselves. Nothing is created and no email is sent by this call: the returned signup_url opens a page that explains monitoring and asks them to sign in with their own email address; the domain is carried o
count_spf_lookups
Validate an SPF record and count what it costs. Returns `record_valid` (the record parses as RFC 7208 SPF), `findings` (per-term diagnostics), `has_pass_all` (a `+all` that authorizes the whole internet to send as this domain), `multiple_all` (more than one `all`, which makes everything after the fi
validate_dmarc_record
Validate a pasted DMARC record: parsed tags, level'd findings, and whether it is valid. No DNS lookup — pass the record string itself. `upgrade_record` previews a stronger policy and is capped at p=quarantine: a pasted record carries no alignment evidence, so p=reject needs a full scan (use build_dm
generate_dmarc_record
Build a DMARC record from scratch for a domain that has none, using a validating engine — never compose one yourself. `policy` is none|quarantine|reject; optional `rua_email` (aggregate-report destination), `subdomain_policy`, and `strict_alignment`. Every generated record carries np=reject — the DM
check_dkim_selector
Check ONE specific DKIM selector on a domain — the exact selector the sending platform uses (e.g. `google`, `s1`), which a full scan's common-selector sweep may miss. Returns the verdict, its explanation, and the published key record when one resolves. No fix record is returned: a DKIM key is genera
parse_dmarc_report
Parse ONE DMARC aggregate (RUA) report into readable per-source aggregates: who sent mail as the domain, how much, and what share was SPF/DKIM aligned. Pass the file's bytes base64-encoded in `content_base64` (XML, .gz or .zip; up to 2 MiB decoded) with an optional `filename`. Nothing is stored — th
check_record
Check whether a DNS change has landed: reads the record from the domain's OWN nameservers (cache-free) and from two public caching resolvers, and reports whether they agree. `kind` is one of spf|dmarc|txt|mx|cname|a|aaaa — pass the kind, not a query name: `dmarc` reads TXT at _dmarc.<domain> and `sp
check_reverse_dns
Check one sending IP's forward-confirmed reverse DNS (FCrDNS): reads the IP's PTR record, then resolves that hostname back and reports whether it returns to the same IP. `verdict` is confirmed (the pair agrees — what receivers want to see), ptr_missing (the IP publishes no reverse record), or mismat
audit_spf_includes
Audit a domain's SPF supply chain: walks every include and redirect it delegates to, and reports who can transitively send as it. Returns the resolved tree, per-node lookup attribution, the total authorized IPv4 address count, and typed findings — include_broken (a target that no longer publishes SP
build_parked_domain_records
Build the three-record hardening pack that makes a NON-SENDING domain unusable for spoofing: a Null MX, a hard-fail SPF record, and a p=reject; np=reject DMARC record. For parked, redirect and brand-defensive domains only — NEVER for a domain that sends any mail, including transactional or one legac
get_alerts
Read the monitoring alert log for the domains the caller's account monitors, newest first. Requires an API token. Each row carries id, domain, type, check, summary, a deterministic detail map, created_at, email_sent_at, acknowledged_at and delivery_class — a 'dashboard_only' row was deliberately kep
get_readiness
Read the DMARC enforcement-readiness verdict for ONE domain the caller's account monitors, computed from its aggregate (RUA) report window. Requires an API token. Returns whether the domain is ready to step its policy up, the blockers that say why it is not, the window the verdict rests on, and next

Endpoint

https://dnsdoctor.dev/mcp
Category: Dev & Git · Last checked: 2026-08-15T09:21:29Z

Monitor your own MCP server

Get alerted the moment yours goes down, a tool schema drifts, or an upstream silently breaks.

Get early access
How we measure →
What this means. This server responded to the MCP handshake and listed its tools without authentication. The schema fingerprint lets us flag if tool signatures silently change (schema drift) between checks.