Scan, fix and verify DNS: SPF, DMARC, DKIM, propagation, DNS health, expiry. Validated fixes. Connect the official Dns Doctor MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “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 expi.”
“Use “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. Retur.”
“Use “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.”
“Use “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.”
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Dns Doctor holds up.
Operated by Dns Doctor (dnsdoctor.dev) at its documented MCP endpoint — not a third-party mirror or community re-host.
This server only exposes public data — no account and no credentials are involved when you connect.
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
If Dns Doctor adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Choose Dns Doctor in the gate directory. No sign-in needed.
Dns Doctor's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
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 expi
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. Retur
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
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
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
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. `upgr
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|quara
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 commo
+ 8 more tools once connected
https://dnsdoctor.dev/mcpYes — Dns Doctor operates its own remote MCP server at dnsdoctor.dev. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
Add gate's gateway URL to your AI client once, then pick Dns Doctor in the directory. No account or sign-in is needed. From then on, Dns Doctor's tools are available in every client you've connected to gate.
No. Dns Doctor runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Yes — you can get started with gate for free and connect Dns Doctor in minutes. No credit card required.
Every server below works through the same gateway URL — connect once, add tools anytime.
Set up Dns Doctor in: Claude · Claude Code · ChatGPT · Cursor · VS Code