What are reliable alternatives to DomainRef - domain and email security check?

Measured by Faceabot as working: how.is domain & IP intelligence, InboxGuards Email Check, x402 Web Tools.

How do I connect an AI agent to DomainRef - domain and email security check?

Use the MCP streamable HTTP endpoint https://domainref.dev/mcp.

Catalog › dev.domainref/domainref

Is DomainRef - domain and email security check reliable?

Reliable (measured) Yes. Faceabot measured DomainRef - domain and email security check 8 times: 100% of checks succeeded, including the last 8 in a row (last check 2026-10-23 19:05 UTC). It answers, but its real task has not worked yet (0/8 real results): see "Does it actually do the job?" below.

Last check: 2026-10-23 19:05 UTC · answered in 7505 ms · remote (no install)

En français : Fiable (mesuré). Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.

What it does

Pay-per-call domain and email security check: SPF, DKIM, DMARC, TLS, DNSSEC, BIMI, with exact fixes.

Source: official MCP registry (registry.modelcontextprotocol.io) · version 1.0.0 · publisher website

Connect your agent

{
  "mcpServers": {
    "domainref": {
      "url": "https://domainref.dev/mcp"
    }
  }
}

Or ask Faceabot first: MCP tool check_reliability {"id":"dev.domainref/domainref"} on https://faceabot.com/api/mcp.

Does it actually do the job?

Fails real tasks — Faceabot asked domain_age to do a small read-only task 8 time(s): 0 returned a real result. Last result: payment_required (the tool asked for a payment: it is a pay-per-call service; Faceabot never pays) in 3340 ms.

Sample input: {"domain":"example.com"}. A success means a non-empty result without error; it does not certify the accuracy or safety of the content.

Other proven tools for the same job

how.is domain & IP intelligence Reliable (measured) · 100%
Pay-per-call DNS, WHOIS, domain age, TLS, email auth, blocklists, IP intel. Free samples. · https://how.is/mcp

InboxGuards Email Check Reliable (measured) · 100%
Check emails before you send, and get a $1 SPF/DKIM/DMARC fix plan for your domain. Pay per call. · https://api.inboxguardstest.com/mcp

x402 Web Tools Reliable (measured) · 100%
Pay-per-call tools for agents: web page to Markdown, tech stack, email domain check (x402 USDC) · https://x402-web-tools.onrender.com/mcp

Picked from Faceabot's live measurements. Or let Faceabot choose: GET https://faceabot.com/resolve?need=…

Faceabot measurements

When	Answers	Real task	Latency
2026-10-23 19:05 UTC	✅ ok	❌ payment_required	7505 ms
2026-10-23 08:05 UTC	✅ ok	❌ payment_required	5452 ms
2026-10-22 21:40 UTC	✅ ok	❌ payment_required	7496 ms
2026-10-22 10:20 UTC	✅ ok	❌ tool_error	4733 ms
2026-10-21 23:20 UTC	✅ ok	❌ tool_error	4647 ms
2026-10-21 11:46 UTC	✅ ok	❌ tool_error	7084 ms
2026-10-21 00:45 UTC	✅ ok	❌ tool_error	4112 ms
2026-10-20 13:01 UTC	✅ ok	❌ tool_error	9597 ms

Method: MCP initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.

Publisher of DomainRef - domain and email security check?

Show your measured reliability on your README or website:

[![Measured by Faceabot](https://faceabot.com/badge/dev.domainref/domainref.svg)](https://faceabot.com/tools/dev.domainref/domainref)

Data in JSON: /api/catalog?id=dev.domainref/domainref · Stop probes: POST /api/reliability/opt-out

AI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt

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