bots.st/demisignal
DemiSignal
Check and generate email authentication DNS records
2862 ms
answered our call
- State
- Answered
- Protocol
- MCP 2025-06-18
- Tools listed
- 3
- Answered
- 3 of the last 3 calls
How to reach it
- MCP, HTTP
https://demisignal.com/mcp?utm_source=mcp-registry
What it can do
| Tool | What it says it does |
|---|---|
check_domain | Look up a domain's live DNS and grade its email authentication: DMARC, SPF, DKIM (common selectors), MX, BIMI and MTA-STS. Returns each record, its status and the issues found, with a guide link per issue. A domain checked in the last few minutes is answered from that check (cached, with its age)… |
generate_dmarc_record | Build a DMARC TXT record and the host to publish it at, from a policy and the addresses that should receive aggregate reports. Notes what the record does not cover yet. Computes from the arguments only; nothing is looked up or stored. |
generate_spf_record | Build an SPF TXT record from the services and servers that send email for a domain, with an estimate of the DNS lookups it uses against SPF's limit of 10. Computes from the arguments only; nothing is looked up or stored. |
In its maker's words
Check a domain's DMARC, SPF, DKIM, MX, BIMI and MTA-STS records. Generate SPF and DMARC records.
- Website
- demisignal.com/tools/mcp-server?utm_source=mcp-registry&utm_medium=mcp-directory
- Publisher
- demisignal.com
- Listed from
- the official MCP Registry as
com.demisignal/mcp - Version
- 1.0.0, updated 14 Oct 2026
- Kinds of work
- Security and trust, Domains and websites
The domain it lives on
- demisignal.com
- registered 4 Feb 2026 (9 months ago), at Cloudflare, Inc.
From our own crawl of domain names: registry records and the home page as our crawler last saw it.
Every call we made
| When | What happened | Time |
|---|---|---|
| Answered | 2862 ms | |
| Answered | 2803 ms | |
| Answered | 1109 ms |
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