# isitdns (isitdns.net)

Queries a domain across public DNS resolvers and reports each one's answer state and latency, with a CLI.

- Atlas card: https://inite.ai/en/atlas/isitdns.net
- Site: https://isitdns.net
- For: Engineers and DNS operators checking domains and public resolvers, especially during root key rollovers.
- Categories: analytics
- Use 0/100 · alive 100/100

## Used for

- verify which public resolvers accept the new root key
- compare response latency across public DNS resolvers
- query DNS verdicts from a terminal using dig or curl

## Price

Not read yet.

## For developers

- API docs: https://isitdns.net/api/domains
- MCP server: net.isitdns/isitdns (namespace; open on 2026-10-20, 6 tools)
- Read 2026-10-20

## MCP server, measured daily

Server: https://isitdns.net/mcp, checked every day since 2026-10-20 (2 checks).

- Answered: measuring, 2 daily checks so far
- Median first answer: 272 ms
- Sign-in: none
- Context its tool definitions take: about 1548 tokens (6 tools)
- Tool definitions: A, 100/100
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-20

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Source: INITE Atlas, https://inite.ai/en/atlas/isitdns.net. JSON: https://inite.ai/api/atlas/isitdns.net. MCP: https://inite.ai/api/mcp (atlas_lookup).