isitdns for ChatGPT
net.isitdns/isitdns
Is it DNS? Audit a site or domain that isn't working: one call says if it resolves and why. No key.
client:ChatGPT
transport:streamable-http
tools:6
Install isitdns in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://isitdns.net/mcp
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs