heade.rs
Look up any domain, IP address or AS number: hosting, DNS, registration, email, TLS and headers.
Connect it
Settings → Connectors → Add custom connector
URL: https://heade.rs/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://heade.rs/mcp{
"mcpServers": {
"lookup": {
"url": "https://heade.rs/mcp"
}
}
}claude mcp add --transport http lookup https://heade.rs/mcp{
"servers": {
"lookup": {
"type": "http",
"url": "https://heade.rs/mcp"
}
}
}1 tools, verified live
lookupread-onlyLook up a domain, IP address or network (AS number) on heade.rs and return its report. For a domain or IP address: where it's hosted (network, BGP prefix, RPKI, location, cloud region, CDN), registration (RDAP/WHOIS), DNS records and DNSSEC, email security (SPF, DMARC, MTA-STS, BIMI), the certificate, a security-header grade and the response headers, the website's tech stack with end-of-life and v
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