Free DNS, SPF/DKIM/DMARC, TLS, WHOIS, IP/ASN, blocklist, ping, traceroute and port checks. No key.
Connect Remote server
claude mcp add --transport http httpfy https://httpfy.io/mcp
{
"mcpServers": {
"httpfy": {
"url": "https://httpfy.io/mcp"
}
}
}
{
"servers": {
"httpfy": {
"type": "http",
"url": "https://httpfy.io/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://httpfy.io/mcp
Tools 24 found in our last check
dns_lookupLook up DNS records of one type (A, AAAA, CNAME, MX, NS, SOA, TXT, SRV) for a domain using public resolvers.
dns_propagation_checkQuery a domain on about 40 public resolvers in different regions and report which ones return which answers, to see whether a DNS change has propagated.
dnssec_checkValidate the DNSSEC chain of trust for a domain from the root down (DS, DNSKEY, RRSIG) and report each zone as secure, insecure or broken.
mx_lookupList the mail exchanger (MX) records of a domain with their preferences.
spf_lookupFetch the SPF record of a domain from its authoritative name server and list its mechanisms (ip4, ip6, include, redirect, all).
spf_validateValidate the SPF record of a domain: syntax, single-record rule, DNS lookup count (limit 10), void lookups, includes and the all mechanism.
domain_whoisWHOIS registration data for a domain: registrar, dates, status and name servers (personal contact data is redacted by registries).
domain_expiryRegistration and expiry dates of a domain, with the time remaining before it expires.
ssl_certificate_checkConnect to a domain on port 443 and report the certificate chain: subject, issuer, validity dates, days remaining, SANs and chain details.
pingPing a public host from httpfy servers (4 ICMP echo requests) and report packet loss and round-trip times. Useful to test reachability from outside your own network.
tracerouteTraceroute to a public host from httpfy servers (up to 10 hops). Internal hops of httpfy's own network are masked.
ip_whoisWHOIS / registry data for a public IPv4 address: ASN, network range, owner organisation and registry.
ip_blacklist_checkCheck whether a public IPv4 address is listed on common DNS-based blocklists such as Spamhaus, Barracuda and SpamCop.
mac_vendor_lookupIdentify the manufacturer registered for a MAC address prefix (OUI) using the IEEE registry.
asn_lookupLook up the autonomous system (ASN) for a public IP address, or details for an ASN such as AS15169: name, country, announced prefixes and address counts.
bimi_checkCheck the BIMI record of a domain, whether DMARC meets BIMI requirements, and whether the SVG logo and certificate URLs are reachable and well formed.
caa_checkFind the CAA records that apply to a domain (climbing to parent domains per RFC 8659) and list which certificate authorities may issue certificates.
certificate_transparency_searchList certificates logged in Certificate Transparency for a domain (via crt.sh): issuer, validity window and names, with a summary by issuer.
dkim_checkCheck DKIM public keys for a domain. With a selector it checks that selector; without one it probes common selectors. Reports key type and RSA key length and flags weak or revoked keys.
dmarc_checkFind and explain the DMARC record of a domain (policy, pct, rua/ruf, alignment) and flag weaknesses such as p=none or missing external report authorization.
dns_reportFull DNS report for a domain: delegation from the root, every authoritative name server checked individually (reachability, recursion, TCP, consistency), SOA values, MX records and their reverse DNS, SPF, DMARC, DKIM and DNSSEC.
domain_health_reportGrade a domain A to F across 11 checks (name servers, SOA, DNSSEC, MX, SPF, DMARC, CAA, HTTPS certificate, HTTP to HTTPS redirect, HSTS, IPv6), with a reason and fix for each failed check.
mta_sts_checkCheck MTA-STS (TXT record and the HTTPS policy file, mode and MX patterns) and the TLS-RPT reporting record for a domain.
port_checkCheck whether one TCP port on a public host is open, closed or filtered when tested from httpfy servers on the internet.
Details
| Endpoint | https://httpfy.io/mcp (Streamable HTTP) |
| First published | 11 Nov 2026 |
| Last updated | 11 Nov 2026 |
| Registry name | io.httpfy/httpfy |
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