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DNS lookup Every record type, with its TTL and the DNSSEC validation state. Propagation The same question asked of five public resolvers and of your authoritative servers. Delegation map The walk down from the root, server by server: delegations, serials and inconsistencies. Reverse lookup From an IP address to its name, and a check that the round trip agrees. WHOIS Owner, contacts, registrar, dates and locks — the domain WHOIS, read over RDAP. Punycode / IDN Conversion both ways, with detection of look-alike characters. Mail server MX, reverse DNS, FCrDNS, open ports, SMTP banner and the certificate served. SPAM blacklists An IP address or a domain checked against the main blacklists, MX included. SPF Analysis and generation, with the real count of DNS lookups triggered. DKIM Public key readout, length, algorithm and detection of revoked keys. DMARC Policy readout, guided generation and validation of report recipients. MTA-STS Policy, TXT record and a check that the policy is actually being served. Email headers Path taken, delays, authentication results. Analysed in your browser. DNSSEC DS to DNSKEY chain, algorithms in use and confirmation that validation holds. CAA Which authorities may issue a certificate for this domain, and generation. SEO and AI visibility Tags, robots.txt, sitemap, security headers and the policy towards AI crawlers.

ip.oxmo.org Your public IP address, its location on a map, ping, traceroute, port and speed tests. tools.oxmo.org Portal of self-hosted tools: JSON, encoding, hashes, text comparison.

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WHOIS

Owner, contacts, registrar, dates and locks — the domain WHOIS, read over RDAP.

Domain

Read from the registry's RDAP. Registrant contact details are redacted for nearly all European domains, under the GDPR.

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No diagnostic data kept beyond a five-minute cache.

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