AOD Pulse

Free tools

Quick diagnostics with no account. More tools are coming.

DNS Lookup: A, AAAA, CNAME, MX, NS, TXT, SOA and CAA records from public resolvers.
DNS Propagation Check: Compare answers and TTLs from Cloudflare, Google and AdGuard.
Email Setup Check: MX, SPF, DMARC, MTA-STS and common DKIM selectors, with plain-language findings.
Domain Lookup (WHOIS and RDAP): Registrar, dates, status and name servers from the registry.
IP Address Lookup: Network owner, range, country and reverse DNS from the regional registry.
HTTP Security Headers Check: Graded report of a site's security headers, fetched from an AOD Pulse monitoring location.
Redirect Checker: Follow the redirects from a site's home page, hop by hop, from an AOD Pulse monitoring location.
Response Time Check: One request to a site's home page, split into name lookup, connect, secure connection and wait.
SSL Checker: Certificate chain, expiry, names, protocol and cipher from a single TLS handshake.
Email Header Analyzer: Delivery path, delays and SPF, DKIM and DMARC results. Runs in your browser.