Networking
Your public IPv4/IPv6, reverse DNS, Cloudflare WARP/edge signals, browser hints, free geo, and WebRTC candidates.
Open IP CheckerA, AAAA, CNAME, MX, NS, TXT, and SOA for a hostname, plus a light SPF/DMARC skim from public TXT.
Open DNS LookupLeaf certificate identity, SANs, expiry countdown, protocol/cipher, and chain trust on port 443.
Open TLS CertificateCapped redirect ledger, security-header scorecard, and CDN/cache signals — raw headers optional.
Open Headers & RedirectsResolve a hostname or inspect a public IP: dual-stack addresses, PTR, ASN/org, and approximate location.
Open Host IP & ASNEach utility stays focused: sparse panels, expandable detail only when you ask, and server-side guards so host lookups stay public-internet safe. More tools can land here without turning the page into a wall of tiles.