Network
DNS lookups, WHOIS, subnet calculator, and network diagnostics
27 tools available
Parse IPv4 or IPv6 addresses and show type, hex, binary, and decimal.
newBreak a URL into its components: protocol, host, path, query params, and hash.
newMake URLs and IPs safe to share in reports by defanging them.
newConvert MAC addresses between colon, hyphen, dot, and plain formats.
newExtract all IPv4 and IPv6 addresses from a block of text.
newExtract all URLs from a block of text.
newExtract all email addresses from a block of text.
newQuery any DNS record type for a domain using DNS-over-HTTPS.
newLook up domain registration and ownership details via RDAP.
newCalculate network and host ranges from a CIDR or IP + mask.
newCheck if an IP address appears on 15 common DNS blacklists.
newInspect HTTP response headers and audit security headers.
newDetect your public IPv4 and IPv6 addresses.
newCheck DNS propagation across Google, Cloudflare, and Quad9.
newCheck whether an IP address falls inside a given subnet (CIDR).
newLook up ASN, organization, and geolocation for an IP address.
newComprehensive domain report: WHOIS, DNS records, and IP geolocation in one view.
newCheck if a domain name is available for registration.
newValidate an email address: syntax, MX records, SPF, and DMARC.
newSee what your browser reveals: IP, user agent, screen, timezone, and more.
newCheck if a host is reachable and measure round-trip latency.
newTrace the network path from this server to any host.
newLook up and parse the SPF record for a domain.
newLook up a DKIM public key record for a domain and selector.
newLook up and parse the DMARC policy for a domain.
newCheck if a TCP port is open on a host.
newConnect to any host and port and see the service banner — like telnet.
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