Invoker

Showing 25 of 41 from the live probe.

• Ip

  Your public IP (IPv4/IPv6) as seen by the server, plus the request headers behind it.

• Dns

  Resolve A, AAAA, MX, TXT, NS, CNAME or SOA records for a domain via public resolvers.

• Mx

  List a domain's mail servers by priority and resolve each to its A/AAAA addresses.

• Spf

  Look up and parse a domain's SPF record; count DNS lookups and flag the all qualifier.

• Dmarc

  Resolve and parse the _dmarc policy, with warnings for p=none, missing rua and pct<100.

• Dkim

  Fetch a DKIM public key by selector and flag revoked (empty p=) or test-mode keys.

• Rdns

  Reverse DNS (PTR) + forward-confirmed reverse DNS (FCrDNS) for an IP address.

• Ssl

  Inspect a host's live TLS certificate: expiry, issuer, SANs, chain and trust. SSRF-guarded.

• Whois

  WHOIS/RDAP registration data for a domain or IP: registrar, status, key dates and nameservers.

• Dnsbl

  Check an IPv4 address (or a domain's A record) against ~10 well-known DNS blacklists.

• Http

  Fetch a URL and report HTTP status, response headers, the redirect chain and timing. SSRF-guarded.

• Up

  Check whether a website is up: HTTP status, response time and final URL after redirects.

• Propagation

  Query several public DNS resolvers and compare their answers to check DNS propagation.

• Port

  Check whether a TCP port is open on a host: open / closed / filtered verdict, resolved IP and connect timing. SSRF-guarded.

• Mailcheck

  Composite mail-deliverability check for a domain: MX, SPF, DMARC, DKIM, the MX host's PTR/FCrDNS and blacklist status, scored.

• Uuid

  Generate one or many RFC 4122 version 4 (random) UUIDs.

• Ids

  Generate time-sortable ULID or UUIDv7 identifiers.

• Password

  Generate a cryptographically strong random password with chosen character sets.

• Passphrase

  Generate a memorable diceware-style passphrase with an entropy estimate.

• Hash

  Compute a SHA-1/256/384/512 digest of text.

• Base64

  Encode or decode Base64 (UTF-8 safe).

• Jwt

  Decode a JWT header + payload and read exp/iat/nbf. Signature is NOT verified.

• Json

  Format (pretty-print), minify and validate JSON.

• Case

  Convert text case (upper/lower/title/sentence/camel/pascal/snake/kebab/constant) with counts.

• Numbers

  Convert an integer between binary, octal, decimal, hex and any base 2-36 (BigInt).