8 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Punycode converter: convert internationalised domain names between Unicode and ASCII punycode in either direction, label by label, and validate each label against IDNA2008: length, leading and trailing hyphens, the hyphe...
Nameserver health of a domain: count, provider diversity, whether each nameserver resolves, and the SOA serial.
Resolve a relative link against a base URL per RFC 3986 section 5, handling ../, ./, //host, ?query and #frag.
Site snapshot (SEO + security + tech + email): All four quick checks in one call for a website: on-page SEO score and issues, security headers/TLS grade, tech stack, and the domain's SPF/DKIM/DMARC email authentication....
Phishing lookalike domain check for one host name: punycode, mixed-alphabet homographs, typo lookalikes of often-phished brands, a brand name off its official domain, risky TLDs and login/wallet words. Returns signals wi...
Check the TLS certificate a domain serves on port 443: whether it chains to a trusted root, matches the name (RFC 9525) and when it expires, with issuer, chain, key and signature algorithm, TLS version and coded findings...
URL trust check before you click or pay (safe / caution / risky): Pre-click / pre-pay check of one URL: TLS validity and expiry, redirect chain (HTTPS downgrades, cross-domain hops), domain age via RDAP, brand lookalike...
IDN / punycode converter and homograph check: converts between Unicode and ASCII (xn--) domain forms, lists the scripts used, flags mixed-script labels and confusable characters (Cyrillic а vs Latin a) that indicate homo...