◉ DNS Toolsinternal network toolkit

DNS

DNS Lookup Bulk Lookup DNS Traversal DNSSEC Email Auth WHOIS

Network

Ping Traceroute MTR PTR Sweep Blacklist Check HTTP Headers Port Scan

SSL / PKI

SSL Checker Bulk SSL Checker SSL & CSR Decoder CSR Generator SSL Converter RSA Key Converter Key Matcher CA Matcher CT Log Search OCSP Checker OpenSSL Trace Alt DCV Checker

Alt DCV Checker

Check DNS TXT / HTTP file domain-control-validation tokens.

Domain

Expected token/value (optional — leave blank to just view what's published)

HTTP DCV filename (optional)

Checks the two common alt-DCV methods: DNS TXT record at _dnsauth / apex, and an HTTP file under /.well-known/pki-validation/.

Single-host DNS toolkit · runs from this server's vantage point · PHP 7.4.33