🌐 Toolkit

Domain & DNS Tools

Look up DNS records, WHOIS, SSL certificates and check propagation

6 tools in this collection

About This Toolkit

Look up DNS records, WHOIS, SSL certificates and check propagation. This collection groups the Multi-Toolkit tools that work well together for this task — all free, all running entirely in your browser with nothing uploaded to a server.

Tools in This Collection (6)

DNS Lookup & Checker

Query records, compare resolvers, check DNSSEC

DNS Propagation Checker

Watch a DNS change propagate across resolvers

WHOIS Lookup

Registrar, expiry & name servers via RDAP

SSL Certificate Checker

Issuer, expiry & covered domains (SANs)

MX Record Lookup

Check a domain's mail servers

Website Link Checker

Find broken links, SEO issues & redirects