Valla DNS

Valla DNS is a free, no-signup, all-in-one domain and network intelligence toolkit for developers, sysadmins, and IT professionals. It brings the checks you normally spread across a dozen sites into one fast, dark-mode-friendly interface, with no login and no paywall.

Core tools:

• DNS lookup for every record type (A, AAAA, CNAME, MX, NS, TXT, SOA, CAA, SRV and more).
• Global DNS propagation across 20+ worldwide resolvers, with an at-a-glance in-sync map so you can see exactly where a change has landed.
• WHOIS and RDAP lookups for registrar, ownership, and expiry data.
• SSL/TLS certificate checks with a clear health grade, chain trust, and an expiry countdown.
• Email health suite: SPF, DKIM, DMARC, MX and SMTP, plus blacklist and URIBL checks for deliverability.
• Network utilities: ping/reachability, traceroute, MTR, NTP, reverse DNS, nameserver trace, HTTP header inspection, what's-my-IP, and IP info.

Everything runs instantly in the browser, works well on mobile, and never asks you to sign up.