Analyze A, MX, TXT, and NS records for any domain.
The Domain Name System (DNS) is the phonebook of the internet. Humans access information online through domain names, like google.com or ipscanner.in. Web browsers interact through Internet Protocol (IP) addresses. DNS translates domain names to IP addresses so browsers can load internet resources.
Every time you send an email or browse a website, your computer uses DNS. A misconfigured DNS record can lead to website downtime, lost emails, or serious security vulnerabilities like domain hijacking.
There are dozens of record types, but the most critical are:
Our DNS scanner bypasses local caches to query root and authoritative nameservers directly. This gives you the ground-truth state of your domain globally.
Built for developers and SOC analysts, our tools rely on secure, DNS-over-HTTPS (DoH) queries with zero tracking.
We frequently see domains fail our checks due to these preventable mistakes:
When you change hosts, it can take 24-48 hours for the new DNS records to propagate globally. Until then, some users will see the old server.
If you point a CNAME to a third-party service (like Shopify or Heroku) and later cancel your account without removing the record, attackers can register that sub-account and hijack your subdomain.
Missing or malformed MX and TXT records are the #1 reason legitimate business emails land in spam folders.
Having NS records at your registrar that do not match the NS records in your DNS zone can cause sporadic, impossible-to-debug downtime.
Generally, modern DNS changes propagate within 1 to 4 hours, but strict global caches can hold onto old records for up to 48 hours depending on your Time To Live (TTL) settings.
Log into your domain registrar (e.g. GoDaddy, Namecheap, Cloudflare) and add the exact MX values provided by your email host (like Google Workspace or Microsoft 365).
Yes! All basic DNS lookups, TXT extractions, and MX verifications are permanently free.