Look up live A, AAAA, CNAME, MX, TXT, and NS records via DNS-over-HTTPS. Queries go to Google DNS — results display here. Uses cloud-based processing.
Content reviewed October 2026 · About Toolzum
Discover subdomains via public certificate records plus live DNS checks of common names. Read-only lookups run from your browser — the domain you check is visible to crt.sh and Google DNS, as with any lookup.
Look up IP geolocation context — city, region, country, hostname, and ASN/org via ipinfo.io. No blocklist verdicts: abuse and blacklist checks are honest link-outs to AbuseIPDB and VirusTotal. Queried IPs leave the browser by design — live lookup, free, no signup.
Check a host over HTTPS from your browser — SSL/TLS reachability (which proves the browser validated the certificate chain) plus public issuance history (issuer, expiry, cert count) via crt.sh. No cipher-suite or protocol-version scan: browsers do not expose handshakes.
Looks up bank details from an 11-character IFSC code — bank name, branch, address, city, district, and contact info. Live lookup via the Razorpay IFSC API.
Preview your text in 6 Google fonts — Inter, Playfair Display, Fira Code, Pacifico, Outfit, and Montserrat — and copy the ready-to-use CSS import plus font-family rule. Free, local, no signup.
A, AAAA, MX, TXT, CNAME, and NS — the working set for debugging and setup.
Lookups read live DNS; propagation delay is a caching phenomenon, not a lookup failure.
They are not — queries run from your browser via DNS-over-HTTPS to Google DNS, with no account needed.
No account needed — lookups run without sign-in and leave no saved history behind.
DNS Record Validator
Validate DNS records — A, MX, TXT, SPF, DKIM, DMARC syntax and coherence. Catch the missing SPF that tanks deliverability — local checks, free, no signup.
Subdomain Finder
Discover subdomains via public certificate records plus live DNS checks of common names. Read-only lookups run from your browser — the domain you check is visible to crt.sh and Google DNS, as with any lookup.