Are your DNS records pointing the right way - before your site or email stops resolving.
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Where does this domain point right now?
Mail routing and SPF records at a glance
Which DNS hosts control this domain?
No account required · Free · Results in under 1s
Domain name records in plain terms
When DNS records are wrong or still propagating, visitors hit the wrong server and email bounces - often before anyone notices in the hosting panel.
A DNS lookup tool queries public resolvers for A, AAAA, MX, TXT, CNAME, and NS records. A free DNS lookup shows what the internet sees right now, not what you intended to save.
Run a one-time DNS check after migrations, hosting changes, or email setup. Add domains to TotalSiteControl monitoring for alerts when critical records change.
Start free monitoring with email alerts. No credit card required.
Check public DNS records for any domain in under a minute - no account needed.
Type the domain you want to inspect, for example yourdomain.com. Use the apex name or a subdomain if that is what you need to verify.
Click Look up DNS. We query public resolvers and return common record types such as A, AAAA, MX, TXT, CNAME, and NS when present.
Confirm hosts, mail servers, and TXT values match what you expect after a migration or DNS change. Then fix mismatches or turn on monitoring for change alerts.
What breaks sites and email - and how to fix it.
Visitors hit the old host or get NXDOMAIN while the new site is already live elsewhere.
Update A/AAAA or CNAME to the current hosting endpoint, lower TTL before the cutover, then re-check until resolvers show the new values.
Mail bounces or lands in the wrong provider after you switch email hosting.
Copy the MX hostnames and priorities from your provider docs, publish them, wait for TTL, then verify with a fresh DNS lookup.
SPF, DKIM, or domain verification fails because an old TXT value is still published, or the new one never landed.
Publish the provider’s exact TXT value at the required name, remove obsolete entries that conflict, then re-check TXT for that hostname.
Certificate, DNS, and reachability history in one place.
Checks run from our servers - the same path users hit.
Turn a one-off check into monitoring in under a minute.
External probes so internal network blind spots do not hide issues.
Email and Telegram when something fails or is about to expire.
Start free - no credit card required to begin monitoring.
Start free monitoring with email alerts. No credit card required.
Quick habits that catch record mistakes early.
Apex and www often use different record types. Look up both if both serve traffic.
A short TTL before cutover makes rollbacks and updates propagate faster.
Registrar UIs and DNS hosts can save incompletely. Confirm live records after you click save.
Mail delivery depends on MX plus authentication TXT records. Verify both when you change providers.
It queries public DNS for A, AAAA, MX, TXT, CNAME, and NS records for any domain and shows what resolvers return right now.
Yes. Enter any public domain and get instant results - no signup, no credit card, and no limit on one-off lookups.
Propagation can take minutes to 48 hours, and wrong A or CNAME records also block access. Run a lookup to confirm what public resolvers see for your domain now.
An A record points a hostname to an IPv4 address. A CNAME aliases one name to another. Root domains and mail often need A records rather than CNAME.
Usually minutes to a few hours, though rare cases take up to 48 hours. TTL on old records affects how quickly caches refresh worldwide.
Yes - enter any hostname such as www.yourdomain.com or mail.yourdomain.com. We query records for that exact name.
Some domains route mail through external providers with MX only on the root, or mail DNS is not configured yet. Check SPF on the same domain with our SPF Checker.
After migrations, hosting changes, or email setup. For production domains, use monitoring for alerts when critical records change.