Check your DNS records before they go live.
Paste records or a zone file. Tell us which email provider and website host you use, and you'll get a clear report on what's broken, what's risky, and the exact records you need. Free checks run entirely in your browser.
Zone files, CSV/JSON exports (Cloudflare, Route 53…) and rows copied from your DNS panel all work. You can also drop a .txt / .zone / .csv file here.
or click to browse, or paste with ⌘V / Ctrl+V
Pro: AI reads the records from up to 4 screenshots (1 credit per check). Make sure long TXT values aren't cut off with "…".
Moving DNS hosts? Check nothing gets lost.
Paste (or screenshot) the records from your old DNS host and your new one. You'll see every record that's missing or changed, DNSSEC and proxy gotchas, and a full check of the new zone, before you switch nameservers.
Get an email when your DNS changes or breaks.
We check each domain's live DNS every day against the full rule set and your provider setup. If a record changes or a new problem appears, you get an email.
Your monitored domains
Free for everyday checks. Pro when you need more.
The full rule engine is free forever and runs in your browser. Pro adds the things that save professionals real time.
Payments are handled by Stripe. Cancel any time from the billing portal. Credits never expire.
Sign in with email
We'll email you a one-time sign-in link. Use the address you paid with.
Use a licence key
You got a key after checkout. It starts with zi_.
PDF report branding
Shown on branded PDF reports. Saved in this browser only.