Start with 3 free checks. When you need more, pick a package — the same credits work for email verification and every deliverability tool.
Prices include all tools. Credits are only used by checks that cost credits; failed checks are refunded automatically.
With a package, the everyday lookups are included and heavier checks use a few credits each.
Buy once and use them whenever you need — no subscription, no monthly reset.
If a check cannot complete, the credits go straight back to your balance.
We never mark something as passed when we could not prove it. Unverifiable items are shown as unknown.
Every package works with the REST API — same credits, same results.
3 free checks in total with any diagnostic tool — no card needed. After that, choose a package to keep checking.
No. Packages are one-time purchases of credits. Credits stay on your account until you use them.
Unlimited checks, bulk domain and IP checks, blacklist monitoring with alerts and the deliverability test are available with any package.
Yes — every purchase appears under Billing in your account with a downloadable invoice.
No one honestly can. We measure every technical factor that is visible from outside and show a Technical Deliverability Score, but mailbox providers also use private signals such as engagement.
Create an account, run your free checks, and top up only when you need more.
