Are your emails quietlylanding in spam?
One expired DNS record or blocklisted IP is all it takes — and nobody warns you. Get a clear verdict on your domain in 60 seconds.
Use your work email — that's the first domain we'll check (and your sign-in later).
Free · takes 60 seconds · no card, no call
These four decide where your email lands. None of them will tell you when it's spam.
Deliverability doesn't fail loudly. It decays.
No bounce message. No error. A DNS record expires, an IP lands on a blocklist — and your emails start disappearing into spam folders while your dashboard says "sent."
Emails reaching the inbox
one broken record, twelve weeks
A DNS record breakssilently
Rerouted to spam
You notice — weeks later
By the time open rates give it away, you've paid for weeks of emails nobody saw.
The campaigns still went out. The invoices still came. The list you spent years building just quietly stopped hearing from you.
Unless something is watching.
Inbox Decay re-checks your sending setup around the clock. The moment a record breaks or an IP gets listed, you get an email that says exactly what broke, when it broke, and how to fix it — before it costs you.
Check my domain→Inbox Decay · Break alertTue 09:14
Your DMARC record broke overnight. Gmail has started rejecting your newsletters. The fix is two DNS lines — copy them below.
Caught 11 minutes after it broke
No DNS knowledge required. Ever.
You don't need to know what a DKIM selector is. You need to know whether your emails arrive.
Enter your work email
We run your basic domain health check on the spot — SPF, DMARC, MX, DNS, blocklists. A verdict before you've finished reading this page.
Send one test email
That unlocks the full health check: from every tool you send with — your ESP, your CRM, your outreach tool — we uncover the route each email really takes and what the filters see.
We watch it from then on
Your setup gets re-checked on schedule, forever. The moment anything breaks, you get an email with the exact fix — not a mystery.
We check everything the filters check.
If it can be verified from the outside, we verify it. Our own sending domain passes every one of these — we monitor it with our own product.
We measure the layer that can be measured. No fake seed tests. No inbox-placement theater.
Find out where you stand.
60 seconds. If everything's healthy, we'll tell you that too — then keep watching for free.
Free · takes 60 seconds · no card, no call