Free SPF record checker
Check your SPF record and see what to fix. Also checks DKIM, DMARC, MX and blacklists.
SPF, DKIM, DMARC
The three records Gmail and Outlook use to decide if your mail is really from you.
Blacklist lookup
Checks your domain against public domain blocklists such as Spamhaus DBL and SURBL.
Plain-English fixes
Every problem comes with what to change, so you can fix it without a deliverability consultant.
Questions
Is the domain checker really free?
Yes. No signup and no card. It reads public DNS records for your domain and shows what to fix.
Does it test inbox placement?
No. It checks your setup: SPF, DKIM, DMARC, MX and domain blocklists. It can't tell you which folder an email lands in.
Are monitoring and alerts live?
Daily monitoring is live: paying members add their domains to a dashboard, we re-check them every day and flag regressions there. The dashboard above is an example preview. Early-bird pricing is locked in for as long as you stay subscribed.
Why can't it find my DKIM key?
DKIM keys live under a selector name that only you know. We try common selectors, so a custom one can be missed.
Can I cancel any time?
Yes. Cancel and you won't be billed again.
Want ongoing monitoring?
Daily monitoring is live. Lock in early-bird pricing while it lasts.
See early-bird pricing