Your SPF record broke on Tuesday.
You found out on Friday.
We check your domain's SPF, DMARC, MX, and BIMI records every day and email you the moment anything changes, weakens, or disappears — before your customers notice.
Free during beta · up to 3 domains · double opt-in · unsubscribe in one click
How it works
1. Add your domain
Domain + alert address. Double opt-in — no one can subscribe your inbox to noise. A baseline snapshot is taken on confirmation.
2. Daily checks
Every day at 06:15 UTC we resolve your SPF, DMARC, MX, and BIMI records over Cloudflare DNS and diff them against yesterday's snapshot.
3. Alert on change
Something changed? You get a before/after diff within the hour. Nothing changed? We stay silent. Zero-noise monitoring.
Made for the person who owns “why is our email in spam?”
- ✓ Agencies managing client domains
- ✓ Teams that just migrated DNS or registrars
- ✓ Anyone who passed Google/Yahoo's 2024 sender requirements and wants to stay passing
- ✓ Brands with BIMI logos that must not silently break
FAQ
What exactly gets monitored?
Four DNS record families that control your email deliverability: your SPF record (root TXT), DMARC policy (_dmarc TXT), MX records, and BIMI record (default._bimi TXT). Checks run once a day via Cloudflare DNS-over-HTTPS.
When do I get alerted?
Only when something changes: a record is modified, added, or — the dangerous one — removed. No daily 'all good' noise. The alert shows a before/after diff of exactly what changed.
Why does this matter?
A deleted or broken SPF/DMARC record doesn't announce itself — your mail silently starts landing in spam, and most teams find out days later from customers. DNS records get broken by registrar migrations, well-meaning teammates, and expired includes all the time.
Is it really free?
Free during beta, up to 3 domains per email address. When we add paid plans (more domains, DKIM selector tracking, weekly reports, Slack alerts), beta users keep a free tier.
Do you need access to my mail server or DNS account?
No. Monitoring is read-only public DNS resolution — the same lookups any mail server does. You give us nothing but a domain name and an alert address.
Set up your records first
Want a one-off check instead? Run the free DNS Email Diagnostics — SPF, DKIM, DMARC, MX, BIMI, and MTA-STS in one scan.