Email Deliverability Score
Enter your domain to get a unified 0–100 deliverability score combining SPF, DKIM, DMARC, blacklist status, MX config, and reputation signals — with a letter grade and prioritized fix list.
Real DNS checks: We query live DNS records for your domain — SPF, DKIM (6 common selectors), DMARC, MX, MTA-STS, BIMI, and A records — then calculate a 0-100 deliverability score with actionable fixes.
coldBirds runs this exact check every 6 hours on every mailbox — and auto-suspends mailboxes that drop below safe thresholds before they damage your sender reputation.
Get 6-Hour Auto-Monitoring →You Might Also Need
Domain Health
Get an instant health score for any email domain — SPF, DKIM, DMARC, MX records, and blacklist status.
Blacklist Checker
Check your domain or IP against 100+ email blacklists with delisting instructions.
Reputation Lookup
Check your domain and IP reputation across Google Postmaster, Microsoft SNDS, SenderScore, and more.