Domain Health Checker: SPF, DKIM, DMARC, SSL & Security Headers

Bulk-check any list of domains for email deliverability (SPF, DKIM, DMARC, MTA-STS), SSL certificate expiry, DNSSEC and website security headers. Get a 0-100 score, an A-F grade, the mail and DNS provider, and plain-English fixes for every problem.

Publisher description, verbatim

Last 7 dayson this actor

2other changes

Each one reaches followers by email the morning after.Follow this actor

Key figures9 readings

Price / 1k$3.00per 1,000 domain-checked

Users / 30d1→ 0 over 9 readings

Users, all time2→ 0 over 9 readings

Runs / 30d8↑ 7 over 8 readings

Runs / user / mo8.00runs per monthly user

Recorded changes

2026-10-19changePublisher changedsky_technologies → cobalt_relay—on record
2026-10-16changeListed—on record

showing 2 of 2 in the last 30 days · followers get the next one by email

History

9 readings since 2026-10-16

Users / 30d9 readings

Users, all time9 readings

Runs / 30d8 readings

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Numbers on this page are measured only by an independent census of the Apify Store — not self-reported. Not indexed: too little has happened to this actor for us to have anything worth saying yet.