Free tools
Free cold email infrastructure tools
Quick checks for the records that make or break a cold email launch. Each one runs live in your browser, no signup. When you need a full verdict across every domain, inbox, and tracking domain, book launch QA.
Free SPF Record Checker
Look up a domain's SPF record and count its DNS lookups against the limit of 10.
Open toolFree DMARC Record Checker
Look up a domain's DMARC record and read its policy in plain English.
Open toolFree DKIM Record Checker
Look up a domain's DKIM selector and confirm the public key exists.
Open toolSPF DKIM DMARC Checker
Run SPF, DKIM, and DMARC together for a sending domain before launch.
Open toolFree MX Record Checker
Look up a domain's MX records and detect the mail provider.
Open toolFree Email Blacklist Checker
Check a domain and sampled mail server IPs against domain and email blocklists.
Open toolFree Domain Reputation Checker
Check observable cold email reputation risks across age, blacklist, authentication, MX, and HTTPS signals.
Open toolFree Email Deliverability Checker
Check observable cold email infrastructure readiness across MX, SPF, DKIM, DMARC, blacklist, age, tracking-domain, and SMTP egress identity signals.
Open toolCold Email Domain Checker
Run MX, SPF, and DMARC in one pass for a quick readiness verdict on a sending domain.
Open tool