Sign in to keep your check history and double your quota (5 → 10 checks a day).
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By continuing you agree to the Terms of Service and Privacy Policy. Anonymous checks stay anonymous — signing in only unlocks history, quota and API access.
Every signed-in check is kept — compare a domain before and after a renewal without digging through openssl output.
Pro accounts get API keys — fail the pipeline when a new certificate would break a platform you care about.
Daily re-checks with expiry and compatibility-change alerts — the difference between "found out from a user" and "knew a month ahead".