SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sasad-wellness.hu
SSL/TLS Certificate
SSL/TLS Certificate for sasad-wellness.hu
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- mail.simsec.hu
- Valid from
- Sep 28, 2026
- Valid until
- Dec 27, 2026 (43 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 057D8771D577084A36C5DC049B9CECAE2776
- SHA-256 fingerprint
- 4A:2C:06:40:8A:C8:82:96:C7:20:CC:07:34:1B:A2:53:C6:49:2F:C4:FB:85:DC:82:A7:B9:4D:C4:7A:7E:D7:F0
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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