SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for txt.pl
Hostname mismatch- Issued by (CA)
- Asseco Data Systems S.A.
- Subject
- *.webtech.pl
- Valid from
- Dec 31, 2025
- Valid until
- Dec 31, 2026 (162 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 05A86CF1781C696DC0D4D51E5BF13F2C
- SHA-256 fingerprint
- 57:0A:AA:9A:A6:CF:A2:75:4B:A9:F6:BF:66:A9:B5:68:A7:81:4D:EB:0F:E4:86:09:45:46:44:93:AE:57:49:1F
- Chain
- Certum DV TLS G2 R39 CA → Certum Trusted Root CA → Certum Trusted Network CA
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.