SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
mascera-tec.com
SSL/TLS Certificate
SSL/TLS Certificate for mascera-tec.com
Valid- Issued by (CA)
- Asseco Data Systems S.A.
- Subject
- *.mascera-tec.com
- Valid from
- Nov 19, 2025
- Valid until
- Dec 18, 2026 (119 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 431DDD5C18626F885FE7FEF1CF03FAD6
- SHA-256 fingerprint
- 62:8A:05:07:F3:AA:E4:D2:2D:B8:21:06:7C:36:BA:19:3B:F6:69:51:3C:7E:1B:59:DD:09:FC:40:12:DF:C7:11
- Chain
- Certum DV TLS G2 R39 CA → Certum Trusted Root CA
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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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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