SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
cg-tec.de
SSL/TLS Certificate
SSL/TLS Certificate for cg-tec.de
Valid- Issued by (CA)
- DigiCert Inc
- Subject
- cg-tec.de
- Valid from
- Nov 21, 2025
- Valid until
- Nov 20, 2026 (106 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 01537CB9821747AA24E55540CBB6A378
- SHA-256 fingerprint
- 49:45:8A:8D:7D:A3:2F:8F:5B:12:21:A1:15:9F:2D:D2:7B:6A:E6:E1:EB:9E:A7:C4:9D:51:31:E2:71:21:75:AA
- Chain
- Encryption Everywhere DV TLS CA - G2 → DigiCert Global Root G2
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
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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