SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
baugruppen-bayer.com
SSL/TLS Certificate
SSL/TLS Certificate for baugruppen-bayer.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- baugruppen-bayer.com
- Valid from
- Sep 14, 2026
- Valid until
- Dec 13, 2026 (80 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05AEAB386168DF9D1C446D7C200E428D70D5
- SHA-256 fingerprint
- F9:6C:7B:3B:E2:5E:DF:A0:64:FE:10:65:36:5F:2E:82:C7:E4:0E:AD:E8:99:AC:6A:7B:AB:EE:26:CC:E9:9A:D9
- Chain
- YR1 → Root YR → ISRG Root X1
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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