SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
bjoern-renata.com
SSL/TLS Certificate
SSL/TLS Certificate for bjoern-renata.com
Valid- Issued by (CA)
- Google Trust Services
- Subject
- bjoern-renata.com
- Valid from
- Oct 17, 2026
- Valid until
- Jan 15, 2027 (89 days remaining)
- Public key
- RSA 2048-bit
- Serial
- E2F0D318CBDEC19F0A8E4EEA69EE0528
- SHA-256 fingerprint
- 19:61:C8:78:38:2E:67:8D:17:A7:05:DF:6E:04:61:1D:FD:34:E4:BF:19:6F:AC:52:6F:04:E1:CA:2F:2D:DE:AC
- Chain
- WR3 → GTS Root R1 → GlobalSign 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
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, CNAME, TXT 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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