SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
oll-alumni.com
SSL/TLS Certificate
SSL/TLS Certificate for oll-alumni.com
Self-signed- Issued by (CA)
- 126-oll-alumni.gdmig-vfalkenbach.com
- Subject
- 126-oll-alumni.gdmig-vfalkenbach.com
- Valid from
- Dec 10, 2021
- Valid until
- Dec 10, 2022 (expired 1350 days ago)
- Public key
- RSA 2048-bit
- Serial
- 01C5B773A2
- SHA-256 fingerprint
- 80:CE:C1:B9:F7:95:D4:CE:E4:24:B2:F2:84:5F:FE:C9:5B:07:82:17:09:B1:E7:AF:97:E8:30:B6:B4:EE:65:C0
- Chain
- 126-oll-alumni.gdmig-vfalkenbach.com
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by oll-alumni.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch oll-alumni.com continuously, notifying you the moment anything moves across all three signals:
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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.