SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jen-says-oui.com
SSL/TLS Certificate
SSL/TLS Certificate for jen-says-oui.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- jen-says-oui.com
- Valid from
- Sep 10, 2026
- Valid until
- Dec 9, 2026 (37 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0663B411FB335FF6C825D7F3228D423CC245
- SHA-256 fingerprint
- 47:28:7A:A9:E8:2A:30:FF:C2:5A:2F:EC:16:40:0D:C3:B9:75:C0:4B:32:CA:26:34:66:9E:0D:CC:20:5D:D6:5C
- 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.
This certificate has been served since Oct 25, 2026.
Never get surprised by jen-says-oui.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch jen-says-oui.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, 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.