SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sofa-king.org
SSL/TLS Certificate
SSL/TLS Certificate for sofa-king.org
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sofa-king.org
- Valid from
- Sep 3, 2026
- Valid until
- Dec 2, 2026 (88 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05817863214BE944F3DF61B1403AFFF8B44A
- SHA-256 fingerprint
- 8F:68:92:D8:29:9C:0E:F5:A4:FB:4E:E2:EF:25:3F:A3:DF:7A:E6:C3:5F:60:54:32:6A:82:E0:64:B3:0E:92:AE
- 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 Sep 2, 2026.
Never get surprised by sofa-king.org's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sofa-king.org 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.