SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
xn--2y1b22jbvk.net
SSL/TLS Certificate
SSL/TLS Certificate for xn--2y1b22jbvk.net
Hostname mismatch- Issued by (CA)
- Sectigo Limited
- Subject
- *.saramin.co.kr
- Valid from
- Jan 14, 2026
- Valid until
- Feb 6, 2027 (86 days remaining)
- Public key
- RSA 2048-bit
- Serial
- F9B374CEA2F91B08727366BB232BAAF7
- SHA-256 fingerprint
- 31:D5:FC:94:FB:8E:B0:EC:A1:17:ED:6F:62:84:3A:E3:C0:B3:B6:91:3B:35:B4:58:20:8D:5A:1B:31:20:79:65
- Chain
- Sectigo RSA Domain Validation Secure Server CA → USERTrust RSA Certification Authority
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 26, 2026.
Never get surprised by xn--2y1b22jbvk.net's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch xn--2y1b22jbvk.net 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.