SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jungmun-science.com
SSL/TLS Certificate
SSL/TLS Certificate for jungmun-science.com
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- jungmun-science.com
- Valid from
- Sep 16, 2026
- Valid until
- Apr 2, 2027 (140 days remaining)
- Public key
- RSA 2048-bit
- Serial
- B0DF1452063248C432658F78AC64D88E
- SHA-256 fingerprint
- 98:DD:F7:3E:0D:94:E2:DB:24:8D:FC:15:1D:DA:52:9D:EE:50:5A:59:83:55:88:D6:42:AF:29:8C:CB:F3:A4:B0
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → 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 Oct 8, 2026.
Never get surprised by jungmun-science.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch jungmun-science.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.