SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
just-run.site
SSL/TLS Certificate
SSL/TLS Certificate for just-run.site
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- just-run.site
- Valid from
- Oct 29, 2026
- Valid until
- Jan 27, 2027 (83 days remaining)
- Public key
- EC 256-bit
- Serial
- 0629807B8C8D17BF509E16946D1E0DFB19CC
- SHA-256 fingerprint
- 12:F1:29:26:77:52:48:51:E6:CF:2B:8F:05:96:DF:62:33:C2:B0:2D:8E:60:7D:8B:84:20:77:79:95:08:14:A0
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by just-run.site's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch just-run.site 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.
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