SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jam-sam.com
SSL/TLS Certificate
SSL/TLS Certificate for jam-sam.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- jam-sam.com
- Valid from
- Oct 6, 2026
- Valid until
- Jan 4, 2027 (89 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 052759947BB261E52754932FA27A5290949E
- SHA-256 fingerprint
- AF:F1:A0:B3:04:8C:5A:A2:67:3D:59:3F:FC:6C:4E:84:15:D8:E5:EB:80:9B:9C:50:1A:1B:DE:2D:F9:53:59:80
- Chain
- YR2 → 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 1, 2026.
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This is today's certificate. Turn on monitoring and we'll watch jam-sam.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, 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.
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