SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
u-fab.com
SSL/TLS Certificate
SSL/TLS Certificate for u-fab.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- u-fab.com
- Valid from
- Sep 9, 2026
- Valid until
- Dec 8, 2026 (31 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 066C517DFF7DF2C9690C4B138544B3651E2D
- SHA-256 fingerprint
- 8B:D0:71:99:98:D8:71:C1:86:BA:34:D4:6E:1D:2A:15:C3:ED:73:B7:1E:B9:73:7C:C7:95:D8:3E:28:2C:8A:CC
- 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 Sep 11, 2026.
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This is today's certificate. Turn on monitoring and we'll watch u-fab.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.
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