SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
genius-fls.com
SSL/TLS Certificate
SSL/TLS Certificate for genius-fls.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- genius-fls.com
- Valid from
- Sep 2, 2026
- Valid until
- Dec 1, 2026 (46 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05E7C400F8A8A44E09052BFD98C9E654D7D5
- SHA-256 fingerprint
- 61:8B:E3:5A:04:59:63:62:FF:6B:24:7C:0F:61:73:B8:8D:D9:34:AA:85:A8:7E:89:DA:13:E4:B5:A2:5F:AB:D2
- Chain
- YR1 → 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 21, 2026.
Never get surprised by genius-fls.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch genius-fls.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.