SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
fysik-aztek.net
SSL/TLS Certificate
SSL/TLS Certificate for fysik-aztek.net
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.fysik-aztek.net
- Valid from
- Sep 24, 2026
- Valid until
- Dec 23, 2026 (51 days remaining)
- Public key
- EC 384-bit
- Serial
- 06A06BB982BDAF4E7117911A7470175A3F78
- SHA-256 fingerprint
- 80:5F:82:23:80:51:74:8C:09:EF:E5:EB:AA:D9:FE:ED:2E:85:9B:26:A3:09:95:6C:C2:0E:61:9D:2A:88:44:70
- 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 fysik-aztek.net's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch fysik-aztek.net 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.