SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
aim-net.cz
SSL/TLS Certificate
SSL/TLS Certificate for aim-net.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.aim-net.cz
- Valid from
- Sep 29, 2026
- Valid until
- Dec 28, 2026 (53 days remaining)
- Public key
- EC 256-bit
- Serial
- 05056FE318B530AC412896B7BE6B625FC3E9
- SHA-256 fingerprint
- 3F:EB:8E:BD:65:BA:5F:52:25:E2:4C:6B:D4:94:98:1C:2D:E2:45:D3:81:BF:D6:50:ED:23:F5:DA:00:D8:CC:18
- Chain
- YE1 → 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.
This certificate has been served since Nov 4, 2026.
Never get surprised by aim-net.cz's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch aim-net.cz 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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