SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for em-it.at
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- em-it.at
- Valid from
- Jun 17, 2026
- Valid until
- Sep 15, 2026 (53 days remaining)
- Public key
- EC 256-bit
- Serial
- 06BDAD2878B8B668C3CC77CFA7348BD22506
- SHA-256 fingerprint
- 02:69:72:3B:B1:33:0F:2B:97:21:99:55:EB:E2:5F:B7:B5:FD:68:0C:97:A6:30:1C:A8:95:4D:1F:24:A6:61:F2
- 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.
Never get surprised by em-it.at's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch em-it.at 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.