SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
lag-is.net
SSL/TLS Certificate
SSL/TLS Certificate for lag-is.net
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- www.linzag-telekom.at
- Valid from
- Oct 21, 2026
- Valid until
- Jan 19, 2027 (66 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06B32FD32AC19433307ECE1F76D145AC8F0A
- SHA-256 fingerprint
- 43:9A:ED:E0:6D:99:A4:7F:07:EC:56:45:3A:0D:15:63:FE:57:0C:B8:B8:FD:6F:E9:FD:95:52:8F:2B:85:99:BF
- 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 16, 2026.
Never get surprised by lag-is.net's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch lag-is.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.