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 domplan-investa.si

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
avantnatur.com
Valid from
Sep 25, 2026
Valid until
Dec 24, 2026 (41 days remaining)
Public key
RSA 4096-bit
Serial
06C8636B811BD7891D29CBCF3150CAD9F868
SHA-256 fingerprint
69:34:22:AC:49:A5:91:37:13:E8:37:33:75:79:36:DD:E0:A1:8F:CB:BF:AA:A9:D7:87:FA:E7:F1:FF:C2:FC:C2
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
avantnatur.com, www.avantnatur.com

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 Oct 9, 2026.

Never get surprised by domplan-investa.si's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch domplan-investa.si continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.