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 apik-it.ru

Valid
Issued by (CA)
Let's Encrypt
Subject
apik-it.ru
Valid from
Jul 10, 2026
Valid until
Oct 8, 2026 (77 days remaining)
Public key
RSA 2048-bit
Serial
05D34D242B61FDB54A7940C006A46E8FE6B6
SHA-256 fingerprint
0A:F6:C2:F4:84:CF:8A:DD:AC:CF:E0:54:10:33:95:2D:74:E0:D6:52:B4:E3:BC:E4:12:E6:A3:29:69:9E:55:59
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (1)
apik-it.ru

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).

Never get surprised by apik-it.ru's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch apik-it.ru 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.

Monitor this certificate free

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