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 dg-prolet-dabnica.com

Valid
Issued by (CA)
Let's Encrypt
Subject
www.dg-121.com.40-su.com
Valid from
Sep 23, 2026
Valid until
Dec 22, 2026 (63 days remaining)
Public key
RSA 2048-bit
Serial
05EBDA405818FDC6E67412EAFC2F99BCB807
SHA-256 fingerprint
F9:03:AF:EC:88:2B:5B:67:52:04:24:E9:61:77:66:7A:A2:9B:67:D3:A0:34:39:6A:0A:02:6B:8B:53:7B:7D:7E
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (22)
*.40-su.com, *.com.40-su.com, *.dg-121.com, *.dg-prolet-dabnica.com, *.dg83sofia.com, *.dgalenmak.com, *.ou-hristobotevcerovo.eu, *.vsu-bs.com, 40-su.com, dg-121.com, dg-prolet-dabnica.com, dg83sofia.com, dgalenmak.com, ou-hristobotevcerovo.eu, ou-hristobotevcerovo.eu.40-su.com, vsu-bs.com, www.dg-121.com.40-su.com, www.dg-prolet-dabnica.com.40-su.com, www.dg83sofia.com.40-su.com, www.dgalenmak.com.40-su.com, www.ou-hristobotevcerovo.eu.40-su.com, www.vsu-bs.com.40-su.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 Sep 24, 2026.

Never get surprised by dg-prolet-dabnica.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch dg-prolet-dabnica.com 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.