SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

gis-bg.com

SSL/TLS Certificate

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

SSL/TLS Certificate for gis-bg.com

Valid
Issued by (CA)
Let's Encrypt
Subject
cpcalendars.arenaarmeecsofia.net
Valid from
Oct 14, 2026
Valid until
Jan 12, 2027 (64 days remaining)
Public key
RSA 2048-bit
Serial
054B63C628058D688DD46DAADF1D3FF45749
SHA-256 fingerprint
03:EC:2D:C8:8B:F4:9F:D1:AC:EF:4F:39:C0:C2:3D:06:D9:F0:6E:CE:12:20:D9:C4:DE:36:D9:E5:9D:99:DB:2F
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (20)
*.bgkarta.net, *.detskipesnichki.com, *.gis-bg.com, arenaarmeecsofia.net, autoconfig.arenaarmeecsofia.net, autodiscover.arenaarmeecsofia.net, cpanel.arenaarmeecsofia.net, cpcalendars.arenaarmeecsofia.net, cpcontacts.arenaarmeecsofia.net, detskipesnichki.com, gis-bg.com, mail.arenaarmeecsofia.net, webdisk.arenaarmeecsofia.net, webmail.arenaarmeecsofia.net, www.arenaarmeecsofia.bgkarta.net, www.arenaarmeecsofia.net, www.bgmaps.bgkarta.net, www.detskipesnichkicom.bgkarta.net, www.gis-bg.bgkarta.net, www.xn--80ahd5abdn4ccom.bgkarta.net

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

We've observed 1 previous certificate for this host. This certificate has been served since Oct 19, 2026.

Never get surprised by gis-bg.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch gis-bg.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.