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 arke.co.za

Valid
Issued by (CA)
Let's Encrypt
Subject
arke.co.za
Valid from
Oct 26, 2026
Valid until
Jan 24, 2027 (79 days remaining)
Public key
RSA 2048-bit
Serial
06ED0B971D3F642D4C2D97343B329194C6F3
SHA-256 fingerprint
06:FE:58:FC:16:C6:CB:F9:46:99:26:22:52:74:1A:55:2A:EF:05:64:45:81:07:CE:3D:BA:33:5A:F1:9B:95:C9
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (7)
admin.arke.co.za, arke.co.za, autoconfig.arke.co.za, autodiscover.arke.co.za, mail.arke.co.za, webmail.arke.co.za, www.arke.co.za

Certificate Authority Authorization (CAA)

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

We've observed 1 previous certificate for this host. This certificate has been served since Oct 30, 2026.

Never get surprised by arke.co.za's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch arke.co.za 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.