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 zion-traffic.net

Expiring soon
Issued by (CA)
Let's Encrypt
Subject
zion-traffic.net
Valid from
Aug 12, 2026
Valid until
Nov 10, 2026 (20 days remaining)
Public key
EC 256-bit
Serial
058AA9C180C4BA0C3A825C69A8AED1DAA8BE
SHA-256 fingerprint
3D:1E:5D:40:66:1A:C9:01:8B:36:D6:23:FC:1D:46:9A:BE:E6:EC:F6:3A:93:0E:FF:E0:09:88:A0:D4:DC:96:43
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (1)
zion-traffic.net

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 6, 2026.

Never get surprised by zion-traffic.net's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch zion-traffic.net 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.