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 synara-technologies.com

Valid
Issued by (CA)
Let's Encrypt
Subject
werner-salzgitter.de
Valid from
Jul 14, 2026
Valid until
Oct 12, 2026 (33 days remaining)
Public key
RSA 2048-bit
Serial
05574E4EC736F67C08CB71ECBE629AE59A22
SHA-256 fingerprint
23:EB:B6:30:54:AF:C0:B9:41:30:08:83:D3:C5:93:54:35:B2:C9:AF:5A:69:A6:66:55:D6:D7:A9:B9:C1:11:90
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (30)
cloud.synara-technologies.com, cloud.synara-technologies.de, cloud.werner-salzgitter.de, git.synara-technologies.com, git.synara-technologies.de, git.werner-salzgitter.de, gitlab.synara-technologies.com, gitlab.synara-technologies.de, imap.synara-technologies.com, imap.synara-technologies.de, lists.werner-salzgitter.de, mail.remjam.com, mail.remjam.de, mail.synara-technologies.com, mail.werner-salzgitter.de, smtp.synara-technologies.com, smtp.synara-technologies.de, stage.synara-technologies.com, stage.synara-technologies.de, stats.synara-technologies.com, stats.synara-technologies.de, svn.werner-salzgitter.de, synara-technologies.com, synara-technologies.de, test.synara-technologies.com, test.synara-technologies.de, werner-salzgitter.de, www.synara-technologies.com, www.synara-technologies.de, www.werner-salzgitter.de

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 Aug 22, 2026.

Never get surprised by synara-technologies.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch synara-technologies.com 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.