Discover, Inspect, and Report: CertAlert scans for SSL certificates, sends reports, and alerts you of upcoming expirations.

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Before you can effectively manage your SSL certificates, you need to know exactly what's out there. CertAlert seamlessly performs network discovery, pinpointing and assessing the SSL certificates deployed across your network.

Expiration Monitoring

CertAlert scans and tracks certificates during each periodic run, sending timely renewal alerts to designated recipients as expiration approaches.


CertAlert generates insightful reports, highlighting certificates that diverge from your security standards—whether due to weak algorithms, unauthorized issuers, self-signing, or other concerns. Configure CertAlert to send these reports via email to any number of recipients.


Below are just a few examples of the feedback we get from users of CertAlert.

"Wonderful tool, very easy to use and configure"
-- Didier Derck (Security Engineer)
(Toyota Europe)

"Works very well and helps us keep a close eye on all SSL renewals"
-- Jacob Colton (Director)
(Catalyst2 Web Hosting)

"Your assistance and software is greatly appreciated"
-- Chris Goosen CIO
( H&K )

"Just wanted to say, I love your Cert Alert application. It’s great!"
-- Matt Harman (System Administrator)

"...works like a charm!! Exactly what we are looking for!"
-- Tashiel Bhairo

Easy to use

Set up CertAlert in under two minutes with these simple steps:

  1. Unzip the certalert zip file to a folder
  2. Open a command prompt within the folder
  3. Type CertAlert.exe and press return

CertAlert comes pre-configured to check some well-known websites. To tailor it for your own networks:

  1. Modify the serverlist.txt file to change the hosts scanned
  2. Specify IP ranges by editing the CertAlert.dll.config file.

For a deeper dive into the configuration and more checkout our README.txt

Running CertAlert

CertAlert can be run automatically, be scripted, or run from a command prompt as shown below.