Developed by Mozilla, the HTTP Observatory performs an in-depth assessment of a site’s HTTP headers and other key security configurations.
Cost / License
- Free
- Open Source (MPL-2.0)
Application type
Platforms
- Online
- Self-Hosted
United States


Sites and apps similar to CodePhantom include HTTP Observatory, which is free and open source. Other options are Qualys SSL Server Test, Hardenize, Security Headers and SSL/TLS Security Test by ImmuniWeb. In total there are seven Website Audit Tools like CodePhantom for self-hosting, Mac, Windows and Linux.
Developed by Mozilla, the HTTP Observatory performs an in-depth assessment of a site’s HTTP headers and other key security configurations.


This free online service performs a deep analysis of the configuration of any SSL web server on the public Internet. Please note that the information you submit here is used only to provide you the service. We don't use the domain names or the test results, and we never will.

Hardenize provides a comprehensive and free assessment of web site network and security configuration.



The Website Security Test is a free online tool to perform web security and privacy tests:

Reviewing a website's Content-Security-Policy settings, suggesting improvements to protection, and possible bypasses to the policy.
