Get an insight into the inner-workings of a given website: uncover potential attack vectors, analyse server architecture, view security configurations, and learn what technologies a site is using.
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Free Mozilla Observatory Alternatives
The best free alternative to Mozilla Observatory is Web Check, which is also Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to Mozilla Observatory and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Mozilla Observatory are SiteOne Crawler, SpiderFoot, Google Lighthouse and PageSpeed Insights.
Alternatives list
32 SiteOne Crawler alternativesA free in-depth website analyzer providing audits of security, performance, SEO, accessibility and other technical aspects. Available as a desktop application for Windows/macOS/Linux and as a CLI tool for advanced users and CI/CD processes. It also includes an offline web page exporter.
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26 SpiderFoot alternativesAutomates open source intelligence by collecting, analyzing, and correlating data from diverse sources, offering web and command-line interfaces, modular plugins, detailed reports, data export, platform flexibility, and support for advanced integrations.
33 Google Lighthouse alternativesLighthouse is an open-source, automated tool for improving the quality of web pages. You can run it against any web page, public or requiring authentication. It has audits for performance, accessibility, progressive web apps, SEO and more.
Cost / License
- Free
- Open Source (Apache-2.0)
Application type
Platforms
- Online
- Google Chrome
- Mozilla Firefox
- Node.JS
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37 PageSpeed Insights alternativesPageSpeed Insights (PSI) reports on the performance of a page on both mobile and desktop devices, and provides suggestions on how that page may be improved.
Developed by Mozilla, the HTTP Observatory performs an in-depth assessment of a site’s HTTP headers and other key security configurations.
HTTP Observatory vs Mozilla Observatory Comments
- HTTP Observatory is Free and Open Source
32 WebPageTest alternativesRun a free website speed test from around the globe using real browsers at consumer connection speeds with detailed optimization recommendations.
Cost / License
- Free
- Open Source
Platforms
- Online
REDbot is lint for HTTP resources. it tests protocol correctness, cacheability, content negotiation and more.
Cost / License
- Free
- Open Source
Platforms
- Online
- Self-Hosted
- Docker
16 Qualys SSL Server Test alternativesThis 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.
Cost / License
- Free
- Proprietary
Platforms
- Online
Hardenize provides a comprehensive and free assessment of web site network and security configuration.
Cost / License
- Free
- Proprietary
Platforms
- Online
- Software as a Service (SaaS)
Web Privacy Check monitors privacy enhancing features on websites, and helps you find out who is letting you exercise control over your privacy. We check to what extent a website monitors your behaviour and how much they gossip about the monitoring to third parties.
Cost / License
- Free
- Proprietary
Platforms
- Software as a Service (SaaS)
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It's the successor to Mozilla Observatory.