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 - [Keywordtool.io](http://keywordtool.io/) - Keyword search tool for Google, YouTube, App Store, and Bing.
 - [Open Link Profiler](http://openlinkprofiler.org/) - Discover who is creating backlinks to your site.
 - [SemRush](http://www.semrush.com/) - Comprehensive tool for analyzing website keywords.
+- [Signals CLI](https://github.com/sortlist/signals-cli) - Intent signal monitoring CLI. Track LinkedIn engagers, keyword posters, job changers, funding events. JSON output for automation pipelines.
 
 ## **Performance and Speed**
 - [Google Mobile Friendly Test](https://www.google.com/webmasters/tools/mobile-friendly) - Test your site’s mobile compatibility according to Google.