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Web Analytics. Open Sourced.

https://www.openwebanalytics.com/

Open Web Analytics (OWA) is an open source web analytics software framework that you can use to track and analyze how people use your websites and applications. OWA is licensed under GPLv2 and provides developers with easy ways to add web analytics to their sites using simple Javascript and PHP based APIs. OWA also comes with support for tracking websites made with popular content management frameworks such as WordPress and MediaWiki.

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