Mozilla/5.0 (Linux; Android 10; CPH2185 Build/QP1A.190711.020; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/143.0.7499.143 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/543.0.0.55.73;IABMV/1;] • PageviewsOnline

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The user agent "Mozilla/5.0 (Linux; Android 10; CPH2185 Build/QP1A.190711.020; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/143.0.7499.143 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/543.0.0.55.73;IABMV/1;]" is Facebook App running on an Android operating system.

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User Agent String

This is the full user agent string sent in HTTP requests:

Mozilla/5.0 (Linux; Android 10; CPH2185 Build/QP1A.190711.020; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/143.0.7499.143 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/543.0.0.55.73;IABMV/1;]

Information

What we can determine from this user agent string:

Client	Facebook App
Operating System	Android