google mobile

How does Google detect that you are using a cell phone when you go onto their site?

Like, when you are on the internet on your mobile phone and you go to Google, it senses that you have a cell phone, and sends you to a different web page. I want to know how you do that.

How does Google detect that you are using a cell phone when you go onto their site?

Like, when you are on the internet on your mobile phone and you go to Google, it senses that you have a cell phone, and sends you to a different web page. I want to know how you do that.

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