I am trying to write scripts to perform google search; however, once every 20-30 searches, google as us for human verification, which is very hard for a non-human agent to complete.
I tried the following things to avoid the human verification:
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Change LAN IP: Does not work at most of the times.
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Use a VPN to switch IP: works
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Change browser. It magically works!
What is the rationale behind the option 3? Do you know other methods or apps that works?
Do you think this will be a valid question on more professional SE sites like the stackoverflow?