Scarface Scarface - 1 year ago 94
PHP Question

Is it standard to check for proxies with getenv and is it effective?

Hey quick question, I am wondering

  1. Do big sites use php's getenv function to prevent proxy users from registering or signing in?

  2. Is it effective in deterring hackers from creating a bunch of accounts for abusive purposes if it is used?

Answer Source

There is no 100% effective way to determine whether a given user is utilizing a proxy or not. It's generally fairly ineffective to try - plus you'll block many legitimate users in the process.

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