Firewalls and reCAPTCHA

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If you are using a firewalls, you will need to have outbound access to api-verify.recaptcha.net. This address can be hosted on different IP addresses depending on the location of your server. You should add access to port 80 on all of the following IP ranges:

  • 64.34.251.144/28 (64.34.251.144 - 64.34.251.159)
  • 69.12.97.160/27 (69.12.97.160 - 69.12.97.191)
  • 87.233.189.0/27 (87.233.189.0 - 87.233.189.31)

From time to time, we may add new IP addresses to this list. We will give at least one week's notice on our public mailing list before implementing the change.

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