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---
stage: Ecosystem
group: Integrations
info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
---
# reCAPTCHA **(FREE SELF)**
GitLab leverages [Google's reCAPTCHA](https://www.google.com/recaptcha/about/)
to protect against spam and abuse. GitLab displays the CAPTCHA form on the sign-up page
to confirm that a real user, not a bot, is attempting to create an account.
## Configuration
To use reCAPTCHA, first create a site and private key.
1. Go to the [Google reCAPTCHA page](https://www.google.com/recaptcha/admin).
1. To get reCAPTCHA v2 keys, fill in the form and select **Submit**.
1. Sign in to your GitLab server as an administrator.
1. On the top bar, select **Menu > Admin**.
1. On the left sidebar, select **Settings > Reporting** (`admin/application_settings/reporting`).
1. Expand **Spam and Anti-bot Protection**.
1. In the reCAPTCHA fields, enter the keys you obtained in the previous steps.
1. Select the **Enable reCAPTCHA** checkbox.
1. To enable reCAPTCHA for logins via password, select the **Enable reCAPTCHA for login** checkbox.
1. Select **Save changes**.
1. To short-circuit the spam check and trigger the response to return `recaptcha_html`:
1. Open `app/services/spam/spam_verdict_service.rb`.
1. Change the first line of the `#execute` method to `return CONDITIONAL_ALLOW`.
NOTE:
Make sure you are viewing an issuable in a project that is public. If you're working with an issue, the issue is public.
## Enable reCAPTCHA for user logins using the HTTP header
You can enable reCAPTCHA for user logins via password [in the user interface](#configuration)
or by setting the `X-GitLab-Show-Login-Captcha` HTTP header.
For example, in NGINX, this can be done via the `proxy_set_header`
configuration variable:
```nginx
proxy_set_header X-GitLab-Show-Login-Captcha 1;
```
In Omnibus GitLab, this can be configured via `/etc/gitlab/gitlab.rb`:
```ruby
nginx['proxy_set_headers'] = { 'X-GitLab-Show-Login-Captcha' => '1' }
```
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