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Free Plugin by lastsplash (a11n) v1.6.1

Block AI Crawlers

Adds robots.txt rules blocking AI crawlers and AI bots.

Block AI Crawlers

The facts

Rating
4.4★ from 8
Active installs
1k+
Price
Free
Last updated
1 Aug 2026
Added
Mar 2024
Requires WP
6.9
Tested up to
WP 7.0.4
Requires PHP
8.2
Downloads
21,544

Our analysis

AI-assisted

Block AI Crawlers is a WordPress plugin designed to prevent AI bots from scraping your website's content. It works by updating your site's robots.txt file to block a variety of AI crawlers, including those from OpenAI, Google, Meta, and more than 150 others. The plugin also allows you to add custom rules to your robots.txt file and includes experimental meta tags to further protect your content.

This plugin is suitable for website owners who want to safeguard their content from AI scraping. It is particularly useful for those concerned about how their material may be used by AI companies and wish to control access to their site.

Best for: Website owners looking to protect their content from AI scraping.

What it does well

  • Blocks over 150 AI bots and crawlers
  • Allows toggling of individual crawler blocks
  • Supports custom entries in robots.txt
  • Adds experimental meta tags for additional protection
  • Requires no configuration after activation

Where it falls short

  • Cannot guarantee complete protection against all scraping
  • Limited information on effectiveness against all bots

Verdict

Block AI Crawlers offers a straightforward solution for managing AI bot access to your site. While it provides useful features for content protection, its effectiveness may vary against all types of scraping.

From the developer

lastsplash (a11n)'s own description of Block AI Crawlers, lightly tidied.

Protect Your Content from AI Scraping

This plugin tells AI companies not to crawl your site for their products via standard robots.txt rules.

Features

Blocks AI Bots and Crawlers

The plugin blocks dozens of AI bots via your site’s robots.txt file. You can toggle the blocks for each individual crawler.

Blocked crawlers include:

  • OpenAI – Blocks crawlers used for ChatGPT
  • Google – Blocks crawlers used by Google’s Gemini AI products
  • Meta – Blocks FacebookBot and Meta training crawlers
  • Anthropic – Blocks crawlers used by Claude
  • Perplexity – Blocks crawlers used by Perplexity
  • Apple – Blocks Applebot-Extended
  • Amazon – Blocks Amazonbot
  • …and 150+ more via ai.robots.txt

The blocked crawler list is generated at build time from ai.robots.txt (robots.json, MIT). See the plugin’s README.md for license attribution.

Experimental Meta Tags

The plugin adds the experimental “noai, noimageai” directive to your site’s meta tags. You can toggle this on and off as needed.

Custom robots.txt Rules

Have custom entries for your robots.txt file? You can now add them directly through the plugin!

Usage

After activation, the plugin will automatically update your robots.txt and add the necessary meta tags. No further configuration is required, but you can check the settings page for a full list of blocked crawlers.

Limitations

While this plugin aims to block specified crawlers, it cannot guarantee complete protection against all forms of scraping, as some bots may disregard robots.txt directives.

Read the full description on the official page →

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