How to Block PerplexityBot

Complete guide to blocking PerplexityBot (Perplexity) from crawling your website using robots.txt, server configuration, and Switch workflows.

Operated by PerplexityAI Assistants

Should You Block PerplexityBot?

Blocking PerplexityBot prevents your content from appearing in Perplexity's AI-generated answers. Each visit from this agent represents a real user asking about your content.

Consider allowing PerplexityBot for visibility, or use Switch to serve agent-optimized markdown content instead of blocking entirely.

Blocking Methods

1robots.txt

High for cooperative crawlers

Add a Disallow rule for PerplexityBot's user-agent string in your robots.txt file. This is the standard, cooperative method that well-behaved crawlers respect.

2Server-side UA filtering

High

Configure your web server (nginx, Apache, Cloudflare) to reject requests matching PerplexityBot's user-agent patterns. This blocks at the network level before your application processes the request.

3Switch Journey Workflows

Highest — granular, real-time control

Create a custom journey in Switch that detects PerplexityBot and routes it to a block action, challenge, redirect, or modified content — without touching your server configuration.

robots.txt — Block PerplexityBot

Add the following to your robots.txt file (at the root of your domain) to block PerplexityBot:

User-agent: PerplexityBot
Disallow: /

User-agent: perplexity
Disallow: /

robots.txt — Allow with Restrictions

Alternatively, allow PerplexityBot on most pages while blocking specific directories:

User-agent: PerplexityBot
Disallow: /private/
Allow: /

User-agent: perplexity
Disallow: /private/
Allow: /

PerplexityBot User-Agent Strings

Use these patterns to identify PerplexityBot in your server logs or firewall rules:

PerplexityBot
perplexity

Frequently Asked Questions

Does blocking PerplexityBot affect my Google search rankings?

No. Blocking PerplexityBot does not affect your Google search rankings. Only blocking Googlebot impacts Google Search visibility.

Does PerplexityBot respect robots.txt?

Yes, PerplexityBot respects robots.txt directives. Adding a Disallow rule for its user-agent will prevent it from crawling blocked paths.

Can I allow PerplexityBot on some pages but not others?

Yes. Use robots.txt to disallow specific directories, or use Switch journey workflows for granular page-level control with conditional logic.

Go beyond robots.txt

Switch detects PerplexityBot in real-time and lets you build custom journey workflows — block, challenge, redirect, or serve modified content. No server changes required.

Get Started Free
PerplexityBot Profile Agents Directory