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HAProxy Integration Guide

This guide shows how to configure HAProxy with Prerender.io to serve prerendered pages to search engine bots. This improves SEO by delivering fully rendered HTML to bots, making it ideal for client-side rendered sites that want better indexing without backend changes.

Please note that this integration is community-maintained, not officially supported by Prerender. We only provide a guide for integrating Prerender with their service.

 

View source on GitHub

View the HAProxy config here: https://gist.github.com/roylines/7dc14c419523975daaa7

Important Notes

  • Replace YOUR_TOKEN with your actual Prerender API token.

  • Replace http://example.com with your website’s base URL.

  • The timeout server value (20s) can be adjusted depending on your expected render time.

  • This configuration excludes static assets from being routed to Prerender for efficiency.

  • If you are using HTTPS for your website, additional SSL configuration in HAProxy may be needed.

  • Testing in a staging environment before deploying to production is recommended.

 

Verify Your Installation

After integration, it’s important to verify that everything is working as expected. We’ve provided an easy-to-follow guide to help you test your setup and confirm that Prerender is functioning properly.

Or, test with curl command with a custom User-Agent header:

curl -v -A googlebot www.yourpage.com/

 

Is the Prerender integration working on other pages?

Test if the Prerender integration works on the other pages based on this guide: Verify the integration

If you don't see the Prerender headers / IDs, then the Integration is not working, which might be why the other URL is not cached. 

 

Getting an Error?

If you see the message "Prerender Integration Not Detected," you can refer to the troubleshooting guide here to help resolve the issue.

 

Expert Assistance

For those who need additional help or want to ensure a smooth and secure launch, we offer a specialized package:

Kickstart Package

Price: $800 (one-time payment)

This one-time package empowers you with expert setup and configuration, ensuring a smooth and secure launch.

Features:

  • Three setup and configuration sessions with our experts
  • Onboarding assistance
  • Security assessment

To learn more about this package or to purchase, visit the Packages section under the Billing menu in your Prerender dashboard. 

 

Get Support

If you're still encountering issues after implementing Prerender:

  • Review your implementation against our documentation
  • Contact our support team:

To help us resolve your issue as quickly as possible, please gather and include any relevant information, such as:

  • Error messages you're seeing
  • Steps you've already taken to troubleshoot
  • Screenshots or screen recordings (if applicable)

Providing these details up front will help our team diagnose the problem more efficiently and get you back on track faster.

 

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