Prerender IP Ranges

This repository contains the official IP ranges that clients will see making HTTP requests to their websites when using Prerender.io services. Use these ranges for firewall whitelisting to allow Prerender access to your website.

⚠️ Important: These ranges only include client-facing services (proxy networks, rendering servers, and the sitemap crawler). Internal infrastructure IPs (databases, monitoring, load balancers) are excluded.

Last Updated: 2026-08-11

Core IP Range Files

• ipranges.txt - Plain text format with one IP range per line (9 ranges)
• ipranges-all.txt - Same content as ipranges.txt, kept for backwards compatibility
• ipranges.json - JSON array format of the same ranges for programmatic access

Geographic Data

• geofeed.csv - Geographic location data for IP ranges in RFC 8805 format
• CNAME - DNS CNAME configuration file

IP Ranges

Proxy networks and rendering servers (8 ranges)

• 103.207.40.0/24 … 103.207.43.0/24 - EU (Frankfurt, Amsterdam, Kista)
• 104.224.12.0/24 … 104.224.15.0/24 - US

Sitemap crawler (1 range)

• 5.161.0.0/16 - Hetzner US; crawler runs on VMs without static addresses within this range