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 and rendering servers). Internal infrastructure IPs (databases, monitoring, load balancers) are excluded.

Last Updated: 2025-11-21

Core IP Range Files

• ipranges.txt - Plain text format with one IP range per line (324 ranges)
• 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 Range Categories

The IP ranges are organized by infrastructure provider and purpose:

Global Proxy Networks (3 ranges)

• 103.207.40.0/22 - Frankfurt, Germany (GlobalSecureLayer)
• 103.207.42.0/22 - Amsterdam, Netherlands (TeraSwitch)
• 104.224.12.0/22 - United States (GlobalSecureLayer)

US Rendering Servers (83 ranges)

• 104.224.13.x/25 - NOCix Kansas City (82 ranges)
• 104.224.14.0/24 - WebNX Ogden, Utah (1 consolidated range)

Individual Rendering Servers (90 ranges)

• NOCix dedicated servers (63.141.x.x/32, 69.x.x.x/32)
• WebNX dedicated servers (173.231.x.x/32, 216.x.x.x/32, 107.182.x.x/32, 108.171.x.x/32, etc.)
• Individual /32 ranges for servers that make direct requests to client websites

IPv6 Ranges (148 ranges)

• 2602:2dd::/36 - Global proxy IPv6 ranges
• 2a01:4f8::/32 - Hetzner IPv6 ranges (primary)
• 2a01:4f9::/32 - Hetzner IPv6 ranges (secondary)
• Used by servers with IPv6 connectivity when making requests to client websites

Validation

All IP ranges are validated for:

• Geographic accuracy
• Infrastructure presence