Understanding Routing Filters

This article provides information about Routing Filters, how they work, and how to use them.

What are Routing Filters?

Routing Filters allow you to fine-tune the routing for your Bunny CDN Pull Zones. A routing filter will limit the CDN routing only to a specific set of CDN locations based on the enabled filters.

For example, if the European Union filter is enabled, your users will only be routed to CDN PoPs that are located within European Union. This helps you adhere to the highest standards of privacy and security by strictly keeping all of your data within the European Union. 

Combining multiple routing filters will do a cross-section of all enabled filters. This means the end users will only be routed to CDN PoPs contained in all selected filters.

How do Routing Filters affect performance?

It is important to understand what Routing Filters mean for global performance. By design, the Routing Filters might significantly limit the global coverage that Bunny CDN provides. It will strictly route traffic to the filtered locations, such as the EU. In this case, any region outside of the EU will, therefore also be routed to the filtered selection. This might negate most performance benefits outside of the European Union. 

Therefore, we only suggest Routing Filters be enabled where strict local compliance is enabled, and the majority of your audience resides within the EU.

Do Routing Filters work on DNS?

For security and scalability reasons, the Routing Filters currently only function on CDN Pull Zones. DNS traffic will still be routed to our global DNS network. However, DNS traffic will generally not receive any personally identifiable user information.

Which regions are included in the EU-only Routing Filter?

Currently, bunny.net has a direct local presence in nearly every country of the EU and covers Austria, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, and Sweden.

Combined, this makes up for 24 Points of Presence (PoPs) within Europe.

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