Available in all subroutines.
A code representing one of Fastly's POP locations.
Try it out
server.datacenter is used in the following solution recipes. Recipes apply VCL to real-world use cases and can be deployed as-is, or adapted for your own service. See the full list of recipesfor more inspiration.
Click RUN on a sample below to provision a Fastly service, execute the code on Fastly, and see how the function behaves.
Decorating origin requests with GeoIP
Add GeoIP data about the client browser as extra headers in any requests from Fastly to your origin.
Fastly offers a myriad of different variables that you can log. See and test a large collection here.
User contributed notes
We welcome comments that add use cases, ideas, tips, and caveats. All comments will be moderated before publication. To post support questions, visit our support center and we'll find you the help you need.