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Conditions

These articles describe conditions and how to use them in VCL and the Fastly web interface.

About conditions

Conditions are a configuration mechanism that you can add to your service to control how particular requests are processed. Like conditions…

Troubleshooting conditions

If you are having problems using conditions, here are some common things to look for. Check the Apply if field for if statements Most…

Using conditions

Conditions use the Varnish Configuration Language (VCL) to define when a configuration object should be applied while processing requests…