51Degrees Device Detection Varnish  4.2Newer Version 4.3

A device detection module for Varnish


This example shows how to retrieve property meta data from 51Degrees on-premise device detection. This feature can be used to get information such as the category that a property belongs to or the possible values a property can have. (As of the current data file. If the data file is updated, the possible values for a property can change)

This example is available in full on GitHub.

This example requires a local data file. Free data files can be acquired by pulling the submodules under this repository or from the device-detection-data GitHub repository.

The path to the data need to be updated before running the example.

In a Linux environment, the following commands:

$ curl localhost:8080 -I -A "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 Safari/537.36"

Expected output:

HTTP/1.1 200 OK
X-Metadata: False,55,0,0,PERFORMANCE,__zilla/5.0 (Windows____10.0; Win6_______________________________________________Chrome/7_.0.3904__7 Safari/5_____,23,15364-38914-97847-0
vcl 4.0;
import fiftyonedegrees;
backend default {
.host = "";
.port = "80";
sub vcl_deliver {
set resp.http.X-IsMobileX = fiftyonedegrees.match_all("IsMobile,Iterations,Drift,Difference,Method,UserAgents,MatchedNodes,DeviceId");
sub vcl_init {