There are a number of ways to accomplish selective proxying. 1 - Via a Browser Add-on/Extension Such as FoxyProxy: https://getfoxyproxy.org/ 2 - Via Global Exclusions Leveraging Global Exclusions you can specify URLs that ZAP should not intercept. 3 - Via a PAC (Proxy Auto-Config) File You can create your own PAC (Proxy Auto-Config) file and dynamically set proxying as you need, then point your browser at it on your harddrive using the file:/// scheme. For example: functionFindProxyForURL(url...