Custom User-Agent

By default, ⚡️ SpeedVitals uses the User-Agent of the selected device in a test. But it is possible to specify a Custom User-Agent.

If a Website changes its behavior based on User-Agent (for Browser/Feature Detection), that behavior can be replicated by providing a Custom User-Agent.

Here are some sample User-Agents that can be used for testing:

Chrome 99 on macOS Monterey

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51 Safari/537.36

Safari 15.3 on macOS Monterey

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.3 Safari/605.1.15

Firefox 97 on macOS Monterey

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:97.0) Gecko/20100101 Firefox/97.0

Edge 99 on Windows 10

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51 Safari/537.36 Edg/99.0.1150.36

Chrome Canary 101 on Windows 10

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4937.0 Safari/537.36

Safari Mobile 15.3 on iPhone 11

Mozilla/5.0 (iPhone; CPU iPhone OS 15_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.3 Mobile/15E148 Safari/604.1

Chrome Mobile 96 on Android 9

Mozilla/5.0 (Linux; Android 9; ASUS_X01BDA) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.45 Mobile Safari/537.36

Internet Explorer 11

Mozilla/5.0 (compatible, MSIE 11, Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko

Internet Explorer 8

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)