[dewey]

Could always use something like https://www.browserstack.com/ if you really want to.

[nine_k]

Does it support opening Dev tools? If so, terrific.

[Normal_gaussian]

Its slightly too laggy to be that useful like that imo. Sure you can pop open the console and get some info, but prolonged manual use is painful.

Its fantastic automated tool however; and the live interface is great for irregular checks