Browser testing checklist

Tested on all screen widths in all browsers

Tested on all screen heights in all browsers

Portrait orientation tested

Landscape orientation tested

Full screen browsers tested

All user interactions have been user tested

All different page layouts have been tested

Tested with a range of default font sizes:
2 bigger, 2 smaller

Tested with images disabled

Tested with CSS disabled

Standard resolution monitors tested

Retina resolution monitors tested

Tested in low-bandwidth situations

Tested with common ad blockers

MacOS

Windows

Linux

Android OS

iOS

Windows Phone

Blackberry OS

Symbian OS

Firefox, current version

Chrome, current version

Edge, current version

Opera, current version

Safari, current version

Safari, one version behind

Internet Explorer, 11

Opera Mini, current version

Chrome on Android, current version

iOS Safari, current version

iOS Safari, one version behind

Android browser, current version

Android browser, one version behind

Firefox Mobile (Android)

UC Browser

Yandex

Windows Phone IE

Kindle Browser, black & white e-ink

W3M, text only browser

Blackberry browser

Symbian browser, older Nokia phones