Website visibility testing from China

Thumbnail Size	Thumbnail Interval	Comparison End Point
Small Medium Large	60 FPS 0.1 sec 0.5 sec 1 sec 5 sec	Visually Complete Last Change Document Complete Fully Loaded

Advanced Visual Comparison Configuration

There are additional customizations that can be done by modifying the tests parameter in the comparison URL directly.

URL structure: ...compare.php?tests=<Test 1 ID>,<Test 2 ID>...

The tests are displayed in the order listed and can be customized with options:

Custom label	-l:<label>	110606_MJ_RZEY-l:Original
Specific run	-r:<run>	110606_MJ_RZEY-r:3
Repeat view	-c:1	110606_MJ_RZEY-c:1
Specific step	-s:3	110606_MJ_RZEY-s:3
Specific End Time	-e:<seconds>	110606_MJ_RZEY-e:1.1

You can also customize the background and text color by passing HTML color values to bg and text query parameters.

Examples:

• Customizing labels: https://www.webpagetest.org/video/compare.php?tests=110606_MJ_RZEY-l:Original,110606_AE_RZN5-l:No+JS
• Compare First vs. Repeat view: https://www.webpagetest.org/video/compare.php?tests=110606_MJ_RZEY, 110606_MJ_RZEY-c:1
• Second step of first run vs. Second step of second run: https://www.webpagetest.org/video/compare.php?tests=110606_MJ_RZEY-r:1-s:2,110606_MJ_RZEY-r:2-s:2
• White background with black text: https://www.webpagetest.org/video/compare.php?tests=110606_MJ_RZEY, 110606_MJ_RZEY-c:1&bg=ffffff&text=000000