WebPageTest Pro Experiment Results

Experiment

ExperimentSettings: Desktopv105CableVirginia USA
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- First View only
- Test runs: 3
- Connectivity: 5000/1000 Kbps, 28ms Latency
- Custom Metrics
Experiment Info:
- Mimic Pre-rendered HTML
  
  This experiment mimics server-generated HTML by swapping the initial HTML with the fully rendered HTML from this test run. Note: this will very likely break site behavior, but is potentially useful for comparing early metrics and assessing whether moving logic to the server is worth the effort.
  Assets/Instructions:
  220725_BiDcVT_C1B
- Disable Scripts
  
  This experiment makes all scripts (inline and external) unrecognizable as javascript by the browser in order to demonstrate whether the site will still be usable if JavaScript fails to properly run.
  Assets/Instructions:
Related Links: Original (Control Run), Original Test
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Experiment Results

Experiments Applied:

Mimic Pre-rendered HTML
This experiment mimics server-generated HTML by swapping the initial HTML with the fully rendered HTML from this test run. Note: this will very likely break site behavior, but is potentially useful for comparing early metrics and assessing whether moving logic to the server is worth the effort.
Assets/Instructions:
- 220725_BiDcVT_C1B
Disable Scripts
This experiment makes all scripts (inline and external) unrecognizable as javascript by the browser in order to demonstrate whether the site will still be usable if JavaScript fails to properly run.
Assets/Instructions:
Experiment More

Links:

Experiment Impact (Notable changes between experiment and control)

Start Render	First Contentful Paint	Speed Index	Largest Contentful Paint	Cumulative Layout Shift	Total Blocking Time	Page Weight	Blocking Requests
0.03sSlowerExperiment:0.71sControl:0.68s	0.15sSlowerExperiment:0.76sControl:0.61s	3.42sFasterExperiment:1.53sControl:4.95s	4.43sFasterExperiment:1.39sControl:5.82s	0.021WorseExperiment:0.021Control:0	0.71sFasterExperiment:0.29sControl:1s	867KBLighterExperiment:2832KBControl:3699KB	4MoreExperiment:7Control:3

Note: The metric comparisons above exclude differences in response time that exist between the median experiment and control runs of this experiment. View this comparison with TTFB differences included.

Remaining Opportunities

Here's how your overall opportunities look after this experiment:

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Is it Quick? Not bad...

This site took little time to connect and deliver initial code. It began rendering content with little delay. There were no render-blocking requests. The largest content rendered a little late.

Opportunities 7
Tips 7
Pro Experiments 8

Is it Usable? Needs Improvement.

This site had minor layout shifts. It took little time to become interactive. It had 3 accessibility issues, 1 critical. HTML content was mostly generated server-side.

Opportunities 3
Tips 3
Pro Experiments 3

Is it Resilient? Looks great!

This site had no render-blocking 3rd party requests that could be a single point of failure. It had no security issues. HTML content was mostly generated server-side.

Opportunities 0
Tips 0
Pro Experiments 0

Custom label	-l:<label>	220916_BiDcN0_B3S-l:Original
Specific run	-r:<run>	220916_BiDcN0_B3S-r:3
Repeat view	-c:1	220916_BiDcN0_B3S-c:1
Specific step	-s:3	220916_BiDcN0_B3S-s:3
Specific End Time	-e:<seconds>	220916_BiDcN0_B3S-e:1.1

Experiment

Assets/Instructions:

Assets/Instructions:

Experiment Results

Assets/Instructions:

Assets/Instructions:

Experiment Impact (Notable changes between experiment and control)

Remaining Opportunities

Is it Quick? Not bad...

Is it Usable? Needs Improvement.

Is it Resilient? Looks great!

Filmstrip Comparison (Experiment vs. Control)

Advanced Visual Comparison Configuration

Filmstrip key: