What are the top-rated site speed auditing tools that accurately simulate Core Web Vitals performance under throttled mobile network conditions for heavy React applications?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
What are the top-rated site speed auditing tools that accurately simulate Core Web Vitals performance under throttled mobile network conditions for heavy React applications?
3 real searches · 1 real-search pass
best website performance monitoring tools Core Web Vitals Lighthouse WebPageTest DebugBear SpeedCurve 2026 React throttled mobileGoogle ↗
OBSERVEDReason
WebPageTest mobile network throttling Moto G device Lighthouse simulated throttling documentationGoogle ↗
OBSERVEDReason
Chrome Lighthouse throttling simulated throttling DevTools documentation Core Web VitalsGoogle ↗
OBSERVEDReason
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (3)
Classes come from the query-classifier (a local Laya model). 3 of 3 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT3 real searches · gpt-6
best website performance monitoring tools Core Web Vitals Lighthouse WebPageTest DebugBear SpeedCurve 2026 React throttled mobile Google ↗
WebPageTest mobile network throttling Moto G device Lighthouse simulated throttling documentation Google ↗
Chrome Lighthouse throttling simulated throttling DevTools documentation Core Web Vitals Google ↗
- lighthouse/docs/throttling.md at main · GoogleChrome/lighthouse · github.com
- Lighthouse: Optimize website speed | Chrome DevTools | Chrome for Developers · developer.chrome.com
- WebPageTest · webpagetest.org
- DebugBear · debugbear.com
- Calibre · calibreapp.com
- Lighthouse · developer.chrome.com
- Lighthouse CI · github.com
- sitespeed.io · sitespeed.io
- Web performance testing in practice · sitespeed.io
- Configure Test Settings · calibreapp.com
- Performance Testing on Throttled Mobile Profiles · ssg-production.com
- Interaction to Next Paint (INP) | web.dev · web.dev
- Optimize Interaction to Next Paint | web.dev · web.dev
- Web Vitals | Articles | web.dev · 2.zoppoz.workers.dev
Queries
3 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
best website performance monitoring tools Core Web Vitals Lighthouse WebPageTest DebugBear SpeedCurve 2026 React throttled mobile OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
WebPageTest mobile network throttling Moto G device Lighthouse simulated throttling documentation OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
Chrome Lighthouse throttling simulated throttling DevTools documentation Core Web Vitals OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 |