AI website speed rankings: Week 21, 2026
Compare AI product websites using finalized mobile Lighthouse lab measurements for May 18, 2026–May 24, 2026. This weekly archive preserves the recorded scores, loading metrics and measurement methodology.
Finalized measurement week · Week 21, 2026– UTC
- Measured products
- 15eligible in this edition
- Average score
- 61visible leaderboard
- Lowest load time
- 2.10 slower is faster
- Week ended
- May 24, 2026Sunday, UTC
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This board compares website performance. The directory page is the place to discover every AI product and its features.
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2026-W21 final standings
This archive preserves the latest imported mobile Lighthouse observation for each product in the week. Paid plans and Featured placements never change rank.
2026-W21 · mobile
Updated
This finalized board ranks 15 products for 2026-W21. Flux Kontext AI finished first with a Performance Score of 93.
- #014
- Load time
- 2.10 s
- LCP
- 2.10 s
- CLS
- 0.000
- TTFB
- Not available
- TBT
- 240 ms
Performance93 - #024
- Load time
- 3.13 s
- LCP
- 3.13 s
- CLS
- 0.000
- TTFB
- Not available
- TBT
- 421 ms
Performance83 - #03Held
- Load time
- 3.93 s
- LCP
- 3.93 s
- CLS
- 0.000
- TTFB
- Not available
- TBT
- 218 ms
Performance79 - #042
- Load time
- 2.93 s
- LCP
- 2.93 s
- CLS
- 0.005
- TTFB
- Not available
- TBT
- 649 ms
Performance78 - #053
- Load time
- 3.38 s
- LCP
- 3.38 s
- CLS
- 0.014
- TTFB
- Not available
- TBT
- 772 ms
Performance69 - #065
- Load time
- 6.58 s
- LCP
- 6.58 s
- CLS
- 0.000
- TTFB
- Not available
- TBT
- 275 ms
Performance64 - #072
- Load time
- 7.32 s
- LCP
- 7.32 s
- CLS
- 0.019
- TTFB
- Not available
- TBT
- 305 ms
Performance61 - #081
Cutline
AI- Load time
- 7.49 s
- LCP
- 7.49 s
- CLS
- 0.000
- TTFB
- Not available
- TBT
- 547 ms
Performance58 - #091
- Load time
- 8.37 s
- LCP
- 8.37 s
- CLS
- 0.000
- TTFB
- Not available
- TBT
- 30 ms
Performance58 - #103
- Load time
- 3.04 s
- LCP
- 3.04 s
- CLS
- 0.007
- TTFB
- Not available
- TBT
- 1.93 s
Performance56 - #11Held
- Load time
- 11.10 s
- LCP
- 11.10 s
- CLS
- 0.011
- TTFB
- Not available
- TBT
- 553 ms
Performance50 - #128
- Load time
- 5.25 s
- LCP
- 5.25 s
- CLS
- 0.109
- TTFB
- Not available
- TBT
- 1.96 s
Performance42 - #132
- Load time
- 17.30 s
- LCP
- 17.30 s
- CLS
- 0.000
- TTFB
- Not available
- TBT
- 545 ms
Performance42 - #14Held
- Load time
- 8.34 s
- LCP
- 8.34 s
- CLS
- 0.000
- TTFB
- Not available
- TBT
- 1.00 s
Performance40 - #153
- Load time
- 15.51 s
- LCP
- 15.51 s
- CLS
- 0.031
- TTFB
- Not available
- TBT
- 1.92 s
Performance39
How IndieTools Speed ranking works
This consolidated archive ranks the latest complete mobile Lighthouse observation retained for each eligible product in that ISO week. Stored scores and metrics are never fabricated or rewritten.
Performance Score ranks first. Ties are resolved by load time, LCP, CLS, TTFB and a stable identity key, in that order. Paid plans and Featured placements never affect rank.
Rankings refresh each ISO week from Monday 00:00 UTC. Finalized weekly results and awards remain permanently attached to their original evidence. This edition is marked as a legacy import in every machine-readable response.
Methodology legacy-mobile-lighthouse-v1 · ranking speed-ranking-v1