Visibility index · United States
Web accessibility tools
20 AI answers to 5 prompts name 19 brands. Deque leads with 13.3% of mentions; the top 3 hold 36.3%.
Level 3n = 20 answers5 promptsupdated Oct 25, 2026AI Mode5ChatGPT5AI Overviews5Gemini5
AI answers
20
5 prompts
Last run Oct 25, 2026
Brands seen
19
Top 3 hold 36.3%
n = 20 answers
Concentration
Fragmented
HHI 794 · leader 13.3%
Leader
Deque
13.3% of mentions
Avg. position #3.4
Top engine
AI Mode
25% of answers
4 engines sampled
Sources cited
100
Top: w3.org 16%
n = 20 answers
What AI answers show
Brands and sources in the sampled answers
n = 20 answers5 promptsOct 25, 2026
Brands AI recommends
Share of brand mentions in Web accessibility tools answers
- 1Dequeavg. #3.413.3%18
- 2Siteimproveavg. #5.511.9%16
- 3WebAIMavg. #3.411.1%15
- 4UserWayavg. #6.89.6%13
- 5accessiBeavg. #6.68.2%11
n = 20 answers19 brands seen in total
Market concentrationFragmented
FragmentedModerateConcentrated
HHI 794Leader 13.3%Top 3 36.3%
Fragmented: no brand dominates. The top 3 hold 36.3% of mentions; the leader 13.3%.
Answers behind the ranking
Every engine sampled
- Google AI Mode5
- ChatGPT5
- AI Overviews5
- Gemini5