Visibility index · Spain
Antivirus software
20 AI answers to 5 prompts name 10 brands. Bitdefender leads with 22.8% of mentions; the top 3 hold 62%.
Level 3n = 20 answers5 promptsupdated Oct 19, 2026AI Mode5ChatGPT5AI Overviews5Gemini5
AI answers
20
5 prompts
Last run Oct 19, 2026
Brands seen
10
Top 3 hold 62%
n = 20 answers
Concentration
Moderate
HHI 1,559 · leader 22.8%
Leader
Bitdefender
22.8% of mentions
Avg. position #1.9
Top engine
AI Mode
25% of answers
4 engines sampled
Sources cited
65
Top: av-test.org 16.9%
n = 20 answers
What AI answers show
Brands and sources in the sampled answers
n = 20 answers5 promptsOct 19, 2026
Brands AI recommends
Share of brand mentions in Antivirus software answers
- 1Bitdefenderavg. #1.922.8%18
- 2Microsoft Defenderavg. #3.821.5%17
- 3Nortonavg. #3.417.7%14
- 4ESETavg. #4.111.4%9
- 5Kasperskyavg. #4.87.6%6
n = 20 answers10 brands seen in total
Market concentrationModerate
FragmentedModerateConcentrated
HHI 1,559Leader 22.8%Top 3 62%
Moderately concentrated: the top 3 hold 62% of mentions; the leader 22.8%.
Answers behind the ranking
Every engine sampled
- Google AI Mode5
- ChatGPT5
- AI Overviews5
- Gemini5
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