Visibility index · United States
Antivirus software
14 AI answers to 5 prompts name 10 brands. Norton leads with 22% of mentions; the top 3 hold 57.6%.
Level 3n = 14 answers5 promptsupdated Oct 19, 2026AI Mode4ChatGPT3AI Overviews2Gemini5
AI answers
14
5 prompts
Last run Oct 19, 2026
Brands seen
10
Top 3 hold 57.6%
n = 14 answers
Concentration
Fragmented
HHI 1,485 · leader 22%
Leader
Norton
22% of mentions
Avg. position #2.7
Top engine
Gemini
35.7% of answers
4 engines sampled
Sources cited
64
Top: pcmag.com 28.1%
n = 14 answers
What AI answers show
Brands and sources in the sampled answers
n = 14 answers5 promptsOct 19, 2026
Brands AI recommends
Share of brand mentions in Antivirus software answers
- 1Nortonavg. #2.722%13
- 2Bitdefenderavg. #1.822%13
- 3Microsoft Defenderavg. #4.013.6%8
- 4McAfeeavg. #5.411.9%7
- 5Malwarebytesavg. #4.910.2%6
n = 14 answers10 brands seen in total
Market concentrationFragmented
FragmentedModerateConcentrated
HHI 1,485Leader 22%Top 3 57.6%
Fragmented: no brand dominates. The top 3 hold 57.6% of mentions; the leader 22%.
Answers behind the ranking
Every engine sampled
- Google AI Mode4
- ChatGPT3
- AI Overviews2
- Gemini5
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