Brandwave

Horizon3.ai vs Tenable:Which is more popular?

In September 2026, Tenable had more branded searches than Horizon3.ai among penetration testing platforms worldwide. Tenable had about 49,500 branded searches, while Horizon3.ai had 9,390. Tenable made up 4.9% of all penetration testing platform searches we track, and Horizon3.ai accounted for 0.92%. When we asked ChatGPT and Google AI Overviews about penetration testing platforms, Tenable appeared in three of the five answers and Horizon3.ai in two. Tenable was mentioned before Horizon3.ai in three out of four answers that named either.

Among penetration testing platforms worldwide in September 2026

Who do people search for more?

Tenable, about 5 searches for every 1 for Horizon3.ai

Tenable 49.5K searchesHorizon3.ai 9.4K searches

Who does AI mention more?

Tenable, mentioned in 3 of 5 answers, Horizon3.ai in 2

Tenable in 3 of 5Horizon3.ai in 2 of 5

Who does AI recommend more?

Tenable, named ahead of Horizon3.ai in 3 of 4 answers

Tenable first in 3Horizon3.ai first in 1

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Top penetration testing platforms in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Tenable was mentioned in three out of five: in two of the three ChatGPT answers and in one of the two Google AI Overviews. Horizon3.ai was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. Tenable was listed before Horizon3.ai in three out of four answers that named either.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Burp Suite1st
  2. Kali Linux2nd
  3. Metasploit3rd
  4. ZAP4th
  5. Tenable5th
  6. Nmap6th
  7. Horizon3.ai7th
  8. Pentera8th
  9. Intruder9th
  10. Cobalt10th
  11. +1 more

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Burp Suite5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • ZAP5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Metasploit4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Kali Linux3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Nmap3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Tenable3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Pentera2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Horizon3.ai2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Cobalt1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Intruder1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers

+1 more

See every answer about penetration testing platforms

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.

Is Horizon3.ai or Tenable more popular in search?

This chart shows how often people search Google for Horizon3.ai and Tenable by name. Each line represents a brand's share of searches for all 11 penetration testing platforms we track, month by month, from English-language searches worldwide.

Horizon3.ai and Tenable among penetration testing platforms worldwide, by month

Share of searches by month for Tenable, Horizon3.ai. The figures are in the table below the chart.

View monthly share of searches table
MonthKali LinuxNmapBurp SuiteZAPTenableMetasploitPenteraHorizon3.aiAstra SecurityCobaltIntruder
Oct 202555.2%16.5%11.1%4.3%6.1%5%1%0.41%0.24%0.2%0.06%
Nov 202552.1%15.6%12.8%5%7%5.7%0.96%0.39%0.27%0.18%0.05%
Dec 202553.9%16.2%13.2%4.2%5.9%4.9%0.81%0.35%0.28%0.14%0.05%
Jan 202653.6%16.1%13.2%4.2%5.9%4.8%1.2%0.43%0.28%0.16%0.05%
Feb 202653.8%16.1%13.2%4.2%5.9%4.8%1%0.43%0.28%0.15%0.05%
Mar 202651.3%18.7%12.6%4.9%5.6%4.6%1.2%0.55%0.34%0.15%0.06%
Apr 202653.2%15.9%13%5%5.8%4.8%1%0.64%0.35%0.17%0.05%
May 202648.7%17.8%14.6%4.6%6.5%5.4%1.1%0.72%0.39%0.16%0.06%
Jun 202652.3%15.7%12.8%6%5.8%4.7%1.2%0.87%0.42%0.18%0.06%
Jul 202651.1%18.7%12.5%4.8%5.6%4.6%1.2%0.85%0.41%0.17%0.05%
Aug 202656%16.8%11.2%4.3%5%4.1%1%0.88%0.37%0.15%0.04%
Sep 202654.1%16.2%13.3%5.1%4.9%4%1%0.92%0.35%0.16%0.04%

How has the Horizon3.ai and Tenable comparison changed over the last 12 months?

3 findings

How did search popularity change for penetration testing platforms worldwide in September 2026?

3 changes

  1. In September 2026, ZAP overtook Tenable to rank 4th among penetration testing platforms worldwide, with 5.1% of the searches.

  2. Tenable’s share of searches among penetration testing platforms worldwide has lost ground for 3 months in a row, from 5.8% to 4.9% in September 2026.

  3. Estimated monthly branded searches for Horizon3.ai worldwide rose 90.1% over 12 measured months, from 4.9K to 9.4K in September 2026.

How are branded searches counted?

6 search terms

Brandwave collects information about searches that people make online using Horizon3.ai’s and Tenable’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

Horizon3.ai

5 branded search terms

  • horizon 3 ai
  • horizon3 ai
  • horizon3 nodezero
  • horizon3.ai
  • nodezero

Tenable

1 branded search term

  • nessus

How the Brand Demand Index is measured

Other head-to-heads among penetration testing platforms

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