Brandwave

How popular isOPNsense?

In September 2026, people searched for OPNsense by name about 74,000 times worldwide, about the same as the previous year. These searches made up 23.5% of all global firewall brand searches, placing OPNsense second out of four brands. When we asked both ChatGPT and Google AI Overviews about firewall brands, OPNsense appeared in four of the five answers.

Search and AI answers in September 2026

OPNsense is the second most searched of 4 competitors.

  1. SucuriShare of searches 67%Mentioned in 1 of 5 AI answers
  2. OPNsenseShare of searches 23.5%Mentioned in 4 of 5 AI answers
  3. WordfenceShare of searches 8.1%Mentioned in 0 of 5 AI answers
  4. MalCareShare of searches 1.4%Mentioned in 0 of 5 AI answers
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Top firewall brands in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, OPNsense was mentioned in four out of five: in two of the three ChatGPT answers and in both Google AI Overviews.

Mentioned by AI

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

  • OPNsense4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Sucuri1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Wordfence0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • MalCare0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about firewall brands

5 answers

  • Asked ChatGPT

    “Which firewall should I use?”

    1. 1OPNsense

  • Asked ChatGPT

    “What are the best firewalls?”

    1. 1OPNsense

  • Asked ChatGPT

    “What's the best firewall for a website?”

    1. 1Sucuri

  • Searched Google, AI Overview

    “firewall software”

    1. 1OPNsense

  • Searched Google, AI Overview

    “best firewall”

    1. 1OPNsense

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.

Which firewall brands compete with OPNsense?

OPNsense against firewall brands worldwide, by month

Share of searches by month for Sucuri, OPNsense, Wordfence. The figures are in the table below the chart.

View monthly share of searches table
MonthSucuriOPNsenseWordfenceMalCare
Oct 202553.1%33.3%11.6%2%
Nov 202549.5%37.4%10.9%2.2%
Dec 202558.9%30.5%8.8%1.8%
Jan 202659%30.8%8.7%1.5%
Feb 202653.4%32.9%11.7%2%
Mar 202649.7%37.5%10.9%1.8%
Apr 202653.8%32.6%11.6%1.9%
May 202659.5%28.8%10%1.7%
Jun 202655.1%31.8%11.1%1.9%
Jul 202658.8%29.1%10.4%1.7%
Aug 202655.3%33.4%9.7%1.6%
Sep 202667%23.5%8.1%1.4%

  1. 1.Sucuri

    67%

    Held 1st. 211K estimated branded searches, +40.8% vs prior month. Share +11.7 points.

  2. 2.OPNsense

    23.5%

    Held 2nd. 74K estimated branded searches, -18.2% vs prior month. Share -9.9 points.

  3. 3.Wordfence

    8.1%

    Held 3rd. 25.6K estimated branded searches, -3% vs prior month. Share -1.6 points.

  4. 4.MalCare

    1.4%

    Held 4th. 4.4K estimated branded searches, 0% vs prior month. Share -0.2 points.

Compare popularity between OPNsense and its closest rivals

Every comparison with OPNsense

3 comparisons

How has branded search demand for OPNsense changed worldwide over the last 12 months?

3 findings
  • Across the 12 months ending September 2026, estimated monthly branded searches for OPNsense worldwide held steady at 74K.
  • Across the 12 months ending September 2026, OPNsense’s share of searches among firewall brands worldwide decreased from 33.3% to 23.5%.
  • Across the 12 months ending September 2026, OPNsense’s share of searches among firewall brands worldwide peaked at 37.5% in March 2026 and was lowest at 23.5% in September 2026.

How did search popularity change for firewall brands worldwide in September 2026?

3 changes

  1. In September 2026, Sucuri gained share of searches among firewall brands worldwide, from 55.3% to 67%.

  2. In September 2026, OPNsense lost share of searches among firewall brands worldwide, from 33.4% to 23.5%.

  3. In September 2026, Wordfence lost share of searches among firewall brands worldwide, from 9.7% to 8.1%.

How are OPNsense’s branded searches counted?

1 search term

Brandwave collects information about searches that people make online using OPNsense’s name. When viewed over time, estimated search volumes for this branded term can be used to understand whether interest in the brand is growing, holding steady, or fading.

  • opnsense

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How the Brand Demand Index is measured

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