Brandwave

How popular isZefr?

In September 2026, people searched for Zefr by name about 2,400 times worldwide, a 17.2% decrease from the previous year. These searches made up 9.4% of all global brand safety platform searches, placing Zefr fifth out of six platforms. When we asked both ChatGPT and Google AI Overviews about brand safety platforms, Zefr appeared in four of the five answers and was the third most recommended of the six.

Search and AI answers in September 2026

Zefr is the fifth most searched of 6 competitors and the third most recommended in AI answers.

  1. DoubleVerifyShare of searches 31.6%Mentioned in 4 of 5 AI answersPlace in AI recommendations 2nd
  2. HUMAN SecurityShare of searches 25.8%Mentioned in 2 of 5 AI answersPlace in AI recommendations 4th
  3. Channel FactoryShare of searches 14.1%Mentioned in 2 of 5 AI answersPlace in AI recommendations 5th
  4. Integral Ad ScienceShare of searches 14.1%Mentioned in 5 of 5 AI answersPlace in AI recommendations 1st
  5. ZefrShare of searches 9.4%Mentioned in 4 of 5 AI answersPlace in AI recommendations 3rd

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Top brand safety platforms in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Zefr was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Zefr is the third most recommended of the six.

Most recommended by AI

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

  1. Integral Ad Science1st
  2. DoubleVerify2nd
  3. Zefr3rd
  4. HUMAN Security4th
  5. Channel Factory5th
  6. Pixalate6th

Mentioned by AI

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

  • Integral Ad Science5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • DoubleVerify4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Zefr4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • HUMAN Security2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Channel Factory2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Pixalate1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about brand safety platforms

5 answers

Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.

Which brand safety platforms compete with Zefr?

Zefr against brand safety platforms worldwide, by month

Share of searches by month for DoubleVerify, HUMAN Security, Channel Factory, Integral Ad Science, Zefr, Pixalate. The figures are in the table below the chart.

View monthly share of searches table
MonthDoubleVerifyHUMAN SecurityChannel FactoryIntegral Ad ScienceZefrPixalate
Oct 202533.1%22.2%12.1%18.1%7.9%6.6%
Nov 202530.8%25.3%13.7%16.8%7.5%5.9%
Dec 202532.6%21.8%11.7%17.7%9.7%6.4%
Jan 202631.8%21.2%14.1%17.4%9.3%6.1%
Feb 202632.3%21.6%14.4%17.6%7.8%6.2%
Mar 202631.8%21.2%14.1%17.4%9.3%6.1%
Apr 202632.3%21.6%14.4%17.6%7.8%6.2%
May 202634.7%23.2%12.6%15.4%8.4%5.6%
Jun 202636.3%19.8%13.2%16.1%8.8%5.9%
Jul 202636.3%19.8%13.2%16.1%8.8%5.9%
Aug 202645.9%20.5%9%13.7%5.9%5%
Sep 202631.6%25.8%14.1%14.1%9.4%5.1%

  1. 1.DoubleVerify

    31.6%

    Held 1st. 8.1K estimated branded searches, -45.3% vs prior month. Share -14.3 points.

  2. 2.HUMAN Security

    25.8%

    Held 2nd. 6.6K estimated branded searches, 0% vs prior month. Share +5.3 points.

  3. 3.Channel Factory

    14.1%

    Moved from 4th to 3rd. 3.6K estimated branded searches, +24.1% vs prior month. Share +5.1 points.

  4. 4.Integral Ad Science

    14.1%

    Moved from 3rd to 4th. 3.6K estimated branded searches, -18.2% vs prior month. Share +0.4 points.

  5. 5.Zefr

    9.4%

    Held 5th. 2.4K estimated branded searches, +26.3% vs prior month. Share +3.5 points.

  6. 6.Pixalate

    5.1%

    Held 6th. 1.3K estimated branded searches, -18.8% vs prior month. Share +0.1 points.

Compare popularity between Zefr and its closest rivals

Every comparison with Zefr

5 comparisons

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

3 findings
  • Across the 12 months ending September 2026, estimated monthly branded searches for Zefr worldwide fell from 2.9K to 2.4K.
  • Across the 12 months ending September 2026, Zefr’s share of searches among brand safety platforms worldwide increased from 7.9% to 9.4%.
  • Across the 12 months ending September 2026, Zefr’s share of searches among brand safety platforms worldwide peaked at 9.7% in December 2025 and was lowest at 5.9% in August 2026.

How did search popularity change for brand safety platforms worldwide in September 2026?

6 changes

  1. In September 2026, Channel Factory overtook Integral Ad Science to rank 3rd among brand safety platforms worldwide, with 14.1% of the searches.

  2. In September 2026, HUMAN Security gained share of searches among brand safety platforms worldwide, from 20.5% to 25.8%.

  3. In September 2026, Zefr gained share of searches among brand safety platforms worldwide, from 5.9% to 9.4%.

  4. In September 2026, DoubleVerify lost share of searches among brand safety platforms worldwide, from 45.9% to 31.6%.

  5. Estimated monthly branded searches for Pixalate worldwide fell 45.8% over 12 measured months, from 2.4K to 1.3K in September 2026.

  6. Estimated monthly branded searches for Integral Ad Science worldwide fell 45.5% over 12 measured months, from 6.6K to 3.6K in September 2026.

How are Zefr’s branded searches counted?

1 search term

Brandwave collects information about searches that people make online using Zefr’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.

  • zefr

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How the Brand Demand Index is measured

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