Market size and traffic share

See who really owns your market's attention

Find every rival competing for your buyers, from the obvious ones to the sites you keep losing to on Google. Size up the field with search results, Semrush data and AI discovery in one workspace.

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  • Free to start
  • Use your own AI key
  • No credit card
Share of search Example
CompetitorTypeTop 10 results
Northwind Direct 38%
Brightlane Search 24%
Your brand You 11%
InsightBrightlane wins twice your search results on your top keywords.

Example project with made-up companies

Research across

  • Google
  • Meta
  • Instagram
  • LinkedIn
  • YouTube
  • X
  • TikTok
  • ChatGPT
  • Claude
  • Cursor
  • Semrush

The problem

Sound familiar?

A market size from nowhere

Your market slide quotes a report nobody has opened since the pitch.

Rivals you never listed

The company stealing your buyers is not on your list. It is the blog ranking above you.

Data that never joins up

Traffic in one tool, keywords in another, and no single view of who is winning.

What you get

How CompetitionOS helps

Search result discovery

See which companies own the Google results for your keywords, using your SerpApi key.

Semrush built in

Bring your Semrush key to pull organic competitors and keyword overlap into the project.

Every kind of rival

Product, search and indirect competitors are tagged, so a content rival never hides.

AI market scan

AI discovery suggests competitors you missed, for your category and country.

How it works

From blank page to clear answer in three steps

  1. Tell us your brand and market

    Add your website, category, keywords and the country you sell in.

  2. Let AI and search find your rivals

    AI discovery and search results build your competitor list, tagged as direct, indirect or search rivals.

  3. Read the real field

    See who competes for the same buyers in search and in your category, and where you rank among them.

Why switch

The usual way, and the CompetitionOS way

Topic The usual waySimilarweb, Statista, Semrush, Analyst reports CompetitionOSOne workspace
Who counts as a rival Whoever you already know Product, search and AI rivals, found for you
One market view Export three tools, merge in Sheets One project with every source together
Search data Another login to manage Your Semrush key, used inside the project
What happens next A static report Ask your AI assistant what to do about it
12 kinds of competitor research
2 AI assistants checked for your brand
0 sales calls to get started

One workspace

Twelve ways to see the competition. One project.

Market share sits next to every other kind of research, so the full picture is always one click away.

Questions

Good questions, straight answers

Prefer to do it by hand?Read the free guide: Market size and traffic share analysis
Does CompetitionOS estimate my total market size?

It maps the competitive field: who competes for your buyers in search, in AI answers and in your category. Pair it with your own market size model; our free guide shows how.

Do I need a Semrush account?

No. AI discovery works with just your OpenAI or Anthropic key. Add Semrush or SerpApi keys when you want search data too.

Do I need a credit card?

No. Create a free account, add your own OpenAI or Anthropic key, and start your first project in minutes.

Your competitors are not waiting. Neither should you.

Start a project, and see your first competitor list in minutes.

Read the free guides Start your first project