Using Advertiser Activity

See Who’s Advertising, Where, and How Intensely

The Advertiser Activity page gives you a complete view of how any company invests across digital advertising channels. Want to understand how a brand allocates spend or spot when a competitor ramps up new campaigns? In seconds, you’ll see their ad volume trends, top publishers, and campaign bursts, helping you identify gaps, time your own launches better, and uncover new opportunities to reach your audience.

This is your unified home for understanding advertiser strategy across Search, Display, and soon Social, all in one place.

What's the Value? 

The Advertiser Activity Overview helps you understand a company’s cross-channel ad strategy and campaign performance.

Use it to:

Performance Teams

  • Compare spend, visits, and impressions across channels
  • Monitor how campaign performance evolves over time

Planning & Creative Teams

  • Identify top-performing creatives and publishers
  • Strengthen media plans and improve messaging

Agencies & Publishers

  • Benchmark competitors
  • Justify budgets
  • Identify high-performing ad partners

How to Find and Use

  1. Go to Ad Intelligence → Advertiser Activity
  2. Click Overview
  3. Enter any domain
  4. Explore Search, Display, and Social for deeper dives
     

Key Metrics and Insights

Tracked Activity Estimates (Metrics Breakdown)

Metrics: Spend, Impressions, Visits

Use this to:

  • See which channels drive the most paid activity
  • Compare advertiser investment patterns across Search and Display
  • Identify shifts in strategy when Spend, Impressions, or Visits go up or down

  Tip: Tracked Activity Estimates are built using Similarweb’s multi-source Ad Intelligence data engine, which combines signals from publishers, contributory networks, industry partners, and proprietary traffic models. This gives you a dependable view of the advertising activity we can observe, but it’s important to note that these reflect tracked activity, not an advertiser’s total media spend.


Tracked activity

Performance Over Time

  • Displays trends for Display and Search channels.
  • Metrics: Spend, Impressions, Visits
  • Granularity: Daily, Weekly (default), Monthly

    Performance Over Time

Performance by Country

  • Global map showing channel-level performance (Spend, Impressions, Visits) by country.
  • Table sorted by rank in descending order.

Performance by Country

Display Campaigns

  • Table of all display campaigns in the selected period.
  • Columns: Campaign Name, Landing Page (clickable), Number of Ads, Duration, First Seen, Last Seen
    Use this to: Explore campaigns and landing pages for display advertising.
    Display Campaigns

Search Campaigns

  • Table of all search campaigns in the selected period.
  • Columns: Campaign Name (or “–”), Landing Page, Number of Ads, Period (Month/Year)

Use this to: Explore search campaigns and landing pages.


Search Campaigns
 

FAQ: 

What can I do in the Advertiser Activity Overview?

This is your go-to place to see how a company spends across Search, Display, and Social. Track campaigns, monitor spend, spot trends, and understand how your brand compares to competitors, all in one view.

What are Tracked Activity Estimates?

These show spend, impressions, and visits for a domain based on sampled signals from publishers and networks. They give you a reliable snapshot of performance trends, but aren’t total spend figures.

Can I compare channels directly in this view?

Yes, the Advertiser Activity page is specifically designed to help you compare Spend, Impressions, and Visits across channels in one place, so you can understand how an advertiser allocates their paid efforts.

Where do the campaign lists come from?

Display campaign data comes from publisher placements we track across the web.
Search campaign data is based on Search landing pages and associated ads.
Both datasets are updated continuously as new creatives appear.

How often is the data updated?

Campaigns, creatives, impressions, spend estimates, and publisher signals are updated daily through Similarweb’s Ad Intelligence data engine. 


 

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