Clickstream Data
Clickstream data is a record of the pages people visit and the links they click as they move around the web. SEO tools like Semrush get it from third-party panels of real but anonymized internet users, then use it to estimate traffic for websites they can't see inside. That's how you can look up a competitor's visits.
Source: Semrush Knowledge Base, How Semrush Turns Traffic Data Into Traffic Intelligence, checked October 29, 2026
What Clickstream Data means for your business
Your own analytics, like Google Analytics, is clickstream data for your own site. Panel data covers the wider web but only the people in the panel, so every number built from it is an estimate. Semrush's help pages say its traffic numbers may not match your Google Analytics, and suggest your own analytics for your own site.
Some well-known search studies use panel data too. SparkToro's 2024 study of Google searches that end without a click used a clickstream panel from Datos, a Semrush company.
We'd use a competitor's estimated traffic to spot a trend, like visits climbing over a few months, and never as a count. For your own business, your analytics, calls and bookings come first.
If you're trying to sort real counts from estimates, what we track and where each number comes from names the source for every one.
Last reviewed October 29, 2026. All terms
How AI answers it today
On October 29, 2026, Google's AI Overview defined it as a record of what someone does on one website or app, citing analytics vendors and YouTube. ChatGPT answered much the same with no sources; neither mentioned the panels SEO tools use.
Our run through ChatGPT and Google's AI Overview, October 29, 2026. A sample, not what every buyer sees.
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