Find Out How Much Traffic a Website Gets

Short answer: You cannot see another site's exact traffic, but tools like Similarweb, Semrush, and Ahrefs give solid estimates. I check two or three of them, compare the numbers, and treat the range as a ballpark rather than a fact.

When I size up a competitor, the first thing I want is a rough idea of how many visitors they pull and where those visitors come from. No third party can read another company's analytics, so every estimate is modelled from clickstream panels, search data, and public signals. The trick is knowing which tools are trustworthy today and how to read what they show.

Which tools actually work in 2026?

A note first: several old favourites are gone. Alexa was shut down by Amazon, Compete closed years ago, and Google's Ad Planner and Trends for Websites were discontinued. Ignore any guide still recommending them. Here is what I use now.

Similarweb

My default starting point. Enter a domain at similarweb.com and the free view shows estimated monthly visits, traffic trend, top countries, the traffic channel mix (direct, search, social, referral, paid), top keywords, and audience interests. It is strongest for larger sites; small sites often show "not enough data."

Semrush

Best for the search side. Semrush estimates organic traffic, the keywords a site ranks for, and how visibility has moved over time. Its Traffic Analytics add-on also models total visits across channels.

Ahrefs

Ahrefs has a free traffic checker for organic estimates and one of the strongest backlink databases, which tells you who is sending referral traffic.

How do I read the estimates without fooling myself?

Metric	What it tells you	Watch out for
Monthly visits	Overall scale of the site	Modelled, not measured; can be off by a wide margin on small sites.
Traffic channels	Whether growth is from search, social, or paid	A heavy paid share means traffic could vanish if the budget stops.
Top countries	Where the audience lives	Some tools skew toward US and European panel data.
Organic keywords	What the site ranks for	Estimated click share, not real clicks.

What are the real limits of these numbers?

Every estimate is a model. Accuracy improves with a site's size, so a major publisher's numbers will be far closer to reality than a niche blog's. Different tools use different panels, so it is normal for Similarweb and Semrush to disagree by a factor of two or more. Treat any single figure with suspicion and look at the trend and the relative comparison between competitors, which is usually more reliable than the absolute count.

What is the tip most guides miss?

If a site runs Google display or programmatic ads, open Google Keyword Planner or the display planning tools inside a Google Ads account and search the domain as a placement. You need an account but not an active campaign, and you get impression volume Google itself has recorded for that site, which is grounded in real ad-serving data rather than a panel. Cross-checking that against Similarweb tightens my estimate considerably.

Frequently asked questions

Is Alexa still available for checking traffic?

No. Amazon retired Alexa.com in 2022. Use Similarweb, Semrush, or Ahrefs instead, since any guide pointing to Alexa is out of date.

How accurate are website traffic estimators?

They are modelled approximations, most accurate for large sites and least accurate for small ones. Estimates from different tools often differ by a factor of two or more, so compare several and focus on trends.

Can I see a competitor's exact visitor count?

Only the site owner sees exact analytics. Everyone else relies on estimates built from panels, clickstream, and search data, which cannot reproduce the true number.

Are the free tiers enough for competitive research?

For a rough picture, yes. Free views from Similarweb, Semrush, and Ahrefs give scale, channels, and top keywords. Paid plans unlock deeper history, demographics, and full keyword lists.