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Domain popularity ranking · New list daily

Tranco

A research-grade ranking of the top million domains, built to resist manipulation, used here as the all-traffic signal.

Run by
KU Leuven, TU Delft and Stony Brook University
Since
2018
We refresh it
New list daily

What Tranco is

Tranco is an academic project that combines several independent top-sites lists, among them Cloudflare Radar, Cisco Umbrella, Majestic and Farsight, into one daily ranking of the most popular million domains on the internet. It was introduced in a peer-reviewed paper at the Network and Distributed System Security Symposium in 2019, written precisely because the single-provider lists researchers had been using were unstable and easy to game.

It matters here because it counts all traffic, not only search. A site with a large app audience, heavy advertising or a direct following shows up on Tranco even when its search footprint is small.

Why we rely on it

  • It is maintained by university researchers and documented in a peer-reviewed paper, with the method published rather than described in marketing copy.
  • It was explicitly hardened against manipulation: it averages several sources over a window, so one day of artificial traffic to one provider does not move a domain far.
  • Every daily list has a permanent identifier and stays downloadable, so a rank we quote can be checked against the exact list it came from.
  • It is the ranking of choice in academic security and web-measurement research, which is a harder audience than the marketing industry.
  • Anyone can query a domain's rank history through the public API, so a figure on this site can be verified in a few seconds.

What we take from it

All-traffic rank
Each site's position among every domain on the internet, shown on its profile and in the comparison tables.
Rank history
The daily movement over the last month, shown as a chart on brand pages and as the 30-day change on the sites list.
The tiebreaker in our ranking
Below the editor's pick, sites with no tracked Google position for the category's own search are ordered by their Tranco rank.
Who gets tracked at all
A place in the top million is one of the two ways a site qualifies for coverage here, which is how we keep brand-new sites with no audience out of the ranking.

What it cannot tell us

  • It is a rank, not a visit count. We never convert a Tranco position into visitors.
  • It covers the top million domains only. A smaller site is simply absent, which is not the same as having no users.
  • It measures the domain, so a brand that lives mostly inside an app store or a Telegram bot is underrepresented.

Where you will see it on this site

Cited as Tranco, with the month it covers, on:

The source itself

This is the only page on the site that links out to Tranco. Everywhere else, a citation links here instead, so the context travels with the number.

Visit tranco-list.eu →

The other sources

Written by Hunter Gray, Founder, Owner & Writer. Top AI Girlfriends is not affiliated with Tranco. How all the sources fit together is on the methodology page; the data in use is on the best AI girlfriend ranking.