What is domain popularity?

Domain popularity is how much real-world usage a domain gets — how many people (or machines) visit, resolve, or otherwise touch it. It's the construct behind "top websites" lists, and it's what the webrank number measures: rank 1 is the most popular domain on the web, rank 146,000,000 the least.

How popularity is actually measured

Nobody sees the whole internet, so every source measures a proxy:

Browser telemetry (Chrome UX Report): which sites real users actually load. Closest to

human traffic, but only covers sites with enough Chrome visitors.

DNS resolver logs (Cisco Umbrella, Cloudflare Radar): every lookup, human or not. Huge

signal, but CDNs, trackers, and API endpoints rank as "popular" without any person visiting.

Composite lists (Tranco): averages of other lists.
Web+DNS crawl data (host.io): breadth of hosting/DNS footprint.

Each proxy has blind spots, which is why webrank combines eight of them, weighted by how well each agrees with real user traffic — not equally. The weighting method and its validation (+46% over equal weights at predicting held-out real traffic) are on the methodology page.

Popularity is NOT authority

The two are correlated but genuinely different — and the difference is informative:

googletagmanager.com gets astronomical traffic (it's embedded everywhere) but few sites

link to it: high popularity, modest authority.

gmpg.org (webrank ~2,553) sits in millions of WordPress headers as a link: **its

authority is far above what its visits justify**.

That's why every webrank response carries two numbers: webrank (popularity) and

pagerank (authority). A CDN backend and a beloved website can have the same traffic; they never have the same link profile.

Look it up

curl https://api.webrank.top/rank/yourdomain.com