Freestar is a mid-tier advertising network that currently names 666 sites in its published seller file. Its largest category is Sports. The median site scores 50 for authority, which is the level a new applicant is usually measured against.
666
Sites on this network
50
Median authority
Sports
Largest niche
Mid
Tier
Which sites use Freestar?
The table below is every site we currently detect on Freestar, ordered by authority so the strongest inventory is at the top. “Also uses” shows the other networks running on the same domain, which is the quickest way to see whether a publisher treats Freestar as its primary partner or one line in a stack. First seen is the date the site first appeared in the network’s own seller file, so a 2023 date is a long-standing relationship rather than a recent test.
We currently detect 666 live sites on Freestar. The figure moves nightly as the network publishes an updated seller file — sites are added when they first appear in it and retired when they have been absent for several consecutive runs.
Can I run Freestar alongside another network?
Yes, and most publishers do. Of the sites listed here, the "Also uses" column shows how many carry a second or third network on the same pages. Check that network's own terms for exclusivity before stacking.
Which niches does Freestar monetise best?
Its largest category by site count is Sports. The niche panel above lists the full mix, which is a better guide to what the network actually buys than its marketing copy.
How do you know a site uses Freestar?
From the network's published sellers.json file — the industry-standard record naming every publisher it is authorised to sell inventory for. That means a listing is the network's own declaration, not an inference from scanning pages.
How often is this list rebuilt?
Nightly. Seller files are re-fetched, differences recorded with a first-seen and last-seen date, and the site rebuilt. The most recent build finished 2026-07-28.