A domain appears in the Mainstream column if it is on our published list of major platforms and outlets. The list is built from sites that share these traits:
Examples: major newspapers and broadcasters, the big tech platforms, large commerce and entertainment sites, and official health institutions.
Everything else. That's the whole rule.
If a domain is not on the mainstream list, it appears in the Independent column — personal blogs, small publications, newsletters, niche communities, regional outlets, academic pages, and the long tail of the web that major-platform-first ranking usually buries.
On the published list of major platforms and outlets. Roughly 160 domains.
Every other domain on the web. No curation, no picking, no endorsement.
Mechanical classification means the Independent column contains the full range of the non-corporate web — brilliant primary sources, passionate hobbyists, and yes, sites with poor information. We do not filter the Independent column by quality, because doing so would require exactly the kind of editorial gatekeeping NeutralSpace exists to avoid. Read independently; think critically. That is the deal.
The mainstream domain list is published in our open-source backend repository on GitHub. If you believe a domain is misclassified — a corporate giant we missed, or a small site wrongly listed as mainstream — open an issue there and we will review it. Changes are made by humans and logged in the commit history for anyone to audit.