Trust in Ranking
Summary
Marginalia Search introduced a domain trust system to reduce content-farm results by prioritizing high-quality, human-written domains and using a link-graph penalty model. The approach categorizes untrusted sites by connectivity, applying penalties that scale with site size to discourage manipulation while avoiding pure popularity bias. It notes drawbacks such as new-site discoverability and language limitations (English-only), but reports improvements in ranking quality on test datasets with anti-spam effects.