The cleanest pSEO sites on record.

The pseolint leaderboard ranks programmatic SEO sites by their composite risk score — a 0-to-100 number where lower is better. The score is a weighted aggregate of findings across SpamBrain + AEO rules weighted by your site's archetype (programmatic-directory, blog, ecommerce, docs, small-marketing). Each finding contributes severity- and confidence-weighted points; the site-type profile decides which rule families dominate the final score.

The dominant signal is the spam category, weighted at 33%, because doorway-style scaled abuse is what Google’s SpamBrain classifier targets most aggressively on programmatic sites. Content quality contributes 19%, AEO readiness 14%, internal links 11%, and the rest (tech, data, schema, cannibal) divide the remaining 22%. A site that ships clean templates with real answers can finish well below 30 even at scale; a thin doorway farm will rarely score below 60.

We publish the leaderboard so operators can benchmark against peers without paying for opaque enterprise dashboards. It also demonstrates that the engine produces stable, repeatable results: the same site audited twice in a week should land within a few points. If your audit tells a different story than your traffic, that’s a signal worth investigating — usually a templating regression or a recently shipped doorway pattern.

Ranges to keep in mind: A = 0–19 (ready), B = 20–39 (good), C = 40–59 (concerning), D = 60–79 (severe), F = 80+ (critical). Anything in the A band is healthy enough that we wouldn’t expect manual-action exposure on the SpamBrain axis. C-band sites are where most undermaintained pSEO domains live; D and F is where deindexation events tend to start. The thresholds were calibrated against the August 2022 helpful-content rollout and the March 2024 core update, so a site that lands in the A band today should also have been clean against those historical baselines.