Navboost
A Google ranking component, described in United States antitrust testimony, that uses aggregated historical click and query data to adjust…
Algorithms
Twiddlers
Google's internal term, surfaced in antitrust testimony and leaked documentation, for re-ranking functions applied on top of a core retrieval score.
In full
Rather than altering the primary scoring system, twiddlers adjust or filter a result set — boosting, demoting, capping how many results a site may occupy, or applying feature-specific rules. The concept explains why ranking behaviour can look layered: a base relevance ordering with many situational adjustments on top. It is not officially documented terminology and should be described as such.
Example
Practitioners use the concept to explain why site diversity limits and freshness boosts appear to act after primary relevance is determined.
Related terms
Google Content Warehouse API leak
The May 2024 publication of thousands of internal Google Search API documentation attributes, which named ranking-related features not…
Site diversity system
Google's system limiting how many results from the same site appear for a query, typically to two, so results are not dominated by one…
Google ranking systems
Google's documented list of the systems that generate rankings, distinguished from one-off 'updates' to those systems, and including…
Freshness systems (QDF)
Google's systems that boost recent content for queries where recency matters, such as breaking news, sports scores or evolving topics.
Where to read more
- Secrets from the Google Algorithm Leak · Landmark Post · ipullrank.com