Penguin
First version of the Penguin anti-webspam filter, targeting artificial links and anchor over-optimization. Impact on about 3 percent of English-language queries.
Key points
- First version of the anti-webspam filter targeting artificial links and anchor over-optimization.
- Around 3 percent of English-language queries affected at launch.
- Sanctions link buying, link farms and repetitive exact-match anchors.
- Requires cleaning up and disavowing toxic backlinks.
Analysis
Penguin marks a turning point in the fight against manipulative link building. Where Panda targeted content, Penguin targets the link profile: artificial schemes and over-optimization of anchor texts become grounds for devaluation, or even a penalty for an entire site.
The impact durably shapes the SEO discipline. The quantity of links ceases to be a goal in itself, the relevance, diversity and naturalness of the profile become priorities, and the disavow tool establishes itself as a reflex of hygiene for profiles inherited from old practices.
What to do
- Audit the backlink profile: spot paid links, over-optimized exact-match anchors and low-quality domains.
- Prepare and keep up to date a disavow file for clearly toxic links.
- Diversify anchor texts and favor the acquisition of natural editorial links.
Penalty for manipulated link profiles. Cleaning up and disavowing toxic backlinks becomes essential.