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Official statement

John Mueller explained during a webmaster hangout that Google's "core updates" could impact the frequency of PAA (People Also Ask) appearances in the SERPs. Sometimes they may appear more often following an algorithm update, and sometimes the opposite. He also added that this could be exactly the same for featured snippets or rich results...
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Official statement from (4 years ago)

What you need to understand

Google's core updates don't just modify the ranking of traditional web pages. According to this statement, these major algorithm updates can also influence the presence and frequency of enriched SERP elements such as PAA (People Also Ask), featured snippets, or rich results.

Concretely, this means that after a core update, you might observe a significant variation in the display of these elements in search results for your target queries. Sometimes they appear more frequently, sometimes they become scarcer, without this necessarily being related to modifications on your site.

This fluctuation is explained by the fact that Google continuously reassesses the relevance of different result formats based on the detected search intent and the quality of available content. A core update can modify how the algorithm interprets queries and decides which formats to display.

  • PAA, featured snippets, and rich results are directly impacted by core updates
  • Their frequency of appearance can increase or decrease following an update
  • These variations don't necessarily reflect a penalty or reward for your content
  • Google adjusts SERP display based on the evolution of its understanding of user intents

SEO Expert opinion

This statement indeed corresponds to what we regularly observe in post-core update analyses. It's not uncommon to see a site massively lose or gain PAA or featured snippet positions without any particular modification to its content, simply because Google has recalibrated its display criteria.

An important nuance to add: while PAA appearances fluctuate globally, the quality of your optimization remains decisive for your ability to capture them when they are displayed. Content structured with clear, concise answers in the appropriate format always maintains a competitive advantage.

Warning: Don't confuse a drop in PAA visibility due to a core update with a disappearance related to a technical or quality issue on your site. Always analyze whether the overall presence of PAA has decreased for your queries (algorithmic impact) or if only your site is affected (specific problem).

Furthermore, this variability reinforces the importance of a diversified SEO strategy. Relying solely on featured snippets or PAA to generate traffic carries a structural risk, since Google can decide to modify the display of these elements at any time.

Practical impact and recommendations

  • Monitor SERP evolution after each core update to identify display changes in PAA and featured snippets for your strategic queries
  • Don't panic if you lose PAA positions immediately after an update: first verify whether it's a global trend or specific to your site
  • Continue optimizing for PAA and featured snippets even if their frequency temporarily decreases, as the rules can reverse at the next update
  • Structure your content with clear question-and-answer formats, lists, tables, and concise definitions to maximize your capture opportunities
  • Diversify your traffic sources: never rely exclusively on rich results for your organic visibility
  • Document observed variations in a dashboard to understand patterns across successive updates and anticipate trends
  • Analyze competitors: who gains the PAA when you lose them, and what content structure are they using?

In summary: Core updates modify the SERP ecosystem in its entirety, not just traditional rankings. Your strategy must integrate this structural volatility while maintaining constant optimization for all result formats.

Managing these fluctuations and continuously adapting to algorithmic evolutions represents a complex challenge that requires sharp expertise and constant monitoring. Faced with these technical and strategic challenges, support from a specialized SEO agency can prove invaluable for maintaining and developing your visibility, particularly during periods of algorithmic turbulence where every decision counts.

Algorithms Content Featured Snippets & SERP AI & SEO

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