Structured Data Validation Warnings

Diagram of a broad core update recovery loop covering how to assess losses, which quality signals to review, and the remediation mindset for recovery.

The May 2020 Google Core Update – 4 Case Studies That Emphasize The Complexity Of Broad Core Algorithm Updates

4 case studies from Glenn Gabe that show the complexity Of core algorithm Updates from Google.

Diagram of the september 2019 google core update showing where health and medical volatility concentrated, the baby algorithms idea, and kitchen sink remediation.

The September 2019 Google Core Update – Case studies, health and medical volatility, Discover impact, “baby algorithms”, and revisiting the “kitchen sink” approach to remediation

A case study from Glenn Gabe shows the complexities of core algorithm updates (Sep 2019).

Diagram showing how copied or near duplicate pages trigger a sitewide quality reassessment during a google core update and a cascade of ranking declines.

Google’s Core Algorithm Updates and Copied Content: The Domino Effect of Negative Impact

A case study showing the domino effect of Google core algorithm updates.

Diagram mapping how real user study feedback surfaces website quality problems and how each finding maps to a concrete seo fix before the next core update.

Google’s Core Algorithm Updates and The Power of User Studies: How Real Feedback From Real People Can Help Site Owners Surface Website Quality Problems (And More)

A great case study from Glenn Gabe on how using user studies can help recover lost…

Timeline chart showing a steady click baseline, a sudden one month flatline demotion beginning at a precise timestamp, and a rebound near the following update.

SEO Flatliners – The Curious Case Of A Massive 1-Month Algorithmic Demotion From Google (To The Minute) And What Could Have Triggered The Drop

A strange case study from Glenn Gabe on the impact of a core algorithm update for…

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