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Yoast SEO Premium 9.0


  • Implements support for word form recognition for keyphrases in English. This means that e.g. book will be recognized in the text when the keyphrase is books.
  • Implements an improved algorithm for the keyphrase distribution assessment to check whether the keyphrase usage is evenly distributed throughout the text.
  • The following assessments will also count synonym matches as keyphrase matches:
    • Image alt attributes
    • Keyphrase in introduction
    • Keyphrase in meta description
    • Keyphrase in subheading
    • Keyphrase distribution
  • The analysis for related keyphrases only shows assessments relevant for the specific keyphrase. It omits assessments that are non-keyphrase-related and assessments that should only be applied to the focus keyphrase.
  • For the keyphrase density assessment, the upper boundary for a good score is higher when word form recognition is available, since in that case the analysis is able to pick up more matches.


  • Fixes a bug where the insights analysis on the tools page would not work.