What are stopwords?


  • Stopwords provide flexibility to linguists when using the required keywords by allowing the placement of defined terms before or in between the keyword. 
  • Search engines have recognized the use of stopwords and they are vital to allow the easy and natural use of keywords in your text. 


  • Keyword: "flights China” 
  • Stopword usage: By allowing stopwords "to" and "in" you are allowing the following spelling options:
    • “flights to China” 
    • “flights in China” 

What are flex endings?


  • Flex endings provide a certain level of flexibility to linguists when using the required keywords.
  • Using flex endings allow the extension of a keyword by up to three letters.

Examples (allowed):

  • Keyword 1: "house" → houses
  • Keyword 2: "door system" → door systems

Examples (NOT allowed, as it is not allowed to change or delete letters of defined)

  • Keyword 1: "Haus" → "Häuser"
  • Keyword 2: "gelb Haus" → "gelbes Haus"