In the case of a removed document, the URL will be deleted when Slurp tries to reindex the non-existent web document. If no such tag exists, the first few hundred characters of the visible text is used to formulate the abstract. Slurp tracks the level of confidence in the match between a user's request and the documents found. A high score is given to documents most likely to contain terms that a user is looking for, and the result is ranked higher than documents with a lower score. Documents are ranked higher if a search term is in the title.
Users are more likely to click a link if the title matches what they're looking for.
Choose terms for the title that match the concept of your document. Write your description carefully. After a title, users click on a link because the description draws them in. This helps, too, although not as much as the title. If possible, customize the keywords for each page on your site instead of using one broad set of keywords on every page.