Sometimes when I edit a question, I choose a tag but it doesn't taken into account. Is someone can tell me why some tags are changed automatically?

For example, I have edited a question by addind the url-format tag but it's changed to url tag.

  • 1
    Can you give an example? My guess is that the tag is a synonym of the one that replaced it.
    – John Conde Mod
    Jun 30, 2013 at 18:11
  • Thanks John, that's it.
    – Zistoloen
    Jul 4, 2013 at 11:29

1 Answer 1


Some tags are "synonyms" of other tags. If you use one of those tags, they will be automatically changed to their synonym. For example becomes . You can see the list here: https://webmasters.stackexchange.com/tags/synonyms

  • Thanks Stephen, you're right.
    – Zistoloen
    Jul 4, 2013 at 11:29

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .