←Back to Wiki

invalid_tag

📅 Updated:2026-03-26
🕒 Created:2009-06-27
🆔 ID:550

Description

Images or animations featuring this tag were given tags that are no longer actively used on the site or simply deemed unusable — too vague, broken, deprecated, or outright banned.
This tag acts as a flag: its presence signals an error in the post’s tag list. Usually, it can be safely removed without any other further action.
See also the help section

Tag invalidation criteria

Tags are tools to help users filter and explore content. They improve discoverability, make posts easier to find, and ensure each post is accurately categorized. New or experimental tags are encouraged if they add clarity and usefulness.
The following points outline the common considerations involved when invalidating a tag. They represent typical patterns, not absolute restrictions. Tags are reviewed based on their usefulness, clarity, and consistency with the broader tagging system.
Criteria list
Too broad
Too specific
Subjective
Transient
  • Tags that naturally need to change over time and are not stable descriptors. new, old_art
Extrinsic
Hateful
  • Tags that are inherently hateful, slur-based, or discriminatory. [color=#ff3d3d]These tags are not permitted under any circumstances.[/color]
Redundant
  • Tags that are already described or implied by other tags. These redundant tags are good candidates to be aliased to the more appropriate tag.
Useless

Help[#help_section]

Why is invalid_tag on a post?
In short, one of the tags in the "invalid tag list":/tag_aliases?commit=Search&search%5Bname_matches%5D=invalid_tag&search%5Border%5D=status was used. The system automatically replaced those tags with invalid_tag.
What should I do about it?
Remove it.
Invalid tag is not a real descriptive tag and serves no purpose on the post itself. There is nothing to “fix” except removing it and ensuring the post’s tags are complete and valid.
Which tag was transformed into invalid_tag?
Currently, there is no way to see which specific tag was invalidated.
It’s up to the tagger to ensure the tags they add are legitimate and up-to-date.
How do I make a tag invalid/ valid again?
Submit a request via:
  • "Forum post,":/forum_topics or
  • "Bulk Update Request (BUR)":/help/tag_relationships#bur
The community and the staff will review the proposal and determine whether the tag should be invalidated, restored, or aliased.

Invalid tag list

  • "The current list":/tag_aliases?commit=Search&search%5Bname_matches%5D=invalid_tag&search%5Border%5D=status&search%5Bstatus%5D=Active

See also