A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
For questions about the usage of the PHP programming language on the main site. Do not post questions asking for help with PHP on meta using this tag.
For discussion about a community blog.
For questions that request that one tag be made a synonym of another tag
For questions abut the site CSS styling, typically [bug] reports with the CSS, or for questions specifically about usage of the CSS language
For questions specifically about the graphical output tag on the main site. Do not post [graphical-output] challenges on meta - they will be closed as off-topic
For discussion around spam posts, such as appropriate etiquette, actions to take and what qualifies as spam
Indicates that the site developers were able to replicate the behavior reported, but cannot address its cause at this time.
Indicates that the feature request or bug is something that is intended to be implemented or fixed, ideally in the near term.
For questions that discuss the idea of language handicaps in code golf challenge. Note that it is generally discouraged to include handicaps, and to instead treat code golf as a series of competitions…
For questions about PPCG's 2 "Periodic Premier Programming Puzzle Push"s - an effort in 2011 to increase the site's activity. This tag has been retired since the end of the Second Periodic Premier Pro…
For questions relating to the Stack Exchange Data Explorer - also known as SEDE. SEDE allows you to query Stack Exchange sites using SQL to gather and analyse data. Questions with this tag should spec…
Indicates that the question is related to delete votes. Users with 10k+ reputation have the ability to cast deletion votes to remove inappropriate content from the site
For discussions about a specific answer, either on main or meta
For questions about the usage of the C# programming language on the main site. Do not post questions asking for help with C# on meta using this tag.
For questions about image-processing challenges on the main site. Do not post [image-processing] challenges on meta - they will be closed as off-topic
For questions specifically about [code-bowling] challenges. Code-bowling challenges should be asked on the main site, not here.
Indicates that the post shares product or configuration change concepts during the Discovery phase. Open to receiving feedback from the Community preceding implementation.
A special moderator-only tag to mark important meta discussions. A question with this tag can be seen on the main site in a special sidebar in the questions list and when viewing individual questions.
for questions about the bookmark question feature. Bookmarking is a system that allows users to save a question to be more easily found at a later date