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.

× 502
stackexchange.com provides a way to monitor activity across multiple sites in the Stack Exchange network using customizable filters.
× 500
For discussion about the explicitly commercial advertising that appears on this site (if any), as well as the Community Promotion Ads which are voted on by users of each site.
× 492
available to users with a reputation of 10,000 or higher.
× 491
held to choose moderators for all graduated sites and some long-term beta sites.
× 483
those questions which have no up-voted or accepted answers.
× 471
For issues regarding the help center of Stack Exchange.
× 461
Hot Network Questions in the right-hand sidebar, the “hot” tab on each site, and on stackexchange.com.
× 460
For questions about the public lists of changes made to posts by a site's users. They are available for questions and answers by clicking the "edited X min ago" link, and on tag wikis as "history" and…
× 449
The global inbox contains information from across the entire network about notifications regarding posts and comments you've made, from answers to your questions to @replies to your comments.
× 440
The standard editor for Stack Exchange posts, which supports a live preview of Markdown syntax.
× 438
for issues of what is allowable or desirable in question titles. For questions about window/tab titles of Stack Exchange pages, use the [window-title] tag instead.
× 435
For questions about any of the emails sent from Stack Exchange sites to their users.
× 435
about the quarterly creative commons data dumps of all public data in the Stack Exchange network Q&A sites.
× 432
Questions about sizes and other quantities of Stack Exchange sites, e.g. number of questions, GB/day transferred, etc.
× 424
For questions about the syntax highlighting performed inside code blocks on Stack Exchange sites.
× 424
for questions about the favorite question feature - indicated by the star under the voting arrows on a question. For questions about favorite tags, use (favorite-tags) instead.
× 423
A request to add one tag as the synonym of another tag. Please be specific about which tag should be a synonym of which. Bidirectional synonyms and cycles are implicitly disallowed, so suggest wisely.
× 421
blocked from asking new questions, or posting new answers.
× 417
a set of tags that can be marked by a user. The questions that have favorite tags will be highlighted, and can be monitored using Tag Sets.
× 409
when examining what is on-topic or off-topic, and why.
× 400
For questions related to the sort orderings of questions, answers, and other lists on SE sites.
× 397
Questions relating to the suggestion or request for one or more new badges
× 369
For questions about the Stack Exchange API. Consider checking the API documentation and the Stack Apps site before posting your question here, it might have been asked before already.
× 362
For questions regarding display names and what is allowed in them.
× 356
Flags that have been declined by a community moderator or other trusted members of the community.
× 346
Use with [meta] to request that a tag here on Meta Stack Exchange be removed. Use in case of uncertainty when requesting discussion, or when the popularity of the tag makes manual retagging prohibitiv…
× 344
User accounts can be temporarily banned ("suspended") by ♦ moderators for violation of the site rules. Use this tag for any questions related to user suspensions. Do not use this tag to appeal a suspe…
× 341
For questions about the user named Community ♦ present on Stack Exchange sites.
× 336
The process by which high-reputation users and moderators can vote to delete a post from the site.
× 336
For general questions about the Winter Bash (or holiday hats) celebration at the end of the year. Please consider using the year-specific variation, e.g. [winter-bash-2018] if it's solely about this y…
× 329
regarding flagging comments as rude or offensive, no longer needed, or in need of moderator intervention. Also, for questions regarding the number of flags of a certain type required for automaticall…
× 325
Use it for questions about user accounts that have been deleted or the process of that deletion.
× 325
For questions about adapting Stack Exchange to the needs of users from a specific cultural, linguistic or geographical background.
× 320
for questions about the Stack Overflow blog, the place for official company communications as well as essays, opinions, and advice on the act of computer programming.
× 319
the act of casting many upvotes or downvotes on the posts of a specific user without proper reason. Also known as voting fraud.
× 318
For questions about or problems with a user's network profile.