Speedy does not mean immediate. Although most speedy-deletion candidates are processed within a few minutes, more complicated pages may remain in the list for several days.
Attack pages: When deleting attack pages, be careful that you don't quote any of the content in your deletion summary. In some cases, MediaWiki will offer a prefilled deletion summary that includes some of the content being deleted; make sure you replace the summary with something more appropriate (such as "[[WP:CSD#G10]] - Attack page") before clicking the delete button. If you do, by accident, quote the content, then you should undelete the page and redelete it with the correct deletion reason, before deleting the log entry for the first deletion.
Quick reference (Please note that each criterion is described in greater detail at WP:CSD: Numerous simple-looking criteria have detailed requirements that must be met)
G1: Nonsense – G2: Test pages – G3: Vandalism – G4: Previously deleted by AfD – G5: Banned user – G6: Housekeeping – G7: Author's request – G8: Dependent page – G10: Attack pages/libel – G11:Spam – G12: Copyright infringement - G13: Abandoned old AfC submissions
A1: No context – A2: Foreign language (transwikied) – A3: No content or contact attempt – A5: Transwikied – A7: No claim of importance/significance (people, animals, organizations, clubs, bands, web content) – A9: No claim of importance/significance of musical recordings – A10: Recently created article that duplicates an existing topic
R2: To several namespaces from main one – R3: Implausible typo/misnomers
Backlogs larger than 10 days will not appear below due to limitations in the template. Please clear older backlogs before newer ones and check the "master category" once in a while if a category suddenly changes from "huge backlog" to "no backlog" overnight. Although not technically part of the speedy deletion criteria, articles which have been proposed for deletion for more than seven days are also listed here as a matter of convenience.