Wikipedia:Based upon

Wikipedia:Based upon

What sources should articles be based upon?

← Previous revision Revision as of 14:59, 25 April 2026
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* [[WP:NOT]] says that "All article topics must be verifiable with independent, third-party sources".
* [[WP:NOT]] says that "All article topics must be verifiable with independent, third-party sources".
* [[WP:V]] says that "Articles must be based on reliable, independent, published sources with a reputation for fact-checking and accuracy".
* [[WP:V]] says that "Articles must be based on reliable, independent, published sources with a reputation for fact-checking and accuracy".
* [[WP:NOR]] says that "Wikipedia articles should be based on reliable, published secondary sources and, to a lesser extent, on tertiary sources and primary sources".
* [[WP:NOR]] says that "Wikipedia articles should be based on reliable, independent, published secondary sources and, to a lesser extent, on tertiary sources and primary sources".


Additionally, certain types of content require particular attention to what sources they're based upon. For example, all [[Wikipedia:Biomedical information|biomedical information]] must be based on reliable, third-party published [[Secondary source|secondary sources]]. Controversial "[[WP:REDFLAG|red flag]]" content should be more carefully sourced than routine, uncontroversial information. Some content benefits from having a higher proportion of secondary sources than usual, or near-exclusive use of independent sources, and an even higher quality of sources than usual.
Additionally, certain types of content require particular attention to what sources they're based upon. For example, all [[Wikipedia:Biomedical information|biomedical information]] must be based on reliable, third-party published [[Secondary source|secondary sources]]. Controversial "[[WP:REDFLAG|red flag]]" content should be more carefully sourced than routine, uncontroversial information. Some content benefits from having a higher proportion of secondary sources than usual, or near-exclusive use of independent sources, and an even higher quality of sources than usual.