Constraint report

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This special page performs constraint checks on any entity you want. The entities are fetched from the live system, so every constraint violation you fix there will be instantly removed from this list.

The constraints are parsed from statements on properties each time those statements are edited, usually within a few minutes.

Check constraints for entity

Result for The Federalist (Q17086113)

: 3, : 1, : 539, : 46, : 2

StatusPropertyMessageConstraint
stated inValues of stated in statements should be instances or subclasses of one of the following classes (or of one of their subclasses), but Alexa Internet currently isn't: value-type constraint
reference URLThe value for reference URL (https://en.wikipedia.org/w/index.php?title=Wikipedia:Vaccine_safety/Perennial_sources&oldid=1154234245) should match the regex ^((?!wikipedia\.org).)*$.format constraint
Parler username (archived)Entities using the Parler username (archived) property should be instances of one of the following classes (or of one of their subclasses), but The Federalist currently isn't: subject type constraint
different fromFederalist Papers should also have the symmetric statement different from The Federalist.symmetric constraint