HTML Structure doctype-first doctype-html5 title-require main-require h1-require tag-pair tag-self-close empty-tag-not-self-closed tag-no-obsolete tags-check
Tag & Attribute Format tagname-lowercase tagname-specialchars attr-lowercase attr-value-double-quotes attr-value-single-quotes attr-value-not-empty attr-no-duplication attr-value-no-duplication attr-sorted attr-no-unnecessary-whitespace attr-whitespace attr-unsafe-chars
Meta & Head meta-charset-require meta-description-require meta-viewport-require html-lang-require link-rel-canonical-require head-script-disabled
Code Quality style-disabled inline-style-disabled inline-script-disabled script-disabled space-tab-mixed-disablednomixspacespace2space4tab