SortSite 2026.60 Changes

A list of changed accessibility, compatibility and search engine rules in SortSite 2026.60.

Changed rules

Errors

• Server rendered page checked as file: (ErrScriptFileUrl)

Accessibility

• Placeholder for timed media (AccHtmlTimedMediaPlaceholder)
• Null alt role conflict (AccAriaRoleConflictNullAlt)
• Clickable control with no role (AccHtmlClickableNoRole)
• Clickable control without tabindex (AccHtmlClickableNoTabindex)
• role=caption must have parent with role=figure or grid or table or treegrid (W3cHtml5AriaRequiredParentRoles-caption)
• role=cell must have parent with role=row (W3cHtml5AriaRequiredParentRoles-cell)
• role=option must have parent with role=listbox (W3cHtml5AriaRequiredParentRoles-option)
• role=menuitem must have parent with role=menu or menubar (W3cHtml5AriaRequiredParentRoles-menuitem)
• role=menuitemcheckbox must have parent with role=menu or menubar (W3cHtml5AriaRequiredParentRoles-menuitemcheckbox)
• role=menuitemradio must have parent with role=menu or menubar or group (W3cHtml5AriaRequiredParentRoles-menuitemradio)
• role=tab must have parent with role=tablist (W3cHtml5AriaRequiredParentRoles-tab)
• role=treeitem must have parent with role=tree or group (W3cHtml5AriaRequiredParentRoles-treeitem)
• role=listitem must have parent with role=list (W3cHtml5AriaRequiredParentRoles-listitem)
• role=gridcell must have parent with role=row (W3cHtml5AriaRequiredParentRoles-gridcell)
• role=columnheader must have parent with role=row (W3cHtml5AriaRequiredParentRoles-columnheader)
• role=rowheader must have parent with role=row (W3cHtml5AriaRequiredParentRoles-rowheader)
• role=row must have parent with role=grid or rowgroup or treegrid or table (W3cHtml5AriaRequiredParentRoles-row)
• role=rowgroup must have parent with role=grid or treegrid or table (W3cHtml5AriaRequiredParentRoles-rowgroup)
• img with alt='' must not have role (W3cHtmlImgNullAltWithRole)
• aria-hidden not allowed on base (W3cHtml5AriaHiddenNotAllowed-base)
• aria-hidden not allowed on col (W3cHtml5AriaHiddenNotAllowed-col)
• aria-hidden not allowed on colgroup (W3cHtml5AriaHiddenNotAllowed-colgroup)
• aria-hidden not allowed on head (W3cHtml5AriaHiddenNotAllowed-head)
• aria-hidden not allowed on html (W3cHtml5AriaHiddenNotAllowed-html)
• aria-hidden not allowed on input with type=hidden (W3cHtml5AriaHiddenNotAllowed-input)
• aria-hidden not allowed on link (W3cHtml5AriaHiddenNotAllowed-link)
• aria-hidden not allowed on map (W3cHtml5AriaHiddenNotAllowed-map)
• aria-hidden not allowed on meta (W3cHtml5AriaHiddenNotAllowed-meta)
• aria-hidden not allowed on noscript (W3cHtml5AriaHiddenNotAllowed-noscript)
• aria-hidden not allowed on param (W3cHtml5AriaHiddenNotAllowed-param)
• aria-hidden not allowed on script (W3cHtml5AriaHiddenNotAllowed-script)
• aria-hidden not allowed on slot (W3cHtml5AriaHiddenNotAllowed-slot)
• aria-hidden not allowed on source (W3cHtml5AriaHiddenNotAllowed-source)
• aria-hidden not allowed on style (W3cHtml5AriaHiddenNotAllowed-style)
• aria-hidden not allowed on template (W3cHtml5AriaHiddenNotAllowed-template)
• aria-hidden not allowed on title (W3cHtml5AriaHiddenNotAllowed-title)
• aria-hidden not allowed on track (W3cHtml5AriaHiddenNotAllowed-track)
• aria-hidden not allowed on elements with hidden=until-found (W3cHtml5AriaHiddenNotAllowed-hidden-until-found)
• role=article unnecessary for article (W3cHtml5AriaExplicitRole-article)
• role=complementary unnecessary for aside (W3cHtml5AriaExplicitRole-aside)
• role=document unnecessary for body (W3cHtml5AriaExplicitRole-body)
• role=button unnecessary for button (W3cHtml5AriaExplicitRole-button)
• role=listbox unnecessary for datalist (W3cHtml5AriaExplicitRole-datalist)
• role=definition unnecessary for dd (W3cHtml5AriaExplicitRole-dd)
• role=group unnecessary for details (W3cHtml5AriaExplicitRole-details)
• role=term unnecessary for dfn (W3cHtml5AriaExplicitRole-dfn)
• role=dialog unnecessary for dialog (W3cHtml5AriaExplicitRole-dialog)
• role=term unnecessary for dt (W3cHtml5AriaExplicitRole-dt)
• role=group unnecessary for fieldset (W3cHtml5AriaExplicitRole-fieldset)
• role=figure unnecessary for figure (W3cHtml5AriaExplicitRole-figure)
• role=contentinfo unnecessary for footer (W3cHtml5AriaExplicitRole-footer-contentinfo)
• role=form unnecessary for form (W3cHtml5AriaExplicitRole-form)
• role=heading unnecessary for h1 (W3cHtml5AriaExplicitRole-h1)
• role=heading unnecessary for h2 (W3cHtml5AriaExplicitRole-h2)
• role=heading unnecessary for h3 (W3cHtml5AriaExplicitRole-h3)
• role=heading unnecessary for h4 (W3cHtml5AriaExplicitRole-h4)
• role=heading unnecessary for h5 (W3cHtml5AriaExplicitRole-h5)
• role=heading unnecessary for h6 (W3cHtml5AriaExplicitRole-h6)
• role=banner unnecessary for header (W3cHtml5AriaExplicitRole-header-banner)
• role=separator unnecessary for hr (W3cHtml5AriaExplicitRole-hr)
• role=listitem unnecessary for li (W3cHtml5AriaExplicitRole-li-listitem)
• role=link unnecessary for link (W3cHtml5AriaExplicitRole-link)
• role=main unnecessary for main (W3cHtml5AriaExplicitRole-main)
• role=math unnecessary for math (W3cHtml5AriaExplicitRole-math)
• role=navigation unnecessary for nav (W3cHtml5AriaExplicitRole-nav)
• role=list unnecessary for ol (W3cHtml5AriaExplicitRole-ol)
• role=option unnecessary for option (W3cHtml5AriaExplicitRole-option)
• role=status unnecessary for output (W3cHtml5AriaExplicitRole-output)
• role=progressbar unnecessary for progress (W3cHtml5AriaExplicitRole-progress)
• role=region unnecessary for section (W3cHtml5AriaExplicitRole-section)
• role=listbox unnecessary for select (W3cHtml5AriaExplicitRole-select-listbox)
• role=combobox unnecessary for select (W3cHtml5AriaExplicitRole-select-combobox)
• role=deletion unnecessary for s (W3cHtml5AriaExplicitRole-s)
• role=button unnecessary for summary (W3cHtml5AriaExplicitRole-summary)
• role=table unnecessary for table (W3cHtml5AriaExplicitRole-table)
• role=rowgroup unnecessary for tbody (W3cHtml5AriaExplicitRole-tbody)
• role=textbox unnecessary for textarea (W3cHtml5AriaExplicitRole-textarea)
• role=rowgroup unnecessary for tfoot (W3cHtml5AriaExplicitRole-tfoot)
• role=rowgroup unnecessary for thead (W3cHtml5AriaExplicitRole-thead)
• role=cell unnecessary for td (W3cHtml5AriaExplicitRole-td)
• role=row unnecessary for tr (W3cHtml5AriaExplicitRole-tr)
• role=list unnecessary for ul (W3cHtml5AriaExplicitRole-ul)
• role=columnheader unnecessary for th (W3cHtml5AriaExplicitRole-th)
• select only allows combobox menu and combobox roles (W3cHtml5AriaAllowedRole-select-combobox)
• meter does not need a role (W3cHtml5AriaUneededRole-meter)
• optgroup does not need a role (W3cHtml5AriaUneededRole-optgroup)
• role=button unnecessary for input type=button (W3cHtml5AriaUneededRoleForType-input-button)
• role=checkbox unnecessary for input type=checkbox (W3cHtml5AriaUneededRoleForType-input-checkbox)
• role=button unnecessary for input type=image (W3cHtml5AriaUneededRoleForType-input-image)
• role=spinbutton unnecessary for input type=number (W3cHtml5AriaUneededRoleForType-input-number)
• role=radio unnecessary for input type=radio (W3cHtml5AriaUneededRoleForType-input-radio)
• role=slider unnecessary for input type=range (W3cHtml5AriaUneededRoleForType-input-range)
• role=button unnecessary for input type=reset (W3cHtml5AriaUneededRoleForType-input-reset)
• role=button unnecessary for input type=submit (W3cHtml5AriaUneededRoleForType-input-submit)
• role=button unnecessary for button type=menu (W3cHtml5AriaUneededRoleForType-button-menu)
• role=toolbar unnecessary for menu type=toolbar (W3cHtml5AriaUneededRoleForType-menu-toolbar)
• role=textbox unnecessary for input type=email and no list attribute (W3cHtml5AriaUneededRoleForType-input-email-textbox)
• role=textbox unnecessary for input type=tel and no list attribute (W3cHtml5AriaUneededRoleForType-input-tel-textbox)
• role=textbox unnecessary for input type=text and no list attribute (W3cHtml5AriaUneededRoleForType-input-text-textbox)
• role=searchbox unnecessary for input type=search and no list attribute (W3cHtml5AriaUneededRoleForType-input-search-searchbox)
• role=textbox unnecessary for input type=url and no list attribute (W3cHtml5AriaUneededRoleForType-input-url-textbox)
• role=combobox unnecessary for input type=email and a list attribute (W3cHtml5AriaUneededRoleForType-input-email-combobox)
• role=combobox unnecessary for input type=tel and a list attribute (W3cHtml5AriaUneededRoleForType-input-tel-combobox)
• role=combobox unnecessary for input type=text and a list attribute (W3cHtml5AriaUneededRoleForType-input-text-combobox)
• role=combobox unnecessary for input type=search and a list attribute (W3cHtml5AriaUneededRoleForType-input-search-combobox)
• role=combobox unnecessary for input type=url and a list attribute (W3cHtml5AriaUneededRoleForType-input-url-combobox)
• aria-haspopup should not be used on input type=email with a list attribute (W3cHtml5AriaHasPopupRedundant-input-email)
• aria-haspopup should not be used on input type=tel with a list attribute (W3cHtml5AriaHasPopupRedundant-input-tel)
• aria-haspopup should not be used on input type=text with a list attribute (W3cHtml5AriaHasPopupRedundant-input-text)
• aria-haspopup should not be used on input type=search with a list attribute (W3cHtml5AriaHasPopupRedundant-input-search)
• aria-haspopup should not be used on input type=url with a list attribute (W3cHtml5AriaHasPopupRedundant-input-url)
• role=listitem unnecessary for li inside ol or ul (W3cHtml5AriaUneededRoleForType-li-listitem)
• role=link unnecessary for a, area and link with href (W3cHtml5AriaUneededRoleForType-href-link)
• role=combobox unnecessary for select elements with size less than two (W3cHtml5AriaUneededRoleForType-select-combobox)
• role=listbox unnecessary for select with multiple or size greater than one (W3cHtml5AriaUneededRoleForType-select-listbox)
• Non-empty img alt used with role=none or role=presentation (W3cHtml5AriaProhibitedRoleForType-img-alt)
• img with no alt cannot have a role (W3cHtml5AriaProhibitedRoleForType-img-no-alt)
• img with no alt cannot have aria- attributes (W3cHtml5AriaProhibitedAttrsForType-img-no-alt)
• role forbidden on td th and tr elements inside tables (W3cHtml5AriaProhibitedRoleWithAncestorTableRole)
• aria-colspan not needed with colspan (W3cHtml5AriaAttrWithNativeAttr-colspan)
• aria-colspan must match colspan (W3cHtml5AriaAttrMismatchWithNativeAttr-colspan)
• aria-disabled not needed with disabled (W3cHtml5AriaAttrWithNativeAttr-disabled)
• aria-disabled=false cannot be used with disabled (W3cHtml5AriaAttrFalseWithNativeAttr-disabled)
• aria-hidden not needed with hidden (W3cHtml5AriaAttrWithNativeAttr-hidden)
• aria-hidden=false cannot be used with hidden (W3cHtml5AriaAttrFalseWithNativeAttr-hidden)
• aria-readonly not needed with readonly (W3cHtml5AriaAttrWithNativeAttr-readonly)
• aria-readonly=false cannot be used with readonly (W3cHtml5AriaAttrFalseWithNativeAttr-readonly)
• aria-required not needed with required (W3cHtml5AriaAttrWithNativeAttr-required)
• aria-required=false cannot be used with required (W3cHtml5AriaAttrFalseWithNativeAttr-required)
• aria-rowspan not needed with rowspan (W3cHtml5AriaAttrWithNativeAttr-rowspan)
• aria-rowspan must match rowspan (W3cHtml5AriaAttrMismatchWithNativeAttr-rowspan)
• aria-valuemax redundant on progress (W3cHtml5AriaRedundant-progress-aria-valuemax)
• aria-valuemax redundant on meter (W3cHtml5AriaRedundant-meter-aria-valuemax)
• aria-valuemin redundant on meter (W3cHtml5AriaRedundant-meter-aria-valuemin)
• aria-valuemax redundant on input (W3cHtml5AriaRedundant-input-aria-valuemax)
• aria-valuemin redundant on input (W3cHtml5AriaRedundant-input-aria-valuemin)
• aria-multiselectable should not be used on select (W3cHtml5AriaRedundant-select-aria-multiselectable)
• aria-selected should not be used on option (W3cHtml5AriaRedundant-option-aria-selected)
• ARIA global property used on prohibited role (W3cAriaGlobalRoleProhibited)
• directory role is deprecated (W3cAriaDeprecatedRoleDirectory)
• Active role=tab without role=tabpanel (W3cAriaTabWithoutTabpanel)
• Invalid aria-controls value (W3cHtml5Error-RnvErAval-aria-controls)

Compatibility

• rex, rch, and ric units have partial support (BugCssUnitRootFont)
• oncontextmenu event not supported on mobile (BugSafariMobileOnContextMenu)
• Image maps with id but no name have partial support (BugMozillaImageMap)

Search

• No meta description tag (SeoMetaDescription)
• Page has noindex meta tag (SeoMetaNoIndex)
• Link text is not descriptive (SeoClickHere)
• rel=canonical redirects to the wrong page (SeoWrongCanonical)
• Page has invalid rel=canonical link (SeoInvalidCanonical)
• Link hreflang is invalid (SeoHreflangInvalid)

Standards

• Null alt role conflict (AccAriaRoleConflictNullAlt)
• profile on head is obsolete (W3cHtml5Assert87head)
• border on the img element is obsolete (W3cHtml5Assert141img)
• border on img element is obsolete (W3cHtml5Assert176)
• name on the a element is obsolete (W3cHtml5Assert178)
• role=caption must have parent with role=figure or grid or table or treegrid (W3cHtml5AriaRequiredParentRoles-caption)
• role=cell must have parent with role=row (W3cHtml5AriaRequiredParentRoles-cell)
• role=option must have parent with role=listbox (W3cHtml5AriaRequiredParentRoles-option)
• role=menuitem must have parent with role=menu or menubar (W3cHtml5AriaRequiredParentRoles-menuitem)
• role=menuitemcheckbox must have parent with role=menu or menubar (W3cHtml5AriaRequiredParentRoles-menuitemcheckbox)
• role=menuitemradio must have parent with role=menu or menubar or group (W3cHtml5AriaRequiredParentRoles-menuitemradio)
• role=tab must have parent with role=tablist (W3cHtml5AriaRequiredParentRoles-tab)
• role=treeitem must have parent with role=tree or group (W3cHtml5AriaRequiredParentRoles-treeitem)
• role=listitem must have parent with role=list (W3cHtml5AriaRequiredParentRoles-listitem)
• role=gridcell must have parent with role=row (W3cHtml5AriaRequiredParentRoles-gridcell)
• role=columnheader must have parent with role=row (W3cHtml5AriaRequiredParentRoles-columnheader)
• role=rowheader must have parent with role=row (W3cHtml5AriaRequiredParentRoles-rowheader)
• role=row must have parent with role=grid or rowgroup or treegrid or table (W3cHtml5AriaRequiredParentRoles-row)
• role=rowgroup must have parent with role=grid or treegrid or table (W3cHtml5AriaRequiredParentRoles-rowgroup)
• Duplicate dt terms in dl (W3cHtml5DuplicateDt)
• form attribute must refer to form element (W3cHtml5FormIsNotForm)
• list attribute must refer to datalist element (W3cHtml5ListIsNotDatalist)
• type is redundant on style (W3cHtml5StyleTypeRedundant)
• script with redundant type attribute (W3cHtml5ScriptTypeRedundant)
• script must not have async (W3cHtml5ScriptForbidden-classic-inline-async)
• script must not have blocking (W3cHtml5ScriptForbidden-classic-inline-blocking)
• script must not have defer (W3cHtml5ScriptForbidden-classic-inline-defer)
• script must not have fetchpriority (W3cHtml5ScriptForbidden-classic-inline-fetchpriority)
• script must not have integrity (W3cHtml5ScriptForbidden-classic-inline-integrity)
• script with type=module must not have blocking (W3cHtml5ScriptForbidden-module-inline-blocking)
• script with type=module must not have fetchpriority (W3cHtml5ScriptForbidden-module-inline-fetchpriority)
• script with type=module must not have integrity (W3cHtml5ScriptForbidden-module-inline-integrity)
• script with type=importmap must not have async (W3cHtml5ScriptForbidden-importmap–async)
• script with type=importmap must not have blocking (W3cHtml5ScriptForbidden-importmap–blocking)
• script with type=importmap must not have crossorigin (W3cHtml5ScriptForbidden-importmap–crossorigin)
• script with type=importmap must not have defer (W3cHtml5ScriptForbidden-importmap–defer)
• script with type=importmap must not have fetchpriority (W3cHtml5ScriptForbidden-importmap–fetchpriority)
• script with type=importmap must not have integrity (W3cHtml5ScriptForbidden-importmap–integrity)
• script with type=importmap must not have nomodule (W3cHtml5ScriptForbidden-importmap–nomodule)
• script with type=importmap must not have referrerpolicy (W3cHtml5ScriptForbidden-importmap–referrerpolicy)
• script with type=speculationrules must not have async (W3cHtml5ScriptForbidden-speculationrules–async)
• script with type=speculationrules must not have blocking (W3cHtml5ScriptForbidden-speculationrules–blocking)
• script with type=speculationrules must not have crossorigin (W3cHtml5ScriptForbidden-speculationrules–crossorigin)
• script with type=speculationrules must not have defer (W3cHtml5ScriptForbidden-speculationrules–defer)
• script with type=speculationrules must not have fetchpriority (W3cHtml5ScriptForbidden-speculationrules–fetchpriority)
• script with type=speculationrules must not have integrity (W3cHtml5ScriptForbidden-speculationrules–integrity)
• script with type=speculationrules must not have nomodule (W3cHtml5ScriptForbidden-speculationrules–nomodule)
• script with type=speculationrules must not have referrerpolicy (W3cHtml5ScriptForbidden-speculationrules–referrerpolicy)
• script with type=speculationrules must not have src (W3cHtml5ScriptForbidden-speculationrules–src)
• script with a data type must not have async (W3cHtml5ScriptForbidden-datablock–async)
• script with a data type must not have blocking (W3cHtml5ScriptForbidden-datablock–blocking)
• script with a data type must not have crossorigin (W3cHtml5ScriptForbidden-datablock–crossorigin)
• script with a data type must not have defer (W3cHtml5ScriptForbidden-datablock–defer)
• script with a data type must not have fetchpriority (W3cHtml5ScriptForbidden-datablock–fetchpriority)
• script with a data type must not have integrity (W3cHtml5ScriptForbidden-datablock–integrity)
• script with a data type must not have nomodule (W3cHtml5ScriptForbidden-datablock–nomodule)
• script with a data type must not have referrerpolicy (W3cHtml5ScriptForbidden-datablock–referrerpolicy)
• script with a data type must not have src (W3cHtml5ScriptForbidden-datablock–src)
• blink is obsolete (W3cHtml5ObsoleteElementBlink)
• marquee is obsolete (W3cHtml5ObsoleteElementMarquee)
• menuitem is obsolete (W3cHtml5ObsoleteElementMenuitem)
• nobr is obsolete (W3cHtml5ObsoleteElementNobr)
• type attribute on menu is obsolete (W3cHtml5ObsoleteAttributeMenuType)
• img with alt='' must not have role (W3cHtmlImgNullAltWithRole)
• Page has multiple autofocus elements (W3cHtmlMultipleAutofocus)
• aria-hidden not allowed on base (W3cHtml5AriaHiddenNotAllowed-base)
• aria-hidden not allowed on col (W3cHtml5AriaHiddenNotAllowed-col)
• aria-hidden not allowed on colgroup (W3cHtml5AriaHiddenNotAllowed-colgroup)
• aria-hidden not allowed on head (W3cHtml5AriaHiddenNotAllowed-head)
• aria-hidden not allowed on html (W3cHtml5AriaHiddenNotAllowed-html)
• aria-hidden not allowed on input with type=hidden (W3cHtml5AriaHiddenNotAllowed-input)
• aria-hidden not allowed on link (W3cHtml5AriaHiddenNotAllowed-link)
• aria-hidden not allowed on map (W3cHtml5AriaHiddenNotAllowed-map)
• aria-hidden not allowed on meta (W3cHtml5AriaHiddenNotAllowed-meta)
• aria-hidden not allowed on noscript (W3cHtml5AriaHiddenNotAllowed-noscript)
• aria-hidden not allowed on param (W3cHtml5AriaHiddenNotAllowed-param)
• aria-hidden not allowed on script (W3cHtml5AriaHiddenNotAllowed-script)
• aria-hidden not allowed on slot (W3cHtml5AriaHiddenNotAllowed-slot)
• aria-hidden not allowed on source (W3cHtml5AriaHiddenNotAllowed-source)
• aria-hidden not allowed on style (W3cHtml5AriaHiddenNotAllowed-style)
• aria-hidden not allowed on template (W3cHtml5AriaHiddenNotAllowed-template)
• aria-hidden not allowed on title (W3cHtml5AriaHiddenNotAllowed-title)
• aria-hidden not allowed on track (W3cHtml5AriaHiddenNotAllowed-track)
• aria-hidden not allowed on elements with hidden=until-found (W3cHtml5AriaHiddenNotAllowed-hidden-until-found)
• role=article unnecessary for article (W3cHtml5AriaExplicitRole-article)
• role=complementary unnecessary for aside (W3cHtml5AriaExplicitRole-aside)
• role=document unnecessary for body (W3cHtml5AriaExplicitRole-body)
• role=button unnecessary for button (W3cHtml5AriaExplicitRole-button)
• role=listbox unnecessary for datalist (W3cHtml5AriaExplicitRole-datalist)
• role=definition unnecessary for dd (W3cHtml5AriaExplicitRole-dd)
• role=group unnecessary for details (W3cHtml5AriaExplicitRole-details)
• role=term unnecessary for dfn (W3cHtml5AriaExplicitRole-dfn)
• role=dialog unnecessary for dialog (W3cHtml5AriaExplicitRole-dialog)
• role=term unnecessary for dt (W3cHtml5AriaExplicitRole-dt)
• role=group unnecessary for fieldset (W3cHtml5AriaExplicitRole-fieldset)
• role=figure unnecessary for figure (W3cHtml5AriaExplicitRole-figure)
• role=contentinfo unnecessary for footer (W3cHtml5AriaExplicitRole-footer-contentinfo)
• role=form unnecessary for form (W3cHtml5AriaExplicitRole-form)
• role=heading unnecessary for h1 (W3cHtml5AriaExplicitRole-h1)
• role=heading unnecessary for h2 (W3cHtml5AriaExplicitRole-h2)
• role=heading unnecessary for h3 (W3cHtml5AriaExplicitRole-h3)
• role=heading unnecessary for h4 (W3cHtml5AriaExplicitRole-h4)
• role=heading unnecessary for h5 (W3cHtml5AriaExplicitRole-h5)
• role=heading unnecessary for h6 (W3cHtml5AriaExplicitRole-h6)
• role=banner unnecessary for header (W3cHtml5AriaExplicitRole-header-banner)
• role=separator unnecessary for hr (W3cHtml5AriaExplicitRole-hr)
• role=listitem unnecessary for li (W3cHtml5AriaExplicitRole-li-listitem)
• role=link unnecessary for link (W3cHtml5AriaExplicitRole-link)
• role=main unnecessary for main (W3cHtml5AriaExplicitRole-main)
• role=math unnecessary for math (W3cHtml5AriaExplicitRole-math)
• role=navigation unnecessary for nav (W3cHtml5AriaExplicitRole-nav)
• role=list unnecessary for ol (W3cHtml5AriaExplicitRole-ol)
• role=option unnecessary for option (W3cHtml5AriaExplicitRole-option)
• role=status unnecessary for output (W3cHtml5AriaExplicitRole-output)
• role=progressbar unnecessary for progress (W3cHtml5AriaExplicitRole-progress)
• role=region unnecessary for section (W3cHtml5AriaExplicitRole-section)
• role=listbox unnecessary for select (W3cHtml5AriaExplicitRole-select-listbox)
• role=combobox unnecessary for select (W3cHtml5AriaExplicitRole-select-combobox)
• role=deletion unnecessary for s (W3cHtml5AriaExplicitRole-s)
• role=button unnecessary for summary (W3cHtml5AriaExplicitRole-summary)
• role=table unnecessary for table (W3cHtml5AriaExplicitRole-table)
• role=rowgroup unnecessary for tbody (W3cHtml5AriaExplicitRole-tbody)
• role=textbox unnecessary for textarea (W3cHtml5AriaExplicitRole-textarea)
• role=rowgroup unnecessary for tfoot (W3cHtml5AriaExplicitRole-tfoot)
• role=rowgroup unnecessary for thead (W3cHtml5AriaExplicitRole-thead)
• role=cell unnecessary for td (W3cHtml5AriaExplicitRole-td)
• role=row unnecessary for tr (W3cHtml5AriaExplicitRole-tr)
• role=list unnecessary for ul (W3cHtml5AriaExplicitRole-ul)
• role=columnheader unnecessary for th (W3cHtml5AriaExplicitRole-th)
• select only allows combobox menu and combobox roles (W3cHtml5AriaAllowedRole-select-combobox)
• meter does not need a role (W3cHtml5AriaUneededRole-meter)
• optgroup does not need a role (W3cHtml5AriaUneededRole-optgroup)
• role=button unnecessary for input type=button (W3cHtml5AriaUneededRoleForType-input-button)
• role=checkbox unnecessary for input type=checkbox (W3cHtml5AriaUneededRoleForType-input-checkbox)
• role=button unnecessary for input type=image (W3cHtml5AriaUneededRoleForType-input-image)
• role=spinbutton unnecessary for input type=number (W3cHtml5AriaUneededRoleForType-input-number)
• role=radio unnecessary for input type=radio (W3cHtml5AriaUneededRoleForType-input-radio)
• role=slider unnecessary for input type=range (W3cHtml5AriaUneededRoleForType-input-range)
• role=button unnecessary for input type=reset (W3cHtml5AriaUneededRoleForType-input-reset)
• role=button unnecessary for input type=submit (W3cHtml5AriaUneededRoleForType-input-submit)
• role=button unnecessary for button type=menu (W3cHtml5AriaUneededRoleForType-button-menu)
• role=toolbar unnecessary for menu type=toolbar (W3cHtml5AriaUneededRoleForType-menu-toolbar)
• role=textbox unnecessary for input type=email and no list attribute (W3cHtml5AriaUneededRoleForType-input-email-textbox)
• role=textbox unnecessary for input type=tel and no list attribute (W3cHtml5AriaUneededRoleForType-input-tel-textbox)
• role=textbox unnecessary for input type=text and no list attribute (W3cHtml5AriaUneededRoleForType-input-text-textbox)
• role=searchbox unnecessary for input type=search and no list attribute (W3cHtml5AriaUneededRoleForType-input-search-searchbox)
• role=textbox unnecessary for input type=url and no list attribute (W3cHtml5AriaUneededRoleForType-input-url-textbox)
• role=combobox unnecessary for input type=email and a list attribute (W3cHtml5AriaUneededRoleForType-input-email-combobox)
• role=combobox unnecessary for input type=tel and a list attribute (W3cHtml5AriaUneededRoleForType-input-tel-combobox)
• role=combobox unnecessary for input type=text and a list attribute (W3cHtml5AriaUneededRoleForType-input-text-combobox)
• role=combobox unnecessary for input type=search and a list attribute (W3cHtml5AriaUneededRoleForType-input-search-combobox)
• role=combobox unnecessary for input type=url and a list attribute (W3cHtml5AriaUneededRoleForType-input-url-combobox)
• aria-haspopup should not be used on input type=email with a list attribute (W3cHtml5AriaHasPopupRedundant-input-email)
• aria-haspopup should not be used on input type=tel with a list attribute (W3cHtml5AriaHasPopupRedundant-input-tel)
• aria-haspopup should not be used on input type=text with a list attribute (W3cHtml5AriaHasPopupRedundant-input-text)
• aria-haspopup should not be used on input type=search with a list attribute (W3cHtml5AriaHasPopupRedundant-input-search)
• aria-haspopup should not be used on input type=url with a list attribute (W3cHtml5AriaHasPopupRedundant-input-url)
• role=listitem unnecessary for li inside ol or ul (W3cHtml5AriaUneededRoleForType-li-listitem)
• role=link unnecessary for a, area and link with href (W3cHtml5AriaUneededRoleForType-href-link)
• role=combobox unnecessary for select elements with size less than two (W3cHtml5AriaUneededRoleForType-select-combobox)
• role=listbox unnecessary for select with multiple or size greater than one (W3cHtml5AriaUneededRoleForType-select-listbox)
• Non-empty img alt used with role=none or role=presentation (W3cHtml5AriaProhibitedRoleForType-img-alt)
• img with no alt cannot have a role (W3cHtml5AriaProhibitedRoleForType-img-no-alt)
• img with no alt cannot have aria- attributes (W3cHtml5AriaProhibitedAttrsForType-img-no-alt)
• role forbidden on td th and tr elements inside tables (W3cHtml5AriaProhibitedRoleWithAncestorTableRole)
• aria-colspan not needed with colspan (W3cHtml5AriaAttrWithNativeAttr-colspan)
• aria-colspan must match colspan (W3cHtml5AriaAttrMismatchWithNativeAttr-colspan)
• aria-disabled not needed with disabled (W3cHtml5AriaAttrWithNativeAttr-disabled)
• aria-disabled=false cannot be used with disabled (W3cHtml5AriaAttrFalseWithNativeAttr-disabled)
• aria-hidden not needed with hidden (W3cHtml5AriaAttrWithNativeAttr-hidden)
• aria-hidden=false cannot be used with hidden (W3cHtml5AriaAttrFalseWithNativeAttr-hidden)
• aria-readonly not needed with readonly (W3cHtml5AriaAttrWithNativeAttr-readonly)
• aria-readonly=false cannot be used with readonly (W3cHtml5AriaAttrFalseWithNativeAttr-readonly)
• aria-required not needed with required (W3cHtml5AriaAttrWithNativeAttr-required)
• aria-required=false cannot be used with required (W3cHtml5AriaAttrFalseWithNativeAttr-required)
• aria-rowspan not needed with rowspan (W3cHtml5AriaAttrWithNativeAttr-rowspan)
• aria-rowspan must match rowspan (W3cHtml5AriaAttrMismatchWithNativeAttr-rowspan)
• aria-valuemax redundant on progress (W3cHtml5AriaRedundant-progress-aria-valuemax)
• aria-valuemax redundant on meter (W3cHtml5AriaRedundant-meter-aria-valuemax)
• aria-valuemin redundant on meter (W3cHtml5AriaRedundant-meter-aria-valuemin)
• aria-valuemax redundant on input (W3cHtml5AriaRedundant-input-aria-valuemax)
• aria-valuemin redundant on input (W3cHtml5AriaRedundant-input-aria-valuemin)
• aria-multiselectable should not be used on select (W3cHtml5AriaRedundant-select-aria-multiselectable)
• aria-selected should not be used on option (W3cHtml5AriaRedundant-option-aria-selected)
• ARIA global property used on prohibited role (W3cAriaGlobalRoleProhibited)
• directory role is deprecated (W3cAriaDeprecatedRoleDirectory)
• Active role=tab without role=tabpanel (W3cAriaTabWithoutTabpanel)
• HTML info message (W3cHtml5Info)
• Invalid aria-controls value (W3cHtml5Error-RnvErAval-aria-controls)
• Unknown value for rel (W3cHtml5Info-RnvErAval-rel)

Usability

• Provide page titles (UsePageNoTitle)
• Use descriptive page titles (UsePagePlaceholderTitle)
• Use descriptive link text (UseLinkTextAmbiguous)
• Avoid underlined text (UseUnderlinedText)
• Use at least a 12-point font (UseFontTooSmall)
• Label buttons clearly (UseButtonUnclearLabel)
• Never use a lone radio button (UseSingleRadioButton)
• Ensure images do not cause layout shifts (UseImgWidthHeight)