Content notfound notfound notfound notfound Content identified by location
Content notfound notfound error_paid notfound Plain language is not used
Content notfound notfound notfound notfound Content is not in correct reading order in source code
Content notfound notfound notfound notfound Content is not organised into well-defined groups or chunks, using headings, lists, and other visual mechanisms
Content notfound notfound error_paid notfound First instance of abbreviation not expanded
Layout notfound notfound notfound notfound Wide page forces users to scroll horizontally
Colour/Contrast notfound notfound notfound manual Colour alone is used to convey content
Colour/Contrast error error error_paid notfound Small text does not have a contrast ratio of at least 4.5:1 so does not meet AA
Colour/Contrast error error error_paid notfound Large text does not have a contrast ratio of at least 3:1 so does not meet AA
Colour/Contrast error error error_paid notfound Small text does not have a contrast ratio of at least 7:1 so does not meet AAA
Colour/Contrast error error error_paid notfound Large text does not have a contrast ratio of at least 4.5:1 so does not meet AAA
Colour/Contrast notfound notfound notfound notfound Focus not visible
Typography notfound notfound notfound notfound Inadequate line height used
Typography notfound notfound notfound warning All caps text found
Typography notfound error error warning Blink element found
Typography notfound notfound notfound warning Italics used on long sections of text
Typography notfound error error notfound Marquee element found
Typography notfound notfound notfound notfound Long lines of text
Typography notfound warning error error Very small text found
Typography notfound warning notfound notfound Justified text found
Language notfound notfound notfound notfound Text language changed without required change in direction
Language error notfound error error html element has an empty lang attribute
Language notfound notfound notfound notfound lang attribute not used to identify change of language
Language notfound notfound notfound notfound Text language is in the wrong direction
Language notfound notfound error notfound html element has an invalid value in the lang attribute
Language notfound manual error notfound lang attribute used to identify change of language, but with invalid value
Language error error error error html element is missing a lang attribute
Language notfound notfound notfound notfound html element has lang attribute set to wrong language
Language notfound notfound notfound notfound lang attribute used to identify change of language, but with wrong language
Title notfound notfound notfound notfound Inappropriate page title
Title error error error error Empty page title
Title error error error error Missing page title
Headings notfound error error error Empty heading
Headings notfound warning error error Missing H1
Headings notfound notfound notfound notfound Text formatting used instead of an actual heading
Headings notfound warning notfound error Headings not structured in a hierarchical manner
Lists notfound notfound error notfound LI element with no parent
Lists notfound notfound notfound notfound List not marked up as a list
Lists notfound notfound error notfound DT or DD elements that are not contained within a DL element
Lists notfound notfound error notfound Improperly nested lists
Tables notfound manual error notfound Table with column headers and double row headers
Tables notfound manual notfound notfound Table has no scope attributes
Tables notfound notfound error notfound Table nested within table header
Tables notfound notfound error notfound Table nested within table
Tables error manual error error Table has no table headings
Tables notfound notfound notfound notfound Table with inconsistent numbers of columns in rows
Tables notfound notfound notfound notfound Table that only has TH elements in it
Tables notfound manual notfound error Table is missing a caption
Tables notfound identified error notfound Table used for layout
Tables notfound error notfound notfound Table has an empty table header
Tables notfound notfound notfound notfound Table with some empty cells
Images notfound notfound notfound notfound Image has alt and title that are different
Images notfound notfound error notfound Image with presentation role has non-empty alt
Images error error error error Image with no alt attribute
Images notfound notfound notfound manual Background image that conveys information does not have a text alternative
Images notfound notfound error error Image has empty alt and non-empty title
Images notfound notfound error notfound A distraction is present, an animated gif
Images notfound manual notfound manual Image that conveys information has an empty alt attribute
Images notfound manual notfound manual Image that conveys information has inappropriate alt text
Images notfound warning error manual Image alt attribute contains image file name
Images notfound manual notfound manual Image with partial text alternative
Multimedia notfound manual notfound error Embedded video file is missing text alternative
Multimedia notfound notfound notfound notfound Flashing content doesn't have warning
Multimedia notfound manual notfound error Embedded audio file is missing text alternative
Links error error error error Image link with no alternative text
Links notfound notfound notfound manual Link to javascript, invalid hypertext reference
Links notfound warning error notfound Uninformative link text
Links notfound notfound error_paid warning Link launches new window with no warning
Links notfound notfound notfound notfound Links not separated by printable characters
Links notfound warning notfound notfound Link text with identical title
Links notfound warning notfound notfound Links to a sound file, no transcript
Links notfound notfound notfound notfound Identifying links by colour alone
Links notfound warning notfound notfound Link to PDF does not include information on file format and file size
Links notfound notfound notfound manual Link to #, invalid hypertext reference
Links error error error error Blank link text
Links notfound notfound notfound notfound Links with the same text go to different pages
Links error notfound notfound notfound Link text does not make sense out of context
Links notfound warning error notfound Adjacent links going to the same destination
Links error notfound notfound notfound Link contains only a full stop
Links notfound warning error notfound Image link alt text repeats text in the link
Links notfound notfound notfound notfound Link not clearly identifiable and distinguishable from surrounding text
Links notfound warning notfound notfound Link to a multimedia file, no transcript
Links error warning error error Non-specific link text
Links notfound notfound notfound notfound Link to an image, no text alternative
Buttons error error error error Image button has no alt attribute
Buttons error error error identified Empty button
Buttons notfound manual notfound manual Uninformative alt attribute value on image button
Buttons notfound error error error Empty alt attribute on image button
Forms notfound notfound notfound manual Errors identified by colour only
Forms notfound error error error Labels missing when they would look clumsy for some form controls
Forms notfound notfound notfound notfound Error messages - no suggestion for corrections given, e.g. required format
Forms notfound notfound notfound notfound Left aligned form labels with too much white space
Forms notfound warning error error Group of radio buttons not enclosed in a fieldset
Forms error error error error Form element has no label
Forms notfound warning notfound notfound Fieldset without a legend
Forms notfound notfound notfound identified Empty legend
Forms error error error error Label element with for= attribute but not matching id= attribute of form control
Forms notfound warning notfound error Group of check boxes not enclosed in a fieldset
Forms notfound error error error Empty label found
Forms notfound error notfound notfound Two unique labels, but identical for= attributes
Forms warning error error error Errors identified with a poor colour contrast
Forms notfound notfound error notfound Non-unique field label found
Forms error error error error Missing labels in checkboxes
Forms notfound notfound notfound notfound Field hint not associated with input
Forms error error error error Placeholder no label
Forms notfound notfound notfound notfound Errors are not identified
Forms notfound notfound notfound notfound Form control that changes context without warning
Navigation notfound notfound notfound notfound Inadequately-sized clickable targets found
Keyboard notfound notfound notfound notfound Alert shows for a short time
Keyboard notfound notfound notfound notfound Lightbox - close button doesn't receive focus
Keyboard notfound notfound notfound notfound Focus order in wrong order
Keyboard error warning notfound warning Tabindex greater than 0
Keyboard notfound notfound error error Keyboard focus is not indicated visually
Keyboard notfound manual notfound notfound Keyboard focus assigned to a non focusable element using tabindex=0
Keyboard notfound notfound notfound notfound Concertina items don't get keyboard focus
Keyboard notfound notfound notfound notfound Keyboard trap
Keyboard notfound notfound notfound notfound Dropdown navigation - only the top level items receive focus
Keyboard notfound notfound notfound notfound Lightbox - ESC key doesn't close the lightbox
Keyboard notfound notfound notfound error Link with a role=button does not work with space bar
Keyboard notfound notfound notfound notfound Tooltips don't receive keyboard focus
Keyboard notfound warning notfound notfound Accesskey attribute used
Keyboard notfound notfound notfound notfound Lightbox - focus is not moved immediately to lightbox
Keyboard notfound notfound notfound notfound Lightbox - focus is not retained within the lightbox
Keyboard notfound notfound notfound notfound Fake button is not keyboard accessible
Frames notfound notfound error error iframe is missing a title attribute
Frames notfound notfound notfound notfound iframe title attribute does not describe the content or purpose of the iframe
CSS notfound notfound notfound notfound Content is not readable and functional when text is increased
CSS notfound notfound error notfound Non-decorative content inserted using CSS
CSS notfound notfound notfound notfound visibility:hidden used to visually hide content when it should be available to screenreader
CSS notfound notfound notfound notfound display:none used to visually hide content when it should be available to screenreader
CSS notfound notfound notfound notfound Page zoom - boxes that don't expand with the text
HTML notfound notfound error error Duplicate id
HTML notfound notfound notfound notfound Article element used to mark-up an element that's not an article/blog post etc.
HTML notfound notfound notfound identified Empty paragraph
HTML notfound notfound error warning Deprecated center element
HTML error notfound error error Invalid ARIA role names
HTML notfound notfound notfound notfound Object not embedded accessibly - wmode parameter not set to window
HTML notfound identified notfound notfound Spacer image found
HTML notfound notfound notfound notfound Inline style adds colour
HTML notfound notfound error notfound Start and close tags don't match
HTML notfound notfound notfound notfound PRE element without CODE element inside it
HTML notfound notfound error warning Deprecated font element