Explore the checks behind a scan.

Symbol-only spans (›, •, →, etc.) exposed to screen readers.

Font Awesome / Material icons rendered without aria-label or visible text.

::before/::after content carrying meaningful text screen readers may miss.

Links with vague text ("click here", "read more", "learn more").

CSS flexbox/grid `order` or absolute positioning that diverges from DOM/tab order.

Interactive elements smaller than 24×24 px.

Element with overflow:auto/scroll but no tabindex — keyboard users can't scroll.

Email/name/phone/address fields without autocomplete attributes.

:focus styles that don't produce a visible change.

font-size/line-height/letter-spacing locked with !important blocks user spacing overrides.

UI component borders/backgrounds with insufficient contrast against the surrounding background.

<input> with placeholder but no <label>, aria-label, or aria-labelledby.

Large/bold text styled like a heading but not in <h1>–<h6>.

<h1>–<h6> used inline or with smaller fonts than surrounding text.

Inline links with no underline AND <3:1 contrast against surrounding text AND no bold/italic.

Click handler on element with no role, no tabindex, no keyboard handler.

:focus { outline: none/0 } without an alternative focus indicator.

Element with aria-hidden="true" containing focusable descendants — keyboard reaches them, screen readers don't.

aria-labelledby / aria-describedby / aria-controls / aria-owns pointing at non-existent IDs.

Focused element behind position:fixed/sticky overlay.

Site-crawl-only: <nav> link order changes between pages.

Site-crawl-only: same href reached by different accessible names on different pages.

<input type="password"> without an adjacent reveal control.

Breadcrumb pattern without aria-label, missing aria-current="page", or not inside <nav>.

Button with aria-label but no visible text — voice-control users speaking the visual label can't activate it.

Carousel without prev/next labels, missing pagination semantics, or auto-advance with no pause.

CSS animation with iteration-count: infinite and no pause control. Also <marquee>.

<a target="_blank"> without visible indicator or aria-label noting the new-tab behavior.

Horizontal scroll required at 320px viewport width (only fires when innerWidth ≤ 320).

history.pushState / hashchange without programmatic focus move.

CSS animations without `@media (prefers-reduced-motion: reduce)`.

Small interactive element (<24px) whose virtual 24px circle overlaps a neighbor.

Alt text matching filename, containing "image of/photo of", or just the file extension.

Element with aria-hidden="true" but visually rendered AND >3 chars of meaningful text.

Container with overflow:hidden whose scrollSize exceeds clientSize — content invisible and unreachable.

Probe-injected WCAG 1.4.12 text-spacing styles cause overflow:hidden text containers to clip.

Error-styled element near a form field with no aria-describedby / aria-errormessage link.

Element with opacity:0 + meaningful text but no aria-hidden — invisible to sighted, announced by AT.

Focusable element occluded at its center by a different element — Tab reaches it but pointer can't.

Interactive element with pointer-events:none but no `disabled` / `aria-disabled="true"`.

role="dialog"/"alertdialog" with aria-modal="true" but no aria-label/labelledby OR no focusable descendants.

aria-label that doesn't include the visible text — voice-control activation fails.

Element has linear/radial/conic-gradient background AND own text content — contrast may fail at gradient stops.

Text color uses rgba()/hsla() with alpha < 1 — effective contrast depends on backdrop blend.

<video autoplay> / <audio autoplay> without `controls` and not muted.

Heading / button / link / label / <th> with no text, no aria-label, no resolvable aria-labelledby, no img[alt].

Any element with tabindex > 0 — reorders the natural focus sequence.

<table> with no <th>, no <caption>, no role=presentation/none, AND block-level cell content.

<img src="*.gif"> — animation can't be detected statically; flagged for manual review.

Interactive element relies solely on title= for its accessible name — unreliable on touch.

[draggable="true"] without aria-grabbed + nearby move buttons or role=button + tabindex.

Page has no <main> and no [role="main"].

Two adjacent <a> elements with identical href — produces two tab stops to the same destination.

<a href="#fragment"> where no element with that id (and not name) exists on the page.

<label> says "*" or "required" but the input has no `required` and no aria-required="true".

Input aria-invalid="true" with no programmatic error text and no adjacent error-worded sibling.

<a> to .pdf / .doc(x) / .xls(x) / .ppt(x) whose text + aria-label give no format hint.

Container with id/class matching `(status|error|message|notification|toast|alert)` but no aria-live and no role=status/alert/log.

Inline <svg> with shape children (rect/circle/line/polygon/polyline/path/ellipse) and no <title>, aria-label, resolvable aria-labelledby, or <figcaption>.

Small element (≤80×80px) with semantic color (red/green/amber) AND no text or only a decorative glyph AND no aria-label.

<iframe> without a `title` or `aria-label`.

Element class matches `(modal|dialog|drawer|popup|popover|lightbox)` and is visible AND lacks role="dialog"/"alertdialog".

Page missing <h1>, OR heading levels skip (h1→h3), OR multiple <h1> elements.

<table> with <td> rows but no <th> and no <caption>.

<th> without scope="col"/"row"/"colgroup"/"rowgroup" AND not referenced by any `headers=` attribute.

div/span/li/td/p with cursor:pointer AND no role/tabindex/keyboard handler AND not nested in real interactive element.

Standalone emoji (≤4 chars) in inline element (≤100×60px) without aria-hidden="true" and without aria-label.

Paragraph starts with bullet glyph (•/●/✓) outside <ul>/<ol>, OR container has 3+ child <div>s with shared class outside list semantics.

Button/link/role=button with class or id matching disclosure keyword (accordion/disclosure/toggle/collapsible/expand) AND no aria-expanded.

Multiple <form>s on the page; one with ≥2 controls but no aria-label/aria-labelledby/title.

<a> without href (and without legacy `name` and without role override). Not focusable, not announced as link.

Element with literal onclick attribute that isn't button/a[href]/input/select/textarea/role=button.

<a href="javascript:..."> or <a href="#"> / <a href="#!"> placeholder.

Ensure <area> elements of image maps have alternative text

Ensure an element's role supports its ARIA attributes

Ensure aria-braillelabel and aria-brailleroledescription have a non-braille equivalent

Ensure every ARIA button, link and menuitem has an accessible name

Ensure ARIA attributes are used as described in the specification of the element's role

Ensure elements do not use deprecated roles

Ensure aria-hidden="true" is not present on the document body.

Ensure aria-hidden elements are not focusable nor contain focusable elements

Ensure every ARIA input field has an accessible name

Ensure every ARIA meter node has an accessible name

Ensure every ARIA progressbar node has an accessible name

Ensure ARIA attributes are not prohibited for an element's role

Ensure elements with ARIA roles have all required ARIA attributes

Ensure elements with an ARIA role that require child roles contain them

Ensure elements with an ARIA role that require parent roles are contained by them

Ensure aria-roledescription is only used on elements with an implicit or explicit role

Ensure all elements with a role attribute use a valid value

Ensure every ARIA toggle field has an accessible name

Ensure every ARIA tooltip node has an accessible name

Ensure all ARIA attributes have valid values

Ensure attributes that begin with aria- are valid ARIA attributes

Ensure <audio> elements have captions

Ensure the autocomplete attribute is correct and suitable for the form field

Ensure that text spacing set through style attributes can be adjusted with custom stylesheets

Ensure <blink> elements are not used

Ensure buttons have discernible text

Ensure each page has at least one mechanism for a user to bypass navigation and jump straight to the content

Ensure the contrast between foreground and background colors meets WCAG 2 AAA enhanced contrast ratio thresholds

Ensure the contrast between foreground and background colors meets WCAG 2 AA minimum contrast ratio thresholds

Ensure content is not locked to any specific display orientation, and the content is operable in all display orientations

Ensure <dl> elements are structured correctly

Ensure <dt> and <dd> elements are contained by a <dl>

Ensure each HTML document contains a non-empty <title> element

Ensure every id attribute value used in ARIA and in labels is unique

Ensure form field does not have multiple label elements

Ensure <frame> and <iframe> elements with focusable content do not have tabindex=-1

Ensure <iframe> and <frame> elements contain a unique title attribute

Ensure <iframe> and <frame> elements have an accessible name

Ensure every HTML document has a lang attribute

Ensure the lang attribute of the <html> element has a valid value

Ensure that HTML elements with both valid lang and xml:lang attributes agree on the base language of the page

Ensure that links with the same accessible name serve a similar purpose

Ensure <img> elements have alternative text or a role of none or presentation

Ensure input buttons have discernible text

Ensure <input type="image"> elements have alternative text

Ensure that elements labelled through their content must have their visible text as part of their accessible name

Ensure every form element has a label

Ensure links are distinguished from surrounding text in a way that does not rely on color

Ensure links have discernible text

Ensure that lists are structured correctly

Ensure <li> elements are used semantically

Ensure <marquee> elements are not used

Ensure <meta http-equiv="refresh"> is not used for delayed refresh

Ensure <meta http-equiv="refresh"> is not used for delayed refresh

Ensure <meta name="viewport"> does not disable text scaling and zooming

Ensure interactive controls are not nested as they are not always announced by screen readers or can cause focus problems for assistive technologies

Ensure <video> or <audio> elements do not autoplay audio for more than 3 seconds without a control mechanism to stop or mute the audio

Ensure <object> elements have alternative text

Ensure bold, italic text and font-size is not used to style <p> elements as a heading

Ensure [role="img"] elements have alternative text

Ensure elements that have scrollable content are accessible by keyboard in Safari

Ensure select element has an accessible name

Ensure that server-side image maps are not used

Ensure summary elements have discernible text

Ensure <svg> elements with an img, graphics-document or graphics-symbol role have accessible text

Ensure that tables with a caption use the <caption> element.

Ensure touch targets have sufficient size and space

Ensure that each non-empty data cell in a <table> larger than 3 by 3 has one or more table headers

Ensure that each cell in a table that uses the headers attribute refers only to other <th> elements in that table

Ensure that <th> elements and elements with role=columnheader/rowheader have data cells they describe

Ensure lang attributes have valid values

Ensure <video> elements have captions