Live targets

Native details elements alongside an ARIA accordion, one keeping its content in the DOM while closed and one removing it.

A page with banner, navigation, main, complementary, and contentinfo landmarks for a11y tooling.

Polite, assertive and off live regions updating on a timer and on demand, plus an atomic region and a busy one.

A tab list with manual activation, roving tabindex, and panels that only exist in the DOM once their tab has been opened.

Arabic and Hebrew paragraphs with embedded Latin and digits, including isolated and overridden runs, for testing text order extraction.

A modal that appears after a short delay, traps focus, cannot be dismissed with Escape, and blocks every control behind it.

Text painted into a canvas, invisible to the DOM and to text extraction, with an accessible fallback stated alongside it.

Numbered pages rendered from a local array, where only the current page exists in the DOM and the URL never changes.

A four-step form held entirely in memory, where the URL never changes and going back is a state transition rather than navigation.

A rich-text region built on contenteditable, where typing has to be simulated with key events rather than a value assignment.

Consent banner with Accept / Reject for CMP and banner-dismissal tests.

Text that exists only in CSS pseudo-element content, counters and attribute functions, so it is visible but not in the markup.

A native select and an ARIA listbox built from div elements, side by side, with the same options and the same result.

Five levels of same-document iframes, each labelled with its depth, for frame-walking and frame-switching automation.

Content that arrives in four stages after first paint, each stage announcing itself, for testing waits that are not network-bound.

Every control in enabled, readonly, disabled and aria-disabled variants, so the difference between them is testable in one place.

A sortable list using the HTML5 drag-and-drop API, with a keyboard path that produces the same result.

Eight ways to hide text, each hiding it from a different audience, so no single extraction rule gets all eight right.

Drag-and-drop / file-picker zone that lists filenames locally for upload-UX automation.

Page that forces a dark color scheme for theme and contrast tooling tests.

Page that forces a light color scheme for theme and contrast tooling tests.

View state kept in the URL fragment, so the back button works but no navigation or request ever happens.

Text that exists only while a control is hovered or focused, so it never appears in the served HTML or in a plain screenshot.

Icon fonts, emoji and inline SVG marks side by side, so a text scrape returns private-use characters where a person sees a picture.

Parent page with nested srcDoc iframes for frame-walking and focus tests.

The same frame document embedded under four different sandbox allow-lists, so a tool can see which capabilities each one grants.

Append-only list with a sentinel for scroll and virtualization scraper tests.

A menubar with roving tabindex, so only one item is tabbable and the arrow keys move focus between the rest.

Sections revealed by an IntersectionObserver plus natively lazy iframes, so nothing below the fold exists until it is scrolled to.

A form that validates as you type, moving aria-invalid and error text in and out of the DOM on every keystroke.

Open a dialog that opens another, focus trap and Escape stacking for a11y tooling.

A field that accepts pasted text and rejects typed characters, so a key-by-key automation gets an empty control.

Shapes dragged around a canvas with pointer events, where the only readable state is a text read-out rather than the DOM.

Buttons under transparent overlays, one of which swallows clicks and one of which lets them through, for testing element-from-point checks.

A page with screen-only chrome and print-only content for print CSS testing.

A panel that locks page scrolling while it is open, so scroll-into-view calls silently do nothing until it closes.

Sticky section nav driven by IntersectionObserver for scroll-spy and in-page nav tests.

Open, nested and closed shadow roots holding text and controls, for testing selectors that have to pierce a shadow boundary.

Form controls living inside a shadow root, including one that participates in the outer form through the element internals API.

A form laid out like a sign-in page that accepts any input, checks nothing, keeps nothing, and grants access to nothing.

Skeleton blocks that swap for real content, where the placeholder has the same shape and size as the text that replaces it.

Range inputs with coarse, fine and non-linear steps, where reaching an exact value by dragging is impractical.

Delayed content hydration for loading-state and timeout tooling tests.

A sticky header and footer that cover parts of the page, so a click at an element's reported coordinates can land on the bar instead.

A table that grows by one row every 400 ms up to fifty rows, so a scraper reading it once gets a different answer each time.

Text inside SVG as tspans, along a path, and inside a nested SVG, which text extraction reaches only if it walks into the graphic.

Interactive SAMPLE table with column sort and text/category filters for scraper and a11y table tooling.

Wording that exists only in an accessible name or description, never as visible text, for testing accessibility-tree extraction.

Transient messages that appear and remove themselves after a few seconds, so a slow assertion misses them entirely.

An autocomplete whose suggestions appear after a debounce, are built from a local list, and never reach a network.

A ten-thousand row list that keeps only the visible window in the DOM, so row 9,000 has to be scrolled to before it can be read.

Custom elements with named slots, an attribute-driven re-render, and light DOM that only appears once the element upgrades.