Accessibility
· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.DLandmark StructureActionNo landmarksFIX
No landmarks detected
Screen reader users have no way to navigate by region.
Screen reader users cannot quickly navigate to the primary content. Wrap your main content in <main>.
Without a <main> landmark, screen-reader users can't skip past the navigation to the page content — every page starts with re-reading the menu.
Learn more ▾ ▴
The <main> element marks the page's primary content area. Assistive tech offers a 'jump to main' shortcut — but only if <main> exists. Without it, every page navigation forces re-reading the header. Wrap your primary content in a single <main>.
Source: WAI-ARIA / WCAG 2.4.1
Add a skip link as the first focusable element so keyboard users can bypass repeated navigation.
Without a skip-nav link, keyboard users tab through every nav item before reaching content — every page, every visit.
Learn more ▾ ▴
WCAG 2.4.1 (Bypass Blocks) requires a mechanism to skip past repeated content. The standard implementation is a 'Skip to main content' link that's the first focusable element, visually hidden until focused. Three lines of HTML + four of CSS.
Source: WCAG 2.1 SC 2.4.1
FAlt Text QualityAction8 of 40 images have issuesFIX
| Issue | Count |
|---|---|
| missing | 8 image(s) |
Images without alt text are invisible to screen readers.
Each image without alt text is a WCAG 1.1.1 failure — invisible to screen-reader users, lost from Google Image Search.
Learn more ▾ ▴
WCAG 2.1 Level A requires text alternatives for non-decorative images. Empty alt='' is fine for decorative; meaningful images need descriptive text. Common fixes: CMS audit + bulk add, build-time linter (alt-text-required ESLint rule), CI gate on Lighthouse a11y score.
Source: WCAG 2.1 SC 1.1.1 / WebAIM Million Report
An image inside a link with no alt creates an empty link.
Image-only links with no alt create empty links — screen-reader users hear 'link' with no destination context.
Learn more ▾ ▴
An <a><img></a> with no img alt is the worst-case for accessibility: AT announces the link but can't describe where it goes. Either add alt to the image OR add aria-label to the link.
Source: WCAG 2.1 SC 2.4.4
DForm AccessibilityAction6 of 6 controls have issuesFIX
| Control | Type | Label | Method |
|---|---|---|---|
| #s | text | (Spiele suchen...) | placeholder only |
| #comment | textarea | (einen Kommentar hinterlassen...) | placeholder only |
| #author | text | (Name) | placeholder only |
| text | (e-mail) | placeholder only | |
| #search_submit | submit | (none) | none |
| input | submit | (none) | none |
Form controls need a <label>, aria-label, or aria-labelledby for screen readers.
<input type="submit" id="search_submit">; <input type="submit">
Form controls without labels — assistive tech announces 'edit text' with no context; users can't complete forms.
Source: WCAG 2.1 SC 3.3.2
Placeholder text disappears on focus and is not a reliable label.
<input type="text" name="s" id="s">; <textarea name="comment" id="comment">; <input type="text" name="author" id="author">; <input type="text" name="email" id="email">
Placeholder-only labels disappear when the user starts typing — they must remember what the field was for.
Learn more ▾ ▴
Placeholders are NOT labels. They vanish on input, fail color contrast checks (most are gray), and don't satisfy WCAG SC 3.3.2. Always use a real <label> alongside (or aria-labelledby).
Source: WCAG 2.1 SC 3.3.2 / Nielsen Norman
FLink & Button QualityAction46 issue(s) across 153 links and 12 buttonsFIX
| Element | Text | Issue | Suggested Fix |
|---|---|---|---|
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| / | (empty) | empty | Add link text or aria-label |
| /wp-content/uploads/2020/02/1_Screen_800… | <img src="/wp-content/uploads/… | img no alt | Add alt attribute to the image |
| /wp-content/uploads/2020/02/2_Screen_800… | <img src="/wp-content/uploads/… | img no alt | Add alt attribute to the image |
| /wp-content/uploads/2020/02/3_Screen_800… | <img src="/wp-content/uploads/… | img no alt | Add alt attribute to the image |
| https://bookofra-play.com/bgo-casino-ver… | (empty) | empty | Add link text or aria-label |
| https://bookofra-play.com/casino-uebersi… | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| (empty) | empty | Add link text or aria-label | |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| <input> | (empty) | empty | Add button text or aria-label |
| <button> | (empty) | empty | Add button text or aria-label |
| <button> | (empty) | empty | Add button text or aria-label |
| <button> | (empty) | empty | Add button text or aria-label |
| <button> | (empty) | empty | Add button text or aria-label |
| <button> | (empty) | empty | Add button text or aria-label |
| <button> | (empty) | empty | Add button text or aria-label |
| <button> | (empty) | empty | Add button text or aria-label |
| <button> | (empty) | empty | Add button text or aria-label |
| <button> | (empty) | empty | Add button text or aria-label |
Links without text are announced as raw URLs by screen readers.
#; #; #; /; https://bookofra-play.com/bgo-casino-verlost-e-2-000-als-urlaubsgutschein/; https://bookofra-play.com/casino-uebersicht/; #; #; #; a (#797 on page) (+26 more)
Links with no accessible text (empty <a></a>, image-only no alt, icon-only no aria-label) are unidentifiable to screen readers.
Source: WCAG 2.1 SC 2.4.4
Image-only links need alt text on the image (or aria-label on the link) so screen readers can announce them.
a[href="/wp-content/uploads/2020/02/1_Screen_800x6001.jpg"]; a[href="/wp-content/uploads/2020/02/2_Screen_800x6001.jpg"]; a[href="/wp-content/uploads/2020/02/3_Screen_800x6001.jpg"]
Image-only links with no alt are unidentifiable to screen-reader users — link's destination is invisible.
Source: WCAG 2.1 SC 2.4.4
Icon-only buttons need an aria-label so screen readers can announce them.
input[type="submit"]#search_submit; button.box_faq__btn (#495 on page); button.box_faq__btn (#503 on page); button.box_faq__btn (#520 on page); button.box_faq__btn (#529 on page); button.box_faq__btn (#539 on page); button.box_faq__btn (#548 on page); button.box_faq__btn (#557 on page); button.box_faq__btn (#566 on page); button.box_faq__btn (#576 on page)
Buttons with no accessible text (icon-only, no aria-label) can't be activated by voice control or understood by screen readers.
Source: WCAG 2.1 SC 4.1.2
FFavicon & BrandingAction1 icon(s) detectedFIX
DWeb ManifestActionNot foundFIX
No web manifest found.
DDark Mode SupportActionNo dark mode signalsFIX
Detection limited to meta tags and inline styles.
DPrint StylesheetActionNo print stylesFIX
DLighthouse Accessibility AuditsActionScore 63/100 — 9 failing, 15 passedFIX
Accessibility
These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.
ARIA
Each ARIA `role` supports a specific subset of `aria-*` attributes. Mismatching these invalidates the `aria-*` attributes. Learn how to match ARIA attributes to their roles.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
INHALTSVERZEICHNIS div.content > div#js-move-contents-out > div.c-tb-content > div.c-tb-content__title |
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Names and labels
When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn |
div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn |
div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn |
div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn |
div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn |
div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn |
div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn |
div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn |
div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > button.box_faq__btn |
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.one_item > div.img > a.fancybox-media > img.lazy div.one_item > div.img > a.fancybox-media > img.lazy |
div.one_item > div.img > a.fancybox-media > img.lazy div.one_item > div.img > a.fancybox-media > img.lazy |
div.one_item > div.img > a.fancybox-media > img.lazy div.one_item > div.img > a.fancybox-media > img.lazy |
div.one_box > div.cell_detail > div.logo > img.data-original div.one_box > div.cell_detail > div.logo > img.data-original |
div.one_box > div.cell_detail > div.logo > img.data-original div.one_box > div.cell_detail > div.logo > img.data-original |
div.one_box > div.cell_detail > div.logo > img.data-original div.one_box > div.cell_detail > div.logo > img.data-original |
div.one_box > div.cell_detail > div.logo > img.data-original div.one_box > div.cell_detail > div.logo > img.data-original |
div.one_box > div.cell_detail > div.logo > img.data-original div.one_box > div.cell_detail > div.logo > img.data-original |
Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.box_iframe_1 > div.box_game > div.game_container > a.home div.box_iframe_1 > div.box_game > div.game_container > a.home |
div.owl-item > div.one_item > div.img > a.fancybox-media div.owl-item > div.one_item > div.img > a.fancybox-media |
div.owl-item > div.one_item > div.img > a.fancybox-media div.owl-item > div.one_item > div.img > a.fancybox-media |
div.owl-item > div.one_item > div.img > a.fancybox-media div.owl-item > div.one_item > div.img > a.fancybox-media |
div.c-blog-box > div.c-blog-box__item > div.c-one-blog > a.c-one-blog__img div.c-blog-box > div.c-blog-box__item > div.c-one-blog > a.c-one-blog__img |
div.c-blog-box > div.c-blog-box__item > div.c-one-blog > a.c-one-blog__img div.c-blog-box > div.c-blog-box__item > div.c-one-blog > a.c-one-blog__img |
div.foot_comment > div.one_it > div.ssk-group > a.ssk div.foot_comment > div.one_it > div.ssk-group > a.ssk |
div.foot_comment > div.one_it > div.ssk-group > a.ssk div.foot_comment > div.one_it > div.ssk-group > a.ssk |
div.foot_comment > div.one_it > div.ssk-group > a.ssk div.foot_comment > div.one_it > div.ssk-group > a.ssk |
div.foot_comment > div.one_it > div.ssk-group > a.ssk div.foot_comment > div.one_it > div.ssk-group > a.ssk |
div.foot_comment > div.one_it > div.ssk-group > a.ssk div.foot_comment > div.one_it > div.ssk-group > a.ssk |
div.foot_comment > div.one_it > div.ssk-group > a.ssk div.foot_comment > div.one_it > div.ssk-group > a.ssk |
div.foot_comment > div.one_it > div.ssk-group > a.ssk div.foot_comment > div.one_it > div.ssk-group > a.ssk |
div.foot_comment > div.one_it > div.ssk-group > a.ssk div.foot_comment > div.one_it > div.ssk-group > a.ssk |
div.foot_comment > div.one_it > div.ssk-group > a.ssk div.foot_comment > div.one_it > div.ssk-group > a.ssk |
div.foot_comment > div.one_it > div.ssk-group > a.ssk div.foot_comment > div.one_it > div.ssk-group > a.ssk |
div.foot_comment > div.one_it > div.ssk-group > a.ssk div.foot_comment > div.one_it > div.ssk-group > a.ssk |
div.foot_comment > div.one_it > div.ssk-group > a.ssk div.foot_comment > div.one_it > div.ssk-group > a.ssk |
div.textwidget > div.one_box > div.cell_detail > a.btn_paly div.textwidget > div.one_box > div.cell_detail > a.btn_paly |
div.textwidget > div.one_box > div.cell_detail > a.btn_paly div.textwidget > div.one_box > div.cell_detail > a.btn_paly |
div.textwidget > div.one_box > div.cell_detail > a.btn_paly div.textwidget > div.one_box > div.cell_detail > a.btn_paly |
div.textwidget > div.one_box > div.cell_detail > a.btn_paly div.textwidget > div.one_box > div.cell_detail > a.btn_paly |
div.textwidget > div.one_box > div.cell_detail > a.btn_paly div.textwidget > div.one_box > div.cell_detail > a.btn_paly |
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Contrast
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Wo kann man Book of Ra Online spielen? div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > h4.box_faq__title |
Bietet Book of Ra einen Jackpot? div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > h4.box_faq__title |
Kann man Book of Ra in Deutschland um Echtgeld spielen? div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > h4.box_faq__title |
Worin unterscheidet sich Book of Ra Deluxe vom Klassiker? div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > h4.box_faq__title |
Kann ich Book of Ra Online Software zum Herunterladen finden? div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > h4.box_faq__title |
div.input_group > div.section_1 > div.col_60 > input#author div.input_group > div.section_1 > div.col_60 > input#author |
div.input_group > div.section_2 > div.col_60 > input#email div.input_group > div.section_2 > div.col_60 > input#email |
Gor div.container_comments > div.comment > div.head_comment > div.one_it |
Jun 28, 2023 div.container_comments > div.comment > div.head_comment > div.one_it |
cat333 div.container_comments > div.comment > div.head_comment > div.one_it |
Apr 17, 2023 div.container_comments > div.comment > div.head_comment > div.one_it |
Mint div.container_comments > div.comment > div.head_comment > div.one_it |
Mrz 15, 2023 div.container_comments > div.comment > div.head_comment > div.one_it |
Ruth div.container_comments > div.comment > div.head_comment > div.one_it |
Feb 11, 2023 div.container_comments > div.comment > div.head_comment > div.one_it |
These are opportunities to improve the legibility of your content.
Navigation
Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Wo kann man Book of Ra Online spielen? div.box_faq__item > div.box_faq__item-inner > div.box_faq__head > h4.box_faq__title |
These are opportunities to improve keyboard navigation in your application.
Internationalization and localization
If a page doesn't specify a `lang` attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn more about the `lang` attribute.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
html html |
These are opportunities to improve the interpretation of your content by users in different locales.
Best practices
Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.
Informational: a Permissions-Policy directive showing feature -> allowed origins.
Source: MDN Permissions-Policy
| Failing Elements |
|---|
head > meta head > meta |
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
html html |
These items highlight common accessibility best practices.
B404 Error PageHTTP 404, custom pageREVIEW
CColor Contrast (Screenshot)Action20 text elements analyzed, 20 fail WCAG AAREVIEW
Analyzes text contrast against the actual rendered page, including background images, gradients, and overlays that CSS-based tools cannot detect.
Show all checked elements (20)
| Element | Ratio | Required | FG | BG | Result |
|---|---|---|---|---|---|
| h1 Book Of Ra Spielen O… | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h2 Wie kann man im Book… | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h2 Um einen großen Gew… | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h2 Casinoboni für Book… | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h2 Ein faszinierendes S… | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h2 Gute Kenntnis der Sp… | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h2 Gewinnversprechende … | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h2 Die Book of Ra-Spiel… | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h2 Book of ra online sp… | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h2 Book of Ra Slot: Sca… | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h2 Gewinnbringende Frei… | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h2 Rund um die Hauptbeg… | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h2 Tipps & Tricks | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h2 Book of Ra Mobile Ve… | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h2 Die Varianten von Bo… | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h2 Book of Ra FAQ | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h3 Was man bei den Eins… | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h3 Eventuelle Gewinne | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h3 Gamble-Funktion: Das… | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
| h3 Die Autoplay-Funktio… | 1.10:1 | 3.0:1 | #000000 | #1E0717 | Fail |
Methodology: The top 20 text elements by font size were checked. Background color was sampled from the desktop screenshot using a 5-point pattern. WCAG 2.1 AA requires 4.5:1 for normal text and 3:1 for large text.
AHeading Hierarchy38 headings, 1 skip(s)PASS
- H1 Book Of Ra Spielen Ohne Anmeldung
- H2 Wie kann man im Book of Ra Online viel gewinnen?
- H2 Um einen großen Gewinn im Spiel zu erzielen, kann man die angeführten Tipps befolgen:
- H2 Casinoboni für Book of Ra
- H2 Ein faszinierendes Sujet in perfekter Slot-Ausführung
- H2 Gute Kenntnis der Spielregeln ist das halbe Werk
- H2 Gewinnversprechende Symbole von Book of Ra Slot bestimmen den Spielverlauf
- H2 Die Book of Ra-Spielreihe: mehrere Varianten – gemeinsamer Charme
- H2 Book of ra online spielen
- H2 Book of Ra Slot: Scatter & Wild Symbole
- H2 Gewinnbringende Freispiele für die Einsteiger
- H2 Rund um die Hauptbegriffe von Book of Ra
- H3 Was man bei den Einsätzen beachten muss?
- H3 Eventuelle Gewinne
- H3 Gamble-Funktion: Das Kartenrisiko
- H3 Die Autoplay-Funktion
- H3 Auszahlungsquote
- H3 Volatilität
- H3 RTP Wert
- H2 Tipps & Tricks
- H3 Sich anmelden & die Testversion spielen
- H3 Das Budget festlegen
- H3 Das Bonusprogramm nutzen
- H2 Book of Ra Mobile Version
- H2 Die Varianten von Book of Ra
- H3 Book of Ra Deluxe
- H3 Book of Ra Magic
- H3 Book of Ra – Temple of Gold
- H2 Book of Ra FAQ
- H4 Wo kann man Book of Ra Online spielen? skipped
- H4 Welche Varianten von Book of Ra gibt es?
- H4 Bietet Book of Ra einen Jackpot?
- H4 Gibt es Spielautomaten, die dem Book of Ra Slot ähneln?
- H4 Kann man Book of Ra in Deutschland um Echtgeld spielen?
- H4 Kann man Book of Ra kostenlos auf einem Mobilgerät spielen?
- H4 Worin unterscheidet sich Book of Ra Deluxe vom Klassiker?
- H4 Kann man den Klassiker Book of Ra offline kostenlos spielen ohne Anmeldung?
- H4 Kann ich Book of Ra Online Software zum Herunterladen finden?
Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.
Skipping heading levels breaks the document outline — screen-reader users lose track of section nesting.
Learn more ▾ ▴
Screen reader users navigate by jumping between headings (H1 → H2 → H3). Skipping (H1 → H3) breaks the sense of hierarchy. Use sequential levels even if you don't like the default styling — restyle with CSS instead. WCAG 1.3.1 (Info and Relationships) treats this as an A failure.
Source: WCAG 2.1 SC 1.3.1 / W3C WAI