Accessibility
· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.F404 Error PageActionSoft 404 detectedFIX
The server returned HTTP 200 for a non-existent path. Search engines will index this page as real content. Configure your server to return HTTP 404 for missing pages.
FFavicon & BrandingAction2 icon(s) detectedFIX
FWeb ManifestActionInvalid JSONFIX
Manifest contains invalid JSON.
DDark Mode SupportActionNo dark mode signalsFIX
Detection limited to meta tags and inline styles.
DPrint StylesheetActionNo print stylesFIX
BForm Accessibility2 of 4 controls have issuesREVIEW
| Control | Type | Label | Method |
|---|---|---|---|
| #survey-yes | radio | Yes | aria-label |
| #survey-no | radio | No | aria-label |
| input | text | (Search articles) | placeholder only |
| survey-token | text | (none) | none |
Form controls need a <label>, aria-label, or aria-labelledby for screen readers.
<input type="text" name="survey-token">
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">
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
BLink & Button Quality5 issue(s) across 56 links and 13 buttonsREVIEW
| Element | Text | Issue | Suggested Fix |
|---|---|---|---|
| /en/site-policy/privacy-policies/github-… | Privacy policy | new tab | Add '(opens in new tab)' to text |
| /contributing | Learn how to contribute | new tab | Add '(opens in new tab)' to text |
| <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 |
Add '(opens in new tab)' to link text or aria-label.
/en/site-policy/privacy-policies/github-privacy-statement; /contributing
Links with target="_blank" without rel="noopener" leak the originating page's window context — security and UX issue.
Learn more ▾ ▴
Without rel="noopener", the new tab can navigate the original tab via window.opener (tab-nabbing attack). Modern browsers default to noopener for target=_blank but only since recent versions. Always set rel="noopener noreferrer" explicitly.
Source: MDN target / OWASP
Icon-only buttons need an aria-label so screen readers can announce them.
button[data-testid="mobile-search-button"]; button#:R1j776:; button[data-testid="mobile-search-button"]; button#:R4j776:; button[data-testid="sidebar-hamburger"]
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
A+Landmark Structure8 landmarksPASS
A+Heading Hierarchy17 headingsPASS
- H2 GitHub Pages
- H1 GitHub Pages documentation
- H2 Articles
- H3 About custom domains and GitHub Pages
- H3 About GitHub Pages and Jekyll
- H3 About Jekyll build errors for GitHub Pages sites
- H3 Adding a theme to your GitHub Pages site using Jekyll
- H3 Adding content to your GitHub Pages site using Jekyll
- H3 Configuring a publishing source for your GitHub Pages site
- H3 Creating a custom 404 page for your GitHub Pages site
- H3 Creating a GitHub Pages site
- H3 Creating a GitHub Pages site with Jekyll
- H2 Help and support
- H3 Did you find what you needed?
- H3 Help us make these docs great!
- H3 Still need help?
- H2 Legal
A+Alt Text QualityNo imagesPASS
A+Color Contrast (Screenshot)20 text elements analyzed, 0 fail WCAG AAPASS
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 GitHub Pages documen… | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h2 Articles | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h2 Help and support | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h2 Legal | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h3 Did you find what yo… | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h3 Help us make these d… | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h3 Still need help? | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| title GitHub Pages documen… | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| a Skip to main content | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| span GitHub Docs | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| span Version: | 20.27:1 | 4.5:1 | #000000 | #FAFBFC | Pass |
| span Free, Pro, & Team | 19.73:1 | 4.5:1 | #000000 | #F6F8FA | Pass |
| span Search or ask Copilo… | 19.73:1 | 4.5:1 | #000000 | #F6F8FA | Pass |
| span Search or ask | 19.73:1 | 4.5:1 | #000000 | #F6F8FA | Pass |
| span Copilot | 19.73:1 | 4.5:1 | #000000 | #F6F8FA | Pass |
| span Select language: cur… | 19.73:1 | 4.5:1 | #000000 | #F6F8FA | Pass |
| span Search or ask Copilo… | 19.73:1 | 4.5:1 | #000000 | #F6F8FA | Pass |
| span Search or ask | 19.73:1 | 4.5:1 | #000000 | #F6F8FA | Pass |
| span Copilot | 19.73:1 | 4.5:1 | #000000 | #F6F8FA | Pass |
| span Open menu | 19.73:1 | 4.5:1 | #000000 | #F6F8FA | Pass |
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.
A+Lighthouse Accessibility AuditsScore 100/100 — 0 failing, 27 passedPASS
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.