Accessibility
· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.DLandmark StructureAction1 landmarksFIX
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
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 & BrandingAction1 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
DLighthouse Accessibility AuditsActionScore 68/100 — 5 failing, 7 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.
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 |
|---|
cloudflare.com div#cf-error-details > header.mx-auto > div > a |
Additional troubleshooting information here. div.clearfix > div.w-1/2 > p > a |
Cloudflare div.cf-error-footer > p.text-13 > span.cf-footer-item > a#brand_link |
Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
cloudflare.com div#cf-error-details > header.mx-auto > div > a |
Additional troubleshooting information here. div.clearfix > div.w-1/2 > p > a |
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 |
|---|
Browser div.w-240 > div.clearfix > div#cf-browser-status > h3.md:inline-block |
These are opportunities to improve keyboard navigation in your application.
Names and labels
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.clearfix > div#cf-cloudflare-status > div.relative > a div.clearfix > div#cf-cloudflare-status > div.relative > a |
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.
Best practices
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.no-js html.no-js |
These items highlight common accessibility best practices.
BLink & Button Quality1 issue(s) across 5 links and 1 buttonsREVIEW
| Element | Text | Issue | Suggested Fix |
|---|---|---|---|
| https://www.cloudflare.com/5xx-error-lan… | cloudflare.com | new tab | Add '(opens in new tab)' to text |
| https://www.cloudflare.com/5xx-error-lan… | (empty) | empty | Add link text or aria-label |
| https://www.cloudflare.com/5xx-error-lan… | Cloudflare | new tab | Add '(opens in new tab)' to text |
| https://www.cloudflare.com/5xx-error-lan… | Cloudflare | new tab | Add '(opens in new tab)' to text |
Links without text are announced as raw URLs by screen readers.
https://www.cloudflare.com/5xx-error-landing?utm_source=errorcode_522&utm_cam…
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
Add '(opens in new tab)' to link text or aria-label.
https://www.cloudflare.com/5xx-error-landing?utm_source=errorcode_522&utm_cam…; https://www.cloudflare.com/5xx-error-landing?utm_source=errorcode_522&utm_cam…; https://www.cloudflare.com/5xx-error-landing?utm_source=errorcode_522&utm_cam…
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
AHeading Hierarchy8 headings, 1 skip(s)PASS
- H1 Connection timed out Error code 522
- H3 Browser skipped
- H3 Cloudflare
- H3 Host
- H2 What happened?
- H2 What can I do?
- H3 If you're a visitor of this website:
- H3 If you're the owner of this website:
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
A+Alt Text QualityNo imagesPASS
A+Form AccessibilityNo form controlsPASS
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 |
|---|---|---|---|---|---|
| h2 What happened? | 17.62:1 | 3.0:1 | #000000 | #EBEBEB | Pass |
| h2 What can I do? | 17.62:1 | 3.0:1 | #000000 | #EBEBEB | Pass |
| h3 Browser | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h3 Host | 17.62:1 | 3.0:1 | #000000 | #EBEBEB | Pass |
| h3 If you're a visitor … | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h3 If you're the owner … | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| title canalhistoria.es | 5… | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| span Connection timed out | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| span Error code 522 | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| div Visit | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| a cloudflare.com | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| div for more information… | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| div 2026-04-21 19:24:02 … | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| span You | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| span Working | 17.14:1 | 4.5:1 | #000000 | #E8E8E8 | Pass |
| span Paris | 17.62:1 | 4.5:1 | #000000 | #EBEBEB | Pass |
| a Cloudflare | 17.62:1 | 4.5:1 | #000000 | #EBEBEB | Pass |
| span Working | 17.62:1 | 4.5:1 | #000000 | #EBEBEB | Pass |
| span canalhistoria.es | 17.62:1 | 4.5:1 | #000000 | #EBEBEB | Pass |
| span Error | 17.62:1 | 4.5:1 | #000000 | #EBEBEB | 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.