Accessibility
· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.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.
BHeading Hierarchy28 headings, 2 skip(s)REVIEW
- H2 Primary Menu
- H2 Mobile Menu
- H5 Site Menu skipped
- H5 LLNL Menu
- H1 LAWRENCE LIVERMORE NATIONAL LABORATORY
- H2 Science and Technology on a Mission
- H2 Our Mission-Driven Work
- H2 Our Latest News
- H2 Our Organizations
- H3 Computing
- H3 Global Security
- H3 Operations and Business
- H3 Strategic Deterrence
- H3 Engineering
- H3 National Ignition Facility and Photon Science
- H3 Physical and Life Sciences
- H2 Our World-Class Facilities
- H2 Our Culture and Community
- H2 Discover Your Next Career Opportunity
- H4 LLNL.GOV skipped
- H4 ORGANIZATIONS
- H4 RESOURCES
- H4 STAY CONNECTED
- H4 STAY CONNECTED
- H4 LLNL.GOV
- H4 ORGANIZATIONS
- H4 RESOURCES
- H4 STAY CONNECTED
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
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
CLink & Button QualityAction4 issue(s) across 292 links and 10 buttonsREVIEW
| Element | Text | Issue | Suggested Fix |
|---|---|---|---|
| (empty) | empty | Add link text or aria-label | |
| https://www.llnl.gov/purpose | Our Purpose | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/science-technology | Our Science and Technology | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/join-our-team | Join Our Team | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/partner | Partner with Us | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/news | News | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/community-education | Community and Education | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/about | About LLNL | new tab | Add '(opens in new tab)' to text |
| https://computing.llnl.gov/ | Computing | new tab | Add '(opens in new tab)' to text |
| https://engineering.llnl.gov/ | Engineering | new tab | Add '(opens in new tab)' to text |
| https://gs.llnl.gov/ | Global Security | new tab | Add '(opens in new tab)' to text |
| https://lasers.llnl.gov/ | National Ignition Facility and… | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/about/organizations… | Operations and Business | new tab | Add '(opens in new tab)' to text |
| https://pls.llnl.gov/ | Physical and Life Sciences | new tab | Add '(opens in new tab)' to text |
| https://sd.llnl.gov/ | Strategic Deterrence | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/about/contact | Contact | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/about/visiting | Visiting | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/about/emergency-com… | Emergency Communication | new tab | Add '(opens in new tab)' to text |
| https://fcoi.llnl.gov/ | Research Ethics | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/disclaimer | Disclaimer | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/copyright-and-reuse | Copyright and Reuse | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/sitemap | Sitemap | new tab | Add '(opens in new tab)' to text |
| https://www.facebook.com/livermore.lab | new tab | Add '(opens in new tab)' to text | |
| https://www.instagram.com/livermore_lab/ | new tab | Add '(opens in new tab)' to text | |
| http://www.linkedin.com/company/4994?trk… | new tab | Add '(opens in new tab)' to text | |
| https://www.twitter.com/Livermore_Lab | X | new tab | Add '(opens in new tab)' to text |
| https://www.youtube.com/user/LivermoreLa… | YouTube | new tab | Add '(opens in new tab)' to text |
| https://www.glassdoor.com/Reviews/Lawren… | Glassdoor | new tab | Add '(opens in new tab)' to text |
| https://www.facebook.com/livermore.lab | new tab | Add '(opens in new tab)' to text | |
| https://www.instagram.com/livermore_lab | new tab | Add '(opens in new tab)' to text | |
| http://www.linkedin.com/company/4994?trk… | new tab | Add '(opens in new tab)' to text | |
| https://www.twitter.com/Livermore_Lab | X | new tab | Add '(opens in new tab)' to text |
| https://www.youtube.com/user/LivermoreLa… | YouTube | new tab | Add '(opens in new tab)' to text |
| https://www.glassdoor.com/Reviews/Lawren… | =GlassDoor | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/purpose | Our Purpose | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/science-technology | Our Science and Technology | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/join-our-team | Join Our Team | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/partner | Partner with Us | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/news | News | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/community-education | Community and Education | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/about | About LLNL | new tab | Add '(opens in new tab)' to text |
| https://computing.llnl.gov/ | Computing | new tab | Add '(opens in new tab)' to text |
| https://engineering.llnl.gov/ | Engineering | new tab | Add '(opens in new tab)' to text |
| https://gs.llnl.gov/ | Global Security | new tab | Add '(opens in new tab)' to text |
| https://lasers.llnl.gov/ | National Ignition Facility and… | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/about/organizations… | Operations and Business | new tab | Add '(opens in new tab)' to text |
| https://pls.llnl.gov/ | Physical and Life Sciences | new tab | Add '(opens in new tab)' to text |
| https://sd.llnl.gov/ | Strategic Deterrence | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/about/contact | Contact | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/about/visiting | Visiting | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/about/emergency-com… | Emergency Communication | new tab | Add '(opens in new tab)' to text |
| https://fcoi.llnl.gov/ | Research Ethics | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/disclaimer | Disclaimer | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/copyright-and-reuse | Copyright and Reuse | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/sitemap | Sitemap | new tab | Add '(opens in new tab)' to text |
| https://www.facebook.com/livermore.lab | new tab | Add '(opens in new tab)' to text | |
| https://www.instagram.com/livermore_lab/ | new tab | Add '(opens in new tab)' to text | |
| http://www.linkedin.com/company/4994?trk… | new tab | Add '(opens in new tab)' to text | |
| https://www.twitter.com/Livermore_Lab | X | new tab | Add '(opens in new tab)' to text |
| https://www.youtube.com/user/LivermoreLa… | YouTube | new tab | Add '(opens in new tab)' to text |
| https://www.glassdoor.com/Reviews/Lawren… | Glassdoor | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/ | LLNL | new tab | Add '(opens in new tab)' to text |
| https://www.energy.gov/vulnerability-dis… | Vulnerability Disclosure Progr… | new tab | Add '(opens in new tab)' to text |
| http://www.llnsllc.com/ | LLNS | new tab | Add '(opens in new tab)' to text |
| https://www.energy.gov/ | U.S. DOE | new tab | Add '(opens in new tab)' to text |
| https://www.energy.gov/nnsa/national-nuc… | NNSA | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/disclaimer | Disclaimer | new tab | Add '(opens in new tab)' to text |
| https://www.llnl.gov/website-privacy-not… | Privacy Notice | 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 |
Links without text are announced as raw URLs by screen readers.
a#main-content
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.llnl.gov/purpose; https://www.llnl.gov/science-technology; https://www.llnl.gov/join-our-team; https://www.llnl.gov/partner; https://www.llnl.gov/news; https://www.llnl.gov/community-education; https://www.llnl.gov/about; https://computing.llnl.gov/; https://engineering.llnl.gov/; https://gs.llnl.gov/ (+57 more)
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.mm-tabstart (#31 on page); button.mm-tabend (#331 on page); button.mm-tabend (#1280 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
B404 Error PageHTTP 404, custom pageREVIEW
CColor Contrast (Screenshot)Action20 text elements analyzed, 4 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 LAWRENCE LIVERMORE N… | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h2 Primary Menu | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h2 Mobile Menu | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h2 and | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h2 on a | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h2 Our | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h2 Work | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h2 Our Latest News | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h2 Our Organizations | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h2 Our World-Class Faci… | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h2 Our Culture and Comm… | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| h2 Discover Your Next | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| title Lawrence Livermore N… | 18.43:1 | 4.5:1 | #000000 | #F0F0F0 | Pass |
| span Menu | 18.43:1 | 4.5:1 | #000000 | #F0F0F0 | Pass |
| a Our Purpose | 8.34:1 | 4.5:1 | #000000 | #91A3CF | Pass |
| span Open submenu | 18.10:1 | 4.5:1 | #000000 | #EEEEEE | Pass |
| a Our Science and Tech… | 2.06:1 | 4.5:1 | #000000 | #413F53 | Fail |
| span Open submenu | 1.36:1 | 4.5:1 | #000000 | #2D202E | Fail |
| a Our Science and Tech… | 1.16:1 | 4.5:1 | #000000 | #15132A | Fail |
| a Advanced Materials a… | 1.13:1 | 4.5:1 | #000000 | #06112F | 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.
ALandmark Structure7 landmarksPASS
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
AAlt Text QualityAll 26 images OKPASS
| Issue | Count |
|---|---|
| too long | 7 image(s) |
A+Form AccessibilityAll 2 controls labeledPASS
| Control | Type | Label | Method |
|---|---|---|---|
| #edit-searchterm--20 | text | Search | aria-label |
| #edit-searchterm--21 | text | Search | aria-label |
A+Print StylesheetPrint styles detectedPASS
ALighthouse Accessibility AuditsScore 94/100 — 2 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.
ARIA
Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
LLNL.GOV
Our Purpose
Our Science and Technology
Join Our Team
Partner with Us
N… div.dialog-off-canvas-main-canvas > footer.footer > div.container > div#footer-accordion |
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.
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 |
|---|
STAY CONNECTED div.container > div#footer-stay-connected > div.footer-social-media > h4 |
These are opportunities to improve keyboard navigation in your application.