Accessibility
· 24 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.DLandmark StructureAction5 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.
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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
Multiple navigations need aria-label to distinguish them for screen readers.
Some <nav> elements lack aria-label — screen-reader users hear 'navigation' multiple times with no way to distinguish them.
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When a page has multiple <nav> regions (primary, footer, breadcrumb), each needs aria-label or aria-labelledby. AT users navigate by landmark; identical 'navigation' announcements force them to enter each one to discover purpose.
Source: WAI-ARIA Authoring Practices
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
DForm AccessibilityAction7 of 7 controls have issuesFIX
| Control | Type | Label | Method |
|---|---|---|---|
| firstname | text | (First Name) | placeholder only |
| lname | text | (Last Name) | placeholder only |
| (Email) | placeholder only | ||
| phone | text | (Phone No.) | placeholder only |
| message | textarea | (Message) | placeholder only |
| input | submit | (none) | none |
| #g-recaptcha-response-100000 | textarea | (none) | none |
Form controls need a <label>, aria-label, or aria-labelledby for screen readers.
<input type="submit">; <textarea name="g-recaptcha-response" id="g-recaptcha-response-100000">
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="firstname">; <input type="text" name="lname">; <input type="email" name="email">; <input type="text" name="phone">; <textarea name="message">
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
DMobile Keyboard & AutofillAction3/3 eligible field(s) missing autocomplete or inputmodeFIX
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
CHeading HierarchyAction20 headings, 3 skip(s)REVIEW
- H2 Teeth Whitening
- H1 Professional Teeth Whitening in Earls Court, London
- H2 Why Do Teeth Lose Their Whiteness?
- H2 Who Is Teeth Whitening Suitable For?
- H4 Ready to begin your Invisalign journey? Call Thousand Smiles today on skipped
- H2 Our Teeth Whitening Options
- H5 In-Practice Whitening skipped
- H5 At-Home Whitening
- H5 Internal Whitening (for root-treated teeth)
- H2 Aftercare and Maintenance
- H2 Cost of Teeth Whitening
- H3 At-home whitening kits
- H3 In-practice whitening
- H2 Why Choose Thousand Smile?
- H4 Take the first step today—book your consultation and let’s create a smile you’ll love. skipped
- H3 Opening Hours
- H3 Treatments
- H4 Book Now
- H4 Make an Enquiry
- H4 Got a Question?
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.
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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.
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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 QualityAction11 issue(s) across 213 links and 3 buttonsREVIEW
| Element | Text | Issue | Suggested Fix |
|---|---|---|---|
| #nav | (empty) | empty | Add link text or aria-label |
| javascript:void(0); | Book A Consultation | img no alt | Add alt attribute to the image |
| https://www.thousandsmiles.co.uk/ | (empty) | empty | Add link text or aria-label |
| tel:02037732280 | (empty) | empty | Add link text or aria-label |
| mailto:hello@thousandsmiles.co.uk | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| https://www.thousandsmiles.co.uk/ | (empty) | empty | Add link text or aria-label |
| javascript:void(0); | Book A Consultation | img no alt | Add alt attribute to the image |
| # | (empty) | empty | Add link text or aria-label |
| javascript:void(0); | Find Out More | img no alt | Add alt attribute to the image |
| tel:02037732280 | 020 3773 2280 | img no alt | Add alt attribute to the image |
| javascript:void(0); | Book Online | img no alt | Add alt attribute to the image |
| javascript:void(0); | Contact Us | img no alt | Add alt attribute to the image |
| tel:02037732280 | 020 3773 2280 | img no alt | Add alt attribute to the image |
| javascript:void(0); | Book Online | img no alt | Add alt attribute to the image |
| tel:02037732280 | 020 3773 2280 | img no alt | Add alt attribute to the image |
| javascript:void(0); | Book Online | img no alt | Add alt attribute to the image |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| # | (empty) | empty | Add link text or aria-label |
| https://thousand-smiles.dentr.net/ | Book Now … | new tab | Add '(opens in new tab)' to text |
| https://www.thousandsmiles.co.uk/privacy… | Privacy Policy | new tab | Add '(opens in new tab)' to text |
| https://www.thousandsmiles.co.uk/terms-c… | Terms and Condition | new tab | Add '(opens in new tab)' to text |
| # | (empty) | empty | Add link text or aria-label |
Links without text are announced as raw URLs by screen readers.
#nav; https://www.thousandsmiles.co.uk/; tel:02037732280; mailto:hello@thousandsmiles.co.uk; #; https://www.thousandsmiles.co.uk/; #; #; #; # (+1 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
Add '(opens in new tab)' to link text or aria-label.
https://thousand-smiles.dentr.net/; https://www.thousandsmiles.co.uk/privacy-policy; https://www.thousandsmiles.co.uk/terms-conditions
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
BIframe Accessibility2/3 iframe(s) missing title; 0 placeholder(s)REVIEW
CColor Contrast (Screenshot)Action20 text elements analyzed, 7 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 Professional Teeth W… | 20.47:1 | 3.0:1 | #000000 | #FCFCFC | Pass |
| h2 Teeth Whitening | 20.47:1 | 3.0:1 | #000000 | #FCFCFC | Pass |
| h2 Whiteness? | 20.47:1 | 3.0:1 | #000000 | #FCFCFC | Pass |
| h2 Teeth Whitening | 20.47:1 | 3.0:1 | #000000 | #FCFCFC | Pass |
| h2 Teeth Whitening | 20.47:1 | 3.0:1 | #000000 | #FCFCFC | Pass |
| h2 Aftercare | 20.47:1 | 3.0:1 | #000000 | #FCFCFC | Pass |
| h2 Maintenance | 20.47:1 | 3.0:1 | #000000 | #FCFCFC | Pass |
| h2 Teeth Whitening | 20.47:1 | 3.0:1 | #000000 | #FCFCFC | Pass |
| h2 Thousand Smile? | 20.47:1 | 3.0:1 | #000000 | #FCFCFC | Pass |
| h3 At-home whitening ki… | 20.47:1 | 3.0:1 | #000000 | #FCFCFC | Pass |
| h3 In-practice whitenin… | 20.47:1 | 3.0:1 | #000000 | #FCFCFC | Pass |
| h3 Opening Hours | 20.47:1 | 3.0:1 | #000000 | #FCFCFC | Pass |
| h3 Treatments | 20.47:1 | 3.0:1 | #000000 | #FCFCFC | Pass |
| title Teeth Whitening Earl… | 2.40:1 | 4.5:1 | #000000 | #57483E | Fail |
| a Home | 2.42:1 | 4.5:1 | #000000 | #5B4742 | Fail |
| a Emergency Dentist | 2.26:1 | 4.5:1 | #000000 | #5A4140 | Fail |
| a Tooth Pain | 1.85:1 | 4.5:1 | #000000 | #55302D | Fail |
| a Broken Tooth | 3.01:1 | 4.5:1 | #000000 | #5B5958 | Fail |
| a Loose Filling | 3.09:1 | 4.5:1 | #000000 | #5B5B5A | Fail |
| a Dental Infection | 2.62:1 | 4.5:1 | #000000 | #564F4E | 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.
BLighthouse Accessibility AuditsScore 81/100 — 5 failing, 15 passedREVIEW
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 |
|---|
Ageing – enamel wears down, exposing the dentin underneath div.d-sec-content > ul.ts-listing > li > strong |
Smoking or tobacco use div.d-sec-content > ul.ts-listing > li > strong |
Drinks like red wine, coffee, tea, and cola div.d-sec-content > ul.ts-listing > li > strong |
Certain medications div.d-sec-content > ul.ts-listing > li > strong |
Poor oral hygiene div.d-sec-content > ul.ts-listing > li > strong |
Are aged 18 or older div.d-sec-content > ul.ts-listing > li > strong |
Have healthy gums and natural teeth div.d-sec-content > ul.ts-listing > li > strong |
Want to remove staining or lighten the overall shade of your teeth div.d-sec-content > ul.ts-listing > li > strong |
020 3773 2280 div.container > div.tktf-step-info > div.btn-row > a.btn |
Book Online div.container > div.tktf-step-info > div.btn-row > a.btn |
Brushing twice daily with fluoride toothpaste div.sml-bres-content > ul.ts-listing > li > strong |
Flossing daily to remove plaque and debris div.sml-bres-content > ul.ts-listing > li > strong |
Limiting coffee, tea, red wine, and dark foods that stain div.sml-bres-content > ul.ts-listing > li > strong |
Avoiding or reducing smoking div.sml-bres-content > ul.ts-listing > li > strong |
Scheduling regular hygienist visits for professional cleaning div.sml-bres-content > ul.ts-listing > li > strong |
Using whitening top-up kits if needed div.sml-bres-content > ul.ts-listing > li > strong |
Usually more affordable div.row > div.col-md-6 > div.aftr-rtnbx > p.usl-text |
Higher cost, but immediate and dramatic results div.row > div.col-md-6 > div.aftr-rtnbx > p.usl-text |
Safe treatment – div.chs-thsnd-scontent > ul.ts-listing > li > strong |
Advanced technology – div.chs-thsnd-scontent > ul.ts-listing > li > strong |
Flexible options – div.chs-thsnd-scontent > ul.ts-listing > li > strong |
Personalised care – div.chs-thsnd-scontent > ul.ts-listing > li > strong |
Book Online div.col-lg-6 > div.chs-thsnd-scontent > div.btn-row > a.btn |
Privacy Policy div#cookieBanner > div.cookie-content > p > a |
Terms and Condition div#cookieBanner > div.cookie-content > p > a |
These are opportunities to improve the legibility of your content.
Names and labels
Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.row > div.col-lg-12 > div.google-map > iframe div.row > div.col-lg-12 > div.google-map > iframe |
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.mob-row > div.mob-logo > div.logoSec > a div.mob-row > div.mob-logo > div.logoSec > a |
div.mobile-version > div.mob-row > div.mob-icons > a.mob-info-btn div.mobile-version > div.mob-row > div.mob-icons > a.mob-info-btn |
div.mobile-version > div.mob-row > div.mob-icons > a.mob-info-btn div.mobile-version > div.mob-row > div.mob-icons > a.mob-info-btn |
div.mobile-version > div.mob-row > div.mob-icons > a.btn div.mobile-version > div.mob-row > div.mob-icons > a.btn |
div.ftr-social > ul.ftrSocial > li > a.ftr-facebook div.ftr-social > ul.ftrSocial > li > a.ftr-facebook |
div.ftr-social > ul.ftrSocial > li > a.ftr-twitter div.ftr-social > ul.ftrSocial > li > a.ftr-twitter |
div.ftr-social > ul.ftrSocial > li > a.ftr-linkedin div.ftr-social > ul.ftrSocial > li > a.ftr-linkedin |
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.
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 |
|---|
Ready to begin your Invisalign journey?
Call Thousand Smiles today on section.take-the-first-step > div.container > div.tktf-step-info > h4 |
In-Practice Whitening div.row > div.col-md-4 > div.bnft-item > h5.mb-3 |
Take the first step today—book your consultation and let’s create a smile you’l… section.take-the-first-step > div.container > div.tktf-step-info > h4 |
These are opportunities to improve keyboard navigation in your application.
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 html |
These items highlight common accessibility best practices.