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 QualityAction7 of 8 images have issuesFIX
| Issue | Count |
|---|---|
| missing | 7 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
FForm AccessibilityAction11 of 13 controls have issuesFIX
| Control | Type | Label | Method |
|---|---|---|---|
| #hasAccount-1 | radio | none | |
| #hasAccount-0 | radio | none | |
| #extraparams | textarea | (Please fill in your requirements&budget and leave it to us) | placeholder only |
| username | text | (Your Email / Customer ID:) | placeholder only |
| #Contact | text | (Please fill in your phone number or email) | placeholder only |
| #BudgetCurrency | select | (none) | none |
| #keyword | text | (none) | none |
| #Terms | checkbox | (none) | none |
| #username | text | (none) | none |
| #password | password | (none) | none |
| DomainName | text | (none) | none |
| password | password | (none) | none |
| BudgetAmount | text | (none) | none |
Form controls need a <label>, aria-label, or aria-labelledby for screen readers.
<input type="text" name="keyword" id="keyword">; <input type="text" name="username" id="username">; <input type="password" name="password" id="password">; <input type="text" name="DomainName">; <input type="text" name="BudgetAmount">; <select name="BudgetCurrency" id="BudgetCurrency">; <input type="checkbox" name="Terms" id="Terms">; <input type="password" name="password">
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.
<textarea name="Comment" id="extraparams">; <input type="text" name="username">; <input type="text" name="Contact" id="Contact">
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 QualityAction5 issue(s) across 102 links and 2 buttonsFIX
| Element | Text | Issue | Suggested Fix |
|---|---|---|---|
| http://top.4.cn/ | Top Domains | new tab | Add '(opens in new tab)' to text |
| http://whois.4.cn | Whois | new tab | Add '(opens in new tab)' to text |
| http://www.facebook.com/4dotcn | Like us on Facebook | new tab | Add '(opens in new tab)' to text |
| http://www.twitter.com/4dotcn | Follow us on Twitter | new tab | Add '(opens in new tab)' to text |
| /company/contactus | Contact Us | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/25363792 | ld69.com 买域名找4.c… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/29326102 | hnzyqx.ha.cn 00-22年记… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/35020330 | 93339.com 买域名找4.… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/8642422 | sha333.com 买域名找4… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/33797149 | mingyang688.com 12-20年… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/34947072 | laonvzaijia.com 18-22年… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/20244713 | yw88888.com 买域名找… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/25228809 | xbzx.net.cn 05-16年满… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/35117759 | 907123.com 买域名找4… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/14403874 | 20231.com 买域名找4.… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/35143582 | youxicity.com 04-20年… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/12251084 | blr50.com 买域名找4.… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/8685312 | sy3.cc 买域名找4.cn-… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/10816200 | ndzc.com 买域名找4.c… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/34605559 | sjzhcht.com 11-19年记… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/34953347 | zhibocang.com 14-22年… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/35020305 | 57117.com 买域名找4.… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/35117070 | 19602.com 买域名找4.… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/29435994 | cdflyz.com 11-18年满… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/34991786 | jb123.com 买域名找4.… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/34961021 | nvfeng.com 买域名找4… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/35009677 | gangguan618.com 13-22年… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/34674393 | dongnanxww.com 18-22年… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/34840355 | 51tfb.com 18-21年记录… | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/24553955 | yingchun.com | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/19150877 | leshui.com | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/19818219 | 365shipin.com | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/2124398 | kxx.com | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/35633565 | sudex.cn | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/8766663 | 112363.com | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/1105451 | shops.cn | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/35381010 | 200.tv | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/35729059 | 44486.com | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/5514197 | chu.com | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/35381013 | 300.tv | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/24553996 | daliu.com | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/31203512 | 8170.com | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/24553956 | maigu.com | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/34853316 | 1682.cc | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/35381017 | 98j.com | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/19818094 | jingdao.com | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/19191890 | rising.com | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/18945557 | iyq.com | new tab | Add '(opens in new tab)' to text |
| /search/detail/pid/1920256 | en.cn | new tab | Add '(opens in new tab)' to text |
| /policies/domain-brokerage-services | 4.CN Brokerage Services Policy | new tab | Add '(opens in new tab)' to text |
| /announce/detail/id/362 | 4.CN Holiday Reminder | new tab | Add '(opens in new tab)' to text |
| /announce/detail/id/360 | 4.CN Holiday Reminder | new tab | Add '(opens in new tab)' to text |
| /announce/detail/id/358 | 4.CN Holiday Reminder | new tab | Add '(opens in new tab)' to text |
| /company/aboutus | About Us | new tab | Add '(opens in new tab)' to text |
| /announce | News Releases | new tab | Add '(opens in new tab)' to text |
| /company/contactus | Contact Us | new tab | Add '(opens in new tab)' to text |
| /company/prices | Fee Policies | new tab | Add '(opens in new tab)' to text |
| /policies/ | Policies | new tab | Add '(opens in new tab)' to text |
| /help/list/cid/1 | Sign Up | new tab | Add '(opens in new tab)' to text |
| /help/list/cid/11 | BIN Sales | new tab | Add '(opens in new tab)' to text |
| /help/list/cid/4 | Sell Domains | new tab | Add '(opens in new tab)' to text |
| http://beian.miit.gov.cn | 浙ICP备15018581号-3 | new tab | Add '(opens in new tab)' to text |
| http://beian.miit.gov.cn | 备案号查询 | new tab | Add '(opens in new tab)' to text |
| http://www.domaining.com/ | Web site recommended by Domain… | new tab | Add '(opens in new tab)' to text |
| http://zjnet.zjaic.gov.cn/ | (empty) | empty | Add link text or aria-label |
| http://www.hangzhou.cyberpolice.cn/ | (empty) | empty | Add link text or aria-label |
| http://www.pingpinganan.gov.cn/ | (empty) | empty | Add link text or aria-label |
| http://www.internic.net/registrars/regis… | (empty) | empty | Add link text or aria-label |
| http://www.beian.gov.cn/portal/registerS… | 浙公网安备 33010402000519… | new tab | Add '(opens in new tab)' to text |
| https://t.me/Monica4cn | (empty) | empty | Add link text or aria-label |
Links without text are announced as raw URLs by screen readers.
http://zjnet.zjaic.gov.cn/; http://www.hangzhou.cyberpolice.cn/; http://www.pingpinganan.gov.cn/; http://www.internic.net/registrars/registrar-1629.html; https://t.me/Monica4cn
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="http://www.facebook.com/4dotcn"]; a[href="http://www.twitter.com/4dotcn"]
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
Add '(opens in new tab)' to link text or aria-label.
http://top.4.cn/; http://whois.4.cn; /company/contactus; /search/detail/pid/25363792; /search/detail/pid/29326102; /search/detail/pid/35020330; /search/detail/pid/8642422; /search/detail/pid/33797149; /search/detail/pid/34947072; /search/detail/pid/20244713 (+53 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
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.
DFavicon & BrandingAction3 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 62/100 — 7 failing, 16 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 |
|---|
Welcome to 4.CN Sign In Create an account body > div#top > div.wrapper > div.fl |
Sign In div#top > div.wrapper > div.fl > a.orange |
Create an account div#top > div.wrapper > div.fl > a.orange |
Top Domains div#top > div.wrapper > div.fr > a.orange |
Fee Policies div#top > div.wrapper > div.fr > a |
Help Center div#top > div.wrapper > div.fr > a |
Contact Us div#top > div.wrapper > div.fr > a |
div.search-wrap > form#handleSearch > div.search-text-container > input#keyword div.search-wrap > form#handleSearch > div.search-text-container > input#keyword |
BIN Sales div#nav > ul.fl > li > a.buynow-item |
Bulk Sales div#nav > ul.fl > li > a.bulk-item |
Hot Sales div#nav > ul.fl > li > a.hotsale-item |
Live Auction div#nav > ul.fl > li > a.auction-item |
Buy Domains div#nav > ul.fl > li > a.buy-domains-item |
Sell Domains div#nav > ul.fl > li > a.sell-domains-item |
Escrow div#nav > ul.fl > li > a.escrow-item |
More >> div.gray-head > h2.head-h2 > span.fr > a.more |
Category div.body > ol.list > li.cap > span.category |
Listing Price div.body > ol.list > li.cap > span.price |
Shopping div.body > ol.list > li > span.category |
make offer div.body > ol.list > li > span.price |
¥420,000 CNY div.body > ol.list > li > span.price |
Uncategoried div.body > ol.list > li > span.category |
make offer div.body > ol.list > li > span.price |
Acronyms div.body > ol.list > li > span.category |
$31,888 USD div.body > ol.list > li > span.price |
Computers div.body > ol.list > li > span.category |
make offer div.body > ol.list > li > span.price |
Category div.body > ol.list > li.cap > span.category |
Listing Price div.body > ol.list > li.cap > span.price |
Uncategoried div.body > ol.list > li > span.category |
make offer div.body > ol.list > li > span.price |
Business div.body > ol.list > li > span.category |
make offer div.body > ol.list > li > span.price |
Uncategoried div.body > ol.list > li > span.category |
make offer div.body > ol.list > li > span.price |
Uncategoried div.body > ol.list > li > span.category |
¥300,000 CNY div.body > ol.list > li > span.price |
Uncategoried div.body > ol.list > li > span.category |
make offer div.body > ol.list > li > span.price |
div.login > form#index_login > div.ftext-wrap > input#username div.login > form#index_login > div.ftext-wrap > input#username |
div.login > form#index_login > div.ftext-wrap > input#password div.login > form#index_login > div.ftext-wrap > input#password |
Sign In form#index_login > p > button.sub-btn > span |
Create an account div.login > form#index_login > p > a.reg_btn |
div.entrust-box > dl.clearfix > dd > input.domain-name div.entrust-box > dl.clearfix > dd > input.domain-name |
div.entrust-box > dl.clearfix > dd > input.budget div.entrust-box > dl.clearfix > dd > input.budget |
I have an account dl.clearfix > dd > label > span |
I am a new customer dl.clearfix > dd > label > span |
dl.clearfix > dd#loginForm > div.ftext-wrap > input dl.clearfix > dd#loginForm > div.ftext-wrap > input |
dl.clearfix > dd#loginForm > div.ftext-wrap > input dl.clearfix > dd#loginForm > div.ftext-wrap > input |
Brokerage form#applybrokerage > div.entrust-box > p > a#submit |
Time Left div.body > ol#closing_auctions > li.cap > span.time |
Current Bid div.body > ol#closing_auctions > li.cap > span.price |
Listing Price div.body > ol#featured_hotsale > li.cap > span.price |
浙公网安备 33010402000519号 div.wrap > div > a > p |
These are opportunities to improve the legibility of your content.
Names and labels
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.fr > span.nav-tool > a > img div.fr > span.nav-tool > a > img |
div.fr > span.nav-tool > a > img div.fr > span.nav-tool > a > img |
div#footer > div.wrap > a > img div#footer > div.wrap > a > img |
div#footer > div.wrap > a > img div#footer > div.wrap > a > img |
div#footer > div.wrap > a > img div#footer > div.wrap > a > img |
div#footer > div.wrap > a > img div#footer > div.wrap > a > img |
Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.search-wrap > form#handleSearch > div.search-text-container > input#keyword div.search-wrap > form#handleSearch > div.search-text-container > input#keyword |
div.login > form#index_login > div.ftext-wrap > input#username div.login > form#index_login > div.ftext-wrap > input#username |
div.login > form#index_login > div.ftext-wrap > input#password div.login > form#index_login > div.ftext-wrap > input#password |
div.entrust-box > dl.clearfix > dd > input.domain-name div.entrust-box > dl.clearfix > dd > input.domain-name |
div.entrust-box > dl.clearfix > dd > input.budget div.entrust-box > dl.clearfix > dd > input.budget |
dl.clearfix > dd#loginForm > div.ftext-wrap > input dl.clearfix > dd#loginForm > div.ftext-wrap > input |
Form elements without effective labels can create frustrating experiences for screen reader users. Learn more about the `select` element.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
CNY
USD
EUR div.entrust-box > dl.clearfix > dd > select#BudgetCurrency |
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 |
|---|
body > div#footer > div.wrap > iframe body > div#footer > div.wrap > 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 |
|---|
body > div#footer > div.wrap > a |
body > div#footer > div.wrap > a |
body > div#footer > div.wrap > a |
body > div#footer > div.wrap > 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 html |
These items highlight common accessibility best practices.
A+Heading Hierarchy5 headingsPASS
- H1 (empty)
- H2 More >>
- H2 Featured DomainsMore >>
- H2 Ending Soon AuctionsMore >>
- H2 Spotlight HotsalesMore >>
Empty headings appear in the document outline but provide no information.
Empty <hN> tags break the document outline — screen-reader users navigating by heading hit dead silence.
Source: WCAG 2.4.6
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 Featured Domains | 12.55:1 | 3.0:1 | #000000 | #C8C8C8 | Pass |
| h2 Ending Soon Auctions | 12.55:1 | 3.0:1 | #000000 | #C8C8C8 | Pass |
| h2 Spotlight Hotsales | 12.55:1 | 3.0:1 | #000000 | #C8C8C8 | Pass |
| title 4.CN - Buy, Sell & P… | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| div Welcome to 4.CN | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| a Sign In | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| a Create an account | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| a Top Domains | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| a Whois | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| a Fee Policies | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| a Help Center | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| a Contact Us | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| strong Search | 21.00:1 | 3.0:1 | #000000 | #FFFFFF | Pass |
| div Hot search: | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| a Disyllable Pinyin.co… | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| a Repeated Disyllable … | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| a 2Letters | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| a 3Letters.com | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| a 3Numbers | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | Pass |
| a 4Numbers.com | 21.00:1 | 4.5:1 | #000000 | #FFFFFF | 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.