Start with the barriers people encounter most often: low-contrast text, meaning conveyed only by color, missing image alternatives, unclear form labels, confusing page structure, and controls that do not work with a keyboard. Fixing these issues makes a site easier to use, but a quick first review is not proof of full accessibility or WCAG conformance.
Common web accessibility issues
Accessibility barriers can result from routine design and content decisions. W3C’s guidance highlights practical areas to review, including contrast, text alternatives, forms, headings, keyboard use, and media. ADA.gov also advises website owners to consider accessibility in how they design and maintain web content. The applicable legal obligations depend on context and jurisdiction; the guidance here is not a legal determination.
Insufficient text contrast
Text can be hard to read when its color is too close to the background, when it sits over a busy image, or when a control has a faint label. Measure the foreground and background colors, then adjust the palette or put text over a solid backing.
WCAG 2.2 Success Criterion 1.4.3 sets a minimum contrast ratio of 4.5:1 for ordinary text and 3:1 for large text. These thresholds have exceptions, including logos and certain incidental content, so 4.5:1 is not a universal requirement for every visual element. See the W3C WCAG 2.2 standard.
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#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Meaning conveyed by color alone
A red outline by itself may not tell someone that a field has an error, and a green indicator alone may not communicate success. Pair color with a text message, a meaningful icon or another cue, so the status remains understandable without distinguishing the colors.
Missing or unhelpful image alternatives
For an informative image, provide alternative text that conveys its purpose in the surrounding context. A decorative image generally should not add an irrelevant description to the reading flow. If an image acts as a button or link, its accessible name should explain the action or destination, not merely describe its appearance. W3C’s web accessibility design tips and WCAG 2.2’s non-text content criterion address these distinctions.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Unlabeled or unclear form fields
Give each field a clear label and explain required information and expected formats. When validation fails, identify the affected field and describe the error in text as well as visually. Do not rely on a red highlight alone to tell people what needs attention.
Weak headings and navigation
Use headings that communicate the page’s hierarchy and labels that describe a control’s topic or purpose. Keep navigation clear and consistent. People using screen readers may move through a page by its headings, so each heading should make sense apart from its visual styling.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Mouse-only controls and invisible keyboard focus
All functionality should be operable with a keyboard, and the currently focused item should be visible. A menu, dialog, or form that can only be operated with a mouse can prevent keyboard users from completing tasks. WCAG 2.2 covers keyboard operation and visible focus; see the standard.
Media without needed alternatives or controls
Provide appropriate alternatives for media. Captions may be needed to convey speech and relevant non-speech audio. Give users controls for content that starts automatically, so they can pause or stop it rather than being forced to keep up with moving or playing content.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
How to fix and review the issues
- Check text and control contrast. Compare foreground and background colors, including text over images and labels on interactive controls. Adjust the colors or add a solid background where needed; use the WCAG 2.2 thresholds with their stated exceptions.
- Make meaning independent of color. For errors, success states, and other status cues, add a text label or another redundant signal.
- Review images in context. Give informative images useful alternatives, avoid irrelevant descriptions for decorative images, and name image-based controls by their purpose.
- Review forms. Confirm every field has a clear label, expectations are explained, and errors are identifiable in text.
- Inspect page structure and navigation. Check that headings express a sensible hierarchy and that labels explain topic or purpose.
- Test with a keyboard. Move through links, buttons, menus, and form controls without a mouse. Confirm that focus is visible and that tasks can be completed.
- Review media. Check whether speech or relevant non-speech audio needs captions or other alternatives, and whether automatically starting content has usable controls.
W3C’s Easy Checks – A First Review of Web Accessibility offers a preliminary way to spot some common problems, including image alternatives, headings, contrast, focus, and captions. Treat it as a first review, not certification or proof that a site conforms to WCAG.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.When a first review is not enough
A quick review can expose obvious barriers on a page. A deeper evaluation is more appropriate when the site is large, has complex interactions, or when the consequences of an inaccessible experience are significant. The review needs to cover relevant pages and states, and assess real keyboard operation and whether content meaning is conveyed—not just whether a page looks correct in a screenshot.
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Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
W3C presents Easy Checks as preliminary and points readers to further evaluation resources. It does not prescribe one particular evaluation product or service. For site-wide or complex assessment, consider a qualified accessibility professional or evaluation service whose scope fits the pages and interactions you need reviewed.
Capture screenshots without confusing them for an accessibility test
A screenshot can document a visual state, but it cannot establish that a site works with a keyboard, has useful text alternatives, or communicates meaning to assistive technology. If you need screenshots while documenting a review, ScreenshotNeo is a website screenshot API and MCP server for developers; clean shots are billed, while bot checks, blank pages, timeouts, failed loads, and cache hits are not.
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Use one GET request to capture a page; see the ScreenshotNeo documentation for API details.
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpScreenshotNeo accepts cookie and consent banners like a visitor, then removes more than 60 known consent platforms, newsletter popups, and chat widgets before capture; each step can be turned off. Bot checks, blank pages, and failed loads are never billed. Its MCP server lets AI agents use tools including take_screenshot, get_page_info, and capture_pdf. The free plan includes 1,000 screenshots a month with no card; paid plans start at $5 for 3,000.
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