Homepage audit guide
Homepage Mobile Usability
A practical mobile homepage test that separates automated contrast evidence from manual layout, tap, reflow, and keyboard review.
Published · Updated
Short answer
A usable mobile homepage lets a shopper read the offer, activate the main shopping path, and continue without zooming, accidental taps, blocked content, or horizontal page scrolling. Test those jobs separately. For contrast, WCAG 2.2 sets a 4.5:1 minimum for normal text and 3:1 for large text. For the wider mobile experience, inspect reflow, control spacing, overlays, and keyboard flow manually; ReviewMyEcom currently automates the color-contrast portion only.
Why it matters
A phone compresses the offer, navigation, promotions, and shopping controls into a narrow viewport. That makes small conflicts visible: a headline can cover the product, a sticky bar can hide the menu, or two nearby controls can become easy to mis-tap. A single generic mobile score cannot explain which shopper job failed, so this guide uses a read-act-continue review that produces a concrete fix.
What to inspect
The free homepage audit currently automates a bounded color-contrast check on the public mobile homepage. It does not currently automate the broader layout, target-size, reflow, or keyboard review described in this guide:
- Samples visible homepage text and controls from a 375-by-667 mobile render when the foreground and background can be measured reliably.
- Compares normal text with the 4.5:1 threshold, large text with 3:1, and sampled non-text controls with 3:1.
- Names the affected label or region and reports the measured and required ratios when a reliable sample fails.
- Abstains when an image, video, gradient, unresolved transparency, or incomplete render makes the background unreliable.
First-party audit pattern
Why a ratio must point to a shopper decision
A July 7 internal quality review found nine high-severity contrast failures in a sample of 20 recent clean audits. That small sample is not a prevalence estimate; it exposed a guidance problem. The old copy said only that parts of the page might be hard to read. The repaired finding now prioritizes a visible decision point, such as the hero headline or primary CTA, and reports its measured ratio against the applicable threshold.
- The mobile screenshot and evidence artifact identify the tested homepage and viewport.
- The finding names the visible text or control, its measured ratio, and its required ratio.
- The recommendation starts with the highest-impact failing decision point instead of a generic palette change.
- Unresolved image, video, gradient, or transparent backgrounds cause an abstention rather than a merchant-facing failure.
Diagram
Read, act, continue
Review the mobile homepage as three shopper jobs so each failure leads to a specific change.
Can the offer be understood?
The category, promise, price cues, and primary action remain legible over their real backgrounds.
Can the next step be activated?
The CTA, menu, search, cart, and close controls are visible, separated, and easy to trigger.
Can shopping proceed?
Content reflows, focus moves predictably, and sticky bars or popups do not block the path.
Symptoms
- The hero headline or CTA becomes faint over one part of a responsive image.
- Menu, cart, popup-close, or carousel controls are small and crowded together.
- A card, long word, or fixed-width section forces horizontal page scrolling.
- Announcement bars, sticky headers, chat launchers, and popups cover the same decision area.
How to check it
- Load the real homepage at a phone width and inspect the first three screens with normal promotions, sticky bars, chat, and popups enabled.
- For each screen, write down the read, act, and continue job. If a shopper cannot complete one, name the exact text, control, or overlay responsible.
- Measure text against its actual background: normal text needs at least 4.5:1 contrast and large text needs at least 3:1 under WCAG 2.2.
- Check pointer targets against the WCAG 2.2 minimum of 24 by 24 CSS pixels or its spacing exception, then give high-priority shopping controls additional room when the layout allows.
- Narrow the page to 320 CSS pixels, or use the equivalent zoom test, and confirm ordinary content reflows without two-dimensional scrolling.
- Use the keyboard to move through the header, hero CTA, popup controls, and first product path. Confirm the focus indicator stays visible and the order preserves meaning and operability.
How to fix it
- Move important copy off a busy image, add a stable solid or opaque overlay, or choose a text color that clears the applicable contrast threshold.
- Increase the clickable area or spacing around menu, cart, carousel, and popup-close controls without shrinking nearby text.
- Replace fixed widths with responsive constraints so cards and media fit the viewport and long text can wrap.
- Choose which sticky element earns the mobile viewport; collapse, delay, or remove lower-priority bars and launchers.
- Fix theme settings and component styles before adding one-off mobile overrides that can drift across templates.
Bad, better, best examples
Bad
Synthetic example: a 16px white Shop now label measures 2.19:1 on an orange button, while a sticky promotion covers part of the menu.
Better
The CTA clears 4.5:1 after the button darkens, and the promotion no longer covers the menu, but the close and cart controls remain crowded.
Best
The offer stays readable, primary controls have clear target space, the page reflows at 320 CSS pixels, and keyboard focus reaches the first product path in a logical order.
Common mistakes
- Treating a passing contrast sample as proof that the whole mobile homepage is usable.
- Testing the theme preview without the real announcement bar, popup, chat launcher, or app embeds.
- Increasing text size without checking the new wrapping, section height, and control positions.
- Using color alone to communicate sale, error, stock, selection, or focus state.
Questions merchants ask
What is the fastest mobile homepage usability test?
Open the live homepage on a real phone and stop at each of the first three screens. For every screen, ask whether you can read the offer, activate the intended shopping action, and continue without closing an obstacle or scrolling sideways.
What contrast ratio should ecommerce homepage text use?
WCAG 2.2 requires at least 4.5:1 for normal text and 3:1 for large text. Measure the real foreground and background pair; do not assume a brand color is readable because it looks vivid in a design file.
Does ReviewMyEcom automatically test all mobile usability issues?
No. The current automated scope is a bounded color-contrast check on the public mobile homepage. Use the manual steps in this guide for layout, target spacing, reflow, overlays, and keyboard flow.
Primary references
Defines the 4.5:1 normal-text and 3:1 large-text thresholds used in this guide.
Defines the 24-by-24 CSS-pixel minimum and spacing exceptions for pointer targets.
Explains the 320-CSS-pixel reflow test for ordinary vertically scrolling content.
Explains why sequential focus order must preserve meaning and operability.
Explains the visible focus-indicator requirement used in the manual keyboard test.
Start with measured contrast, then finish the manual review
Run the free homepage teardown for the currently supported contrast evidence, then use the read-act-continue method for the wider mobile experience.
Author and editorial note
Substantially revised from ReviewMyEcom's validated color-contrast check, its July 7 merchant-guidance repair, and current WCAG 2.2 guidance. AI assisted with structure and drafting; the capability scope, first-party evidence, examples, and source claims were checked against the shipped product and primary sources. The audit automates contrast only; the wider mobile method is manual guidance.