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A sticky bar is a horizontal banner fixed to the top or bottom of a webpage that remains visible as the visitor scrolls. Unlike a static announcement banner that disappears as soon as the user scrolls past it, a sticky bar stays in the viewport at all times. Sticky bars are used to keep promotions, shipping thresholds, CTAs, or important information consistently visible throughout the browsing session.
Attention on a web page is scarce and fleeting. A promotional message placed in the hero section of a product page is only visible for the first few seconds of a visit — the moment a visitor starts scrolling, it disappears. A sticky bar solves this problem by keeping the message persistently in view regardless of where the visitor is on the page.
For D2C brands running sale campaigns, a sticky bar with "Diwali Sale — 25% Off Sitewide — Ends Sunday" ensures that every visitor, no matter where they are on the page, is aware of the promotion and its deadline. This is a persistent urgency signal that reinforces conversion intent throughout the entire browsing session.
Sticky bars are also highly effective for communicating free shipping thresholds. A bar that says "Free shipping on orders above ₹499" visible at all times on the cart and product pages reduces the surprise of seeing a shipping fee at checkout — which is one of the main causes of checkout abandonment.
Nykaa uses a sticky top bar across their product pages during sale periods: "Sale ends tonight — Use code PINK20 for 20% off." The bar is minimal — one line of text and the code — but it persists as shoppers scroll through product images, descriptions, and reviews. Because the promotional context never disappears, shoppers who might have forgotten about the discount while reading ingredient lists are consistently reminded why they should buy now. This passive reinforcement contributes meaningfully to conversion during sale periods.
The message, color, and position (top vs. bottom) of a sticky bar are all testable. CustomFit.ai allows you to experiment with different sticky bar messages for different audience segments — showing a first-order discount message to new visitors and a loyalty points reminder to returning visitors who haven't purchased recently.
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