Pop-up

A pop-up is a window displayed over a web page that grabs the user's attention with a message, form or offer. It typically appears above the main content after a specific action — arriving on the page, scrolling through part of it, or attempting to leave the site — and is one of the most widely used tools for collecting contacts and boosting conversion.

How a pop-up works

A pop-up is an interface element triggered by a specific event and layered over the page content, often with a dimmed background. Its trigger is what matters most:

• Exit intent — the window appears when the cursor moves toward closing the tab.
• Time-based — after a defined amount of time on the page.
• Scroll-based — after scrolling a set percentage of the content.
• Click — after interacting with a button or link.

A well-designed pop-up includes a clear call to action and a visible close button so it does not frustrate visitors.

Pop-ups in practice

Pop-ups serve various marketing and informational goals:

1. List building — a sign-up form window, often paired with a lead magnet.
2. Promotions — discount codes and time-limited offers.
3. Consents and notices — cookie banners, legal messages and web push prompts.

The key is moderation: too many pop-ups worsen the user experience and can lower search rankings. The best results come from precise targeting and testing different variations of content and timing.

Types of pop-ups

In practice you meet several distinct variants that differ in form and intrusiveness:

• Modal — a central window that dims the background and blocks interaction with the page until closed.
• Slide-in — a discreet box that slides in from a corner of the screen, less invasive for the user.
• Full-screen (welcome mat) — an overlay covering the whole screen; effective but risky for SEO on mobile.
• Floating bar — a slim bar at the top or bottom of the page with a message and a button.

The choice of form should follow the campaign's goal and the audience's sensitivity — the more important the message, the more visibility you can justify, but always with an easy way to close the window.