A permanent redirect that tells browsers and search engines a page has moved to a new URL forever. This is essential for maintaining SEO value when restructuring your site or changing URL patterns. In Framer, configure 301 redirects in your site settings under the Redirects section to preserve link equity from old URLs.

A custom error page displayed when visitors try to access a URL that doesn’t exist on your site. A well-designed 404 page helps retain visitors by offering navigation options and search functionality rather than a dead end. Framer lets you create branded 404 pages that match your site’s design and guide users back to relevant content.

A method of comparing two versions of a page to determine which performs better based on user behavior and conversions. This data-driven approach removes guesswork from design decisions by letting real visitors vote with their actions. Framer's built-in A/B testing in Metrics lets you run experiments without third-party tools or complex setup.

An animation that plays when an element first becomes visible on screen, typically as the user scrolls down the page. These effects add polish and draw attention to content as it enters the viewport. Framer provides various appear effects like fade, slide, scale, and blur that can be customized for timing, delay, and easing.

An HTML attribute that provides accessible names for elements that lack visible text labels, helping screen readers describe interactive elements. These are essential for icon buttons, decorative links, and complex widgets where the visual context isn’t available to assistive technology. Use aria-label when there’s no visible text, and aria-labelled by to reference existing text on the page. See Improving Accessibility with ARIA Labels. See Optimizing images, icons & interactive elements.

The CSS property that rounds the corners of an element, measured in pixels or percentages. Border radius transforms harsh rectangles into friendlier, more organic shapes—from subtle rounding to perfect circles. Framer provides individual corner controls for asymmetric rounding and variables to maintain consistent corner radii across your design system.