The visible area of a web page on a user's device. Design elements should fit within this space for optimal UX.
The viewport is the portion of a page visible on a device at any moment. Viewport size changes by device, orientation, and browser UI. Designing for the viewport is crucial for mobile UX: key information and CTAs must be visible and usable without awkward scrolling or layout shifts.
Browse related definitions in the same glossary category.
Algorithm
A complex system used by search engines to retrieve data and deliver results for a query. Google uses multiple algorithms to rank websites.
Algorithm Update
Changes made to a search engine's ranking algorithms that can impact website visibility and traffic.
AMP (Accelerated Mobile Pages)
A framework that enables ultra-fast loading of mobile pages by simplifying HTML and limiting scripts.
API Quotas
Hard limits on total API usage over a billing period, often tied to pricing tiers.
API Rate Limits
Restrictions on how many API requests can be made within a time period, requiring throttling and retry logic.
Broken Link
A hyperlink that no longer works because the destination page has been deleted or moved. Damages UX and SEO value.
Understanding "Viewport" is just the first step. Our team at TwoSquares specializes in technical SEO and digital strategy, helping brands turn complex concepts into measurable growth.