Temporary storage of website data in a browser or CDN to improve load speed and reduce server requests.
A cache is a temporary storage location for data that is frequently accessed. Instead of fetching data from the original source (which might be slow or far away) every time, the system grabs it from the cache (which is fast and close).
Caching is the single biggest factor in perceived site speed. The only downside is "freshness"—if you update a price or a typo, users might still see the old version until the cache expires or is cleared.
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 "Cache" is just the first step. Our team at TwoSquares specializes in technical SEO and digital strategy, helping brands turn complex concepts into measurable growth.