[{"data":1,"prerenderedAt":61},["ShallowReactive",2],{"\u002Fglossary\u002Fservice-worker-cache-browser":3,"\u002Fglossary\u002Fservice-worker-cache-browser:related":44},{"id":4,"title":5,"author":6,"authorImage":7,"body":8,"category":28,"date":29,"description":30,"draft":31,"extension":32,"letter":33,"meta":34,"navigation":35,"path":36,"readTime":37,"related":38,"seo":39,"stem":41,"term":42,"__hash__":43},"glossary\u002Fglossary\u002Fservice-worker-cache-browser.md","Service Worker Cache (Browser)","Fabian Krumbholz","\u002Fimages\u002Fauthors\u002Ffabian-krumbholz.webp",{"type":9,"value":10,"toc":24},"minimark",[11],[12,13,14,15,19,20,23],"p",{},"This is the fastest cache available. It is a storage space directly inside the user's web browser that is controlled by the ",[16,17,18],"strong",{},"Service Worker",". When content is served from this cache, there is zero network delay, resulting in the fastest possible page loads. It is used for repeat visits and for storing content delivered via ",[16,21,22],{},"Predictive Preloads",".",{"title":25,"searchDepth":26,"depth":26,"links":27},"",2,[],null,"April 8, 2026","This is the fastest cache available. It is a storage space directly inside the user's web browser that is controlled by the Service Worker.",false,"md","S",{},true,"\u002Fglossary\u002Fservice-worker-cache-browser","1 min read",[],{"title":40,"description":30},"Service Worker Cache (Browser): Definition | Web Performance Glossary","glossary\u002Fservice-worker-cache-browser","Service Worker Cache","p__76ax3QYWDK9HrzSg0hQCWON0BL4h2yKc16SQjtOs",[45,49,53,57],{"path":46,"title":47,"description":48,"letter":33},"\u002Fglossary\u002Fsearch-engine-optimization-seo","Search Engine Optimization (SEO)","SEO is the process of improving a website's visibility in search engine results pages (like Google). The goal is to rank higher than competitors for relevant search queries to attract more organic (free) traffic.",{"path":50,"title":51,"description":52,"letter":33},"\u002Fglossary\u002Fserver-response-time","Server Response Time","Server Response Time is a component of Time to First Byte that measures how long the server takes to process a request and start sending back a response, excluding network latency.",{"path":54,"title":55,"description":56,"letter":33},"\u002Fglossary\u002Fserver-timing","Server Timing","Server Timing is a browser API that allows the backend to communicate performance metrics about its own internal processes (e.g., database query time, time to render a component) to the browser via HTTP headers.",{"path":58,"title":59,"description":60,"letter":33},"\u002Fglossary\u002Fserver-side-ab-testing","Server-Side A\u002FB Testing","This is a performance-friendly method for running A\u002FB tests. Unlike Client-Side A\u002FB Testing, the decision of which variation to show a user is made on the Origin Server.",1787756716040]