https://comparison.metacog.co.kr/tags/long-polling/Recent content in Long-Polling on IT ComparisonHugoen-usSun, 02 Aug 2026 23:49:39 +0900https://comparison.metacog.co.kr/posts/2026-08-02-long-polling-vs-websockets-vs-server-sent-events-choosing-a/Sun, 02 Aug 2026 23:49:39 +0900https://comparison.metacog.co.kr/posts/2026-08-02-long-polling-vs-websockets-vs-server-sent-events-choosing-a/<h2 id="overview">Overview</h2> <p>Long polling, WebSockets, and Server-Sent Events are three techniques for pushing live updates from a server to a browser without the client repeatedly refreshing the page. <strong class="kw">WebSockets</strong> open a single full-duplex socket for two-way messaging, while <strong class="kw">Server-Sent Events</strong> keep one HTTP connection open for one-way server-to-client streaming; long polling predates both and fakes real-time updates by re-issuing HTTP requests. Picking the right one depends on whether you need bidirectional traffic, binary data, or just simple broadcast updates.</p>