- [Reuse sessions](/browser-rendering/workers-bindings/reuse-sessions/): You can optimize your setup and decrease startup time by reusing sessions instead of launching a new browser every time. If you are concerned about maintaining test isolation, for example for tests that depend on a clean environment, we recommend using [incognito browser contexts](https://pptr.dev/api/puppeteer.browser.createbrowsercontext), which isolate cookies and cache with other sessions.
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