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    Frontend System Design, module F02

    Web fundamentals and networking

    How a request travels from the browser, how HTTP, caches, storage and the same-origin policy shape what a front end can do.

    5 of 11 lessons published

    1. 1
      DNS, TCP, TLS and the Request Lifecycle

      Flagship · beginner

    2. 2
      HTTP/1.1, HTTP/2 and HTTP/3 for Front-End Engineers

      Flagship · intermediate

    3. 3

      HTTP Methods, Status Codes and Headers a Front End Relies On (coming soon)

      Standard · beginner

    4. 4
      HTTP Caching for the Front End

      Flagship · intermediate

    5. 5

      CDN and Edge Caching From the Browser's Side (coming soon)

      Standard · intermediate

    6. 6

      Browser Storage: Cookies, Web Storage, IndexedDB and the Cache API (coming soon)

      Standard · beginner

    7. 7

      Cookies and Web Storage in Depth (coming soon)

      Standard · beginner

    8. 8

      IndexedDB, Storage Quotas and Eviction (coming soon)

      Standard · intermediate

    9. 9
      The Same-Origin Policy and CORS

      Flagship · intermediate

    10. 10
      CORS in Practice: Preflights, Credentials and Debugging

      Standard · intermediate

    11. 11

      Reading a Network Waterfall: Putting Web Fundamentals to Work (coming soon)

      Focused · intermediate

    All Frontend System Design modules