Web Performance Optimization

  1. Network and Delivery Optimization
    1. Understanding Network Fundamentals
      1. TCP/IP Basics
        1. Bandwidth vs Latency
          1. Network Congestion
            1. Mobile Network Characteristics
            2. Minimizing HTTP Requests
              1. Request Overhead Analysis
                1. File Bundling Strategies
                  1. JavaScript Bundling
                    1. CSS Bundling
                      1. Bundle Splitting Considerations
                      2. CSS Sprites
                        1. Image Combination Techniques
                          1. Sprite Generation Tools
                            1. Maintenance Considerations
                            2. Inlining Critical Resources
                              1. Critical CSS Inlining
                                1. Small Asset Inlining
                                  1. Base64 Encoding Trade-offs
                                2. HTTP Protocol Optimization
                                  1. HTTP/1.1 Characteristics
                                    1. Connection Limitations
                                      1. Head-of-Line Blocking
                                        1. Keep-Alive Connections
                                        2. HTTP/2 Advantages
                                          1. Multiplexing Benefits
                                            1. Server Push
                                              1. Header Compression (HPACK)
                                                1. Binary Protocol
                                                2. HTTP/3 and QUIC
                                                  1. UDP-Based Transport
                                                    1. Improved Multiplexing
                                                      1. Reduced Connection Overhead
                                                      2. Protocol Migration Strategies
                                                      3. Domain Name System (DNS) Optimization
                                                        1. DNS Resolution Process
                                                          1. Reducing DNS Lookups
                                                            1. Domain Consolidation
                                                              1. Subdomain Optimization
                                                              2. DNS Prefetching
                                                                1. Implementation Techniques
                                                                  1. Browser Support
                                                                  2. DNS Caching Strategies
                                                                    1. TTL Optimization
                                                                      1. Recursive vs Authoritative Caching
                                                                    2. Connection Optimization
                                                                      1. TCP Connection Establishment
                                                                        1. Connection Reuse
                                                                          1. Connection Pooling
                                                                            1. Keep-Alive Configuration
                                                                            2. TLS/SSL Optimization
                                                                              1. TLS Handshake Process
                                                                                1. Certificate Optimization
                                                                                  1. OCSP Stapling
                                                                                    1. Session Resumption
                                                                                      1. HTTP Strict Transport Security (HSTS)
                                                                                        1. Certificate Transparency
                                                                                        2. Latency Reduction Techniques
                                                                                          1. Geographical Server Placement
                                                                                            1. Anycast Routing
                                                                                              1. Edge Computing
                                                                                                1. Regional Content Distribution

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                                                                                              3. The Critical Rendering Path

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                                                                                              5. Asset Optimization