Perplexity API

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    {
      "type": "paragraph",
      "answer": "Here are the main differences between HTTP/2 and HTTP/3, focused on transport, performance, and security aspects."
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      "items": [
        {
          "type": "paragraph",
          "answer": "Transport layer HTTP/2 runs over TCP. HTTP/3 runs over QUIC, which itself sits on UDP."
        },
        {
          "type": "paragraph",
          "answer": "Head-of-line blocking HTTP/2 can suffer head-of-line blocking at the TCP layer; if a single packet is lost, streams can stall. HTTP/3 eliminates transport-layer HOL blocking by using QUIC’s independent streams, so loss on one stream doesn’t block others."
        },
        {
          "type": "paragraph",
          "answer": "Connection establishment and latency HTTP/2 uses a TCP+TLS handshake, which can be multi-step and may add round-trips. HTTP/3 combines transport setup and encryption on QUIC, often reducing initial connection latency and enabling faster handshakes."
        },
        {
          "type": "paragraph",
          "answer": "Security by default HTTP/2 typically uses TLS (TLS 1.2 or 1.3) but is not mandated by the protocol itself. HTTP/3 mandates encryption by design (TLS 1.3 integrated into QUIC)."
        },
        {
          "type": "paragraph",
          "answer": "Multiplexing and performance HTTP/2 introduces multiplexing over a single TCP connection, reducing the need for multiple connections but still limited by TCP’s characteristics. HTTP/3’s QUIC transport allows independent streams with better resilience to packet loss and generally improved performance on wireless or lossy networks."
        },
        {
          "type": "paragraph",
          "answer": "Connection migration HTTP/2 connections are tied to a single IP; changing networks (e.g., moving from Wi‑Fi to cellular) can disrupt the connection. HTTP/3 (QUIC) supports seamless connection migration, maintaining the session across network changes."
        },
        {
          "type": "paragraph",
          "answer": "Headers and optimization Both HTTP/2 and HTTP/3 use header compression (HPACK for HTTP/2; QPACK for HTTP/3), but QUIC’s design reduces some re-ordering and buffering issues that affect performance."
        },
        {
          "type": "paragraph",
          "answer": "Standards and adoption HTTP/2 (RFC 9113) is widely deployed and mature. HTTP/3 (RFC 9114) is newer; adoption is growing but may involve server and client support considerations and potential middlebox compatibility nuances."
        }
      ]
    },
    {
      "type": "paragraph",
      "answer": "If you want, I can tailor this to a specific use case (e.g., a mobile app, a high-latency network, or a content-heavy website) and explain which version might be preferable and why."
    }
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  "markdown": "Here are the main differences between HTTP/2 and HTTP/3, focused on transport, performance, and security aspects.\n\n- Transport layer\n  - HTTP/2 runs over TCP.\n  - HTTP/3 runs over QUIC, which itself sits on UDP.\n\n- Head-of-line blocking\n  - HTTP/2 can suffer head-of-line blocking at the TCP layer; if a single packet is lost, streams can stall.\n  - HTTP/3 eliminates transport-layer HOL blocking by using QUIC’s independent streams, so loss on one stream doesn’t block others.\n\n- Connection establishment and latency\n  - HTTP/2 uses a TCP+TLS handshake, which can be multi-step and may add round-trips.\n  - HTTP/3 combines transport setup and encryption on QUIC, often reducing initial connection latency and enabling faster handshakes.\n\n- Security by default\n  - HTTP/2 typically uses TLS (TLS 1.2 or 1.3) but is not mandated by the protocol itself.\n  - HTTP/3 mandates encryption by design (TLS 1.3 integrated into QUIC).\n\n- Multiplexing and performance\n  - HTTP/2 introduces multiplexing over a single TCP connection, reducing the need for multiple connections but still limited by TCP’s characteristics.\n  - HTTP/3’s QUIC transport allows independent streams with better resilience to packet loss and generally improved performance on wireless or lossy networks.\n\n- Connection migration\n  - HTTP/2 connections are tied to a single IP; changing networks (e.g., moving from Wi‑Fi to cellular) can disrupt the connection.\n  - HTTP/3 (QUIC) supports seamless connection migration, maintaining the session across network changes.\n\n- Headers and optimization\n  - Both HTTP/2 and HTTP/3 use header compression (HPACK for HTTP/2; QPACK for HTTP/3), but QUIC’s design reduces some re-ordering and buffering issues that affect performance.\n\n- Standards and adoption\n  - HTTP/2 (RFC 9113) is widely deployed and mature.\n  - HTTP/3 (RFC 9114) is newer; adoption is growing but may involve server and client support considerations and potential middlebox compatibility nuances.\n\nIf you want, I can tailor this to a specific use case (e.g., a mobile app, a high-latency network, or a content-heavy website) and explain which version might be preferable and why.",
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    {
      "title": "HTTP/2 vs HTTP/3: A Comparison",
      "link": "https://ably.com/topic/http-2-vs-http-3",
      "source": "ably.com",
      "snippet": "A deep dive into the similarities and differences between HTTP/2 and HTTP/3, including strengths, weaknesses, the past, and the future.",
      "date": "2024-11-15T00:00:00",
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      "title": "How This Applies In Practice",
      "link": "https://www.azion.com/en/learning/performance/http2-vs-http3/",
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      "snippet": "Learn the differences between HTTP/2 and HTTP/3, how each protocol works, and when to use them for better web performance. Understand multiplexing, QUIC, head-of-line blocking, TLS 1.3, connection migration, and how HTTP/3 improves latency and reliability on modern networks.",
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      "title": "HTTP vs. HTTP/2 vs. HTTP/3: What's the Difference?",
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      "snippet": "Let's explore HTTP, HTTP/2, and HTTP/3",
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      "title": "HTTP/2 vs. HTTP/3",
      "link": "https://www.logicmonitor.com/deep-dive/http3-vs-http2/introduction",
      "source": "logicmonitor.com",
      "snippet": "HTTP/3 uses QUIC protocol to eliminate head-of-line blocking and reduce latency compared to HTTP/2. Compare protocols, multiplexing, security, and performance.",
      "date": "2026-07-22T00:00:00",
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      "snippet": "HTTP 2 vs HTTP 3 — What's the Difference? • 1996 → HTTP 1 • 1997 → HTTP 1.1 • 2015 → HTTP 2 • 2022 → HTTP 3 But what’s the difference? Starting at the foundation: 🔹 𝗛𝗧𝗧𝗣 𝟭.𝟭: ☑ 𝗣𝗲𝗿𝘀𝗶𝘀𝘁𝗲𝗻𝘁 𝗰𝗼𝗻𝗻𝗲𝗰𝘁𝗶𝗼𝗻𝘀 — Reuses connections instead of opening new ones ☑ 𝗖𝗵𝘂𝗻𝗸𝗲𝗱 𝘁𝗿𝗮𝗻𝘀𝗳𝗲𝗿𝘀 — Sends data in parts instead of waiting for the full response ☑ 𝗜𝗺𝗽𝗿𝗼𝘃𝗲𝗱 𝗰𝗮𝗰𝗵𝗶𝗻𝗴 — Introduced headers for better caching and connection management 🅇 𝗦𝗲𝗾𝘂𝗲𝗻𝘁𝗶𝗮𝗹 𝗿𝗲𝗾𝘂𝗲𝘀𝘁𝘀 — Requests block each other (HoL blocking at the request...",
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      "title": "What is HTTP/3? How it is Different From HTTP/2?",
      "link": "https://www.geeksforgeeks.org/computer-networks/what-is-http-3-how-it-is-different-from-http-2/",
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      "title": "HTTP/2 vs HTTP/3: Improving Web Performance",
      "link": "https://www.oshyn.com/blog/http2-vs-http3-performance",
      "source": "oshyn.com",
      "snippet": "Learn the key differences between HTTP/2 and HTTP/3, how QUIC enhances speed and reliability, and why upgrading can improve web performance and security.",
      "date": "2025-02-28T00:00:00",
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      "question": "How does HTTP/3 improve latency over HTTP/2"
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      "question": "HTTP/2 vs HTTP/3: header compression differences"
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