Tag

http

17 articles

Sep 21, 2026 Sharding Session Data and the Size Ceiling How session keys are partitioned across nodes as the store grows, why resharding is safer at a partition layer, and what a large cookie costs on every request. backend systems
May 21, 2026 Persistent Connections, Pipelining, and Connection Reuse Why HTTP/1.1 keeps the connection open, what pipelining actually requires of a server, and how idle timeouts and half-closed sockets break reuse. internet protocols
May 13, 2026 Status Codes, Interim Responses, and When a Response Has No Body How the three-digit status code steers client behaviour, why 1xx responses break naive parsers, and which statuses forbid or require a body. internet protocols
Mar 24, 2026 HTTP Message Framing: Start Lines, Field Lines, and CRLF How an HTTP/1.1 message is divided into a start line, a field section, and a body, and which parts of that grammar still decide whether a parser succeeds. internet protocols
Mar 22, 2026 Cache Freshness, Age, and the Directive Precedence Rules How a cache computes whether a stored response is fresh, how Age accumulates across hops, and which directive wins when several apply. internet protocols
Jan 29, 2026 Message Delimitation and the Mechanics of Request Smuggling How Content-Length, Transfer-Encoding, and connection close define where a message ends, and how disagreements between parsers turn that boundary into an attack. internet protocols
Jan 2, 2026 Byte-Range Reads: Partial Responses, Alignment, and Parallel Fetch A Range header turns one object into many concurrent reads. What the 206 response guarantees, why alignment matters for throughput, and where range requests break. cloud infrastructure
Dec 17, 2025 Registry Protocols: Blob Uploads, Ranges and Cross-Repository Mounts The HTTP API behind image distribution, including chunked upload sessions, resumable ranges, manifest validation and the mount shortcut that avoids re-uploading shared layers. virtualization
Jun 24, 2025 Cookie Scope, Attributes, and Transport Rules The exact matching rules that decide whether a browser attaches a session cookie to a request, and how Domain, Path, Secure, HttpOnly, and SameSite narrow that decision. backend systems
Dec 1, 2024 Intermediaries, Hop-by-Hop Fields, and the Via Chain How proxies, gateways, and tunnels differ, which fields an intermediary must consume rather than forward, and what forwarding does to message semantics. internet protocols
Mar 19, 2024 Resource Identity and URI Design in REST How REST separates the name of a thing from the bytes that represent it, and which URI choices survive changes to the underlying data model. backend systems
Jan 23, 2024 Method Semantics: Safe, Idempotent, and Cacheable Requests What the three method properties actually license a client, cache, or proxy to do, and where the definitions stop matching what real methods do. internet protocols
Dec 22, 2023 Byte Ranges, Partial Responses, and Range Request Cost How Range and Content-Range select a byte window, when a server must answer 206 rather than 200, and why many small ranges are a denial-of-service shape. internet protocols
Jun 30, 2023 The Registry Pull Path From Manifest to Blob The HTTP exchanges a client performs to turn a reference into a local image, including token authentication, blob redirects, range requests, and where each step can fail. virtualization
May 25, 2023 Proactive Content Negotiation and the Quality Value Grammar How Accept, Accept-Language, and Accept-Encoding rank representations, what q-values order, and why Vary makes negotiation cacheable. internet protocols
Feb 25, 2023 Conditional Requests: Entity Tags, Dates, and Preconditions How If-None-Match and If-Modified-Since turn a full response into 304, how strong and weak validators differ, and why the precondition order is fixed. internet protocols
Dec 26, 2022 Content Negotiation and Representation Formats How Accept headers, quality values, and the Vary header decide which representation a cache may reuse, and why most APIs settle on a single format. backend systems