HTTP topic

HTTP intermediaries

HTTP often passes through intermediaries before reaching an origin. Use this cluster to understand what proxies and CDNs may transform, where TLS changes visibility, and how to trace altered fields or stale responses to the responsible layer.

Recommended foundation

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This entry establishes the shared model used by the references, diagnostics, and experiments below.

Learn

Trace HTTP through proxies and CDNs

Treat every intermediary as a possible HTTP peer and identify the hop that produced an observation.

HTTP intermediaries

Learn

1 reviewed entry

intermediate
Find the TLS boundaries around HTTP
TLS protects one connection between peers; trace each termination point before reasoning about end-to-end visibility.

HTTP intermediaries

Glossary

1 reviewed entry

beginner
Intermediary
An intermediary acts between an HTTP client and server while forwarding, transforming, caching, or tunneling traffic.

HTTP intermediaries

HTTP History

2 reviewed entries

intermediate
HTTP/1.0: when the growing Web needed real messages
HTTP/1.0 documented the message features implementations had added as the Web expanded beyond retrieving HTML documents.
intermediate
HTTP/1.1: persistent connections and the architecture of scale
HTTP/1.1 made connection reuse, virtual hosting, precise framing, richer caching, and intermediaries work at Web scale.

HTTP intermediaries

Start here

Trace HTTP through proxies and CDNs

Learn

Find the TLS boundaries around HTTP

Glossary

Intermediary

HTTP History

HTTP/1.0: when the growing Web needed real messages

HTTP/1.1: persistent connections and the architecture of scale