RFC

Name

Status

959

FILE TRANSFER PROTOCOL (FTP)

1035

DOMAIN NAMES - IMPLEMENTATION AND SPECIFICATION

client only

1157

A Simple Network Management Protocol (SNMP)

version 2c

1413

Identification Protocol (IDENT)

note bug 2853

1738

Uniform Resource Locators (URL)

1902

Structure of Management Information
for Version 2 of the
Simple Network Management Protocol (SNMPv2)

1905

Protocol Operations
for Version 2 of the
Simple Network Management Protocol (SNMPv2)

1945

Hypertext Transfer Protocol -- HTTP/1.0

2181

Clarifications to the DNS Specification

2186

Internet Cache Protocol (ICP), version 2

2187

Application of Internet Cache Protocol (ICP), version 2

2227

Simple Hit-Metering and Usage-Limiting for HTTP

2428

FTP Extensions for IPv6 and NATs

3.1+

2518

HTTP Extensions for Distributed Authoring -- WEBDAV

3.1+

2660

The Secure HyperText Transfer Protocol (Secure-HTTP/1.4)

2756

Hyper Text Caching Protocol (HTCP/0.0)

2817

Upgrading to TLS Within HTTP/1.1

2818

HTTP Over TLS

2964

Use of HTTP State Management

2965

HTTP State Management Mechanism

3225

Indicating Resolver Support of DNSSEC

no-support conditional compliance.

3310

Hypertext Transfer Protocol (HTTP) Digest Authentication
Using Authentication and Key Agreement (AKA)

3493

Basic Socket Interface Extensions for IPv6

3507

Internet Content Adaptation Protocol (ICAP)

client only, PRECACHE vectors only

3513

Internet Protocol Version 6 (IPv6) Addressing Architecture

3596

DNS Extensions to Support IP Version 6

3875

The Common Gateway Interface (CGI) Version 1.1

3986

Uniform Resource Identifier (URI): Generic Syntax

since Squid-4.12. still uses rc1738 encoder on some URI segments and helper protocol.

4001

Textual Conventions for Internet Network Addresses

4559

SPNEGO-based Kerberos and NTLM HTTP Authentication
in Microsoft Windows

6540 (BCP 177)

IPv6 Support Required for All IP-Capable Nodes

6585

Additional HTTP Status Codes

6762

Multicast DNS

client only

7230

Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing

almost

see Features/HTTP11

7231

Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content

almost

see Features/HTTP11

7232

Hypertext Transfer Protocol (HTTP/1.1): Conditional Requests

almost

see Features/HTTP11

7233

Hypertext Transfer Protocol (HTTP/1.1): Range Requests

conditional, see Features/HTTP11

7234

Hypertext Transfer Protocol (HTTP/1.1): Caching

conditional, see Features/HTTP11

7235

Hypertext Transfer Protocol (HTTP/1.1): Authentication

7239

Forwarded HTTP Extension

7240

Prefer HTTP Extension

conditional; proxy MUST relay unless listed in Connection header.

7538

The Hypertext Transfer Protocol Status Code 308 (Permanent Redirect)

7540

Hypertext Transfer Protocol Version 2 (HTTP/2)

HTTP/1.x relay and no-support conditional compliance. see Features/HTTP2

7541

HPACK: Header Compression for HTTP/2

see Features/HTTP2

7615

HTTP Authentication-Info and Proxy-Authentication-Info Response Header Fields

7616

HTTP Digest Access Authentication

Missing support for several Digest features

7617

The 'Basic' HTTP Authentication Scheme

missing new charset support.

7694

Hypertext Transfer Protocol (HTTP) Client-Initiated Content-Encoding

7858

Specification for DNS over Transport Layer Security (TLS)

8187

Indicating Character Encoding and Language for HTTP Header Field Parameters

8246

HTTP Immutable Responses

partial. see bug 4774

8586

Loop Detection in Content Delivery Networks (CDNs)

from Squid-5.

draft-forster-wrec-wccp-v1-00.txt

WCCP 1.0

draft-wilson-wccp-v2-12-oct-2001.txt

WCCP 2.0

almost

draft-vinod-carp-v1-03.txt

Microsoft CARP peering algorithm

draft-ietf-radext-digest-auth-06.txt

RADIUS Extension for Digest Authentication

ISO-8859-1

Latin alphabet No. 1