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Software Protocols: Web Resources and Links

The main protocols of networking and software — specifications, messaging, wireless, standards bodies and tools.

51 topics•6 categories•Updated October 2026

Introductions to Protocols

8 entries

Start here.

01Communication protocol (Wikipedia)Overview. 02Network Protocols (Tutorialspoint)Tutorial. 03Types of Network Protocols (EdrawSoft)Overview of types. 04What is a protocol? (Cloudflare)Cloudflare learning centre. 05TCP/IP (Cloudflare)Cloudflare overview. 06Protocols vs. SoftwareMedium article on the protocol approach. 07HTTP (MDN)MDN HTTP documentation. 08Evolution of HTTP (MDN)HTTP/0.9 to HTTP/3.

Internet Protocol Specifications

13 entries

The defining RFCs.

09TCP (RFC 9293)Transmission Control Protocol. 10IPv6 (RFC 8200)Internet Protocol, version 6. 11HTTP Semantics (RFC 9110)Core HTTP semantics. 12HTTP/3 (RFC 9114)HTTP over QUIC. 13QUIC (RFC 9000)UDP-based multiplexed transport. 14TLS 1.3 (RFC 8446)Transport layer security. 15DNS (RFC 1035)Domain names implementation and specification. 16SSH (RFC 4253)SSH transport layer protocol. 17SIP (RFC 3261)Session Initiation Protocol. 18SMTP (RFC 5321)Simple Mail Transfer Protocol. 19FTP (RFC 959)File Transfer Protocol. 20BGP-4 (RFC 4271)Border Gateway Protocol. 21OSPF v2 (RFC 2328)Open Shortest Path First routing.

Messaging, IoT & Application Protocols

9 entries

Protocols for services and devices.

22MQTTLightweight publish-subscribe messaging for IoT. 23MQTT 5.0 specificationOASIS standard. 24AMQPAdvanced Message Queuing Protocol. 25gRPCHigh-performance RPC framework. 26CoAP (RFC 7252)Constrained Application Protocol. 27WebRTC (W3C)Real-time communication in browsers. 28OpenSSHSecure shell implementation. 29Fusion Embedded Security Protocols (Unicoi)Embedded security protocol suite. 30Security Software Protocols (Rambus)Security protocol IP.

Wireless & Standards Bodies

10 entries

Radio protocols and who defines them.

31Bluetooth SpecificationsBluetooth Core and profiles. 32Bluetooth Technology OverviewIntroduction. 333GPPMobile telecommunications standards. 34IEEE 802.11 working groupWi-Fi standards. 35IETFInternet Engineering Task Force. 36RFC EditorIndex of Requests for Comments. 37IANA Protocol RegistriesProtocol parameter registries. 38IANA Service Names and Port NumbersPort number registry. 39W3C StandardsWeb standards. 40OASISStandards consortium (MQTT, AMQP).

Tools

2 entries

Look at protocols in action.

41WiresharkNetwork protocol analyser. 42Wireshark documentationUser guide and wiki.

Related Pages

9 entries

Neighbouring pages on this site.

43SSL and TLS ResourcesSSL and TLS. 44MQTT BrokersMQTT brokers. 45KafkaApache Kafka resources. 465G5G networks. 47Wireless SecurityWireless security. 48NetworkingNetworking hub. 49Operating SystemsOperating systems. 50System SoftwareSystem software. 51IT SecurityIT security hub.

Frequently Asked Questions

What is a protocol?

An agreed set of rules for how systems format, send, receive and interpret data.

Where are protocols defined?

Mostly in RFCs from the IETF, with others from IEEE, 3GPP, W3C, OASIS and the Bluetooth SIG.

How can I see protocols at work?

Capture traffic with Wireshark and read the matching RFC alongside it.

What replaced the older entries?

Dead or outdated links were removed, redirects updated, and current standards and tools added.

How current is this list?

Links were checked in October 2026. Sites that block automated checks are kept and may need a manual click.