Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:

Fewer Letters	More Letters
CF	CloudFlare
CGNAT	Carrier-Grade NAT
DNS	Domain Name Service/System
HTTP	Hypertext Transfer Protocol, the Web
HTTPS	HTTP over SSL
IP	Internet Protocol
NAS	Network-Attached Storage
NAT	Network Address Translation
NUC	Next Unit of Computing brand of Intel small computers
SSH	Secure Shell for remote terminal access
SSL	Secure Sockets Layer, for transparent encryption
TLS	Transport Layer Security, supersedes SSL
UDP	User Datagram Protocol, for real-time communications
VPN	Virtual Private Network
VPS	Virtual Private Server (opposed to shared hosting)

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15 acronyms in this thread; the most compressed thread commented on today has 13 acronyms.

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