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Squid vs Apache Traffic Server: catalog facts
Squid	Apache Traffic Server
Free Free and open source under the GNU GPL; donations accepted.	Free Apache Traffic Server is open source under Apache-2.0.
Windows, Linux, Self-hosted	Self-hosted
Caching that reduces bandwidth use Extensive access control rules	Caches HTTP requests to reduce origin load Can act as a proxy and load balancer
Configuration is large and takes time to learn Heavier than minimal proxies for simple forwarding	Requires server installation and administration
Downloadable app, Self-hosted	Downloadable app, Self-hosted
Open source	Open source
License: GPL	License: Apache-2.0
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.