🆚 Apache Traffic Server vs. Varnish

Apache Traffic Server is an open-source high-performance HTTP caching proxy server that serves cached content at the network edge to reduce origin load and improve response times.

It provides an event-driven core with asynchronous native DNS for high concurrency, and supports custom plugins written in C/C++ or Lua for modifying headers, inspecting caches, handling Edge Side Includes, and implementing custom caching algorithms.

Varnish Cache is an open-source HTTP accelerator and reverse caching proxy that caches content from web servers to reduce load times, and supports native TLS termination and Kubernetes deployments.

It uses the VCL configuration language compiled to native C code, serves cached responses in three system calls, provides official container images and a Helm chart for Kubernetes, outputs structured JSON logs, and supports VMOD extension modules.

Popularity

Determined by the number of sites using each technology.

• 🥇 Most popular in the Czech Republic in the Load Balancers category.
• 🥈 Second most popular in the Czech Republic in the Caching category.

• 🥇 Most popular in the United States in the Load Balancers category.
• 🥇 Most popular in the United Kingdom in the Load Balancers category.
• 🥇 Most popular in France in the Load Balancers category.
• 🥇 Most popular in Germany in the Load Balancers category.
• 🥇 Most popular in Denmark in the Load Balancers category.

Top sites

Top-ranked sites that use these technologies.

Compare alternatives

Technologies with similar characteristics.

• Apache Traffic Server vs. Nginx
• Apache Traffic Server vs. Google Cloud Load Balancing
• Apache Traffic Server vs. Envoy
• Apache Traffic Server vs. HAProxy
• Apache Traffic Server vs. Squid

• Varnish vs. Nginx
• Varnish vs. Envoy
• Varnish vs. HAProxy
• Varnish vs. Ngrok
• Varnish vs. Squid

• Apache Traffic Server technology profile
• Apache Software Foundation company profile

• Varnish technology profile