What is Varnish?

Varnish Cache is a web application accelerator also known as a caching HTTP reverse proxy. You install it in front of any server that speaks HTTP and configure it to cache the contents. Varnish Cache is really, really fast. It typically speeds up delivery with a factor of 300 - 1000x, depending on your architecture.
Varnish is a tool in the Web Cache category of a tech stack.
Varnish is an open source tool with 908 GitHub stars and 216 GitHub forks. Here’s a link to Varnish's open source repository on GitHub

Who uses Varnish?

Companies
1004 companies use Varnish in their tech stacks, including Pinterest, 9GAG, and Hootsuite.

Developers
137 developers use Varnish.

Varnish Integrations

Datadog, Section, Server Density, SignalFx, and Netuitive are some of the popular tools that integrate with Varnish. Here's a list of all 5 tools that integrate with Varnish.

Why developers like Varnish?

Here’s a list of reasons why companies and developers use Varnish
Varnish Reviews

Here are some stack decisions, common use cases and reviews by companies and developers who chose Varnish in their tech stack.

Tom Klein
Tom Klein
CEO at Gentlent · | 9 upvotes · 7.7K views
atGentlent
Visual Studio Code
npm
Varnish
HAProxy
Kubernetes
Docker
GitLab
GitHub
Git

We're using Git through GitHub for public repositories and GitLab for our private repositories due to its easy to use features. Docker and Kubernetes are a must have for our highly scalable infrastructure complimented by HAProxy with Varnish in front of it. We are using a lot of npm and Visual Studio Code in our development sessions.

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John Egan
John Egan
at Pinterest · | 1 upvotes · 6.3K views
atPinterest
Varnish

When you visit the site, you talk to a load balancer which chooses a varnish front-end which in turn talks to our web front-ends which used to run nine python processes. Each of these processes are serving the exact same version on any given web front-end. Varnish

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John Egan
John Egan
at Pinterest · | 1 upvotes · 823 views
atPinterest
Varnish

When you visit the site, you talk to a load balancer which chooses a varnish front-end which in turn talks to our web front-ends which used to run nine python processes. Each of these processes are serving the exact same version on any given web front-end. Varnish

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Simone Marcato
Simone Marcato
Partner & CTO at Hevelop · | 1 upvotes · 662 views
atHevelop
Varnish

Varnish is the http cache proxy we use to achieve maximum performance on high traffic e-commerce. Varnish

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Poogles
Poogles
| 1 upvotes · 659 views
atThe Independent
Varnish

Varnish sits as a secondary cache layer behind Akamai. Two servers operate in a Primary/Secondary configuration with failover managed by HAProxy. Requests peak at around 10k/s. Varnish

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Scott Prue
Scott Prue
at Kyper · | 1 upvotes · 655 views
atPruvit
Varnish

Used as part of site hosting (Firebase HTTP Hosting manages implementation) Varnish

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Varnish Alternatives & Comparisons

What are some alternatives to Varnish?
nginx
nginx [engine x] is an HTTP and reverse proxy server, as well as a mail proxy server, written by Igor Sysoev. According to Netcraft nginx served or proxied 30.46% of the top million busiest sites in Jan 2018.
Redis
Redis is an open source, BSD licensed, advanced key-value store. It is often referred to as a data structure server since keys can contain strings, hashes, lists, sets and sorted sets.
Section
Edge Compute Platform gives Dev and Ops engineers the access and control they need to run compute workloads on a distributed edge.
Squid
Squid reduces bandwidth and improves response times by caching and reusing frequently-requested web pages. Squid has extensive access controls and makes a great server accelerator. It runs on most available operating systems, including Windows and is licensed under the GNU GPL.
Nuster
nuster is a high performance HTTP proxy cache server and RESTful NoSQL cache server based on HAProxy.
See all alternatives

Varnish's Stats