update : 23/12/2020


4.2 4.3 4.3 5
Smile Visitors Global
100%   Popularity on the site
68%   Popularity in the section
Studied version : 3.0.3 Website : http://www.varnish-cache.org - Google Pagerank : 7 Distributed by : Enterprise (Varnish Software) Licence : License1 Technology : C/C++ Year of creation : 2006

Varnish is a high performance HTTP cache. The first stable version of Varnish was launched in 2006 for the Norwegian newspaper Verdens Gang. The product’s architect is Poul-Henning Kamp of Denmark.

Used to improve the performance of high traffic websites, Varnish also includes load distribution functionalities and can be used to test the availability of servers producing web content. Varnish is used by Facebook, for example. Varnish stores a portion of its data in virtual memory. The tool is configured via VCL (Varnish Configuration Language) files; this enables the definition of extremely detailed management rules. Lastly, Varnish partially supports ESI (Edge Side Includes) tags.

Varnish is distributed under the BSD License.


Smile Visitors (3 Opinion)
Global rating is an arithmetic average of various criteria

Smile rating

4.2 5
write a review

Users opinions See all opinions (3)

FR gabriel janez
Rate this solution the 01/10/2014

“ Mise en place sur plusieurs site e commerce tournant sous Magento. La performance du temps de réponse à été clairement attendu. Avant 1.2s je suis passer à 33ms. ”

FR Thomas Lecarpentier
Rate this solution the 06/08/2013

“ Après l'avoir mis en place sur plusieurs projets, c'est l'outil idéal pour accélérer un site. L'installation sur une plateforme Debian/linux est ultra simple. La configuration fournie par défaut est "ready to run" pour la majorité des site de contenus. Attention cependant aux site à forte personnalisation qui vont demander une configuration plus fine. Heureusement la syntaxe de configuration permet de gérer finement ce genre de problèmes. ”

3 persons have the same opinion
Rate this solution the 01/08/2013

“ Solution très puissante qui permet de bâtir des plateformes hautes performances dont celle de Facebook. Trouver des ressources est de plus en plus facile mais cela nécessite une grosse expertise. ”


Ohloh users rating 4.52 (21 votes)
lines of code 71105 lines
(for the 12 last months)
Programming Languages C, 6 Other
Tags highavailability networking reverseproxy high_performance cache www web loadbalancing proxy linux accelerator freebsd http esi varnish
Download url https://www.varnish-cache.org/releases
Ohloh page https://www.openhub.net/p/varnish