Varnish

Varnish is used by 1.37% of sites

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Varnish is an open-source web application accelerator and caching HTTP reverse proxy. It is designed to improve the performance and scalability of websites by caching content and serving it directly from memory, reducing the load on the backend servers.

Here are the key features and functions of Varnish:

HTTP Reverse Proxy: Varnish acts as a reverse proxy server, sitting between the client and the backend web server. When a client requests content, Varnish intercepts the request and forwards it to the backend server on behalf of the client. The response from the server is then cached by Varnish and subsequent requests for the same content can be served directly from the cache.

Content Caching: Varnish caches the content of web pages, images, and other static or dynamic resources in memory. By serving content from the cache, Varnish reduces the response time and improves the overall performance of the website. Caching is especially effective for static content that doesn't change frequently.

HTTP Acceleration: Varnish optimizes the delivery of web content by implementing various techniques, such as request and response filtering, compression, and pipelining. It minimizes network latency, reduces server load, and enhances the user experience by delivering content faster.

Edge Side Includes (ESI): Varnish supports Edge Side Includes, which allows dynamic content to be included within cached pages. This enables selective caching of different parts of a webpage and the ability to update dynamic content within the cached page without invalidating the entire cache.

Cache Invalidation: Varnish provides mechanisms to invalidate or refresh the cache when the underlying content changes. This ensures that users receive the most up-to-date content by bypassing the cache for modified resources.

Load Balancing: Varnish can be used as a load balancer, distributing client requests across multiple backend servers based on various algorithms such as round-robin, least connections, or client IP. This helps distribute the load evenly among backend servers, improving scalability and reliability.

VCL (Varnish Configuration Language): Varnish is highly customizable through its configuration language called VCL. VCL allows developers to define custom caching rules, handle complex request and response scenarios, and implement advanced caching strategies tailored to specific application requirements.

Logging and Monitoring: Varnish provides logging facilities to track and analyze requests, cache hits, cache misses, and other performance metrics. It also integrates with monitoring tools and metrics systems to monitor the health and performance of the caching infrastructure.

Varnish is widely used by high-traffic websites, content delivery networks (CDNs), and web application providers to improve the scalability and speed of their services. By caching content and serving it directly from memory, Varnish reduces the response time, lowers server load, and enhances the overall user experience.

Top Websites using Varnish

: Bounce ratePages / VisitVisit duration
801cyclingweekly.co.uk Cycling Weekly | Cycling News, Bike Reviews and Buying Advice Online companion to print magazine from North America offering an inside look at European cycling from the Spring Classics, to the Giro d'Italia, to the Tour de France. Subscription information, current and past issue overviews, and contacts. Daily cycling news and cycle equipment reviews from Cycling Weekly, the UK's best-selling cycling magazine.: n/a 1.86 n/a
802iolo.com iolo.com Fix and speed up your PC with the world's best-selling PC tune-up utility software. Automatically repair system slowdowns, crashes, and freezes.: n/a 2.07 n/a
803hh3dhay.com HH3DHAY.COM – Xem Thuyết minh Hoạt hình 3D Trung Quốc: 25.46 6.33 28:01
804libretexts.org LibreTexts - Free The Textbook LibreTexts is developing the next generation of open-access texts. Open. Free. Accessible to all.: n/a 1.46 n/a
805four-pins.com Four Pins | Style, Gear, Life, Places, Features Style, Gear, Life, Places, Features: n/a 5.20 n/a
806hatenablog.com はてなブログ | 無料ブログを作成しよう はてなブログは、無料でしっかり書けるブログサービスです。日々の生活から感じたこと、考えたことを書き残しましょう。: 72.00 2.33 02:13
807adelaide.edu.au The University of Adelaide - Australia Adelaide is a top university in South Australia and a member of the Group of Eight - Australia's leading universities - Australia university ranking list for research. Stu at the University of Adelaide means being part of a rich tradition of excellence in education and research, with world-cl academics and a vibrant student life. Our graduates make an impact on the world. Life Impact.: n/a 0.00 n/a
808eatlocalgrown.com Find Locally Grown Food Find, rate and share locally grown food. Local farms, farmers markets, restaurants and more. Support food that is locally grown in YOUR community!: n/a 1.23 n/a
809alcaldiadebaruta.gob.ve: n/a 5.34 n/a
810nyp.org Just a moment... NewYork-Presbyterian, a leading health system dedicated to groundbreaking research and innovative care, serves patients in the New York City area and beyond.: 47.57 3.32 02:35
811tra***as.com
Tra***as | The Fastest Name in Radio Control
Tra***as, The Fastest Name in Radio Control is the number-one selling name in Ready-To-Race nitro and electric radio controlled vehicles.: n/a 4.09 n/a
812dev-mouridebayeaccessories.pantheonsite.io Mouridebayeaccessories: 42.62 7.09 22:51
813poewiki.net The Path of Exile Wiki: 46.24 3.16 04:38
814renault.com Renault Group, constructeur automobile - Renault Group Bienvenue sur le site officiel de Renault Group, le groupe automobile de future génération.: 23.18 8.55 07:53
815smartlocating.com smartlocating.com SMART is the premier provider of apartment data and market research information to the multi-family housing industry.: n/a 18.10 n/a
816frtya.com 403 Forbidden: 100.00 1.17 n/a
817shuyuseo.com 长沙SEO树屿 | 专注SEO与建站技术服务 树屿,专业从事SEO技术和建站的服务,本站提供免费SEO技术教程以及织梦(dedecms)与Wordpress零基础优化建站教程、专业SEO工具以及技术问题解答-SEO不是技术,是艺术: n/a 37.00 n/a
818e-geeks.in: n/a 15.00 n/a
819aus.com Allied Universal | Leading Security Services & Solutions Worldwide Allied Universal® is one of the leading security companies that provides innovative security services and solutions to protect people, businesses, and communities worldwide.: 30.45 6.31 07:41
820bestgamenet.ir: n/a 42.00 n/a
821lexus.com Lexus | Experience Amazing The official site of Lexus USA. Welcome to Lexus; official site. Explore the line of Lexus luxury sedans, SUVs, hybrids, performance cars and accessories, or find a Lexus dealer near you.: 54.53 5.30 06:32
822square.online: 20.34 14.00 10:15
823haaretz.com
Haaretz | Israel News, the Middle East and the Jewish World - Haaretz.com
Haaretz.com - Breaking News, ***ysis and Opinion From Israel, the Middle East and the Jewish World - Haaretz: 54.63 2.65 04:20
824hna.de HNA.de | News aus Kassel und Hessen sowie die besten Tipps für Verbraucher Aktuelle Nachrichten aus Kassel und Nordhessen – von Verbraucher-Tipps über Wirtschaft zu Politik und Sport.: 25.90 2.69 01:12
825coachhire.com Hire coaches and minibuses | Coach hire with driver | Coach companies |Coach Hire UK Coach Hire is the leading provider of coach hire services in the UK. We provide 8 to 72-seat coaches at cost-effective prices and exceptional service throughout the UK.: n/a 62.00 n/a
826xiefu.cn: n/a 5.80 n/a
827basketballads.com: n/a 10.50 n/a
828advrider.com Adventure Rider - Ride the World. Adventure Rider is the center of the adventure motorcycle riding world. Visit ADVrider.com for the latest news, reviews and adventure community discussions.: 48.92 4.57 03:35
829case.edu Case Western Reserve University: One of the nation's best Explore Case Western Reserve University: one of the top-ranked schools in Ohio and one of the best research universities in the U.S. Located in Cleveland, Ohio.: 33.28 6.03 07:40
830bedbathandbeyond.ca Bedding, Bath Towels, Cookware, Fine China, Wedding & Gift Registry - Bed Bath & Beyond Shop Bed Bath & Beyond for bedding, bath towels, kitchen electrics, cookware, cutlery, coffee makers & K-Cup Packs, window treatments, storage items, gifts and much more! We also offer Bridal & Gift Registry for your big event.: n/a 3.82 n/a
831dscuento.com.mx: n/a 10.80 n/a
832rice.edu Rice University Rice University is a comprehensive research university in Houston, Texas. Rice produces Houston’s next generation of leaders and advances tomorrow’s thinking.: 48.71 3.90 13:26
833ucas.com Choose your future | UCAS Central organisation through which applications are processed for entry to higher education. Includes information and services for prospective students and higher education professionals. UCAS connects people to University, post Uni studies including teacher training, apprenticeships & internships. Find all the information for your next step.: 39.62 5.87 04:27
834timeshighereducation.co.uk Academic & University News | Times Higher Education (THE) Provides global higher education coverage. Find world university rankings, news, opinions, features and book reviews.: n/a 2.46 n/a
835ted.com TED: Ideas change everything Dan Ariely questions the forces that influence human behavior and the irrational ways we often behave.: 48.99 3.12 03:00
836belnovosti.by Белновости: Главные новости Беларуси и мира. Новости сегодня Белорусская служба новостей: политика, общество, экономика, культура, технологии, спорт в ежедневных обзорах. Все последние главные новости. Срочные новости онлайн. Новости сегодня шоу-бизнеса. Гороскоп на сегодня. Происшествия, ЧП, ДТП. Прогноз погоды. Важные события в мире. Курсы валют.: 64.62 2.00 07:26
837uottawa.ca Université d'Ottawa | University of Ottawa Ontario based university offering undergraduate, graduate and professional programs. Includes details on academics, admissions, organizations, news, and alumni statistics.: 42.88 5.20 05:20
838activebeat.co ActiveBeat | Your Daily Dose of Health Headlines ActiveBeat | Your Daily Dose of Health Headlines: n/a 5.30 n/a
839swgoh.gg Just a moment... Star Wars Galaxy of Heroes Database - Characters, Shards, Battles and Squad Builder!: 31.49 7.22 05:32
840lanecc.edu Lane Community College Lane Community College: n/a 11.60 n/a
841prepaid-tarife-vergleichen.de Prepaid Vergleich zu SIM Karten Testsieger & Vergleiche Verbraucherportal für Prepaid Tarife. Wertvollen Tipps zu Handytarifen mit Bewertungen der Prepaid Testsieger im Prepaid Vergleich!: n/a 39.00 n/a
842assembly.com Built together · Assembly A new way for people around the world to collectively build, launch, and grow startups. We call it crowd-founding.: n/a 5.10 n/a
843blameitonthevoices.com Blame It On The Voices Blame It On The Voices: n/a 1.56 n/a
844parents.com Parents: Trusted Parenting Information for Raising the Future Parents empowers today's families with trustworthy information from experts, empathetic advice, and a supportive community.: 68.85 1.70 01:11
845hoopshype.com NBA News, Rumors & Rankings | HoopsHype Get the latest NBA news, trade rumors, rankings, salaries, and player updates on HoopsHype.: 58.64 1.95 01:53
846strauss.com STRAUSS High Performance Workwear | Strauss.com Strauss Arbeitskleidung und Sicherheitsschuhe gemacht für Meister. Die Lieblingsmarke für Handwerk und Landwirtschaft ► Gleich kaufen!: 31.85 10.20 05:24
847newsnationnow.com Access to this page has been denied px-captcha: 55.82 1.95 01:48
848soonapp.io Soon | Workforce Management Software Schedule your customer support team. Manage leave and daily activities. Increase your employee experience with better collaboration.: 41.07 1.96 13:34
849bold.dk Fodbold, nyheder, livescore, resultater og tabeller | Bold Fodboldnyheder, livescore, resultater, stillinger og tabeller - Bold har alt til fans af fodbold, som vil være opdateret på det seneste i fodboldens verden: 32.76 4.20 05:11
850nextplay.com nextplay.com Over 1000 of the best FUN games on the internet at NextPlay.com, including free online games, racing games, and flash games!: n/a 3.78 n/a

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