Varnish Enterprise is an enhanced version of Varnish Cache.

Varnish SSL/TLS offers full SSL/TLS support on both the HTTP backend and client side.

High-performance content replicator focused on eliminating cache misses and protecting your backend infrastructure from overload caused by cache misses if a cache fails

Varnish Massive Storage Engine allows your Varnish caching layer to handle multi-terabyte data sets.

Persistence allows your cache to survive when you need to restart Varnish. All objects remain in cache with minimal performance reduction.

Varnish Paywall is a solution, implemented with Varnish Enterprise to control access to website content and require users to pay for premium content.

Varnish Custom Statistics (VCS) captures and provides real-time aggregated statistics on all the traffic that goes through Varnish Cache Plus and Varnish Cache.

Connect to any backend on the fly, including DNS based backends

Content pre-fetch uses an asynchronous operation to fetch the next anticipated object into cache letting you act predictively to prefetch content and keep your cache warm, for high-performance, smooth video on demand (VoD) streaming.

Request mirroring is an asynchronous operation that uses vmod-http in Varnish to mirror all or a percentage of incoming client requests to another web server without waiting for the responses.

Execute ESI includes in parallel, greatly increasing your existing ESI performance. Parallel ESI will upon considering a page for delivery immediately seek out what fragments need to be fetched and fetch them – all at the same time.

JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write and is easy for machines to parse and generate.

Allows for Varnish to act as a file server as well as a means to interact with the file system from VCL.

Edgestash is a modern templating language that dynamically assembles user-customized responses, giving you the lowest possible page load times.

Varnish Enhanced Cache Invalidation records the relationship between web pages and their underlying sources.

With the Akamai Connector for Varnish, DevOps can improve their Akamai-Varnish integration and seamlessly sync the two for enhanced day-to-day productivity.

Varnish Total Encryption makes your cache secure while also preventing any kind of malicious or accidental cache leak caused by vulnerabilities, such as Heartbleed, Cloudbleed, and Meltdown.

The Varnish Web Application Firewall (WAF) lets you inspect your HTTP traffic and detect malicious requests at the edge before they reach your web application.

A streaming regular expression engine which allows Varnish to manipulate and capture response body text in VCL.

Distributed cache invalidation. Broadcasts requests to multiple Varnish caches from a single entry point. The broadcaster consists of a web-server with a REST API which will receive invalidation requests and distribute these requests to all configured caches.

Autoscale Varnish in the cloud or a modern container service.The service streamlines configuration by automatically producing the configuration files. This makes it possible for each node to automatically discover its peers, and keep that knowledge up-to-date over time.

Native TLS support without the use of standalone TLS terminator.

Automatically scales the cache size to have sufficient amounts of memory available.

Displays ongoing, waiting and queued Varnish tasks managed by thread pools workers in the varnishd cache process.

An graphical administration console for managing Varnish clusters and multi-tenant deployments

Optimizes memory consumption when using vcl_pass to serve large objects

Flexible CDN request routing to ensure clients fetch content from the optimal cache node

Sanitization of content negotiation headers such as Accept-Language.

For collecting metrics per tenant, content type and more, for use in dashboards and monitoring

More flexible IP address matching, for example using IP addresses stored in kvstore.

A libadns VCL interface for creating dns_groups and setting up dynamic backends

This VMOD provides utility functions and an object for the VCL data type BLOB, which may contain arbitrary data of any length.

This VMOD gives vcl some access to the requestbody. A common use case is to allow caching of POST requests, where the request body needs to be part of the hash.

Adds end-to-end support for Brotli lossless compression algorithm

Advanced cookie manipulation and filtering capability, for both request and response cookies.

Cookie manipulation in VCL.

Cryptographic functionality to encrypt data at rest in the cache, headers and body.

HTTP communication from VCL.

Varnish Module (vmod) for computing HMAC, message digests and working with base64.

Load balancing between backends based on round robin, fallback, random, hash and sharding.

Realtime templating engine based on Mustache, that allows JSON to be composed into responses.

File system operations allowing Varnish to act as a file server as well as interacting with the file system from VCL. CRUD operations on files, and executing commands – all from VCL.

Brings formatted strings to VCL for easier string building

This Varnish module exports functions to look up GeoIP country codes from the MaxMind database.

Dynamic backends based on DNS.

Varnish Module for manipulation of duplicated HTTP headers, for instance multiple Set-Cookie headers.

Advanced HTTP communication from VCL. This includes asynchronous and synchronous calls, pre-fetch capabilities, request mirroring – all with connection pooling.

Compress JPEGs and PNGs into WebP format and store a compressed copy in the cache. Optionally scale, resize or change the quality of conversion.

Parse JSON strings from headers or body and read the value for specific keys in VCL.

Makes it practical to manipulate JSON Web Tokens in VCL.

High performance internal key value store accessible from VCL, with optional TTLs.

Backend load balancing by the number of connections. Traffic will be directed to the backend with the least number of active connections.

Varnish module to access and interact with memcached servers from VCL.

VMOD to provide helper functionality that is useful when building a VCL based paywall.

Adds flexibility to redirect probes and treat them as HTTP requests in order to route, cache and collapse them

Exposes proxy-protocol-v2 TLV attributes if a connection was made using the PROXY protocol. Can be used to retrieve TLS-related information.

Provides a finer-grained control than regular purging, such as soft purge. It also returns the number of purged objects.

Enables reverse IP DNS resolution and verification, and veribot library for domain-based access controls.

An efficient way to do rewrites based on rules in a separate rules file.

This VMOD will expose varnishstat counters and backend information over HTTP, which makes it possible to get this data by sending an HTTP request to Varnish.

Saintmode lets you deal with a backend that is failing in random ways for specific requests. It maintains a blacklist per backend, marking the backend as sick for specific objects.

Modification of variables on a per session basis. For now only idle timeout can be modified.

Cache partial responses by issuing a range request to the backend, based on the client’s Range header.

A way to do stale-while-revalidate and stale-on-error without restarting, to increase the lifetime of stale objects.

Contains basic functions such as time and duration functions, query sorting and various cast functionality.

Creating synthetic backends that can be used for cache warming or pushing objects into cache.

When running on systems with the necessary kernel support, this VMOD lets Varnish artificially slow down sending of response bodies to requesting clients.

Improved, more dynamic load balancing logic

Making information about the peer process available in VCL (user, group, uid and gid).

Makes it easier to parse, manipulate and rewrite full URIs

Advanced URL manipulation and filtering capability, for both query parameters and the path.

This VMOD implements variable support in VCL. It supports strings, integers and real numbers. There are methods to get and set each data type.

Helper VMOD to support cache replication functionality.

Rate limiting in VCL based on the token bucket algorithm.

Provides a way to trigger corner cases for VTC tests that can be run via varnishtest.

Enables modification and extraction of content in request and response bodies using regular expressions.

Cache invalidation based on surrogate cache keys in Varnish.

Resource optimized cache invalidation based on surrogate cache keys in Varnish, more resource efficient than xkey.