Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. It 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. Cached content means data is served locally and users will see this through faster download speeds with frequently-used content.

Squid - HTTP reverse proxy optimizes web delivery

mitmproxy is an interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers. mitmproxy is an interactive, SSL-capable intercepting proxy with a console interface. mitmdump is the command-line version of mitmproxy. Think tcpdump for HTTP. mitmweb is a web-based interface for mitmproxy. 

mitmproxy -  Intercept HTTP traffic for penetration testing

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 - Web Application Accelerator.

OpenResty is a full-fledged web platform that integrates the standard Nginx core, LuaJIT, many carefully written Lua libraries, lots of high quality 3rd-party Nginx modules, and most of their external dependencies. It is designed to help developers easily build scalable web applications, web services, and dynamic web gateways.
 
By taking advantage of various well-designed Nginx modules (most of which are developed by the OpenResty team themselves), OpenResty effectively turns the nginx server into a powerful web app server, in which the web developers can use the Lua programming language to script various existing nginx C modules and Lua modules and construct extremely high-performance web applications that are capable to handle 10K ~ 1000K+ connections in a single box.

OpenResty is a full-fledged web platform that integrates the standard Nginx core, LuaJIT, many carefully written Lua libraries, lots of high quality 3rd-party Nginx modules, and most of their external dependencies. It is designed to help developers easily build scalable web applications, web services, and dynamic web gateways.

OpenResty - Turning Nginx into a Full-Fledged Scriptable Web Platform

As on the ground microservice practitioners quickly realize, the majority of operational problems that arise when moving to a distributed architecture are ultimately grounded in two areas: networking and observability. It is simply an orders of magnitude larger problem to network and debug a set of intertwined distributed services versus a single monolithic application.
 
Originally built at Lyft, Envoy is a high performance C++ distributed proxy designed for single services and applications, as well as a communication bus and “universal data plane” designed for large microservice “service mesh” architectures. Built on the learnings of solutions such as NGINX, HAProxy, hardware load balancers, and cloud load balancers, Envoy runs alongside every application and abstracts the network by providing common features in a platform-agnostic manner. When all service traffic in an infrastructure flows via an Envoy mesh, it becomes easy to visualize problem areas via consistent observability, tune overall performance, and add substrate features in a single place.
 
Envoy is hosted by the Cloud Native Computing Foundation (CNCF). If you are a company that wants to help shape the evolution of technologies that are container-packaged, dynamically-scheduled and microservices-oriented, consider joining the CNCF.

As on the ground microservice practitioners quickly realize, the majority of operational problems that arise when moving to a distributed architecture are ultimately grounded in two areas: networking and observability. It is simply an orders of magnitude larger problem to network and debug a set of intertwined distributed services versus a single monolithic application.

Envoy - C++ front/service proxy

Nginx [engine x] is an HTTP and reverse proxy server, as well as a mail proxy server, written by Igor Sysoev. It supports accelerated reverse proxying with caching, simple load balancing and fault tolerance, SSL and TLS SNI support, Name-based and IP-based virtual servers and lot more.

Nginx - HTTP and reverse proxy server

Ngnix Proxy Manager is a Docker container for managing Nginx proxy hosts with a simple, powerful interface. This project comes as a pre-built docker image that enables you to easily forward to your websites running at home or otherwise, including free SSL, without having to know too much about Nginx or Letsencrypt. It easily create forwarding domains, redirections, streams and 404 hosts without knowing anything about Nginx. It provides access Lists and basic HTTP Authentication for your hosts, User management, permissions and audit log.

Ngnix Proxy Manager -  Docker container for managing Nginx proxy hosts with a simple, powerful interface

A reverse proxy and static file server that provides authentication using Providers (Google, GitHub, and others) to validate accounts by email, domain or group.



Oauth2 Proxy - A reverse proxy that provides authentication with Google, Azure, OpenID Connect and many more identity providers

Linkerd is a transparent service mesh, designed to make modern applications safe and sane by transparently adding service discovery, load balancing, failure handling, instrumentation, and routing to all inter-service communication.linkerd (pronouned "linker-DEE") acts as a transparent HTTP/gRPC/thrift/etc proxy, and can usually be dropped into existing applications with a minimum of configuration, regardless of what language they're written in. It works with many common protocols and service discovery backends, including scheduled environments like Mesos and Kubernetes.

linkerd - Resilient service mesh for cloud native apps

Reborn is a proxy based high performance Redis cluster solution written in Go/C, an alternative to Redis. Reborn supports multiple stateless proxy with multiple redis instances. Reborn is engineered to elastically scale, Easily add or remove redis or proxy instances on-demand/dynamically.

Reborn - yet another fast distributed solution for Redis

Html-Speed is a reverse proxy, It is used for accelerating performance of websites by
improving page load speed and reducing load on webservers. This is achieved by applying front-end optimizations to both static and dynamic content and by optimizing the caching of resources.

HtmlSpeed - Frontend HTML Accelarator for Websites

Zuul is an edge service that provides dynamic routing, monitoring, resiliency, security, and more. Zuul is the front door for all requests from devices and web sites to the backend of the Netflix streaming application. As an edge service application, Zuul is built to enable dynamic routing, monitoring, resiliency and security. It also has the ability to route requests to multiple Amazon Auto Scaling Groups as appropriate.

Zuul - Gateway service that provides dynamic routing, monitoring, resiliency, security, and more

frp is a fast reverse proxy to help you expose a local server behind a NAT or firewall to the internet. Now, it supports tcp, udp, http and https protocol when requests can be forwarded by domains to backward web services. Expose any http and https service behind a NAT or firewall to the internet by a server with public IP address(Name-based Virtual Host Support). Expose any tcp or udp service behind a NAT or firewall to the internet by a server with public IP address.

frp - A fast reverse proxy to help you expose a local server behind a NAT or firewall to the internet

node-http-proxy is an HTTP programmable proxying library that supports websockets. It is suitable for implementing components such as reverse proxies and load balancers. When a request is proxied it follows two different pipelines, The first pipeline (incoming) is responsible for the creation and manipulation of the stream that connects your client to the target. The second pipeline (outgoing) is responsible for the creation and manipulation of the stream that, from your target, returns data to the client.

node-http-proxy - A full-featured http proxy for NodeJS

Nuster is a simple yet powerful web caching proxy server based on HAProxy. It is 100% compatible with HAProxy, and takes full advantage of the ACL functionality of HAProxy to provide fine-grained caching policy based on the content of request, response or server status. Nuster is very fast, some test shows nuster is almost three times faster than nginx when both using single core, and nearly two times faster than nginx and three times faster than varnish when using all cores.
<ul>
<li>All features of HAProxy are inherited, 100% compatible with HAProxy</li>
<li>Powerful dynamic cache ability
<ul>
<li>Based on HTTP method, URI, path, query, header, cookies, etc</li>
<li>Based on HTTP request or response contents, etc</li>
<li>Based on environment variables, server state, etc</li>
<li>Based on SSL version, SNI, etc</li>
<li>Based on connection rate, number, byte, etc</li>
</ul>
</li>
<li>Extremely fast</li>
<li>Cache purging</li>
<li>HTTPS supports on both frontend and backend</li>
<li>HTTP compression</li>
<li>HTTP rewriting and redirection</li>
</ul>

Nuster is a simple yet powerful web caching proxy server based on HAProxy. It is 100% compatible with HAProxy, and takes full advantage of the ACL functionality of HAProxy to provide fine-grained caching policy based on the content of request, response or server status. Nuster is very fast, some test shows nuster is almost three times faster than nginx when both using single core, and nearly two times faster than nginx and three times faster than varnish when using all cores.

nuster - A web caching proxy server based on HAProxy

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