Proxy servers are also used as "web proxies" to filter web page contents. An organization or company may use a proxy server to block offensive web contents from viewed by the users. Considering the growing need within organizations to prevent employees from accessing specific websites, such as facebook.com, proxy servers are being deployed across the computers connected to the intranet. Some web proxies are able to reformat web pages to suit a specific set of audience, or cater certain organizational or personal internet usage purposes. Further, web proxies can be used to prevent the attack of computer viruses and malware, as well as other hostile content transferred across the internet web pages. However, users can also use web proxy servers to access those blocked sites indirectly. These web proxies are built with PHP or CGI to implement the proxying functionality, and provide web access to those sites blocked by corporation and school proxies. Moreover, Internet Service providers (ISPs) may also use proxies to block computer viruses and other offensive contents.
Access to some of UCLA's Web content is restricted solely to UCLA IP addresses because of licensing and/or copyright agreements such as California Digital Library content and UCLA Library electronic journals. To use these services you must access them from a computer with a UCLA IP address. Users who are utilizing other Internet Service Providers (ISP) to remotely access restricted content do not have a UCLA IP address and are therefore denied access, unless a proxy server is used to reach the restricted content.
Proxy servers also contribute to improved web performance since the results of the user requests are saved in cache memory for a set period of time. This is achieved with the help of a caching proxy server, which could save a large amount of time while catering to the requests from a vast user load. A caching proxy server maintains a local copy of frequently requested web content. Hence, it can accelerate service requests by retrieving content from the cache memory, if it had already been requested by another client on the same network. This feature contributes to a significant reduction in upstream bandwidth usage and costs for large organizations with thousands of employees.
In the first case, HTTP, HTTPS and FTP traffic is proxied through the specified proxy server. Other traffic is sent directly. In the latter case the behavior is slightly more subtle: If a proxy server is configured for the HTTP, HTTPS or FTP protocol, the respective traffic is proxied through the specified server. If no such proxy server is specified or traffic uses a different protocol than HTTP, HTTPS or FTP, the fallbackProxy is used. If no fallbackProxy is specified, traffic is sent directly without a proxy server.
Access to some of UCLA's Web content is restricted solely to UCLA IP addresses because of licensing and/or copyright agreements such as California Digital Library content and UCLA Library electronic journals. To use these services you must access them from a computer with a UCLA IP address. Users who are utilizing other Internet Service Providers (ISP) to remotely access restricted content do not have a UCLA IP address and are therefore denied access, unless a proxy server is used to reach the restricted content.
When a proxy server receives a request for an Internet resource (such as a Web page), it looks in its local cache of previously pages. If it finds the page, it returns it to the user without needing to forward the request to the Internet. If the page is not in the cache, the proxy server, acting as a client on behalf of the user, uses one of its own IP addresses to request the page from the server out on the Internet. When the page is returned, the proxy server relates it to the original request and forwards it on to the user.
Open or public proxies are a type of proxy setup on a system that allows users to connect and use the open proxy without providing any authentication. An open proxy can be setup on any computer or network that has opened the necessary ports and setup the necessary proxy software or system to provide proxy access, allowing Internet traffic to pass through the open proxy.
Web proxies are easily found. A quick search provides a list of dozens, each of which function basically the same, although some might include features that others don't have. For example, one web proxy might let you pick the server from which to access websites anonymously, and others might let you disable features like JavaScript and cookies for extra security. A list of top-performing free anonymous web proxies can help you make your decision.

A proxy server is a dedicated computer or a software system running on a computer that acts as an intermediary between an endpoint device, such as a computer, and another server from which a user or client is requesting a service. The proxy server may exist in the same machine as a firewall server or it may be on a separate server, which forwards requests through the firewall.


A proxy server is basically a computer on the internet with its own IP address that your computer knows. When you send a web request, your request goes to the proxy server first. The proxy server then makes your web request on your behalf, collects the response from the web server, and forwards you the web page data so you can see the page in your browser.

Once traffic reaches the proxy machine itself interception is commonly performed with NAT (Network Address Translation). Such setups are invisible to the client browser, but leave the proxy visible to the web server and other devices on the internet side of the proxy. Recent Linux and some BSD releases provide TPROXY (transparent proxy) which performs IP-level (OSI Layer 3) transparent interception and spoofing of outbound traffic, hiding the proxy IP address from other network devices.
Proxies can be installed in order to eavesdrop upon the data-flow between client machines and the web. All content sent or accessed – including passwords submitted and cookies used – can be captured and analyzed by the proxy operator. For this reason, passwords to online services (such as webmail and banking) should always be exchanged over a cryptographically secured connection, such as SSL. By chaining proxies which do not reveal data about the original requester, it is possible to obfuscate activities from the eyes of the user's destination. However, more traces will be left on the intermediate hops, which could be used or offered up to trace the user's activities. If the policies and administrators of these other proxies are unknown, the user may fall victim to a false sense of security just because those details are out of sight and mind. In what is more of an inconvenience than a risk, proxy users may find themselves being blocked from certain Web sites, as numerous forums and Web sites block IP addresses from proxies known to have spammed or trolled the site. Proxy bouncing can be used to maintain privacy.

In here you can see how many proxy servers and of what type are active at any given moment over the past two weeks. To see what each of those types mean, visit the main proxy list page. Keep in mind that many of these proxies may be configured for browser-use only - meaning that they cannot be used from within spam applications, etc. Daily average working proxies for past 7 days Describe "active proxy list" - list of proxies that have either been "alive status" during the last check or whose uptime in the last 24 hours exceeds 10%.
A proxy list is a list of open HTTP/HTTPS/SOCKS proxy servers all on one website. Proxies allow users to make indirect network connections to other computer network services. Proxy lists include the IP addresses of computers hosting open proxy servers, meaning that these proxy servers are available to anyone on the internet. Proxy lists are often organized by the various proxy protocols the servers use. Many proxy lists index Web proxies, which can be used without changing browser settings.
The Web Proxy protects only the app you are using. For instance, if you are using Firefox to browse the net, only the traffic that goes through this browser is protected. Other applications like, for example, Skype or other browsers opened at the same time are still exposed. The VPN connection instead protects all your device. Once you install the software, it will automatically shield any application that goes online. Plus, if you set the VPN on your home router, all the devices that connect to it will benefit from the same protection.
The main concern of using web proxies is that they don’t offer any data protection. Even though using a proxy makes it more difficult for snoopers to obtain your IP address, it still leaves your data vulnerable to hacking, because these services don’t encrypt your Internet traffic. What’s more, free proxy services are also known for injecting spyware or advertisement into websites.

Advertisers use proxy servers for validating, checking and quality assurance of geotargeted ads. A geotargeting ad server checks the request source IP address and uses a geo-IP database to determine the geographic source of requests.[11] Using a proxy server that is physically located inside a specific country or a city gives advertisers the ability to test geotargeted ads.
Since a web proxy is a free service, lots of Internet users tend to use it, putting a heavy load on the server, which may result in a slow connection. Therefore, if you wish to securely access restricted websites and streaming services without sacrificing your connection speeds, you will need a reliable VPN service. NordVPN allows choosing from 5000 ultra fast servers worldwide, so you can enjoy any content you want with no interruptions, cyber threats or data leakage. 

A web proxy is a web-based proxy service that works within your own web browser and requires no additional software to be installed on your computer. The greatest advantage of using a web proxy is its portability and ease of use since it can be accessed from anywhere in the world without making any complicated changes to your computer's settings or following a list of steps.

Chrome No support No Edge No support No Firefox No support 37 — 47 IE No support No Opera No support No Safari No support No WebView Android No support No Chrome Android No support No Edge Mobile No support No Firefox Android No support 37 — 47 Opera Android No support No Safari iOS No support No Samsung Internet Android No support No nodejs No support No
We handpick servers that live up to our high standards of security and privacy. They're access controlled, and we are the only ones that operate them — no one else. They do not store IP addresses, nor do they store logs. Each server supports all popular protocols, including: PPTP, L2TP, IPsec (IKEv1 and IKEv2), OpenVPN, SoftEther, SSTP and SOCKS. With the very best server locations and low ping times, the internet is yours for the taking — wherever you might be.
A translation proxy is a proxy server that is used to localize a website experience for different markets. Traffic from global audiences is routed through the translation proxy to the source website. As visitors browse the proxied site, requests go back to the source site where pages are rendered. Original language content in the response is replaced by translated content as it passes back through the proxy. The translations used in a translation proxy can be either machine translation, human translation, or a combination of machine and human translation. Different translation proxy implementations have different capabilities. Some allow further customization of the source site for local audiences such as excluding source content or substituting source content with original local content.
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