What Are Proxies? (Everything To Know About Proxy Servers)
If youâre looking to compile lots of data from the web to inform and boost your business, proxies are the essential tool to help you do that without the fear of being blocked or banned.
This complete guide to proxy servers will answer the questions: what is a proxy server, how do they work, what are they used for, and how they can benefit your business. Weâll also go into detail about the best use cases of proxies and answer some frequently asked questions about using proxies for web scraping. If youâre familiar with some of the basics, you can use the table of contents to skip around to the relevant sections.
What Is a Proxy Server?
A proxy server is an intermediary between you and the website youâre visiting. When you arenât using a proxy server, a website can identify you by your internet protocol (IP) address. Your IP address tells the website where youâre located. Itâs similar to your home address, although not nearly as specific. Like your home address, your IP address is tied to the internet connection in a particular location. Just as the physical address of your home is different from the physical address at the coffee shop where you like to work, the IP address is different â even though you may be working on the same laptop in both places.
When you use a proxy, you add an extra layer between your device and a website. You connect to the proxy server first. The proxy server hides your actual IP address and displays a different one (the proxy IP address) to the website. The website then sends its response to the proxy server, which sends it back to you.
Although theyâre often used interchangeably, the terms âproxy serverâ and âproxy IP addressâ have different meanings.
- A proxy server is the machine that houses proxy IP addresses.
- A proxy IP address is the individual IP address thatâs used to conceal your actual IP address.
What Is a Proxy Server Used for?
While it might sound questionable to give out an IP address thatâs different from your own, itâs a good idea for many reasons. From privacy concerns to software testing, proxies give you more control over how you use the internet and how much information the websites you visit can collect about you.
Here are some of the most popular use cases for proxies:
Privacy
If youâve ever Googled something and then had related ads pop up for days afterward (and who hasnât), you know that everything youâre doing on the internet is tracked. Although itâs not the only information thatâs recorded off your device, your IP address is the primary way that websites track you. Using a proxy will prevent a lot of tracking activity and provide more privacy protection.
Security
Because a proxy server is an extra buffer that encrypts your data before passing it along to a web server, it can provide protection for your sensitive data and help keep you safe from malicious actors. If a hacker tries to access your information, theyâll have to go through the proxy server first, making it harder for them to access the server where your data is actually stored.
However, this benefit depends on the proxy server you choose. Itâs essential to make sure you trust your proxy provider because using the wrong proxy server can have the opposite effect and compromise your security.
Geolocation
Proxies can give you access to content that is blocked in your location by making it appear that youâre located in a different area. You might want to do this if youâre traveling but still want to access the internet from your home country or if there is censorship imposed by a local government. This can also be useful for more mundane tasks, such as testing how your software or content appears to someone in a different location.
Speed
If youâre looking for faster speeds, proxies can help in several ways. For gamers engaged in massive multiplayer online role-playing games (MMORPGs), seconds can mean the difference between victory and defeat. Using a proxy located near the gameâs server allows you to access a faster connection.
This also works for other types of servers and is great for any use when speed is a top factor for your internet needs.
Compiling data
Web scraping is one of the most popular business use cases for proxies. Weâll cover it in more detail below, but briefly, web scraping is the process of using a bot to collect publicly available data from websites for analysis. The web scraping process can be complicated and you may run into hurdles, such as being blocked from the website youâre trying to scrape. Proxies help you avoid bans when youâre scraping by making your botâs activity appear more human.
Shopping
Proxies can be used with software to monitor websites that offer limited editions or timed sales. If youâre waiting for something to go on sale thatâs likely to sell out quickly, you can use a bot to repeatedly refresh the site and automatically purchase when it becomes available. Because the bot may get banned for often making the same request, a proxy server allows you to switch IP addresses with every request. This makes it appear that each request is coming from a different user.
Web Scraping With Proxies
Web scraping is the most popular use case for proxies. As mentioned above, web scraping involves using a program called a bot to extract publicly available data from a website and export it to a readable format for analysis. The possible use cases for web scraping are almost endless. Some of the most common uses are:
Price comparison
Whether youâre a retailer checking out your competitorâs prices or a manufacturer trying to determine the best price for a component, understanding market prices is essential when youâre in business.
Itâs not just about a race to the bottom, however. Analyzing price trends puts you in the driverâs seat when it comes to setting a price strategy. While long-term price trend analysis reports can be valuable, you donât have to wait for the big data analysis firms to put together a summary. With web scraping, you can collect your own data and set your strategy based on up-to-the-minute information â rather than stale data that may be months or years old.
Lead generation
According to research done by RAIN Group, it takes an average of eight exposures to make a sale. However, selling to the right audience is much easier. By scraping websites and social media platforms where your ideal customer is likely to be, you can generate warm leads that have already expressed interest in your product or service.
Brand monitoring
Your reputation is your brandâs most valuable asset. Staying on top of your brand mentions helps you ensure your reputation is in top standing with consumers. Brand monitoring is a powerful part of your marketing strategy. Understanding how your customers feel about your brand and your offerings lets you make minor corrections before your company starts heading in a direction you didnât want to go.
You can use web scraping to monitor your brand and mentions of your brand across social media platforms, review sites, blogs, and forums.
Brand monitoring also allows you to shine when it comes to customer service. In the current âalways-onâ economy, customers expect brands to respond to complaints or questions almost immediately, regardless of where they are. By responding to your customers quickly, you can turn a potential critic into a brand ambassador.
Marketing
Effective marketing relies on understanding your customers and speaking to them in a language that resonates with them. Marketing research gathered from web scraping is perfectly tailored to your customers and your business. Instead of following the latest marketing strategy devised by marketers who may not even work in your field, youâll have data that is hyper-specific to your business. Data analysis gives you the insights to appeal to your customers, not just â35-year-old suburban moms.â
Product development
Just as web scraping allows you to understand your customers and communicate with them, it also allows you to find out exactly what they want. Why spend a lot of money designing a product and then even more convincing people to buy it when you can just create what they want? If you scrape keywords and reviews related to your products and industry, you can discover exactly what people want. If youâre analyzing reviews and you keep seeing the same complaint, your product design team can use a built-in audience to develop a product people want.
Market analysis
Regardless of what industry youâre in, you can benefit from analyzing the market with web scraping. A market overview will show you if a geographic area is under or over served by your type of business. Then you can do a competitive analysis to determine the rental market before you invest.
For example, suppose youâre looking at opening a business that requires employees with a specific skill set. In that case, web scraping will let you perform a feasibility study to see if thereâs enough qualified local talent.
Machine learning
If youâre building software that uses machine learning, youâre going to need a lot of data. You can design a web scraping application to find the type of data you need. Not only is this cheaper than buying data but itâs also more relevant and current.
User testing
You can use web scraping to perform front-end user testing to monitor your softwareâs performance across different variables.
Content aggregation
The most well-known examples of content aggregation are travel sites that compare airline tickets or hotel prices. However, content aggregation is helpful in other fields as well. If you need to stay up-to-date on a specific topic, you can use a web scraper to collect the data from various sources in one place. Content aggregation is also an easy way to feed the content marketing machine.
Customer sentiment
Sentiment analysis is the process of gathering data about how your customers feel about various aspects of your business. It shows you the emotion underlying your customersâ reviews. Using this data, you can analyze whatâs working and whatâs not in your business. Then, youâll be able to decide on a strategy going forward thatâs backed by data.
How Does a Proxy Service Work?
Proxies use a server to process web traffic.
- You communicate directly with the proxy server, which encrypts your information.
- The proxy disguises your IP address by displaying another, and then sends it on.
- The website sends its response back to the proxy, which sends it to you.
The server youâre targeting can only see and communicate with the proxy. All proxies provide this type of go-between service, but there are a variety of different types of proxy servers.
Types of Proxies
There are a lot of different terms that are used to discuss proxies. Proxies can be defined in several ways, and most fit into more than one category type. Some of the proxies listed below are obscure or highly specialized, but since this is a complete guide, weâll define them all.
Residential proxies
Residential proxies originate with a physical address. Internet service providers issue them to regular users. This is the type of IP address that you likely have at home. Residential proxies look and perform exactly like ordinary IP addresses because they are. This makes them very valuable for web scraping because a residential proxy address looks like a human user rather than a robot.
Residential proxies are more difficult to ethically source than most other types of proxies, so theyâre more expensive. For web scraping, however, they offer unparalleled authenticity and security â as long as theyâre obtained from an ethical provider. Residential proxies are the gold standard for enterprise use cases such as web scraping as part of an overall corporate data strategy. When obtained ethically, the proxy provider pays the person who holds the real IP address to use it as part of the service.
Rayobyte leads the industry in providing high-quality, ethically sourced rotating residential proxies. There is simply no better option for enterprise web scraping. Our unmatched commitment to ethics, world-class technical support, and personal partnership with you all help you achieve your scraping goals with the highest level of ban protection. When you partner with us, you can focus on reaching your goals quickly and efficiently instead of dealing with downtime and unnecessary blocks and bans.
Data center proxies
These proxies originate at data centers instead of ISPs (internet service providers). Many of the proxies listed below are also types of data center proxies, and theyâre the most common type of proxy. Itâs easy for websites to detect the origin of data center proxies. This makes them more likely to get banned when used for web scraping. Some websites will ban entire subnets if they detect bot-like activity from a data center IP address. So, if you use one, itâs essential to make sure your provider has a lot of subnet diversity. Some websites ban all traffic from data centers. If you know you want to scrape a particular website, itâs worth investigating their policies before you decide what type of proxy youâll need.
Data center proxies are often faster than residential proxies and are plentiful. A data center can generate an enormous number of proxy IP addresses, which is one reason theyâre cheaper than residential proxies.
With over 300,000 IP addresses on 20,000 unique C subnets spread across 9 ASNs in 29 different countries, Rayobyte has the volume and diversity of data center proxies you need for your project. Our robust data center infrastructure can handle 25 petabytes per month, allowing for billions of scrapes. We have plans for everyone and their unique data gathering needs, from individuals to enterprises. Contact us today, and weâll work with you to find the perfect solution for your use case.
Mobile proxies
Mobile proxies may also be called 3G, 4G, or 5G proxies. These are all proxies that are routed through a telecom provider. As with residential proxies, mobile proxies are real IP addresses issued by a cellular network that also acts as an ISP. They also appear authentic to the websites you visit.
Shared proxies
Shared proxies are used by multiple users at once. This often results in poor performance since they get bogged down by lots of traffic. Proxies that many people use are also prone to the âbad neighborâ effect â if someone is using the same IP address as you and they get banned from a website for bad behavior, then you are banned as well. Sharing proxies also opens you up to security risks such as hacking. Shared proxies are generally cheaper, but are especially risky for businesses because of data protection regulations and the dangers of exposing sensitive information.
Semi-dedicated proxies
Semi-dedicated proxies are shared among up to three users. While there are some of the same issues as with shared proxies, the risk is lower because there are fewer users. There is even less risk if your proxy provider thoroughly vets its users. You may still experience some lag time since there are other users, but there arenât nearly as many performance issues as there are with shared proxies. This can be a good option if your budget is limited but you still want some of the privacy of a proxy with fewer users.
Private proxies
Private proxies are dedicated solely to you. This is the fastest and most secure option available. For businesses who are planning to use proxies for web scraping, this is the best option. Of course, itâs also the most expensive since it requires the most resources. However, the privacy, speed, and productivity you get with private proxies are unmatched. Itâs a worthy investment if youâre looking to gather large amounts of data.
Public proxies
Public proxies are shared proxies that are available to anyone. This is a high-risk option thatâs almost never the right choice â and certainly never for business use.
Even if these proxies were trustworthy, the tremendous amount of traffic they generate means that their performance is sluggish and unreliable. However, they arenât trustworthy. Public proxies are a security risk since theyâre open to all end users. Since most public proxies donât use HTTPS, your data is exposed when you use them. Public proxies lack any type of support so if you encounter a problem using one, youâre on your own to solve it.
Rotating proxies
Every time you make a request, a rotating proxy assigns a new proxy IP address. This is ideal when using a web scraper. Scrapers can generate requests much faster than a human can, which makes them stand out from human users.
Because they assign a new IP address for every request, rotating proxies make it look like a different user is behind every request. So if your scraper sends out a thousand requests, theyâll be sent from a thousand different IP addresses. For web scraping, the best option is rotating residential proxies. The combination of distinct IP addresses that appear to originate from human users makes them the perfect option for enterprise data scraping.
Static ISP proxies
A static ISP proxy IP address is a combination between a data center proxy and a residential proxy. Itâs issued by an ISP, but it originates in a data center.
For some use cases, static ISP proxies are the best of both worlds. They provide the speed of data center proxies with the authority of residential proxies. However, theyâre not optimal for web scraping because they donât change with every request. Even though they appear to be normal IP addresses, repeated requests with the same IP address will get banned, even if theyâre residential IPs. Static ISP proxies are a good option if youâre using proxies for anonymity, security, or location switching, but youâll be using them as a normal user rather than with bots.
If youâre looking for static ISP proxies to increase your anonymity and security on the internet, Rayobyte offers a plan for you. Weâre the largest U.S.-based proxy company. Our high-quality ISP proxies offer you unmatched control and customization.
IPv4 proxies
This is where things start to get a little technical. Going back to IP addresses â the IP stands for internet protocol. An internet protocol refers to a set of rules that governs how data is transferred over the internet.
An IPv4 address is an internet protocol version 4 address. These were the first types of IP addresses issued back in 1983, and theyâre still the most common type in use today. However, the internet of 1983 did not envision the sheer number of devices that would one day be connected to it, and all of the IPv4 addresses have been assigned. The advantage of using IPv4 proxies is that theyâre compatible with all websites.
IPv6 proxies
IPv6, which stands for internet protocol version 6 (version 5 was never formally adopted but did go on to serve as the basis for Voice over Internet Protocol (VoIP) technologies), is the newer version currently in use. IPv6 is more widely available now and has been adopted by slightly over 35% of websites.
IPv6 proxies are cheaper and more plentiful. They are also less likely to have been previously used and banned, which may happen with a recycled IPv4 address.
HTTP proxies
Hypertext Transfer Protocol (HTTP) is an internet protocol that has been used since the 1990s. Itâs very effective at transferring data, but it doesnât encrypt it so itâs risky to use. With so many data protection and cyber security regulations in place for businesses that gather data, failing to encrypt data not only leaves you open to malicious actors but also legal fines and penalties.
There may still be times when an HTTP proxy is a good option, however â HTTP proxies can access HTTPS websites by using a tunnel between the browser and the server to enhance anonymity and filter content.
HTTPS proxies
HTTPS, which stands for Hypertext Transfer Protocol over SSL is a protocol method that encrypts your data and provides much more security. Many websites have switched to HTTPS for this reason.
SOCKS proxies
SOCKS, short for Socket Secure, is a type of protocol thatâs compatible with all other types of protocols. There are two current versions, 4 and 5. SOCKS doesnât access your data, which is why itâs compatible with all other protocols. SOCKS proxies are secure and anonymous but theyâre not a good option for use cases that involve interpreting data such as web scraping.
Forward proxies
A forward proxy is the most common type of proxy. Itâs the type most people are referring to when they talk about proxies. It comes between a user and a website. You forward your request to the proxy and then it sends it on to the website. The website sends the information back to the forward proxy. Forward proxies can cache information to use for later requests.
Reverse proxies
A reverse proxy is one thatâs used by a web server, usually those with a lot of traffic. It acts as an intermediary between you (or your proxy) and the web server youâre targeting. This increases the speed and security of the web server since you donât access it directly.
Reverse proxies can also distribute traffic to many backend servers for websites that get a lot of visitors to help with performance. Another way reverse proxies enhance performance is by caching frequently requested data so that the server doesnât need to be accessed when itâs requested.
Transparent proxies
These are level 3 proxies, and they arenât useful for anonymity. Level 3 proxies provide the least anonymity compared to levels 1 and 2. Your IP address is easily found using this type of proxy. They are mainly useful for caching data and increasing your speed when youâre accessing frequently-visited websites.
Anonymous proxies
An anonymous proxy tries to make all of your internet activity untraceable. It hides your IP address from the server youâre targeting, but the server may still recognize that youâre using a proxy because it includes some other identifying information passed through in your header. This is called level 2 anonymity. These are also referred to as distorting proxies.
High-anonymity proxies
These provide the highest level of anonymity. The server you connect to doesnât receive any of your deviceâs identifying information and it canât even tell that a proxy is making the request. This is level 1 anonymity.
Suffix proxies
These proxies are rarely used anymore. Suffix proxies work by adding a suffix containing the proxy server URL to the end of the URL of the server youâre targeting. This used to allow you to bypass web filters, but itâs not very effective anymore because filters are more advanced.
CGI proxies
Common Gateway Interface (CGI) proxies are used on websites that donât allow true proxy settings to be changed. It uses a web form in your browserâs window to process the request. Because of more advanced privacy technologies, CGI proxies are rarely used now.
Tor onion proxy
Named âthe onion routerâ because of the layers of encryption software it uses, this is an open-source network designed to provide online anonymity. It routes traffic through a network of volunteersâ servers, adding a layer of encryption at each stop.
12P anonymous proxy
This is a network that builds on Torâs onion encryption by adding âgarlicâ routing. 12P encrypts the communication and distributes it through a network of volunteersâ routers. It hides the source of all information to get around censorship bans.
DNS proxies
A DNS proxy changes your numerical IP address to a readable IP address that allows your device to understand where you want to go. These are useful for unblocking geo-restricted content.
Cheap proxies
Cheap proxies are sold at below-market value prices. Though the price may be tempting, cheap proxy providers donât offer any other services with their proxies, rendering them virtually useless for legitimate use cases. They come with the same type of security and performance risks as public proxies.
If youâre purchasing cheap residential proxies, you have the added concern of unethical sourcing. Many cheap residential proxies were stolen, and being affiliated with these providers could harm your reputation and expose you to security breaches.
Free proxies
Free proxies have all of the same disadvantages as cheap proxies and are not a viable option for business. On top of the security, performance, and legal issues that are present with cheap proxies, there have been cases of free proxies being set up as a trap to allow malicious actors access to their usersâ data. Free proxies arenât worth the liability risk.
Combined proxies
The above are different aspects of proxies, but most proxies are a combination of several types. For instance, at Rayobyte we offer rotating residential proxies as well as rotating data center proxies, each with dedicated and semi-dedicated options.
Are Proxies Safe?
When it comes to proxies, the adage âyou get what you pay forâ is true. Proxies are only as good as your proxy provider. If you choose a free, unreliable, or unethical proxy provider, youâre better off not using a proxy at all. Their performance issues render them practically useless. You may also be exposing your devices and, by extension, your data, to malware.
If you choose a good proxy provider, however, proxies are not only safe to use â theyâre much safer than not using a proxy. Proxies that are obtained from a reliable provider protect your identity and your data by processing requests for you. This limits the number of servers that have direct access to your device.
Choosing a Proxy Provider
There are several factors you should take into consideration when youâre choosing a proxy provider. Some of the most important ones include:
IP volume and diversity
Look for a proxy provider with a wide range of locations and subnet diversity. A subnet is a block of IP addresses. There are three levels of subnets, classes A, B, and C. If youâre using data center proxies, subnet diversity is important because thereâs a higher risk of entire subnets getting banned when a website bans one data center IP. If this happens and your proxy provider doesnât provide enough subnet diversity, then your entire scraping project could get shut down.
For geolocation-based use cases, itâs important to have addresses located in a variety of countries. You wonât be able to bypass geo-blocks from a particular country if your proxy provider doesnât have an IP address that originates in that country.
You also want to make sure your proxy provider has a lot of IP addresses. If youâre in the middle of a scraping project and you suddenly run out of proxies, it will come to a screeching halt.
Bandwidth
With data center and static ISP proxies, look for a company that offers unlimited bandwidth and connections so you wonât be slowed down. With residential IP proxies, youâll probably have to pay for bandwidth to protect IP sources.
Customer service
As youâve probably gathered from this article, proxies can be complicated. You donât want a proxy provider who leaves you on your own to figure out any problems. Data collection is a core business function for many enterprises today. In many cases, a companyâs data is considered in its valuation.
Web scraping is no longer just a nice side project â itâs a fundamental aspect of your business strategy. When your data scraping goes down, itâs just as critical as any other software failure. Downtimes are expensive. You want a proxy provider with the expertise and customer support staff to get you back up and running as soon as possible.
Free replacement
No matter why youâre using proxies, youâre likely to get banned. Even if youâre only using a proxy for increased security, youâll probably run into instances where your proxy IP address is banned. If youâre using an IPv4 address, it could be because the user who had it before you was banned.
Make sure your proxy provider offers at least some free replacements so that youâre not stuck with a useless proxy because of a ban that wasnât your fault. Youâll also want the replacement to be automatic to save you from the hassle of having to manually replace it yourself.
Ethical standards
Although there are many legitimate uses for proxies, there are also many illegitimate ones. There are plenty of bad actors who want to use proxies for malicious and illegal purposes. In addition to the moral implications, being associated with an unethical proxy provider can damage your brandâs reputation. Some proxy providers will grant proxy access to anyone without asking any questions. This can also expose your company to security risks if youâre sharing proxies with them.
Customer and use vetting
When youâre looking for a proxy provider, donât hesitate to ask how they vet their customers. In fact, you shouldnât have to ask because they should vet you as well. If your proxy provider doesnât seem to care why you want to use their proxies, they probably donât care why anyone else does, either. Ensure your provider has a high standard of ethics so you can keep scraping data without the risk of compromising your data and security.
Ethical sourcing
One reason that residential proxies are expensive is that theyâre difficult to source ethically. Ethically sourcing residential proxies involves getting informed consent from every end-user for every IP address. It also includes setting limits on when those IP addresses can be used as well as offering end users a choice about how their IP addresses are used. Obtaining informed consent isnât a one-time effort, either. Ethical proxy providers should periodically check in with their end-users to ensure their consent is still valid and answer any questions they may have as well as offer simple, easy opt-out options.
The best ethical proxies you can find
At Rayobyte, we know the standards for ethical proxy providers because we set them. We stand behind our proxies and our customers. We are the only proxy provider who meets all of the standards here â although we hope the rest of the industry will soon follow our lead. We believe in complete transparency, so donât hesitate to contact us with a question about our products or processes.
Conclusion
After reading all of this, you should be somewhat of an expert on proxies, or at least have a more thorough understanding of them than when you started. In this era of big data, businesses that donât have a well-planned corporate data strategy will be missing out on a lot of opportunities. Web scraping and proxies may seem difficult to master, but itâs worth putting in the effort so your company can benefit from the insights that can only be obtained through analyzing heaps of data.
If youâd like to read additional content answering the question âwhat is a proxy serverâ, download our free ebook here. If youâre interested in finding out how we can partner with you to help you achieve your business goals, reach out to our team. Weâre always happy to hear from you and help you reach your data-gathering goals.
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