What Is the Proxy Industry and Why Does It Exist

The proxy industry wasn't built for hackers. Discover why IP rate limiting pushed legitimate businesses toward proxy infrastructure.

The proxy industry exists because of a simple tension that's been baked into the internet for the past two decades: websites want to control who accesses their data and how fast, and there's an entire economy of legitimate businesses that need to access that data at a scale websites aren't intended to serve.

To understand how we got here, you have to go back to when the internet first started taking off. By today's standards, websites back then were extremely vulnerable. But it wasn't much of a concern at the time, because the knowledge required to attack them wasn't easily accessible. As that changed, a new industry was born to defend against it: cybersecurity.

The Rise of Cyber Defences

Cybersecurity started off primarily focused on stopping the basics. DoS attacks were used to shut down a competitor's website or service. Breaches like SQL injections, IDOR vulnerabilities, and SSRF-style attacks were used to extract sensitive information from databases. Over time, the industry evolved, and so did the defences.

One of the most important developments was IP-based rate limiting. Once websites began limiting how many requests a single IP could make, single-machine attacks stopped scaling. Attackers had other reasons to spread out, too, mainly raw bandwidth and removing a single point of failure, but rate limiting gave them one more.

DoS gave way to DDoS (Distributed Denial of Service); the big early floods, like Panix in 1996 and the February 2000 attacks on Yahoo and eBay, were driven mostly by bandwidth and botnets. Brute-forcing credentials, where attackers test stolen email/password combinations against high-value sites, could no longer be run at scale from a single machine either, and it never let up: Akamai still counts tens of billions of attempts a month.

Who Else Got Caught in the Crossfire

That's the part of the story most people know. But what's less often discussed is who else got caught in the crossfire.

In parallel to all of this, an entirely legitimate industry was growing fast. Companies needed to:

Monitor competitor pricing across thousands of e-commerce sites
Verify that ads were being displayed correctly across different geos
Track SEO rankings across millions of keywords
Collect publicly available data to understand consumer trends
Pull flight and hotel prices in real time
Scan for counterfeits and trademark abuse

None of these are attacks. They're businesses extracting publicly available data at scale, for purposes that the websites in question often benefit from.

The problem is that the defensive mechanisms websites deploy don't distinguish between a malicious attacker and a price monitoring company. Both look like “a single IP making a lot of requests.” Captchas, IP rate limits, and bot detection systems treat them the same way.

Where Proxies Come In

If your business depends on being able to make a high volume of requests, and the website on the other end is rate-limiting per IP, the solution is to distribute those requests across many IPs. That's the entire premise. You're not bypassing security for malicious purposes; you're routing legitimate traffic through enough different IPs that you don't trigger limits designed to stop very different behaviour.

The proxy industry exists at this intersection. It was made necessary by the cybersecurity advancements that helped protect websites from real attackers, but those same advancements also affected legitimate consumers, researchers, and data-collection businesses. The proxy industry is what makes it possible for those legitimate operations to continue functioning in an internet where every IP is treated as suspicious until proven otherwise.

That's the honest story of how this industry was born. Not as a tool for attackers, but as the infrastructure that lets the legitimate data economy keep running.

If you want to understand exactly how proxies work at a technical level, the next article covers that in full.

Published by Alon Levi, CEO at FlashProxy

About the author: Alon Levi is the CEO of FlashProxy and has extensive experience in proxy infrastructure, network architecture, and large-scale IP routing technologies.

Connect on LinkedIn · Contact: alon@flashproxy.io

Frequently Asked Questions

Is using a proxy legal?

Yes. Proxies are tools, and like any tool, their legality comes down to how you use them. Three things worth separating.

Criminal law: in the US, scraping publicly available data generally isn't a CFAA violation, after Van Buren v. United States (2021) and the hiQ v. LinkedIn rulings.
Contract law: a site's Terms of Service can still bind you, and hiQ ultimately lost on exactly that, paying LinkedIn a $500,000 judgment (though Meta v. Bright Data went the other way in 2024 for public data scraped while logged out).
Data-protection law: if you're collecting personal data, GDPR and CCPA apply regardless of the above.

None of this is legal advice.

Who uses proxies?

E-commerce companies, ad tech firms, travel aggregators, cybersecurity researchers, SEO platforms, and AI companies are among the most common proxy users.

Why do websites block proxies?

Websites block proxies primarily to prevent excessive automated traffic that could overload their servers. The same rate limiting that stops attacks also catches legitimate data collection operations.

What is the proxy industry?

The proxy industry provides IP infrastructure that allows businesses to route internet traffic through large pools of IP addresses, enabling them to collect publicly available data at scale without hitting per-IP rate limits.