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Cloudflare keeps websites fast and safe, and sells security and networking services to businesses that run things on the internet.
Cloudflare is the invisible security guard and traffic cop for a huge chunk of the internet. When you load a website that uses Cloudflare, your request doesn't go straight to that website's server. It first passes through Cloudflare's network, which checks whether you're a real person or a bot, blocks known attacks, and serves up a saved copy of the page if it can. That keeps sites online when traffic spikes and keeps them from getting knocked over by hackers. The company serves everyone from a blogger with a free plan to giant enterprises and governments.
The business has two big parts. The first is selling security and network services to paying customers: things like protecting against denial-of-service attacks (floods of fake traffic meant to crash a site), a firewall for web traffic, and a service that connects employees securely to their company's apps without a clunky old VPN. The second, and the one Wall Street cares most about, is a developer platform. Cloudflare rents out computing power and storage on its global network, so companies can run code close to users, host data, and even run artificial intelligence models — competing with the big cloud providers but with a different pitch: you deploy in seconds and pay for what you use, without wrestling with servers. Who pays? Mostly businesses, and increasingly large ones. Cloudflare's free tier is a customer-acquisition machine — millions of websites use it for nothing, and a slice of those eventually upgrade to paid plans or buy the developer products. Its competitors include Akamai and Fastly in content delivery, and the giant cloud platforms (Amazon Web Services, Microsoft Azure, Google Cloud) in the compute and security space. Cloudflare's edge is that its network spans hundreds of cities worldwide, which lets it do security and computing cheaply and close to users, and it sells a broad set of products that customers can switch on one at a time.
In 2004, Matthew Prince and Lee Holloway wanted to know where email spam came from, so they built Project Honey Pot, a tool that let website owners watch how spammers grabbed email addresses. But users kept asking for something more: not just to track the bad guys, but to stop them. That simple request planted the seed for Cloudflare.
At Harvard Business School, Matthew met Michelle Zatlyn, who saw the chance to actually stop Internet threats instead of just watching them. The plan was first called Project Web Wall, until a friend suggested Cloudflare, a firewall in the cloud, and the name stuck. The team won the school's business plan competition and raised its first big round of money from Venrock and Pelion.
Cloudflare launched at TechCrunch Disrupt in the fall of 2010. The private beta had revealed a surprise: sites on the service loaded about 30% faster, so it sold performance as well as security. Customers and investors came rushing in, and within a month the company had raised $20 million from NEA.
In 2014, Cloudflare gave away enterprise-grade cryptographic technology that secures the web. It was a giant step beyond the original firewall idea, widening what the company could offer as a security business.
Cloudflare went public in 2019. The IPO marked the moment the startup became a public cloud networking and cybersecurity company.
The stock had climbed from $18 at its IPO to a high of $135 by 2021. Then it plummeted from $135 to $112 within weeks, because the market judged it overpriced at more than 60 times revenue. The high-growth story, it turned out, was very sensitive to valuation.
When inflation shocked the economy in 2022 and the Fed tightened, Cloudflare stock fell 69% while the S&P 500 lost 24%. It took over two and a half years for the shares to regain their March 2022 peak, and they did not get there until January 2025.
In 2024, Cloudflare brought in Chirantan "CJ" Desai, formerly ServiceNow's President and COO, as President of Product & Engineering. He had helped scale ServiceNow from $1.5 billion to more than $10 billion in annualized revenue, and the hire was framed as preparing Cloudflare for its next growth phase, targeting $5 billion in annual recurring revenue. Shares jumped about 9%.
In 2026, Cloudflare announced layoffs of about 1,100 employees, roughly 20% of staff, as part of a shift to an "agentic AI-first" operating model. Revenue rose 34% to $640 million and beat expectations, but weak guidance for the next quarter disappointed. Shares fell 23.6% on May 8, 2026, the largest one-day drop in the company's history, as AI inference costs raised margin concerns.
Q4 2025 revenue hit $614.5 million, up 34% year over year, and a bullish 2026 forecast sent shares up 13%. The company closed its largest-ever annual contract, worth $42.5 million per year, as new contract growth hit nearly 50%. Weekly AI agent traffic on its network more than doubled in January 2026, positioning Cloudflare as the control plane for the "Agentic Internet."
The company has grown fast but is not yet consistently profitable on a standard accounting basis; it has reported net losses while investing heavily in its network and products. It does generate positive free cash flow, which it plows back into expanding its network and buying smaller companies to add features. One notable deal: it acquired Area 1 Security in 2022 to strengthen email protection. A vulnerability worth knowing about: Cloudflare's power cuts both ways — when its own systems have outages, a big slice of the internet feels it, which is a reminder that a company sitting in the middle of so much traffic carries real concentration risk.
Saved answer · last researched 19 Oct 2026