How Many Websites Use Cloudflare in 2024? A Deep Dive into the Leader in Web Performance and Security

If you run a website, there’s a good chance you‘ve heard of Cloudflare. But you may be wondering just how many sites actually use this popular web performance and security platform.

As an experienced cybersecurity analyst who has covered Cloudflare closely over the years, I’ll walk you through the latest data on their massive scale and adoption. You’ll see why Cloudflare has become a pillar of the modern web.

Let’s dive in!

A Quick Primer: What Cloudflare Does

For those new to Cloudflare, let me provide a quick overview.

Founded in 2009, Cloudflare provides a global content delivery network (CDN) and security tools to websites. Their services include:

• Speeding up sites by caching content closer to visitors’ locations
• Blocking DDoS attacks, bots, and other threats
• Reliable and fast DNS resolution services
• Web application firewall to filter dangerous traffic
• Analytics on visitor traffic and engagement

Cloudflare sits between your site and the open internet. When visitors request your pages, Cloudflare filters those requests through their network first.

This allows them to deliver your content faster, mitigate cyberattacks, gather site analytics, and more.

Now that you know what they do generally, let‘s see how many sites actually use Cloudflare today.

Cloudflare Now Powers Over 7.5 Million Websites Globally

According to Cloudflare’s own data, they now power over 7.5 million active websites around the world. This makes them one of the most widely adopted web performance and security networks globally.

To put that 7.5 million number in perspective:

• There are around 1.7 billion websites on the Internet today.
• So Cloudflare powers about 0.4% of all websites.

However, they have much higher adoption on popular and high-traffic sites:

• Among the top 10,000 sites by traffic, 3,280 use Cloudflare. That’s nearly 33%.
• Among the top 100 websites globally, Cloudflare is used by over 50.

So while total sites using Cloudflare is a fraction of the web, they dominate among the most visited sites.

Let’s explore more data points around their massive scale:

• Cloudflare services are used by over 49,600 companies
• Adopted by over 19,200 developers for their projects
• 1.4+ million active websites use Cloudflare just in the United States
• The United Kingdom sees over 122,000 websites powered by Cloudflare
• They operate in 200 cities in over 100 countries globally

Clearly Cloudflare has established itself as a core web infrastructure platform used by millions.

And adoption keeps accelerating rapidly. Total websites grew from around 3.5 million in 2018 to over 7.5 million now.

Below I’ll breakdown their customer base and growth in more detail. But first, which major sites actually use Cloudflare?

Top Websites Powered by Cloudflare

Cloudflare doesn’t publicly share its customer list. However, many well-known sites openly share that they rely on Cloudflare services.

Just some of the most popular websites using Cloudflare include:

• Facebook – The world‘s largest social network.
• Reddit – One of the most visited sites in the US.
• Uber – Leading ridesharing app.
• Slack – Enterprise messaging platform.
• Lyft – Uber’s main ridesharing competitor.
• Pinterest – Highly-trafficked social media platform.
• Medium – Influential online publishing site.
• Buzzfeed – Viral news and entertainment publisher.
• Yelp – Local business reviews platform.
• OkCupid – Popular online dating site.
• Discord – Chat app for gamers and communities.
• DoorDash – Major food delivery service.
• Patreon – Enables creators to earn income from fans.
• Blizzard – Major video game developer and publisher.
• Xfinity – Website for Comcast‘s home services.
• IBM Cloud – Cloud platform from tech giant IBM.

This sample illustrates Cloudflare’s broad adoption across consumer and business sites, covering news, tech, ecommerce, gaming, dating, food delivery, ridesharing, and more.

Next let‘s look at usage across industries.

Which Industries Use Cloudflare Most?

In addition to major consumer brands, Cloudflare is popular across many industries and verticals.

According to 2020 data, these are the top website categories using Cloudflare:

Technology and telecom lead, given Cloudflare’s roots in Silicon Valley. But they also have strong adoption across entertainment, news, ecommerce, finance, real estate, healthcare, and many other verticals.

This demonstrates the widespread utility of Cloudflare’s performance and security services across industries.

Cloudflare Usage Across Languages

The majority of sites using Cloudflare are in English, which total over 863,000.

However, they also have significant non-English adoption including:

• French – 37,718 sites
• Spanish – 35,574 sites
• German – 35,301 sites
• Portuguese – 26,415 sites
• Italian – 23,241 sites
• Mandarin – 8,723 sites
• Arabic – 5,051 sites

So while English leads, Cloudflare still powers hundreds of thousands of sites in other major global languages.

As their network expands across 200 cities internationally, expect their non-English user base to continue growing quickly.

Major Enterprises Rely on Cloudflare

In addition to consumer brands, Cloudflare powers sites for many well-known enterprises across sectors:

• Udemy – Elearning platform valued at over $3 billion.
• Medium – Highly influential online publishing platform.
• Stack Overflow – Popular Q&A site for developers.
• Tinder – Top grossing dating app globally.
• Coinbase – Leading cryptocurrency exchange.
• DoorDash – Largest food delivery service in the US.
• IBM – Multinational tech consulting giant.
• Citrix – Provides digital workspace solutions used by 400,000 organizations.
• Qualtrics – Experience management software firm acquired for $8 billion.
• Datadog – Cloud monitoring & analytics platform valued at $26 billion.
• Canva – Fast-growing graphic design tool valued at $40 billion.

Cloudflare powers the web presence and applications for many of the most prominent companies worldwide across all categories.

But why exactly are enterprises adopting Cloudflare? Let’s explore some of the benefits they offer large companies.

Why Enterprises Choose Cloudflare

There are several key reasons major enterprises choose Cloudflare:

Superior performance – Cloudflare’s global private backbone network and intelligent caching deliver sites and mobile apps much faster to users worldwide. Faster sites directly drive higher conversion rates and revenue.

Enhanced security – Cloudflare blocks an average of 72 billion cyber threats per day. Their platform protects sites from DDoS attacks, malware, data breaches, and other threats.

Reliability – Cloudflare provides near 100% uptime via their massive network, ensuring sites stay online 24/7.

Visitor insights – Cloudflare gives companies rich analytics into website visitors, traffic sources, engagement and more to inform marketing.

Ease of use – Cloudflare is easy to set up across domains in just a few clicks. Their dashboard makes it simple for enterprises to manage performance, security and analytics.

Cost savings – By caching content on Cloudflare’s edge, companies can reduce their origin web server costs and infrastructure spend significantly.

Consumer trust – Using a trusted platform like Cloudflare earns greater consumer confidence in a brand‘s site security and performance.

Innovation – Cloudflare rapidly launches new cutting-edge developer products like serverless computing platform Cloudflare Workers that enterprise tech teams can leverage.

These benefits make Cloudflare an essential platform for many large companies and brands worldwide.

Adoption by Developers

In addition to businesses, Cloudflare has gained huge popularity among developers who use its services for their own sites and applications.

Cloudflare offers many developer-friendly products including:

• Cloudflare Workers – Serverless platform to build and deploy apps globally.
• Cloudflare Pages – Platform for deploying JAMstack websites.
• Cloudflare DNS – Fast and customizable DNS resolver.
• Cloudflare Access – Zero trust solution to secure internal resources.
• Cloudflare Analytics – Free visitor analytics solution.
• Cloudflare Spectrum – DDoS protection and TCP/UDP proxy.

Some popular developers using Cloudflare for their projects include:

• Thomas David (Web Developer)
• Vishwajeet Vatharkar (Full Stack Developer)
• Timo Horstschaefer (Full Stack Developer)
• Nick Kolokotronis (Front-End Developer)
• Manuel Spagnolo (Full Stack Developer)
• Avinash Raj (Senior Developer)
• Hugo (Developer)

Developers are sharing integrations and tips for Cloudflare across GitHub, Reddit, Stack Overflow, and HackerNews frequently.

The generous free plan, robust API, and cutting-edge products have driven significant organic adoption among developers and startups building modern web apps.

Integrations with Cloudflare

In addition to using Cloudflare‘s own suite of tools, many customers integrate Cloudflare with other third-party platforms:

Monitoring and analytics – Pingdom, Datadog, Sentry, Clicky

CMSS and hosting – Acquia, Plesk, WP Rocket

Security – Google reCAPTCHA, Auth0, Sift Science

Testing and deployment – Selenium, Jenkins, Buddy

Customer support – Zendesk, Freshdesk, UserVoice

Infrastructure management – Terraform, Ansible, Kubernetes

Cloudflare provides an API and webhooks to easily connect with hundreds of other solutions. This allows teams to build custom stacks tuned to their specific needs.

Cloudflare Users by Country

Given their 200+ city global infrastructure, Cloudflare powers sites in almost every country worldwide.

These are the top 10 countries by number of active Cloudflare websites:

The US leads by a wide margin, given Cloudflare‘s San Francisco HQ. But other major English-speaking and European countries see strong adoption as well.

Emerging markets like India, Russia, and Brazil are growing fast too as internet penetration rises.

Tracking Cloudflare‘s Customer Growth

Let‘s look at how Cloudflare‘s customer base has expanded globally over the past 5+ years.

Cloudflare divides its customers into 3 core segments:

1. Free Users

Get basic CDN and security features free of charge. Limited primarily to Cloudflare‘s core services.

2. Paying Subscribers

Use more advanced features on one of Cloudflare‘s paid plans, which start at $20/month.

3. Large Enterprises

Big brands spending $100,000+ per year on Cloudflare services.

Here‘s the customer breakdown:

• Total customers: 4+ million
• Free users: 3.7+ million
• Paying subscribers: Over 119,000
• Large enterprises: 945 (Q1 2021 number)

Offering a generous free tier has helped Cloudflare drive mass adoption. Many free users convert to paid plans as they grow.

And large enterprise customers have expanded rapidly:

• In Q4 2020 Cloudflare had 828 large enterprise customers
• Up 57% YoY from Q4 2019
• Each large customer spends $100,000+ per year with Cloudflare

Winning more large enterprises has been a key strategic focus of Cloudflare. These customers now deliver over 30% of total revenue.

Cloudflare’s Revenue Growth Since IPO

Cloudflare’s broader customer expansion has also fueled surging annual revenues:

• 2020 revenue: $431 million (Up 50% YoY)
• 2019 revenue: $287 million (Up 49% YoY)
• 2018 revenue: $192 million
• 2017 revenue: $135 million

Since their 2019 IPO, Cloudflare has sustained ~50% year-over-year revenue growth.

Their Q1 2021 revenue also grew 50% YoY to $138 million.

As more business moves online, Cloudflare is capitalizing on the growing demand for web performance, security, and edge computing globally.

The Road Ahead for Cloudflare

Cloudflare has already built an enormously scaled global network powering millions of sites and apps.

But they still have plenty of room left to grow, both with new customers and expanding adoption across existing accounts.

Some trends that should further accelerate Cloudflare’s growth:

• Rising cyberattacks, driving demand for their security offerings.
• More sites pursuing faster performance to improve conversions.
• Growth of edge computing, which Cloudflare specializes in.
• More enterprises moving business-critical functions to the web.
• Their expanding portfolio of developer-focused products.
• New international expansion, especially across high-growth regions like Latin America, Southeast Asia and Africa.

For any organization looking to improve their website or application performance, security, reliability, and analytics, Cloudflare deserves strong consideration given its immense scale and network effects.

As one of the foundational platforms underpinning the modern web, expect Cloudflare‘s already massive customer base to keep expanding for years to come.

The Bottom Line

Cloudflare now powers over 7.5 million active websites globally, making it one of the most widely used web infrastructure platforms.

Major consumer brands like Facebook and Uber rely on Cloudflare, alongside millions of smaller businesses across nearly every category and industry.

Their blend of performance, security, and developer tools has driven significant organic adoption. Whether you‘re a consumer brand, online retailer, SaaS company or builder creating your own app, Cloudflare likely deserves a close look.