What is Cloudflare?

IT security and web performance 24/7

With one of the most extensive global networks and advanced security features, Cloudflare delivers cloud services based on performance, security and reliability. It offers a wide range of services to businesses of all sizes and geographies to make them more secure, improve the performance of their mission-critical applications and eliminate the cost and complexity of managing individual network hardware.

Cloudflare offers a wide range of online services designed to improve website security and performance. Its offerings include:
– protection against Denial of Service (DoS) attacks,
– a content caching system to speed up page loading,
– and a web security solution that protects against threats such as viruses, spyware and spam.



By using Cloudflare’s globally distributed data centers, users can also benefit from reduced latency and improved site availability. Cloudflare has become a benchmark in the web security industry, and is used by many website owners around the world.

The Cloudflare network serves as a unified, scalable, and easy-to-use control plane to ensure the security, performance, and reliability of on-premises, hybrid, cloud, and software-as-a-service (SaaS) applications. The platform addresses the full range of customer needs for security, performance and reliability. As of December 31, 2021, more than 19% of the 1,000 Fortune companies were Cloudflare paying customers.

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Cloudflare and Castelis

Most of Castelis’ infrastructure managed services clients are already on Cloudflare, which allows us to guarantee the security, performance and reliability of our clients’ websites and applications.

Today our experts manage more than 8000 domains on Cloudflare for SMEs, ETIs and large CAC 40 companies. Thanks to our global teams in Asia and Europe, we not only bring our know-how but also a 24/7 operational presence to our customers.


Castelis is the first Cloudflare Managed Service Provider in France, certified to implement and manage the various Cloudflare products on a daily basis.

10 in 1

With Cloudflare, save on servers and solutions by concentrating up to 10 specific products on a single platform.


Reduce the attack surface by up to 90% by protecting users' high-risk browsing and controlling access to network applications.


Protect your websites and web applications

Firewall, anti-DDoS protection, bandwidth limitation, bot management, VPN… Cloudflare has a particularly dense range of solutions to protect you from cyber threats.

Your website, your APIs and your applications are the core of your business, for your customers, your subcontractors and your employees. They therefore represent major challenges for your company, exacerbated by the widespread use of telecommuting, which widens the gap between successful online organizations and those undergoing digital transformation.

  • Secure your website and connected tools, replace virtual private networks (VPN) and control secure SaaS access (CASB)
  • Mitigate DDoS attacks, filter malicious bots, stop ransomware, phishing and data loss
  • Secure your telecommuters, protect your employees on the Internet, and manage contractor access.

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of cyber threats since the beginning of the health crisis and the widespread use of telecommuting. (source: HP)


of cybersecurity breaches are caused by human error. (source: Kaspersky)


of companies that have been victims of fraud have suffered losses of more than €10,000, and even €100,000 for 14% of them. (source: Euler Ermes 2021)

Platform and products performance

Accelerate your digital services

Smart routing, mobile optimization, image compression, video functionality, caching… Cloudflare optimizes performance of your websites, promoting an optimal user experience.

What’s more, it centralizes and accelerates the allocation of access to users, securing the company’s web environment, while simplifying the connection of employees, subsidiaries and suppliers to the tools.

  • Accelerate web applications to maximize engagement, increase conversions and reduce costs
  • Ensure application availability by optimizing application availability, monitoring network latency, and maintaining server integrity

Improve the web experience by optimizing the website to make it lighter, faster, and more efficient.

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+ 2/3

of companies compete primarily on the basis of customer experience (36% in 2010), making it the primary differentiator, ahead of price and product features.


of customers will share a positive experience with 6 or more people. On the other hand, if dissatisfied, 13% will share their opinion with 15 or more people.


of companies say that an optimal customer experience increases their revenues and profits, positively impacting brand awareness, employee satisfaction, average shopping basket and customer loyalty.

Reliability of the Cloudflare network

Take advantage of the most reliable solution on the market

Cloudflare manages the security and performance of nearly 25 million Internet properties every day, including those of notable e-commerce names, government institutions, and corporations. Load balancing, DNS, virtual infrastructure…

Cloudflare ensures that its customers’ websites always remain online and available to users around the world. To do this, it relies on the robustness of its network of 250 data centers around the world for a fast and secure service at any time.

  • No data loss thanks to the global network
  • No security breaches thanks to SASE
  • Cost control by getting rid of internal servers and their maintenance

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In August 2021, Cloudflare thwarts the largest DDoS attack ever reported, involving 17.2 million requests per second.

20 000 bots

A massive attack launched by more than 20,000 malicious bots located in 125 countries around the world.

3 X

Three times larger than any other event reported so far, without being able to impact the stability of Cloudflare.

A deeply integrated Cloudflare product suite

Cloudflare is a global cloud service provider that serves as a unified control plane for its customers. Customers can join Cloudflare quickly and easily using just one of the products and grow over time by adding most products with a single click. Cloudflare’s integrated suite of products consists of solutions for an organization’s external infrastructure, solutions for internal resources, solutions for developers and consumer offerings.

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For external infrastructure

Cloudflare offers a suite of products that help ensure that external infrastructure - websites, applications and APIs - exposed to the Internet are protected from attack, quickly and reliably. It provides an integrated cloud-based security solution designed for cross-platform security: public cloud, private cloud, on prem, SaaS applications and IoT devices.


For internal infrastructure

Cloudflare provides a complete cloud-based networking solution that is designed to be secure, fast, reliable and define the future of the enterprise network. Leveraging the public Internet, Cloudflare monitors how employees connect, ramps to branch offices, secure connectivity for applications, and controlled access to SaaS on a single pane of glass.


Solutions for developers

By leveraging Cloudflare's serverless platform, developers can create serverless applications that scale without the need to spend time and effort on infrastructure or operations. This allows them to deliver higher-performance applications that scale globally instantly, while improving productivity.


General public products

Cloudflare's consumer products enable individuals to enjoy a powerful and secure Internet experience. Adoption of consumer offerings makes commercial offerings more powerful, and adoption of its commercial offerings improves consumer offerings.

Partenaire MSP managed services partner de l'année Cloudflare Castelis

Cloudflare x Castelis technological partnership

An expert and certified team

We developed a partnership with Cloudflare a few years ago and have recently become the first Cloudflare managed services provider in France.

Our teams are certified on different Cloudflare products in order to implement and manage the different services and offers on a daily basis.

For 2022, we received the MSP Partner of the Year award for the EMEA region.

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