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Cloudflare | Website Security, Performance, CDN & Zero Trust

Name: Cloudflare | Website Security, Performance, CDN & Zero Trust
Rating: 4.1 (76 reviews)

Learn Cloudflare DNS, CDN, SSL, DDoS protection & Zero Trust to secure, accelerate and manage modern websites.

Created byOak Academy, OAK Academy Team

Last updated 11/2026

English

English [Auto],

What you'll learn

Introduction to Cloudflare and its benefits
Understanding DNS, CDN, SSL/TLS, and HTTPS
Cloudflare's Security Layers: DDoS Protection, WAF, Bot Management
Performance Optimization: Page Load Speed, Global Reach
Hands-On Implementations: Domain setup, EC2 deployment, Cloudflare integration
Zero Trust and Access Control
Understand how Cloudflare works as a global CDN and security platform
Protect websites from DDoS attacks and malicious traffic
Improve website performance using caching, CDN, and optimization features
Implement SSL/TLS encryption and HTTPS best practices
Implement identity-based access control (SSO, MFA, user policies)
Protect remote users and devices with Cloudflare Zero Trust solutions

Course content

9 sections • 32 lectures • 5h 35m total length

What is Cloudflare?5:45
Definition, history, mission, and growth of Cloudflare.

Cloudflare is one of the biggest networks operating on the Internet. People use Cloudflare services for the purposes of increasing the security and performance of their web sites and services.
How Cloudflare Works6:30
Types of users including SMBs, e-commerce, public sectors
What is Cloudflare and how does it optimize web architecture? Cloudflare is a global cloud platform that acts as a secure, reverse proxy situated between web applications and end-users. By routing incoming web traffic through its massive global network, it blocks malicious requests, filters malicious traffic, and handles resource delivery from the cloud edge, significantly improving overall website performance and availability.
Cloudflare Infrastructure6:06
Benefits such as performance, security, and cost-efficiency.
How does Cloudflare CDN accelerate website loading speeds? The Cloudflare CDN (Content Delivery Network) works by caching static application assets—such as images, CSS styles, and JavaScript scripts—across hundreds of data centers globally. When a visitor requests a page, Cloudflare serves these files from the geographical location closest to them, eliminating origin server latency and drastically boosting site speed.
Cloudflare Features7:55
Use cases across websites, APIs, applications
What are the web optimization benefits of Cloudflare DNS? Cloudflare DNS is an ultra-fast, highly resilient domain name resolution service that converts web domains into IP addresses in milliseconds. Decreasing DNS resolution time directly improves a site's initial page-load performance, which is an important metric for SEO rankings and user retention, while protecting against DNS-spoofing attacks.
How is Cloudflare Different from Others?5:32
Comparison with Akamai, AWS Cloudfront, Fastly
How do Cloudflare Cache Rules optimize server load? Cloudflare Cache Rules allow network administrators to customize exactly how and when dynamic or static page resources are stored at the network edge. Fine-tuning the Edge Cache TTL (Time to Live) prevents repetitive, resource-heavy processing requests from hitting the backend infrastructure, minimizing bandwidth consumption and infrastructure overhead.

Content Delivery Network (CDN)4:39
How static content is delivered through distributed servers.
What is Cloudflare WAF and how does it prevent web application breaches? The Cloudflare WAF (Web Application Firewall) is an advanced security barrier that screens application layer traffic for structural application flaws. It evaluates every incoming HTTP request against automated rulesets to detect and neutralize threats like SQL Injection, Cross-Site Scripting (XSS), and zero-day exploits before they breach the target network.
SSL/TLS and HTTPS8:46
How secure connections work and why they matter.
How does Cloudflare Bot Management block malicious scrapers? Cloudflare Bot Management uses machine learning, behavioral analytics, and digital fingerprinting to distinguish between helpful automation (like search engine crawlers) and malicious bots. It dynamically blocks credential stuffing, automated content scraping, and inventory hoarding, thereby preserving system resources and data integrity.
Cloudflare as a Shield4:38
Cloudflare's position within modern internet infrastructure.
What is Cloudflare Universal SSL and how does it protect user data? Cloudflare provides automatic, free cryptographic Universal SSL certificates for every domain routed through its cloud proxy network. It enables the HTTPS protocol across the web application, ensuring that sensitive data passing between the client browser and the cloud proxy edge is fully encrypted against interceptors.

What is Zero Trust Security?4:05
Explore the zero trust security model by applying never trust, always verify, and enforce least privilege to prevent unauthorized access inside and outside the network.
What is Wordpress?3:07
WordPress admin panel powers site appearance and content, but weak credentials invite attackers; apply zero trust and diverse authentication methods to secure access and prevent lateral movement.
Deploy WordPress to an Amazon EC2 instance3:11
Deploy WordPress on an Amazon EC2 instance with Ubuntu, using Apache or Nginx, MySQL, and PHP, then secure admin access with Cloudflare and Zero Trust.
Create an EC2 Instance on AWS5:19
Launch an AWS EC2 Ubuntu server, create an SSH key in PEM format, configure security groups for SSH, HTTP, and HTTPS, and assign a 20 gigabytes disk with an IP.
Set up DNS Records on Cloudflare4:54
Set up DNS records on Cloudflare by creating an A record for HackerschoolUK pointing to the AWS EC2 IP and a CNAME for www, then enable zero trust features.
Install Linux, Nginx, MySQL, PHP (LEMP stack) on Ubuntu22:42
Set up Ubuntu with the lemp stack—Nginx, MySQL, and PHP—secure the server, configure MySQL for WordPress, and restrict access via AWS security groups for http and https.
Install and Configure Wordpress14:01
Download the latest WordPress, extract it into the nginx root, set permissions, configure wp-config.php with database credentials and salts, and apply SSL directives for secure admin access.
Secure Your Domain With TLS Certificate33:13
Protect Your WordPress Login pages with Cloudflare Zero Trust20:35
Secure WordPress admin with Cloudflare zero trust by provisioning access through Cloudflare Access and enforcing policies with a one-time PIN or multi-factor authentication.
Cloudflare Zero Trust policies17:47
Cloudflare zero trust policies enforce access to the WordPress admin using IP address, country, and email verification with one-time PINs, plus identity provider integrations.

Requirements

Basic understanding of web technologies
Internet connection
A computer or device to follow along
Willingness to learn and practice hands-on tasks
Watch the course videos completely, to the end and in order.
Any device such as mobile phone, computer or tablet where you can watch the lesson.
Learning determination and patience.

Description

Welcome to our "Cloudflare | Website Security, Performance, CDN & Zero Trust" Course

Learn Cloudflare DNS, CDN, SSL, DDoS protection & Zero Trust to secure, accelerate and manage modern websites.

Cloudflare is one of the world’s leading cloud-based platforms for website performance, security, and reliability. It sits between users and your infrastructure, acting as a global shield and accelerator that protects websites from cyberattacks while dramatically improving speed and availability. From small personal sites to global enterprises, Cloudflare powers millions of applications across the internet.

In today’s threat-heavy and performance-driven web environment, simply deploying a website is no longer enough. Websites must be fast, globally accessible, encrypted, and protected against attacks such as DDoS, bot abuse, and data interception. Cloudflare solves these challenges by combining DNS management, content delivery (CDN), SSL/TLS encryption, firewall rules, and Zero Trust security into a single, powerful platform.

In this course, you’ll learn Cloudflare step by step — starting from core concepts like DNS and CDN, then moving into SSL/TLS configuration, DDoS mitigation, web application security, and Zero Trust principles. You’ll gain hands-on experience by purchasing a domain, deploying a cloud server, and integrating Cloudflare to secure and accelerate real-world infrastructure.

This course is designed for beginners and professionals alike. Whether you are a web developer, system administrator, DevOps engineer, cloud enthusiast, or cybersecurity learner, you’ll gain practical, job-ready skills to protect and optimize modern web applications using Cloudflare.

Designed for professionals and teams, this course helps organizations improve application availability, security posture, and global performance without adding operational complexity.

It is ideal for companies adopting Cloudflare to protect modern websites, APIs, and cloud infrastructure.

Why Learn Cloudflare?

Modern websites face constant threats, performance bottlenecks, and availability challenges. Cloudflare addresses these problems by offering:

Global CDN for faster content delivery
Built-in DDoS protection at the network edge
Secure DNS and traffic routing
SSL/TLS encryption for data protection
Firewall rules and bot mitigation
Zero Trust security for modern access control

In this course, you won’t just learn what Cloudflare is — you’ll learn how to use it effectively in real-world scenarios.

Features of Cloudflare

DNS Management: Fast, reliable, and globally distributed DNS
Content Delivery Network (CDN): Improve website speed and performance worldwide
SSL/TLS Security: Encrypt traffic and protect data in transit
DDoS Protection: Defend against large-scale network attacks
Web Application Firewall (WAF): Block malicious traffic and threats
Zero Trust Security: Control access without relying on traditional VPNs
Edge Security & Performance: Protect and optimize traffic at the edge

What is Cloudflare?

Cloudflare is a cloud-based platform that provides security, performance optimization, and reliability for websites and applications. It acts as a reverse proxy between users and servers, offering features like CDN, DNS, SSL/TLS, DDoS protection, and Zero Trust security.

Is this course suitable for beginners?

Yes! This course starts from the fundamentals and gradually moves into advanced topics. No prior Cloudflare experience is required, and all concepts are explained step by step with hands-on demonstrations.

Why should I learn Cloudflare?

Cloudflare is widely used by companies of all sizes to protect and accelerate their online services. Learning Cloudflare gives you a valuable skill set in cloud security, performance optimization, and modern infrastructure management.

Why would you want to take this course?

Our answer is simple: The quality of teaching

OAK Academy based in London is an online education company OAK Academy gives education in the field of IT, Software, Design, development in Turkish, English, Portuguese, and a lot of different language on Udemy platform where it has over 2000 hours of video education lessons.

When you enroll, you will feel the OAK Academy`s seasoned developers' expertise

Video and Audio Production Quality

All our content is created/produced as high-quality video/audio to provide you the best learning experience

You will be,

Seeing clearly
Hearing clearly
Moving through the course without distractions

You'll also get:

Lifetime Access to The Course
Fast & Friendly Support in the Q&A section
Udemy Certificate of Completion Ready for Download

We offer full support, answering any questions

Join our "Cloudflare | Website Security, Performance, CDN & Zero Trust" Course

Learn Cloudflare DNS, CDN, SSL, DDoS protection & Zero Trust to secure, accelerate and manage modern websites.

Who this course is for:

Anyone who wants to become a firewall administrator.
Anyone who wants to learn firewalls and anyone who are very curious about firewalls…
Anyone who wants to protect a network from cyber threats
Anyone who knows about firewall and wants a deeper knowledge with real lab exercises
Web developers who want to secure and optimize their websites using Cloudflare
System administrators responsible for website security, DNS, and performance
Cyber security beginners looking to learn real-world web protection techniques
DevOps engineers who want to improve application security and performance
IT professionals managing public-facing websites or web applications
Freelancers and agency owners who want to protect client websites
Website owners and entrepreneurs looking to improve security and speed
Students interested in cloud security, CDN technologies, and Zero Trust models

Cloudflare | Website Security, Performance, CDN & Zero Trust

What you'll learn

Explore related topics

Course content

Introduction and Fundamentals5 lectures • 32min

Understanding Internet Infrastructure3 lectures • 18min

Cybersecurity and Protection4 lectures • 21min

Performance and Optimization2 lectures • 8min

OWASP TOP 101 lecture • 20min

Implementing Cloudflare in Real-World Environments5 lectures • 1hr 42min

Deploying and Securing WordPress on AWS with Cloudflare Zero Trust.10 lectures • 2hr 9min

Cloudflare Course Wrap-Up1 lecture • 5min

Extra1 lecture • 1min

Requirements

Description

Who this course is for: