---
title: Web Security
description: Web security covers the practices and protocols used to protect websites and applications from cyber threats. Learners will understand common vulnerabilities, encryption, secure authentication, and how to defend against malicious attacks.
category: programming-tech
subcategory: web-development
difficulty: beginner, intermediate, advanced
url: /subject/web-security
---

# Web Security

Web security covers the practices and protocols used to protect websites and applications from cyber threats. Learners will understand common vulnerabilities, encryption, secure authentication, and how to defend against malicious attacks.

## Available Resources

1 Books • 2 Courses • 3 Websites

## Websites

### 1. Mozilla Observatory

Mozilla's free scanner that grades a website's HTTP security configuration. Checks headers such as Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options plus cookie and redirect settings, explaining each failed test so developers can harden their own sites.

**Difficulty:** Beginner | **Price:** Free

**Link:** https://observatory.mozilla.org

**Tags:** http-security-headers, content-security-policy, hsts, web-security, security-scanning

### 2. OWASP Foundation

Nonprofit foundation publishing open web application security standards and guides, including the OWASP Top Ten, the Application Security Verification Standard, the Web Security Testing Guide and the Cheat Sheet Series, used to identify, test for and prevent common web vulnerabilities.

**Difficulty:** Intermediate | **Language:** English | **Price:** Free

**Link:** https://owasp.org

**Tags:** owasp-top-ten, application-security, secure-coding, vulnerability-testing, web-vulnerabilities

### 3. web.dev/security

web.dev/security is Google's resource hub with tutorials, guides, and best-practice references for securing web applications, from HTTPS and security headers to authentication, permissions, and common vulnerabilities.

**Difficulty:** Intermediate | **Language:** English | **Price:** Free

**Link:** https://web.dev/security

**Tags:** websites, technology-computer-science, web-development

## Courses

### 1. OWASP Secure Coding Practices

Learn essential web-security practices with OWASP's Secure Coding course. Build robust, secure applications following industry standards.

**Difficulty:** Intermediate | **Price:** Free

**Link:** https://owasp.org/www-project-secure-coding-practices-quick-reference-guide/

**Tags:** secure-coding, owasp, input-validation, authentication, web-application-security

### 2. Web Application Security

This course covers essential web security concepts and secure coding practices. You’ll learn to identify common vulnerabilities, implement protection techniques, and leverage Microsoft Copilot to detect and fix security issues in web applications.

By the end of this program, you will be able to…

Define common web application vulnerabilities and principles of secure coding.

Explain the concepts and impacts of SQL injection, XSS, CSRF, input validation techniques, and best practices for authentication and authorization.

Describe the importance of output encoding, sanitization, secure data storage, and transmission.

Enhance the security of web applications with Microsoft Copilot to detect vulnerabilities, fix issues, and implement secure coding practices.

**Difficulty:** Beginner | **Language:** English | **Duration:** No prior experience is required for this course. | **Price:** Free

**Link:** https://www.coursera.org/learn/web-application-security

**Tags:** courses, technology-computer-science, web-development

## Books

### 1. Web Security for Developers

**Author:** Malcolm McDonald

A No Starch Press guide to the most common web application vulnerabilities, written for developers rather than security specialists. Explains injection, cross-site scripting, CSRF, broken authentication, and session hijacking with concrete code-level defenses, so readers can build and review safer web applications.

**Difficulty:** Intermediate | **Language:** English | **Price:** Paid

**Link:** https://www.amazon.com/dp/1593279949?tag=edmonddante07-20

**Tags:** web-security, xss, sql-injection, csrf, secure-coding

---

*This content is part of Dantes.io - Your Treasure Map to Knowledge*

*Curated by humans at Dantes.io. Personal study use welcome; republishing this curation requires permission (team@dantes.io).*

View this page online: https://dantes.io/subject/web-security