Web crawler courses can help you learn how to extract data from websites, manage large datasets, and optimize crawling strategies. You can build skills in parsing HTML, handling JavaScript-rendered content, and implementing rate limiting to avoid getting blocked. Many courses introduce tools like Scrapy and Beautiful Soup, that support web scraping projects, and demonstrate how to use APIs to enhance data collection and analysis.

Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Javascript, Web Design, Event-Driven Programming, Web Design and Development, Development Environment, Web Development, User Interface and User Experience (UI/UX) Design, Web Applications, Software Development Tools, Interactive Design, Animations, Typography, Color Theory, Web Analytics and SEO, Debugging, Data Validation
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: React.js, HTML and CSS, Application Deployment, Web Development, Front-End Web Development, Web Applications, Web Development Tools, Full-Stack Web Development, Web Frameworks, Performance Tuning, Javascript, Server Side, GitHub, Application Programming Interface (API)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Postman API Platform, OAuth, Application Programming Interface (API), Performance Testing, Security Testing, Software Testing, Restful API, Authentications, Web Development Tools, Application Security
Beginner · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Responsive Web Design, User Interface (UI) Design, Web Development Tools, HTML and CSS, User Interface and User Experience (UI/UX) Design, Front-End Web Development, Javascript, Bootstrap (Front-End Framework), React.js, Back-End Web Development, Semantic Web
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Extensible Markup Language (XML), Extensible Languages and XML, Cascading Style Sheets (CSS), HTML and CSS, Data Validation, Data Mapping, Verification And Validation, Data Sharing, Javascript, Document Management, Hypertext Markup Language (HTML), Technical Documentation, Interoperability, Maintainability, Data Integrity, Information Architecture, Software Documentation, Data Management, Scripting, Web Content Accessibility Guidelines
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Flask (Web Framework), User Accounts, Web Development, Web Applications, HTML and CSS, Authentications, Cascading Style Sheets (CSS), Database Development, Database Management
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Debugging
Advanced · Course · 1 - 3 Months

Skills you'll gain: Angular, Bootstrap (Front-End Framework), JavaScript Frameworks, Authentications, Web Applications, Authorization (Computing), Javascript and jQuery, Security Controls, Web Design and Development, Role-Based Access Control (RBAC), HTML and CSS, TypeScript, Web Development Tools, Responsive Web Design, UI Components, User Interface (UI), Model View Controller, Data Validation, Software Testing, Dependency Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Node.JS, Web Development, HTML and CSS, Front-End Web Development, Web Servers, Cascading Style Sheets (CSS), Web Applications, Server Side, Javascript, Middleware, Back-End Web Development
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Responsive Web Design, Search Engine Optimization, Web Content Accessibility Guidelines, HTML and CSS, Web Design and Development, Web Analytics and SEO, Web Development, Javascript, Browser Compatibility
Intermediate · Guided Project · Less Than 2 Hours

Northeastern University
Skills you'll gain: Cascading Style Sheets (CSS), Responsive Web Design, Web Design, HTML and CSS, Web Content Accessibility Guidelines, User Interface (UI), Hypertext Markup Language (HTML), Front-End Web Development, User Interface and User Experience (UI/UX) Design, Javascript, Usability, Web Applications, Semantic Web, Data Validation
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Open Web Application Security Project (OWASP), Cyber Security Assessment, Exploitation techniques, Server Side, Application Security, Artificial Intelligence and Machine Learning (AI/ML), Vulnerability Scanning, Responsible AI, Data Security, Cyber Attacks, Security Awareness, Generative AI, Large Language Modeling, Personally Identifiable Information, Business Logic
Build toward a degree
Advanced · Course · 1 - 4 Weeks