Authentication, dynamic pages, headless browsers, and anti-bot bypass.
XPath for web scraping made easy: the best cheat sheets and quick references with syntax, axes, functions, and real extraction examples. Grab a reference.
What is API scraping and how does it work? Learn to pull data from web APIs with auth, pagination, and rate limits, and when to choose APIs over HTML scraping.
Web scraping with PHP cURL behind logins: handle cookies, hidden CSRF tokens, and JavaScript-protected forms to authenticate like a browser. Get the code.
Understand how cookies travel between browser and server and how to handle cookies in web scraping to keep sessions alive. Read the full guide with examples.
Learn to crawl a sitemap before scraping: find sitemap.xml, parse URL lists, handle index files and lastmod, and build an efficient crawl queue. With code.
Master CSS selectors for web scraping: classes, attributes, nth-child, combinators, and pseudo-classes with copy-paste examples. Grab the cheat sheet now.
Learn how distributed web scraping works: distributed file systems, MapReduce processing, and architecture tips for large-scale crawls. Read the full guide.
Learn how to edit and resend HTTP POST requests right in your browser with DevTools, a handy skill for debugging and web scraping. Try it out step by step.
Practical email validation regex patterns that actually work, from simple checks to RFC-aware rules, with examples in popular languages. Copy and test them.