Learn how the web works step by step. Understand clients and servers, URLs, DNS, IP addresses, HTTP and HTTPS requests, status codes, and how browsers render HTML into web pages. Beginner-friendly guide.
Learn the HTML form action attribute: where a form sends its data, absolute and relative URLs, what happens when action is left out, the GET query string trap, formaction on buttons, the target attribute, third-party form services, mailto actions, progressive enhancement with fetch, and security notes on HTTPS, CSRF, and the Content-Security-Policy form-action rule.
Learn the HTML form method attribute: how GET puts data in the URL and POST sends it in the request body, when to use each one, URL encoding, the post-redirect-get pattern, method dialog, why HTML forms cannot send PUT or DELETE, CSRF and privacy notes, and how to choose the safe method for search, login, and checkout forms.