Developer reference
URL and Query String Cheatsheet
URL anatomy, query string, UTM, encoding, and request snippet reminders for web workflows.
URL shape
A URL can include scheme, host, path, query, and hash.
https://example.com/path?key=value#sectionQuery pair
Query strings pass key-value parameters.
utm_source=newsletterEncoded space
Spaces are percent-encoded in URL components.
%20Fetch request
Browser JavaScript request shape for simple APIs.
fetch("https://example.com/api")