Editor's pickURL parsingJavaScriptWeb developmentHTTP
How to Parse a URL: A Field-by-Field Guide
Learn how to parse a URL by identifying its scheme, host, port, path, query, and fragment, with JavaScript examples and common edge cases.
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Editor's pick
Website QAURL testing
A URL Comparison Workflow for Website QA
Learn a repeatable way to compare URLs for website QA. Review components, spot meaningful changes, and check encoding, slashes, and query parameters.
URL parametersWeb development
Why Duplicate Query Parameters Can Break Forms and Filters
Learn why duplicate query parameters behave differently across parsers, how to inspect repeated values, and how to test forms, filters, and APIs.
URL encodingEcommerce
How to Encode Special Characters in Product URLs
Learn to encode spaces, ampersands, and plus signs in product URL paths and query values, with JavaScript examples for variants and filters.
URL encodingJavaScript
Path Segments or Query Parameters? How to Encode User Input in URLs
Learn when user input belongs in a URL path or query parameter, how to encode each safely, and how to handle Unicode, reserved characters, and double encoding.
EcommerceProduct URLs
How to Create Shareable Product Links for Indian Online Stores
Learn how to build shareable ecommerce product URLs with stable variant links, clean tracking parameters, canonical tags, and a workflow for fixing broken links.