Why are hyphens preferred over underscores in URLs?

Search engines treat a hyphen as a word separator but generally don't treat an underscore the same way, so "blue-shoes" is read as two words while "blue_shoes" may be read as one run-together word.

What counts as a "stop word" that should be avoided in a URL slug?

Common low-information words like "a," "the," "and" and "of" — removing them keeps URLs shorter and more focused on the meaningful terms.

Is there an ideal URL length?

Shorter, more readable URLs are generally preferred — there's no hard cutoff, but excessively long URLs are harder to read, share and remember.

Does URL SEO-Friendliness Checker upload my files to a server?

No. URL SEO-Friendliness Checker runs entirely in your browser using on-device processing, your files never leave your device.

URL SEO-Friendliness Checker

Check a URL for length, hyphens, stop words and other SEO-friendliness signals.

Runs in your browser

URL

About this tool

A URL's structure — its length, use of hyphens versus underscores, inclusion of unnecessary stop words — has a measurable, if modest, effect on both SEO and how trustworthy the URL looks to a human clicking it, and there's a specific set of best practices most people don't have memorized. This tool checks a URL against SEO-friendliness signals like length, hyphen usage and stop words, giving you a structured check instead of relying on general intuition about what makes a "good" URL.

Frequently asked questions

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