SEO & Web Content Tools
Broken Link Format Checker
Validate URL format and structure. Catch malformed links, missing protocols, and common mistakes.
Loading tool…
What is Link Check?
Broken or malformed links harm user experience and SEO. This tool validates URL syntax against RFC 3986 and catches common formatting mistakes.
How it works
We parse each URL against the standard URL spec, flagging issues like missing protocol, invalid characters, spaces, double slashes in path, and non-ASCII characters.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Realistic sample
Type or paste any realistic input — the tool computes the result locally and instantly.
Common mistakes
Expecting a server round-trip
Nothing is uploaded — every tool in this category runs entirely in your browser.