🌐 Website inspection and publishing tools

Inspect URLs and responses, review security headers and check a page before publishing.

Choose a task

Inspect URLs and HTTP responses

Check delivery and security signals

Prepare layout, sharing and discovery

Privacy and browser support

URL parsing and layout previews can run locally. Live HTTP, DNS and certificate checks contact network services and may send the URL or hostname to a server or resolver. Do not submit private links or credentials.

Common questions

Why can a live check fail for a working website?
Network restrictions, rate limits and the target server can prevent a check. A failed request from one tool is not proof that the site is down for every visitor.
Does a passing headers check mean my site is secure?
No. Headers are one signal. These utilities help inspect configuration; they do not replace a security assessment or guarantee search indexing.

Tool4U.net — free tools, built for privacy. Nothing is stored — files are deleted right after processing.

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