DNS utility

Domain Resolution Checker

Verify the four common URL variants before launch, migration, DNS edits, or SSL cleanup. Check HTTP, HTTPS, root, and www in one pass.

Checked

0

Resolve

0

Redirect

0

Fail

0

HEAD requests follow redirects and report the final resolved URL when it differs.

Domain to check

Paste a bare domain or any URL from the site. The checker normalizes it and tests the canonical variants.

Variants tested

http://example.com
https://example.com
http://www.example.com
https://www.example.com

Resolution report

Use this to catch broken www handling, missing HTTPS support, expired redirect paths, or DNS changes that only work for one variant.

No domain checked yet

Enter a domain and run the check to see which URL variants resolve, fail, or redirect.