Domain Tools
WWW vs Non-WWW Canonical Test
Check if www or non-www version is correctly set as canonical.
WWW vs Non-WWW Canonical Test
Compare HTTP/HTTPS and www/non-www variants and check the final URL + canonical tag.
Tip: A clean setup uses one canonical host + HTTPS with a single 301 redirect.
About WWW vs Non-WWW Canonical Test
Learn how to confirm your site has one preferred (canonical) domain version.
What this tool does
This tool compares your HTTP/HTTPS and www/non-www variants and checks the final destination and canonical tag. It helps you confirm search engines see one consistent preferred version.
Why it matters
If multiple versions resolve differently, link equity and rankings can be diluted. A clean setup uses one canonical host (www or non-www) with a single redirect to HTTPS and a matching rel=canonical.
Best practice
- Choose one canonical version (www or non-www).
- Redirect all other variants to the canonical version (usually 301).
- Make sure the rel=canonical matches the final URL.
FAQ
Should I use www or non-www?
Either can work. Pick one and keep everything consistent across redirects, canonicals, and internal links.
Do I need HTTPS?
Yes. HTTPS is the standard for security and SEO, and most browsers expect it.
What if my canonical tag is missing?
Add a rel=canonical tag to your pages, especially if your site can be reached from multiple URLs.
Related tools
Pro tip: pair this tool with Domain Authority Checker and Domain Age Checker for a faster SEO workflow.