What you’ll need
A public URL, optionally a separate mobile URL.
SEO TOOL · FREE TO USE
Mobile-First Comparison
Compare mobile and desktop content and SEO signals.
Free to use · No saved inputs01Mobile SEO workspace
- 1 Add your input
- 2 Run the tool
- 3 Get your results
A public URL, optionally a separate mobile URL. New here? Start with “Try an example”.
More settings (optional)
The URL and chosen crawler/language settings reach our inspection server, which contacts the target website. No login pages, credentials or private-network addresses are supported. Inputs and results are not stored.
Public target inspection · No paid API
How it works
Render at mobile and desktop viewports and compare metadata, links, images, headings and JSON-LD.
Know the limits
Observed parity does not confirm indexing. Viewport-based audits cannot reproduce every device or Google crawler.
GET FROM A QUESTION TO A NEXT STEP
Spot content lost between mobile and desktop
A mobile redesign can remove much more than a sidebar. Important copy, internal links, image information or structured data can disappear when a page switches layouts. This mobile-first comparison puts two rendered views beside each other. Use it after responsive template changes or when a separate mobile URL seems to contain less useful information than the desktop version.
How to use Mobile-First Comparison
Enter the public page URL. If the website uses a separate mobile page, supply the corresponding mobile URL rather than an unrelated landing page.
Run the comparison and inspect headings, links, images, metadata and structured data in both views. Read the screenshots alongside the extracted counts.
Prioritize missing primary content and conflicting directives. Recheck the same page after a template fix to confirm the change.
What do the results mean?
Matching counts do not prove the content is equivalent, and different counts are not automatically harmful. A collapsed navigation or alternative layout can change the DOM legitimately. Focus on information that users need and verify whether an incomplete render explains the difference.
What to do next
Run the Mobile-Friendly Test for layout measurements and Fetch & Render for a closer source-versus-rendered investigation.
Keep the scope in mind
Observed parity does not confirm indexing. Viewport-based audits cannot reproduce every device or Google crawler.
Common questions about Mobile-First Comparison
Does this confirm mobile-first indexing?
No. It compares observed mobile and desktop content. It cannot inspect Google’s index or certify how a specific URL is processed there.
Should mobile and desktop HTML be identical?
No. Responsive layouts can differ. Review whether essential content, relevant links and meaningful metadata remain available instead of forcing byte-for-byte equality.