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AI visibility trackingWhere you show up, across every modelPrompt researchThe questions your buyers actually askAI search optimizationOn-page, off-page and technical fixesAgentic workflowsSet it once, it watches and briefs the fixMCP & REST APIBuild on top of ZeroRank dataCo-pilotAsk your data anything, in chatNew
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Marketing teamsProve AI search moves pipeline, not rankAgenciesUnlimited seats, white-label reportsEnterpriseSSO, audit trails and a security review
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Usability

Meta Viewport Tag Checker

Ensure the correct Meta viewport tag is in place.

Meta Viewport Tag Checker

About this tool

Verify that your webpage has a properly configured viewport meta tag for mobile responsiveness. This tag controls how your page scales on different screen sizes.

Tap Target Size Tester

Check if links and buttons are appropriately sized for touch.

URL checkOpen Font Size Checker

Analyze your website's font size and readability.

URL checkOpen Flash Test Tool

Check if your website has Flash content enabled.

URL checkOpen
No signup, no catch

What the free tools actually do

Seven of them run in the browser and ask for nothing. The eighth asks for a domain and an email, because it has to send you a report.

  • best AI visibility trackerDaily
    ChatGPT
    Gemini
    Perplexity
    Claude

    A real check, right now. Four models asked your question, with the answers they gave back.

  • Prompt ideas
    what is AEO2.4k
    best AEO tools1.1k
    AEO vs SEO860

    Prompt research, free. A sample of the ideas the paid research page ranks.

  • A crawler that only reads. It fetches your pages the way an AI crawler would and never writes.

  • Generators
    llms.txtGenerate
    FAQ schemaGenerate
    Article schemaGenerate

    Copy-paste output. llms.txt and schema markup you can paste straight into the page.

  • 30sto a visibility report on your domain

    Use it in the pitch. Screenshot it, export it. White-label and weekly is the paid plan.

Everything you're wondering

Or ask us anything at hello@zerorank.ai

What is the meta viewport tag?

The meta viewport tag (<meta name="viewport" content="width=device-width, initial-scale=1">) tells browsers how to scale your page on different screen sizes. It is essential for mobile-responsive design.

What happens without a viewport tag?

Without a viewport tag, mobile browsers render the page at a desktop width and then shrink it to fit the screen, making text unreadable and elements too small to tap. Google also penalizes sites lacking mobile responsiveness.