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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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On-Page SEO

Header Tag Checker

Check that you are using Header Tags properly on your page.

Header Tag Checker

About this tool

Analyze your webpage's heading structure (H1-H6) for proper hierarchy and SEO optimization. Well-structured headings improve both accessibility and search engine understanding of your content.

H1 Checker

Check that you are using an H1 Tag on your page.

URL checkOpen Title Tag Checker

Optimize your HTML Title Tags for SEO.

URL checkOpen Keyword Density & Consistency Tool

Analyze your content to ensure optimal keyword usage.

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 correct heading tag hierarchy?

Headings should follow a logical order: H1 for the main title, H2 for major sections, H3 for subsections, and so on. Never skip levels (e.g., jumping from H2 to H4), as this confuses search engines and screen readers.

Do heading tags affect SEO?

Yes. Search engines use heading tags to understand the structure and topic of your content. Properly structured headings with relevant keywords help your page rank for target queries.