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On-Page SEO

H1 Checker

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

H1 Checker

About this tool

Verify that your webpage has a properly configured H1 heading tag. The H1 is the most important heading on your page and plays a key role in SEO and content structure.

Header Tag Checker

Check that you are using Header Tags properly 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

How many H1 tags should a page have?

Best practice is to use exactly one H1 tag per page. It should clearly describe the page's main topic and ideally include your primary keyword.

Is the H1 tag the same as the title tag?

No. The title tag appears in browser tabs and search results, while the H1 tag is the visible main heading on the page itself. They can have similar content but serve different purposes.