Platform
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
Free to startRun a full report before you enter a card
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Marketing teamsProve AI search moves pipeline, not rankAgenciesUnlimited seats, white-label reportsEnterpriseSSO, audit trails and a security review
ResourcesBlogHow AI search behaves, in the fieldUniversityShort video lessons on AI search, freeDocsSet-up guides and the API referenceFree toolsCheck a prompt or a domain, freeCompareZeroRank against the alternatives
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Performance

Deprecated HTML Tags Checker

Scan your webpage for outdated HTML tags.

Deprecated HTML Tags Checker

About this tool

Detect deprecated HTML tags on your webpage that are no longer supported by modern browsers. Using outdated tags can cause rendering issues and indicate poor code quality to search engines.

HTML Minifier

Optimize HTML by removing excess code and whitespace.

MinifierOpen Inline CSS Checker

Identify inline CSS styles on your webpage.

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 are deprecated HTML tags?

Deprecated HTML tags are elements that are no longer recommended by the HTML specification, such as <font>, <center>, <marquee>, and <blink>. Modern browsers may still render them, but support could be removed at any time.

How do deprecated tags affect my website?

Using deprecated tags signals outdated code quality to search engines and can cause inconsistent rendering across browsers. Replace them with modern CSS alternatives for better maintainability and standards compliance.