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ZeroUtil

SEO & Web Tools

Meta tag generators, SERP preview and SEO utilities

Google SERP Preview

Preview how your page appears in Google search results with character count indicators.

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Heading Structure Analyzer

Extract and visualize H1-H6 heading hierarchy with SEO issue detection.

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Hreflang Tag Generator

Generate hreflang link tags for multilingual websites with x-default support.

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Keyword Density Checker

Analyze word frequency with single words, bigrams and trigrams with density percentages.

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Meta Tag Generator

Generate complete HTML meta tags including Open Graph and Twitter Card tags.

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Open Graph Preview

Preview how your page looks when shared on Facebook and LinkedIn.

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Readability Checker

Free reading level checker and writing grade level analyzer. Flesch-Kincaid, Flesch Reading Ease, Gunning Fog and Coleman-Liau scores in one place.

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Robots.txt Generator

Generate robots.txt files with user-agent rules, allow/disallow paths and sitemap.

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Schema Markup Generator (JSON-LD)

Generate JSON-LD structured data for Article, FAQ, Product, Organization, LocalBusiness, HowTo, Recipe and Event.

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Article Schema Generator (JSON-LD)

Generate Article JSON-LD schema for blog posts, news pages and long-form guides.

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FAQ Schema Generator (JSON-LD)

Generate FAQPage JSON-LD schema for FAQ sections with Question and Answer nodes.

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Organization Schema Generator (JSON-LD)

Generate Organization JSON-LD schema with logo, contactPoint and sameAs for knowledge panel signals.

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Product Schema Generator (JSON-LD)

Generate Product JSON-LD schema with Offer, price, currency and AggregateRating for merchant listings.

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SEO Slug Generator

Generate SEO-friendly URL slugs with stop word removal and length control.

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SEO Word Counter

Count words, characters, headings, paragraphs with keyword density and reading level.

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Structured Data Validator

Validate JSON-LD structured data for correct context, type and required fields.

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Twitter Card Preview

Preview how your page looks when shared on Twitter/X with meta tag generation.

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XML Sitemap Generator

Generate valid XML sitemaps from a list of URLs with changefreq and priority.

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