Luminus

Keyword Density Checker

Count the top words and phrases in pasted text, with percentages.

Understand your result

Not sure what the numbers mean? Echo reads your result and explains it in plain words — then suggests a sensible next step.

Description

The Keyword Density Checker is a technical SEO and marketing utility that generates the exact markup, metadata files, and structured data search engines and social platforms need to index, display, and rank your pages correctly. Whether you are building JSON-LD schema for rich results, crafting optimized meta title and description tags, generating Open Graph and Twitter card markup for social sharing previews, producing a correctly formatted robots.txt or XML sitemap, assembling hreflang tags for international targeting, or constructing UTM-tagged campaign links for analytics tracking, this tool outputs valid, copy-paste-ready code that complies with Schema.org specifications and current search-engine guidelines. A live SERP snippet preview lets you see exactly how your title and description will appear in Google results before you publish, helping you catch truncation issues and refine click-through appeal. Keyword density analysis flags over-optimization risks. Redirect rule builders cover 301 and 302 patterns for URL migrations. Every output is generated locally inside your browser — your page URLs, titles, descriptions, and site architecture details are never sent to any external server, which is important when working with pre-launch content or competitive SEO data. The tool is designed for SEO specialists building technical audits, content marketers optimizing blog posts, web developers implementing structured data for the first time, digital agency teams generating consistent metadata across client sites, and business owners who want properly formatted tags without hiring a consultant. There are no account requirements, no watermarks, no daily generation limits, and no advertising. Generate as many tags, sitemaps, and schema blocks as your site requires with total confidence in both the output validity and your data privacy.

How to use

  1. Paste your text, URL, or metadata tags into the editor area.
  2. Configure formatting settings or target tags if options are available.
  3. Review the real-time previews or structural validation results.
  4. Copy the optimized meta tags, code snippets, or configuration files.

Why use this tool?

Search engine optimization and structured metadata drive click-through rates. The Keyword Density Checker simplifies technical tasks, helping you build error-free tags and inspect snippet previews immediately.

Features

  • Generates search-engine compliant tags and metadata.
  • Provides live visual previews of search results or social cards.
  • Client-side generation protects your technical site architectures from telemetry.

Frequently asked questions

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