Keyword Density Checker API — Top Terms for Any URL

Keyword Density Analyzer

zerobreak/keyword-density-analyzer

Keyword density analyzer that fetches any URL and ranks 1-, 2-, and 3-word phrases by frequency and density — giving SEO teams instant on-page keyword insights to optimize content and avoid stuffing penalties.

Bulk analyze webpage keyword density and content metrics. Automate on-page SEO audits, extract top keywords, and compare competitor content easily.

🔍 Keyword Density Checker

easyapi/keyword-density-checker

🔍 A powerful SEO tool that analyzes webpage content to calculate keyword density and frequency. Perfect for content optimization, SEO analysis, and detecting keyword stuffing. Supports multiple URLs and provides detailed keyword statistics with precise density calculations.

Word cloud generator data API. Input: startUrls. Output: JSON per page with top terms and normalized weights, stopwords removed — ready to feed any word-cloud renderer or keyword analysis. Cheap pay-per-result: $0.01 per page scanned, no subscription.

Search Google SERP and analyze competitor density. Extract organic results, featured snippets, and ranking data. Lightweight alternative for quick market validation checks.

Similarweb Scraper

morph_coder/similarweb-scraper

Extract website traffic data, traffic source breakdowns, monthly visits, similar sites, WHOIS info, and on-page keyword density for any domain.

Extract all forms from a web page via API. Input: a page URL. Output: JSON per <form> with method, action, and full field list (name, type, required). Map a site's inputs for testing, QA, or automation. Pay per result: $0.01 per page scanned.

Turn any public PDF URL into clean text and metadata. Per-page output, batch processing, and a synchronous API mode for AI agents. Pay per page extracted, cheaper than the alternatives.

Analyze any website for SEO, content quality, and performance. Get meta tags, heading structure, keyword density, image alt coverage, and actionable recommendations.

Structured data extraction API. Input: startUrls. Output: JSON per page with every JSON-LD block, Microdata (itemscope) entity, and RDFa entity normalized with schema.org types and properties. Pay-per-result: $0.02 per page scanned, no subscription.