# CheckSEORank

> Free Domain Authority, Page Authority, Backlinks, and SEO Metrics Analysis Hub.

CheckSEORank provides real-time website authority checking, keyword difficulty diagnostics, backlink audits, and programmatic API access for SEO professionals, marketers, and developers.

## Core Online Tools
- [Domain Authority Checker](https://checkseorank.com/domain-authority-checker): Instantly analyze Moz DA, Page Authority (PA), and Spam Scores.
- [Bulk Domain Checker](https://checkseorank.com/bulk-checker): Query up to 10 domains simultaneously without an account.
- [Backlinks Explorer](https://checkseorank.com/backlinks-checker): Audit referral domains, link density, and dofollow vs. nofollow counts.
- [Keyword Difficulty Checker](https://checkseorank.com/keyword-difficulty-checker): Estimate search volumes and ranking difficulty.
- [Link Gap Analyzer](https://checkseorank.com/link-gap-checker): Compare backlink footprints between competing sites.
- [On-Page SEO Analyzer](https://checkseorank.com/on-page-analyzer): Scan title tags, meta tags, and document headings instantly.

## Developer Resources
- [API Documentation](https://checkseorank.com/api-docs): Developer endpoints to query bulk metrics programmatically.
- [API SDK Downloads](https://checkseorank.com/public/sdks/checkseorank-sdks.zip): Pre-packaged Python, Node.js, and PHP cURL wrapper SDKs.

## Industry Benchmarks
- [SEO Benchmarks Database](https://checkseorank.com/seo-benchmarks): Public statistics aggregating average Moz DA, DR, and TLD distributions across scanned domains.

## Comparison Hubs & Alternatives
- [Moz Pro Alternatives](https://checkseorank.com/alternatives/moz-pro): Compare DA checking parameters and free tools.
- [Ahrefs Alternatives](https://checkseorank.com/alternatives/ahrefs): Check Domain Rating (DR) and link footprints free.
- [Semrush Alternatives](https://checkseorank.com/alternatives/semrush): Compare Authority Scores and auditing capabilities.
- [Majestic Alternatives](https://checkseorank.com/alternatives/majestic): Audit link Trust Flow vs. Citation Flow values.
- [Ahrefs vs Moz Showdown](https://checkseorank.com/ahrefs-vs-moz): Head-to-head metric differences, crawler sizes, and accuracy.