Best free tools for website comparison
Use these utilities when you need a clear SEO compare between your site and competitors, or before publishing pages you want to rank.
Google SERP Preview
See how your title and description render on Google desktop, mobile, and as a social card - with real pixel-width truncation.
Core Web Vitals Checker
Real Core Web Vitals from Google PageSpeed Insights - LCP, INP, CLS, FCP, TTFB. Lab + field data, mobile + desktop.
SEO + AI Search Checklist
A modern 50-item SEO checklist covering technical, on-page, content, and AI-search (GEO) - with progress saved in your browser.
Keyword Density Checker
Analyze keyword frequency and density in your content - single words, 2-word, and 3-word phrases with stop-word filtering.
Domain Rating Checker
Check any domain's Ahrefs Domain Rating (DR) - a 0–100 score of backlink profile strength.
AI Search Lab
AI Visibility Report
Compare how AI engines mention your brand for category prompts.
Keyword rankings: what to compare first
Strong keyword rankings start with clear intent. Compare title and meta snippets in SERP Preview, measure on-page focus with Keyword Density, then validate technical health with Core Web Vitals and robots.txt.
Tracking keyword rankings in Japan and other markets needs clean hreflang, localized titles, and consistent entity signals. Use the Hreflang Generator plus Schema Markup Generator before you publish international pages.
When you are ready to go beyond one-off website comparison, run a free SEOitis analysis for keyword opportunities and AI search readiness.
FAQ
- What is SEO compare?
- SEO compare means evaluating websites, keywords, and technical signals side by side. SEOitis gives you free tools to compare SERP snippets, domain rating, Core Web Vitals, keyword density, and AI search visibility.
- Can I do website comparison for free?
- Yes. Use Domain Rating Checker, SERP Preview, Core Web Vitals, and AI Visibility Report without a credit card. For a full crawl-based report, start with Analyze free.
- How do I track keyword rankings?
- Start with Keyword Density Checker for on-page targeting, then run Analyze free for opportunity keywords. SEOitis Growth plans add ongoing keyword rankings tracking across markets, including Japan and global locations.
- Is SEOitis the same as SEO IT?
- SEOitis (often searched as SEO IT) is an AI SEO platform plus a free toolkit. Use it to compare sites, improve rankings, and publish content that wins in Google and AI answers.