Question 1

Is this free website SEO checker really free?

Accepted Answer

Yes. You can run SEO audits without signing up. Some external APIs may rate-limit heavy use unless you add your own API keys.

Question 2

What does the SEO health score measure?

Accepted Answer

The score combines on-page factors such as title, meta description, headings, content depth, and image alt text with technical signals like HTTPS, canonical, robots, sitemap, and indexability.

Question 3

Can this tool replace Ahrefs or Semrush?

Accepted Answer

No. Yuki SEO Tools is a fast free checker for on-page SEO, technical basics, performance, and lightweight authority signals—not a full commercial SEO suite.

Question 4

What are Core Web Vitals and why do they matter?

Accepted Answer

Core Web Vitals reflect loading and stability metrics such as LCP and CLS. Improving them supports better user experience and can influence search performance.