SEO & Technical Audit
SSL & Security Headers Checker: Check Your Website Security
An expired SSL certificate and missing security headers cost you visitor trust and open the door to attacks. Check both...
Blog
SEO Specialist
Chuyên gia SEO kỹ thuật với kinh nghiệm tối ưu Core Web Vitals và Google Search Console.
Posts by SEO Specialist
Guides
Meta Description Checker: How to Check & Fix Your Meta Descriptions
What a meta description is, the ideal 50–160 character length, common mistakes, and how to check meta descriptions for f...
SEO & Technical Audit
Redirect Chain Checker: How to Trace 301/302 Redirects
What a redirect chain is, why the wrong 301/302 dilutes rankings, and how to trace a redirect chain for free in seconds.
SEO & Technical Audit
Check Website Speed & How to Read Core Web Vitals
A guide to checking website load speed with a free tool and reading Core Web Vitals (LCP, CLS, INP) so you know what to...
SEO & Technical Audit
How to Check robots.txt & sitemap.xml Correctly
A guide to checking robots.txt and sitemap.xml correctly to avoid blocking Google by mistake and help your site get inde...
Google Search Console
Keyword Opportunities from GSC: Finding "Quick Wins" at 11–20
Mine Google Search Console data to find "quick win" keyword opportunities at positions 11–20 and optimize fast to reach...
Traffic Quality & Fraud
VPN/Proxy/Tor Traffic: Risks and How to Identify It
Distinguish VPN, proxy and Tor, understand why they raise fraud risk, and learn to identify them by context so you never...
SEO & Technical Audit
Core Web Vitals: How to Measure and Optimize LCP, INP, CLS
Understand the three Core Web Vitals (LCP, INP, CLS), their target thresholds and quick fixes that help both SEO and con...