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Hướng dẫn SEO dễ hiểu: thu thập dữ liệu, nội dung, liên kết, tốc độ, dữ liệu có cấu trúc và tìm kiếm AI.
7 thg 8, 2026 · 8 phút đọcInternational SEO for Beginners: How to Take a Site Global
New to international SEO? Learn how to choose markets, structure URLs, set up hreflang, localize content and measure results, step by step and in…
7 thg 8, 2026 · 8 phút đọcHeading Structure for SEO: How to Use H2 to H6 Properly
How to build a clean heading hierarchy with H1 to H6: rules, wording tips, examples by page type, common template mistakes and how to…
6 thg 8, 2026 · 7 phút đọcNoindex vs Disallow: How to Keep Pages Out of Search
Noindex and robots.txt Disallow solve different problems. Learn which removes pages from search, which saves crawl time, and why combining them backfires.
6 thg 8, 2026 · 7 phút đọcWhy AI Crawlers Miss JavaScript Content and How to Fix It
Many AI crawlers read only raw HTML and never run JavaScript. Learn how to test what they see and which rendering fixes make your…
6 thg 8, 2026 · 8 phút đọchreflang Language and Region Codes: A Practical Reference
Use the right hreflang codes: ISO 639-1 languages, ISO 3166-1 regions, en-gb not en-uk, and how to handle Chinese, Norwegian and Spanish for Latin…
5 thg 8, 2026 · 8 phút đọcImage Alt Text: How to Write It for SEO and Accessibility
How to write image alt text that helps screen reader users and search engines: examples, decorative and linked images, and how to audit alt…
5 thg 8, 2026 · 7 phút đọc301 vs 302 Redirects: Which One to Use and When
301, 302, 307 and 308 redirects explained in plain words: what each tells search engines, when to use which, and the redirect mistakes that…
5 thg 8, 2026 · 8 phút đọcGoogle AI Overviews: How Sources Are Chosen and How to Be One
How Google AI Overviews pick the pages they link to, what Google says about optimising for them, and practical steps to become a cited…
5 thg 8, 2026 · 8 phút đọchreflang Return Links: How to Fix “No Return Tags” Errors
A missing hreflang return link makes search engines ignore your language annotations. Learn why return tags break, how to find them and how to…
4 thg 8, 2026 · 8 phút đọcH1 Tag Best Practices: One Clear Heading Per Page
How to use the H1 tag well: one clear heading per page, how it relates to the title tag, common template mistakes and how…
4 thg 8, 2026 · 7 phút đọcRedirect Chains and Loops: How to Find and Fix Them
Redirect chains slow pages and waste crawl time; loops break them entirely. Learn how they form, how to find every one on your site…
4 thg 8, 2026 · 8 phút đọcHow to Allow or Block AI Crawlers in robots.txt
A practical guide to AI crawler rules in robots.txt: which bots train models, which power AI search, and copy-ready patterns to allow or block…