Metadata is operational data
SEO metadata should not be a final manual cleanup. Each page needs title, description, share image, canonical, hreflang and suitable schema inside the CMS or layout.

Bilingual pages need correct hreflang
For Web Delivery Lab, Vietnamese is the source language and English is the translation. Each resource article needs a matching version so the switcher, canonical and sitemap stay aligned.

Fast checklist
- Titles should not duplicate across pages.
- Descriptions should describe the page without keyword stuffing.
- Canonical should point to the real rendered URL.
- Hreflang should include vi/en and x-default.
- Structured data should match the page type.








