---
title: "SEO | Blog | Phát Lâm"
url: https://phatdev.net/en/blog/c/seo
lang: en
updated: 2026-10-21
alternate:
  vi: https://phatdev.net/vi/blog/c/seo
markdown: https://phatdev.net/en/blog/c/seo.md
---

# SEO

Technical notes drawn from real projects: frontend, backend, AI, security, SEO, media and mobile apps.

## Posts

- [Making Your Website Readable for AI in 2026: What Is an Official Standard and What Is Only a Proposal](https://phatdev.net/en/blog/website-ready-for-ai-agents.md) (SEO | 2026-10-21 | 7 min read): An AI answers wrongly about your shop because it cannot read the policy page. A walk through robots.txt, structured data, llms.txt, Markdown pages, MCP Server Cards, AI Catalog and WebMCP, saying which are standards and which are proposals, with phatdev.net as the example.
- [Basic SEO for Online Shops: What Owners Can Do and What Needs a Developer](https://phatdev.net/en/blog/seo-basics-online-shop.md) (SEO | 2026-10-21 | 4 min read): Titles, descriptions, product names, images, Google Search Console and Google Business Profile: what an owner can do in one afternoon, and the technical part to hand to a developer.
- [How a Slow Website Costs You Customers, and a 5-Minute Speed Check](https://phatdev.net/en/blog/page-speed-and-sales.md) (SEO | 2026-10-21 | 5 min read): A slow site never shows an error, it just sends visitors away. How to use PageSpeed Insights in five minutes, read LCP, INP and CLS in plain words, and what you can fix yourself or hand to a developer.
- [Making Sure Google Sees Both Languages of Your Next.js Site](https://phatdev.net/en/blog/technical-seo-nextjs.md) (SEO | 2026-10-19 | 8 min read): A two-language site can stay invisible to Google over a few small missing lines. How to declare the main address, the language pair, the sitemap and structured data, plus the root-redirect trap.
- [From 95 to 99 on Mobile Speed: What I Did to a Next.js Site](https://phatdev.net/en/blog/core-web-vitals-99-case-study.md) (SEO | 2026-10-19 | 7 min read): A Next.js site's mobile speed score went from 95 to 99. The before and after numbers, each change, why the first 14.6 KB matters, and what didn't improve.

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