# SEO／AEO／GEO 實戰筆記 / SEO / AEO / GEO Field Notes

> SEO、AEO、GEO 繁體中文學習筆記：結構化資料、hreflang、Core Web Vitals、AI 爬蟲與 llms.txt，每篇都附本站實作示範與免費 SEO 健康檢查工具。
> Hands-on notes on SEO, AEO and GEO: structured data, hreflang, Core Web Vitals, AI crawlers and llms.txt — each technique demonstrated on this site, plus a free SEO health check tool.

Author: LanDi. Full text of every article: https://seo-aeo-geo-notes.pages.dev/llms-full.txt

## 文章（繁體中文）
- [SEO 基礎：搜尋引擎怎麼讀懂一個網頁](https://seo-aeo-geo-notes.pages.dev/articles/seo-basics/): SEO 是讓搜尋引擎「爬得到、看得懂、願意排前面」。最基本的功課是每頁有獨特的 title 與 description、一個 H1、正確的 canonical，並用內部連結把頁面串起來；其餘的一切都建立在「內容真的有用」之上。
- [結構化資料 JSON-LD：讓機器確定你在說什麼](https://seo-aeo-geo-notes.pages.dev/articles/structured-data/): 結構化資料是用 schema.org 詞彙、以 JSON-LD 格式寫在頁面裡的「機器可讀說明書」，明確告訴搜尋引擎與 AI 這頁是文章還是產品、作者是誰、何時更新。它是取得複合式搜尋結果的前提，也讓 AI 更有把握引用你。
- [AEO 答案引擎優化：讓你的內容直接成為答案](https://seo-aeo-geo-notes.pages.dev/articles/aeo/): AEO 是讓內容能被搜尋引擎或 AI 直接擷取為答案的優化方法。核心寫法是用使用者真正會問的問題當小標題，緊接一段 40 到 60 字的直接答案，再用清單或表格展開細節。
- [GEO 生成式引擎優化：讓 ChatGPT、Perplexity 引用你](https://seo-aeo-geo-notes.pages.dev/articles/geo/): GEO 是讓生成式 AI（ChatGPT、Perplexity、Gemini、Claude）在回答時引用你的優化方法。前提是 AI 爬蟲讀得到你的內容（robots.txt 不擋、內容不靠 JavaScript 產生），再來是內容值得被引用：具體數據、權威來源、清楚的作者與更新日期。
- [多語系 SEO 與 hreflang：同一篇文章的中英文版本怎麼共存](https://seo-aeo-geo-notes.pages.dev/articles/hreflang/): hreflang 是告訴搜尋引擎「這頁有哪些語言版本」的標籤，讓搜尋者看到自己語言的版本。每個版本都必須列出包含自己在內的所有版本（雙向互指），語系代碼要用 ISO 格式（例如 zh-TW、en），並加上 x-default 當作預設。
- [Core Web Vitals：網站速度怎麼量、怎麼改](https://seo-aeo-geo-notes.pages.dev/articles/core-web-vitals/): Core Web Vitals 是 Google 衡量使用者體驗的三項指標：LCP（最大內容繪製）應低於 2.5 秒、INP（互動到下一次繪製）應低於 200 毫秒、CLS（累計版面配置位移）應低於 0.1，以 75% 的真實造訪達標為準。它是排名訊號之一，但比重低於內容相關性。
- [上線後怎麼量測成效：Search Console、Bing 與 AI 引用追蹤](https://seo-aeo-geo-notes.pages.dev/articles/measure/): 上線後分三層驗證：頁面本身正確嗎（健康檢查、複合式搜尋結果測試）、搜尋引擎收錄了嗎（Google Search Console 與 Bing Webmaster Tools 的收錄與成效報表）、AI 引用了嗎（定期拿固定問題問 ChatGPT 與 Perplexity，並觀察來自 AI 平台的轉介流量）。

## Articles (English)
- [SEO Basics: How Search Engines Understand a Web Page](https://seo-aeo-geo-notes.pages.dev/en/articles/seo-basics/): SEO means making your pages crawlable, understandable, and worth ranking. The basics are a unique title and description on every page, a single H1, a correct canonical, and internal links that tie your pages together. Everything else rests on content that is genuinely useful.
- [Structured Data with JSON-LD: Tell Machines What You Mean](https://seo-aeo-geo-notes.pages.dev/en/articles/structured-data/): Structured data is a machine-readable description written into the page in JSON-LD format using the schema.org vocabulary. It tells search engines and AI explicitly whether a page is an article or a product, who wrote it, and when it was updated. It is a prerequisite for rich results, and it gives AI more confidence to cite you.
- [Answer Engine Optimization (AEO): Become the Direct Answer](https://seo-aeo-geo-notes.pages.dev/en/articles/aeo/): AEO is the practice of optimizing content so search engines or AI can extract it directly as an answer. The core technique is to use the questions users actually ask as subheadings, follow each one immediately with a 40–60 word direct answer, and then expand on the details with lists or tables.
- [GEO: Getting ChatGPT and Perplexity to Cite Your Content](https://seo-aeo-geo-notes.pages.dev/en/articles/geo/): GEO is the practice of optimizing so that generative AI (ChatGPT, Perplexity, Gemini, Claude) cites you in its answers. The prerequisite is that AI crawlers can read your content (not blocked in robots.txt, not generated by JavaScript). After that, the content has to be worth citing, with concrete data, authoritative sources, and a clear author and update date.
- [Multilingual SEO & hreflang: One Article, Two Languages](https://seo-aeo-geo-notes.pages.dev/en/articles/hreflang/): hreflang is a tag that tells search engines which language versions a page has, so searchers see the version in their own language. Every version must list all versions including itself (return links in both directions), language codes must use ISO format (for example zh-TW, en), and an x-default should be added as the fallback.
- [Core Web Vitals: How to Measure and Improve Site Speed](https://seo-aeo-geo-notes.pages.dev/en/articles/core-web-vitals/): Core Web Vitals are Google's three user-experience metrics. LCP (Largest Contentful Paint) should be under 2.5 seconds, INP (Interaction to Next Paint) under 200 milliseconds, and CLS (Cumulative Layout Shift) under 0.1, measured at 75% of real visits. They are one ranking signal, but they carry less weight than content relevance.
- [Post-Launch Measurement: Search Console, Bing & AI Citations](https://seo-aeo-geo-notes.pages.dev/en/articles/measure/): After launch, verify in three layers: Is the page itself correct (health check, Rich Results Test)? Have search engines indexed it (the indexing and performance reports in Google Search Console and Bing Webmaster Tools)? Is AI citing it (regularly ask ChatGPT and Perplexity a fixed set of questions, and watch referral traffic from AI platforms)?

## Tools
- [SEO 健康檢查](https://seo-aeo-geo-notes.pages.dev/tools/seo-check/)
- [SEO Health Check](https://seo-aeo-geo-notes.pages.dev/en/tools/seo-check/)