What is indexing?

Indexing is the process by which a search engine saves a site's pages into its database (index), so that it can later show them in search results.

---

#How it happens:

1. A crawler (bot) visits the site - scans HTML, CSS, content, links.
2. Extracts important information - headings, text, meta tags, structure.
3. Adds the page to the index - that is, saves it into its search database.
4. On the next search query - it searches not the internet, but its own index.

---

#Why this matters:

As long as a page is not indexed, it cannot appear in the results. A site may exist but be "invisible" to Google.

---

#What affects indexing:

• The presence of a link to the page (internal or external)
• robots.txt and the noindex meta tag
• Site loading speed and availability
• Structure and sitemap (sitemap.xml)
• Duplicate content

---

Conclusion: Indexing is like adding a book to a library catalog. Until it's there, no one will find it.