sitemap.xml
A `sitemap.xml` file is an XML file that helps search engines understand the structure of a website's content. It lists all the important pages and provides metadata about each URL.
Here’s a simple structure of a `sitemap.xml` file:
```xml
http://www.example.com/
2023-10-01
daily
1.0
http://www.example.com/about
2023-09-15
monthly
0.8
http://www.example.com/contact
2023-09-20
yearly
0.5
```
### Key Elements
- <loc>: The URL of the page.
- <lastmod>: The last modification date of the page.
- <changefreq>: How frequently the page is likely to change (e.g., daily, weekly, monthly).
- <priority>: The priority of the page relative to other pages on the site (0.0 to 1.0).
This file should be placed in the root directory of your website to be easily accessible by search engines.