sitemap.xml
A `sitemap.xml` file is used to inform search engines about pages on your site that are available for crawling. Here’s a basic structure of a `sitemap.xml` file:
```xml
http://www.example.com/
2023-10-01
monthly
1.0
http://www.example.com/about
2023-09-15
yearly
0.8
http://www.example.com/contact
2023-08-20
yearly
0.5
```
In this example:
- <url>: Defines a URL entry.
- <loc>: The location of the page.
- <lastmod>: The last modified date of the page.
- <changefreq>: How frequently the page is expected to change.
- <priority>: The priority of the page relative to other pages on the site.
Ensure that your `sitemap.xml` is accessible at `http://www.example.com/sitemap.xml` and submitted to search engines like Google for better indexing.