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 simple structure of what a `sitemap.xml` might look like:
```xml
http://www.example.com/
2023-10-01
daily
1.0
http://www.example.com/about
2023-10-01
monthly
0.8
http://www.example.com/contact
2023-10-01
yearly
0.5
```
In this example:
- <url>: Represents a single URL entry.
- <loc>: Specifies the location of the URL.
- <lastmod>: Indicates the last modification date of the URL.
- <changefreq>: Suggests how frequently the content at the URL is likely to change.
- <priority>: Indicates the priority of the URL relative to other URLs on your site.
This structure helps search engines to better understand the hierarchy and updates of your website.