Choose three statements referring to XML sitemaps that are true:

1. XML sitemaps must only contain URLs that give a HTTP 200 response
2. It is recommended to use gzip compression and UTF-8 encoding
3. There can be only one XML sitemap per website
4. XML sitemaps should usually be used when a website is very extensive
5. It is recommended to have URLs that return non-200 status codes within XML sitemaps

Correct Answer:

• XML sitemaps must only contain URLs that give a HTTP 200 response
• It is recommended to use gzip compression and UTF-8 encoding
• XML sitemaps should usually be used when a website is very extensive