The site dojotoolkit.org is not online for several days …
Can you see the API documentation on some other page ?
Do you know if it is going to be solved?
Some people are experiencing issues with the site. In the meantime I would suggest visiting the cached version via http://web.archive.org.
We had a DNS outage out of our control that lasted several days. The site is back up now, along with documentation and related subdomains. If you are still experiencing issues, please let me know so I can look into it.