Symptom
A created site audit fails and the following error message is displayed as a tooltip on the site audit:
"The start URL could not be retrieved and/or analyzed."
Cause
An unreachable domain was specified when the onpage analysis was created.
Solution
When setting up an onpage analysis, enter a domain that can be reached from the Internet and try the following steps
make sure https Version is crawled, not the http version
try to use a different start URL like www.domain.de/this-directory/
change settings for crawl scope to "all subdomains"
set robots to be ignored in the advanced settings