You can check if a requested URL is, or is not, a file by using <conditions><add type="IsFile" negate="true"/></conditions>, but if you are more familiar with Apache syntax, you can use the Import Rules features and type the Apache rules and then we'll do our...

During maintenance I would like to display a 503 error page on every request without a redirect. I'd like to use this solution because of the handling by google bots. I do know it is possible with apache by altering the htaccess file (although this is something I learnt from the internet and I didn't...