Massive increase in Moz crawl.

[danwebman]

I have a subdomain which has just started to be crawled by Moz, Previously this wasn't the case.

The sub-domain had 16,000+ issues. Why has Moz started to count sub-domains as part  of the main domain, has Google started to do this aswell?

[Moz.HelpTeam]

Hi Dave!

Thanks for reaching out! My name is Anne, and I helping the Mozzer Alliance today! There could be a few different reasons we've just started crawling this subdomain:

1. Did you recently link this subdomain to your site differently? Our crawler starts with your home page and uses recursive crawling to find pages on your site through the links we find. This could explain why we just started crawling the subdomain.

2. Did you change your robots.txt for this subdomain? Our crawler, Rogerbot, follows robots.txt. If you edited this site recently, this could also explain why we just started crawling your subdomain.

I hope this helps! If you have more questions, please reach out to the help team at https://moz.com/help/contact. From there we can help you troubleshoot what's going on, but keep your campaign details off the interwebz.

Have a great weekend!

Anne