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Google indexed some subdomains (13!) that were never supposed to exist, but apparently returned a 200 code when Google somehow crawled them. I can get these subdomains to return a "server not found" error by turning off wildcard subdomains at my DNS. I've been told that these subdomains will be deindexed just from this server not found error. I was going to use Webmaster Tools and verify each domain, but I'm on an economy goDaddy server and apparently subdomains just get forwarded to a directory, so subdomain.domain.com gets redirected to domain.com/subdomain. I'm not even sure with this being the case, if I can get WMT to recognize and remove these subdomains like that. Should I fret about this, or will the "server not found" message get Google to remove these soon enough?

Hi all, I'm trying to determine why my site (surfaceoptics.com) ranks so much lower than my competitor's sites. I do not believe the site / page content explains this differential in ranking, and I've done on-site / on-page SEO work without much or any improvement. In fact I believe my site is very similar in quality to competitor sites that rank much higher for my target keyword of: hyperspectral imaging. This leads me to believe there is a technical problem with the site that I'm not seeing, or that the answer lies in our backlink profile. The problem is that I've compared our site with 4 of our competitors in the Open Site Explorer and I'm not seeing a strong trend when it comes to backlinks either. Some competitors have more links / better backlink profiles but then other sites have no external links to their pages and lower PA and DA and still outrank us by 30+ positions. How should I go about determining if the problem is backlinks or some technical issue with the site?