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Have a look at this: http://www.seomoz.org/blog/what-is-googles-pagerank-good-for-whiteboard-friday   - great explanation of what page rank is. As Rand says, page rank is a very small part of Google's algorithm and shouldn't be used to judge the value of a link prospect. Page and domain authority, on the other hand, are far better metrics to consider. PA & DA alone can't be used to determine whether or not the site is dodgey. However, a score of 1 suggests that a link from this website is not going to be particularly valuable. You can do better. (It is possible that Open Site Explorer hasn't crawled their site recently and could be a little bit out of date. Their actual DA may not be exactly 1, but is unlikely to be far off)

Hey guys! Keri is right - we have done some updating with our crawler and this index represents the newest version - unfortunately with a few hiccups. People seem to be seeing two issues with this new index - link counts and domain authorities are going up or down considerably and there is an increase of "questionable" inbound links. Both issues are due to the same root cause: our new crawler is built to be fresher, but it is going deeper into domains, and, unfortunately not visiting as many domains. Domains with a high MozRank are getting crawled deeper, but domains with middle to lower MozRanks are not getting crawled. Our top priority now is to get the domain diversity back up to or better than that of our last update as was originally designed. It's fixable and we will be focusing all efforts on this. Previous crawling worked by selecting a list of the top MozRank URLs (around 10B) and then crawling one page from each of them. Now we are crawling links as we discover them, and crawling high MozRank sites daily, weekly or monthly. The advantage of the new crawlers is we are crawling all the time and so we will have fresher data. As links are added, we are much more likely to discover these deeper links. The new crawl had 59B urls, a lot more than the previous 42B, however, more of these links are from the same domain. The reason for the "questionable" links is due to the fact that the crawler is reaching deeper into the domains where there are more download links. We are currently looking into fixing this so these won't be counted as links. We'll let you know as soon as that issue is resolved! We are really sorry for the inconvenience. Once we have this new crawler dialed it will provide much fresher and higher quality data!! Thanks, Carin

You are correct, those sites do show but only when you are searching for those domains.  I'm not seeing a sitemap.xml file, but that would be strongly recommended.  Google does support sitemap indexes, which would be perfect for you in this situation!  You'll need to submit a separate sitemap for each language, and there you can identify the root/home page for each one. http://www.threebit.com/blog/seo/sitemaps-and-multilingual-websites.html You need to communicate to Google where your /es and /de are residing.  Having sitemaps in place for each of those roots would be best.  Further, if you are defaulting to English, you should probably have your root domain point to the English site (/en) since the root and the /en are essentially the same page. And yes, the root domain does have a language code in the head.  

Sounds like more of a user issue than an SEO issue really. Personally I would let them choose. You don't know what language someone is going to prefer. I'd go for the root domain.

Excactly what I was looking for.  Thanks.