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Howdy, The big question is whether or not these links are actually "unnatural." If they are there because of overly-aggressive social booking marking, they may be considered unnatural and you may consider removing them. Unfortunately, search engines never tell us exactly what links are bad or which are good. Social bookmarking links aren't necessarily good or bad by themselves, but often it depends on the anchor text - lots of exact match anchor text is usually a sign of unnatural linking. Paddy Moogan wrote a good post on finding low-quality links that I highly recommend: http://www.stateofsearch.com/step-by-step-guide-finding-low-quality-links/ Wish I could tell you one way or another to remove and/or disavow those links, but there's never an easy answer. -cyrus

Hey, Glad to hear it worked out Mark

Check : http://www.zen-zen.info/festival-de-silence-3eme-edition/ Useless website; webmasters post cheap content to get a link. No social engagement, ads everywhere... Even if the DA is 44, just forget this kind of website for guest posts.

Just want to agree with both @Karl and @Glen - you can disavow the domain, but I'd also reach out directly to Blogpost, as they're your best bet for a takedown. Past that, you could file a DMCA request. Honestly, though, if you're just talking about one obviously bad site on Blogspot, your risk is pretty low here. There are bad sites out there, and Google knows it. Until you've got a pattern of bad links, they're not going to penalize you for something you can't control (the vast majority of the time, at least).

There's no way to reverse proxy and hide that sub-domain? Ideally, a CDN for content itself would never be seen by the crawlers. If people are going to actually see this sub-domain and potentially link to it, then you're probably going to have to use cross-domain canonical. That's not an ideal solution, though - ideally, the CDN should be invisible to Google and visitors.

Again thank you so much Dr. Peter for that explanation. It's really worth. Yes, I can understand what you said. I have combined thespicygadgematics.com, to AandroidGadgematic, because I don't have enough time to update two blogs. That's why I do it. There's no any penalty for the TSG blog.

Thank you so much Chris Menke, now my home page again indexed by the Google. You are the best!

Thank you Thomas Zickell! I don't think those bookmarking sites are spammy. Some of them are Stumbleupon, folkd, shetoldme, ezyspot. I have one more question. When I'm getting backlinks from the similar blogs, should I use my root domain or relevant posts? Thanks!

No worries! It's a question that often comes up. I found I was answering it by typing out long answers each time so I wrote the Moz post specifically for this type of question.    It's good to have as a reference and it's understandable that you may not have found it. Glad to help!