I don't think so...We had owned the domains for several years and the bad links have just come up in webmaster tools recently.

Thanks! No we haven't hired anyone to do any backlink building for us in the past which is why were really curious to know how one of our domains got hacked (loyaltyexpo-europe.com) which isn't even active and had made thousands and thousands of backlinks to our main site loyalty360.org.

I was looking in GWT yesterday and found we have several thousand "spam" backlinks...I am curious why this happens and how this happens?

There are some links from websites/domains that are not mine that appear to be spam. However, we own a large group of domains and have noticed some of the links are coming from 2 of those sites/domains we own to my main site. The sites/domains are not active, we just own them. I am wondering how someone could access these domains that are not active and create spammy backlinks to my main website? (They created about 20,000 links).

Thanks.

By submit to webmaster tools, I meant submit the link so Google will not crawl it again.

Interesting - good to know! So even when we submit these links to Google Webmaster tools, that doesn't solve the problem, correct? Even if Google isn't crawling these links (eventually) will it still hurt SEO rankings overall?

Got it. So I guess we need to decide what makes sense work-load wise and what is best for the site. If we do 301 redirects, is that seen as more beneficial than an "engaging" 404 page that allows people to go to another page?

It seems like the 404 page would be one project where constantly adding in 301 redirects would be a lot of work.

Is there no way to just completely remove or delete a page/404 or it will always exist on some level?

When we ran the MOZ report it said we had more than a couple...probably around 50 or so. Our website has been around 5-6 years and I don't think we have ever done anything with any of them. With this many errors, what is your suggestion? Would it be faster to submit the link to Google Webmaster tools than waiting for them to be crawled again?

We are using Expression Engine. A lot of the links are within our own site - they are articles we once posted, but then we decided to close for one reason or another, and now they are throwing a 404 error. We don't necessarily have anything to redirect them to since they are mostly just random article pieces, which is why we were looking into deleting them completely.

Hi,

We recently ran the Moz website crawl report and saw a number of 404 pages from our site come back. These were returned as "high priority" issues to fix. My question is, how do 404's impact search ranking? From what Google support tells me, 404's are "normal" and not a big deal to fix, but if they are "high priority" shouldn't we be doing something to remove them?

Also, if I do want to remove the pages, how would I go about doing so? Is it enough to go into Webmaster tools and list it as a link no to crawl anymore or do we need to do work from the website development side as well?

Here are a couple of examples that came back..these are articles that were previously posted but we decided to close out:

http://loyalty360.org/loyalty-management/september-2011/let-me-guessyour-loyalty-program-isnt-working

http://loyalty360.org/resources/article/mark-johnson-speaks-at-motivation-show

Thanks!