10,000+ links from one site per URL--is this hurting us?

[nicole.healthline]

We manage content for  a partner site, and since much of their content is similar to ours, we canonicalized their content to ours.

As a result, some URLs have anything from 1,000,000 inbound links / URL to 10,000+ links / URL --all from the same domain.

We've noticed a 10% decline in traffic since this showed up in our webmasters account & were wondering if we should nofollow these links?

[Dr-Pete]

Unfortunately, it is very situational and tough to tell without seeing the sites. I tend to agree with Marcus that it generally makes me a little nervous, but Zachary is right - sitewide links aren't necessarily bad. They just tend to be associated with quality issues, especially on large scale. Still, one site is one site. Worst case, those links are probably just being devalued (in other words, Google is turning down the volume on them).

If you're sharing content across the two sites, you might want to try a cross-domain canonical tag instead. It really depends on the degree of the duplication. Still, a link bank from each piece of content to the original content is generally a good idea.

Any sitewide links, like footer links, on top of that, are probably very low value. Whether I'd remove, nofollow, or leave them alone, though, really depends a lot on the quality and the relationship between the two sites.

[Marcus_Miller]

Is it a link or is it a canonical? If it is a link to the canonical then I would not imagine it is going to help anyway but personally, I would try to have high quality links and not these mass link bombs, it's just asking for trouble and you won't get 100,000 links worth of benefit anyway.

As ever, hard to be precise without seeing the site in question but... I would edge towards no follow here.

[nicole.healthline]

Hi Marcus,

Yes, so, basically, it is 1 million links to one URL, and other URLs have 10,000+ links. This happened because they use our content, and we canonicalized all of their content to us.

In most cases, the anchor text is the same throughout.

It is a reputable domain that is linking to us.

Should we no-follow these links? It would be quite difficult to remove them all-together.

[deltasystems]

You're essentially asking if sitewide links are OK. Yes, they are.

Marcus makes a good point: if any of the pages are poor in quality, you'll notice a decline in value. Your priority should be ensuring all of the pages are high in quality, or at the least noindexed. The problem with WPMU was that they can't control the quality, so they just took the links out. Sounds like you are in a position to keep the links, but do a bit of cleanup.

[Marcus_Miller]

Hey Michelle

Just to clarify, are you saying that you have some sites with like a million pages and that these sites have a footer or template link to another site?

If so, this might be an interesting read:

http://www.seomoz.org/blog/how-wpmuorg-recovered-from-the-penguin-update

I am not 100% clear here so as ever, examples would be useful but I really can't see that one domain putting a 1,000,000 inbound links to a single page on another domain as being anything but a bad, bad thing. Combine that with some dodgy anchor text and you are on the road to ruin.

It's a shot in the dark without an example but I would suggest an nofollow given what we know.