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February 2012 Google Update Affects Link Evaluation
A Link Evaluation Signal is Gone... Which One?
martinibuster




msg:4422581
 10:56 am on Feb 28, 2012 (gmt 0)

According to this Google Blog Post:

http://insidesearch.blogspot.com/2012/02/search-quality-highlights-40-changes.html

Google has removed one of the link-related signals of what the topic of a page is. Understandably they didn't say which signal it was:

Link evaluation. We often use characteristics of links to help us figure out the topic of a linked page. We have changed the way in which we evaluate links; in particular, we are turning off a method of link analysis that we used for several years. We often rearchitect or turn off parts of our scoring in order to keep our system maintainable, clean and understandable.


So what are the signals related to the topic of the linked page? Here are some suggestions. Feel free to add more.

Title Tag
The title tag is a signal of what a web page is generally about. The title tag has been used to help identify the meaning of a linked page from the general theme of the page linking to it. The title tag is a signal of the general theme of a web page. The topic of a link can vary from a side topic to a more granular or a completely off topic meaning.

Surrounding Text
This establishes the context of a link, thus helping to define what the linked web page is about. This also helps identify if a link is paid for or is associated with a donation.

Position of a link
Where a link is located is an important signal. A link in the footer is presumed to be less important than a link within the body of a web page. Navigational links are presumed to be depreciated according to a set amount, perhaps more than outbound links but just a fraction of a normal non-depreciated link.

HTML signals related to weighting of a link
These might include Heading Tags [w3.org], bold, italics, capitalization and font size [webmasterworld.com] as factors for assigning greater weight to a link. Font size is an interesting candidate for depreciation. Here is what the orignal Google Paper says about Big Fonts:

Aside from PageRank and the use of anchor text, Google has several other features... Google keeps track of some visual presentation details such as font size of words. Words in a larger or bolder font are weighted higher than other words.

[edited by: martinibuster at 9:46 pm (utc) on Feb 28, 2012]

 

anallawalla




msg:4430708
 2:18 am on Mar 19, 2012 (gmt 0)

I don't know if bhartzer is watching this thread, but his comments vis-a-vis his tests with anchor text would be valuable. I tend to think that laser-targeted anchor text is the signal being ignored, as it also fits with the recent announcement about over-optimisation.

wokka




msg:4431672
 10:28 am on Mar 21, 2012 (gmt 0)

Yes, my ecomm site has been hit by some sort of over optimisation penalty since 19th Feb. All the search phrases that have been targeted with anchor text fell from page 1 to page 2 and below.

I've just run a report on the number of external domains (not link counts) that point to my site with a certain keyword. The distribution is:-
KW1 13.89%
KW2 5.61%
KW3 5.26%
KW4 4.91%
KW5 4.00%
KW6 3.44%
KW7 3.30%
KW8 2.95%
KW9 2.60%
KW10 2.46%
KW11 2.39% **Domain Name**
KW12 1.75%
KW13 1.68%
KW14 1.47%
KW15 1.40%
KW16 1.40%
KW17 1.33%

The thing is that all of these keywords (except for domain name) have been demoted dramatically, even keyword 17 with only 1.33% of external domains having used that particular anchor text. Long tail searches are still appearing on page 1.

I can understand why KW1 would raise an OOP flag, but it seems like once a site has over stepped the mark with one keyword, they then mark the whole site as being over optimised.

Can anyone recommend the direction I take now:-
1. Leave it and wait to see if it recovers
2. Try to dilute the high %age anchor text links with lots of natural 'click here' 'domain url' type anchors
3. Start work on a new site, creating lots of great content and hope to gain links naturally.
4. Forget about developing my own ecommerce site and sell my products on ebay and amazon.

TIA

CainIV




msg:4434578
 9:57 pm on Mar 28, 2012 (gmt 0)

FWIW I am seeing the following elements being potential issues right now

1. Blog networks / whois / ownership, and eval of template based websites with contextual outbound links that are not authority

2. OOP potential for sites with a lower number of inbound brand / company links and www links. This seems to be based on a number of factors including the specific vertical

3. The number of total questionable higher pagerank links - even if relevant - that some websites have pointing at them.

4. The total recent rate of link building.

Number four seems to be a flag that allows Google to instantly spot who is building aggressively, and then algorithmically eval those links, but difficult to say the exact system / approach.

johnser




msg:4438144
 8:46 pm on Apr 6, 2012 (gmt 0)

I can understand why KW1 would raise an OOP flag, but it seems like once a site has over stepped the mark with one keyword, they then mark the whole site as being over optimised.

We're seeing this in a very competitive sector.
SERPs for our KW1 dropped end of Feb.

Clear OOP on anchor text - based on lots of bad links (via previous SEO of course!)
But then KW2 & KW3 (with more natural anchor text) took a hit in the rankings.
This would seem to back up your theory wokka.

2. OOP potential for sites with a lower number of inbound brand / company links and www links.

This would seem to be the case & ties in with my eg above

4. The total recent rate of link building.

Definitely not seeing this.
J

maddawg




msg:4441756
 2:04 am on Apr 17, 2012 (gmt 0)

@CainIV

I'm seeing the same thing. It's not just about "anchor-text being devalued" based because websites with natural, high quality, but overly repetitive anchor text links (guest posts, widgets, high quality press releases, etc) are still ranking high.

Websites that manipulated rankings thru low quality, high PR keyword-rich anchor text are all getting hit. It seems to me that the site's recent link acquisition rate is really what tripped something.

This has always happened in the past but it seems like google is emphasizing this even more than it used to. I can't help but think this is part of their efforts to prevent overly-SEO'd sites from dominating the rankings.

mfishy




msg:4442003
 3:05 pm on Apr 17, 2012 (gmt 0)

Query "search engine" without the quotes and this should tell you all you need to know about how they are dealing with anchor text.

As a side note, it also shows a generic example of how they are failing to return the most important/fresh/relevant pages these days largely because of recent changes to the algo (specifically regarding links).

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