Friday, February 8, 2008

Google Algorithm Update Analysis

Anybody who monitors their rankings with the same vigor that we in the SEO
community do will have noticed some fairly dramatic shifts in the algorithm
starting last Thursday (July 5th) and continuing through the weekend. Many sites
are rocketing into the top 10 which, of course, means that many sites are being
dropped at the same time. We were fortunate not to have any clients on the
losing end of that equation however we have called and emailed the clients who
saw sudden jumps into the top positions to warn them that further adjustments
are coming. After a weekend of analysis there are some curiosities in the
results that simply require further tweaks in the ranking system.


This update seems to have revolved around three main areas: domain age,
backlinks and PageRank.


Domain Age


It appears that Google is presently giving a lot of weight to the age of a
domain and, in this SEO's opinion, disproportionately so. While the age of a
domain can definitely be used as a factor in determining how solid a company or
site is, there are many newer sites that provide some great information and
innovative ideas. Unfortunately a lot of these sites got spanked in the last
update.


On this tangent I have to say that Google's use of domain age as a whole is a
good filter, allowing them to “sandbox” sites on day one to insure that they
aren't just being launched to rank quickly for terms. Recalling back to the
“wild west days” of SEO when ranking a site was a matter of cramming keywords
into content and using questionable methods to generate links quickly I can
honestly say that adding in this delay was an excellent step that insured that
the benefits of pumping out domains became extremely limited. So I approve of
domain age being used to value a site – to a point.


After a period of time (let's call it a year shall we) the age should and
generally has only had a very small influence on a site's ranking with the
myriad of other factors overshadowing the site's whois data. This appears to
have changed in the recent update with age holding a disproportionate weight. In
a number of instances this has resulted in older, less qualified domains to rank
higher than newer sites of higher quality.


This change in the ranking algorithm will most certainly be adjusted as
Google works to maximize the searchers experience. We'll get into the “when”
question below.


Backlinks


The way that backlinks are being calculated and valued has seen some
adjustments in the latest update as well. The way this has been done takes me
back a couple years to the more easily gamed Google of old. This statement alone
reinforces the fact that adjustments are necessary.


The way backlinks are being valued appears to have lost some grasp on
relevancy and placed more importance on sheer numbers. Sites with large,
unfocused reciprocal link directories are outranking sites with fewer but more
relevant link. Non-reciprocal links lost the “advantages” that they held over
reciprocal links until recently.


Essentially the environment is currently such that Google has made itself
more easily gamed than it was a week ago. In the current environment, building a
reasonable sized site with a large recip link directory (even unfocused) should
be enough to get you ranking. For obvious reasons this cannot (and should not)
stand indefinitely.


PageRank


On the positive side of the equation, PageRank appears to have lost some of
it's importance including the importance of PageRank as it pertains to the value
of a backlinks. In my opinion this is a very positive step on Google's part and
shows a solid understanding of the fact that PageRank means little in terms of a
site's importance. That said, while PageRank is a less than perfect calculation
subject to much abuse and manipulation from those pesky people in the SEO
community it did serve a purpose and while it needed to be replaced it doesn't
appear to have been replaced with anything of substantial value.


A fairly common belief has been that PageRank would be or is being replaced
by TrustRank and Google would not give us a green bar to gague a site's trust on
(good call Google). With this in mind one of two things has happened; either
Google has decided the TrustRank is irrelevant and so is PageRank and decided to
scrap both (unlikely) or they have shifted the weight from PageRank to TrustRank
to some degree and are just now sorting out the issues with their TrustRank
calculations (more likely). Issues that may have existed with TrustRank may not
have been clear due to it's weight in the overall algorithm and with this shift
reducing the importance of PageRank the issues that face the TrustRank
calculations may well be becoming more evident


In truth, the question is neither here nor there (as important a question as
it may be). We will cover why this is in the ...


Conclusion


So what does all of this mean? First, it means that this Thursday or Friday
we can expect yet another update to correct some of the issues we've seen rise
out of the most current round. This shouldn't surprise anyone too much, we've
been seeing regular updates out of Google quite a bit over the past few months.


But what does this mean regarding the aging of domains? While I truly feel
that an aging delay or “sandbox” is a solid filter on Google's part – it needs
to have a maximum duration. A site from 2000 is not, by default, more relevant
than a site from 2004. After a year-or-so the trust of a domain should hold
steady or at most, hold a very slight weight. This is an area we are very likely
to see changes in the next update.


As far as backlinks go, we'll see changes in the way they are calculated
unless Google is looking to revert back to the issues they had in 2003. Lower
PageRank, high relevancy links will once again surpass high quantity, less
relevant links. Google is getting extremely good and determining relevancy and
so I assume the current algorithm issues has more to do with the weight assigned
to different factors than an inability to properly calculate a links relevancy.


And in regards to PageRank, Google will likely shift back slightly to what
worked and give more importance to PageRank, at least while they figure out what
went awry here.

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