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Keyword research
is the science of discovering
keywords that internet surfers are using to find the information
they seek. It is estimated that search engines such as Google and
Yahoo provide 8% of traffic to websites.
- The success of a Website is dependant on the quantity
and quality of its content.
- The content should be structured around
keywords.
No keyword research
tool can accurately identify every search conducted for a given keyword.
Keyword research
tools provide access to databases of information provided by the search
engines.
Each keyword tool database is subject to their sources and they all
use different sources.
As a result:
- The numbers of searches reported by the different tools
vary.
- KEI calculations will differ.
Until recently, Google, the largest source for search engine keyword
referrals, only provided relative frequency graphs.
From July 2008,
Google
has commenced offering actual numbers of searches for the previous
month.
OVERTURE KEYWORD SUGGESTION:
The first keyword tool that actually gave SEO keyword selection was
Overture Keyword Suggestion Tool (now owned by Yahoo).
This tool is is dying. The keyword counts have not been updated
since January 2007 and Yahoo! publicly said they will no longer
support or maintain it. Overture's keyword suggestion tool was a
great tool whose purpose was to promote Overture (or Yahoo Search
Marketing).
A number of software developers created keyword tools that bombard
this database with so many requests that the tool barely (if ever)
responds any more. Overture used to get a good number of searches
per day. Here's a look back in 2003 when they received 167 million
searches per day and were pretty competitive with Google at the
time.
This keyword suggestion tool
obtained its information from searches done on the Overture.com search
engine and based the data for its keyword count over the 30 days prior
to the month you would be searching for keywords. There has never been
certainty of the actual size that the 30-days of database covered, but
it was sizeable as it produced counts considerably higher than
other keyword sources.
The creators of WordTracker, discovered back in 2000/2001 that the data
Overture was providing in their Keyword Suggestion Tool was NOT
producing the kind of traffic promised for them or their SEO clients. In
otherwise, it was inaccurate.
When they analyzed what was going on and why the traffic for a specific
keyword did not produce the results the Overture keyword suggestion tool
promise, they Apparently, the problem is that when business and bid
management companies used automated scripts to query Overture.com about
a particular bid position for their paid results, each time a robot
searches for a keyword phrase, that query WILL count toward the Keyword
Suggestion Tool count. This could potentially increase the numbers and
give you inaccurate figures to base your research upon.
The following table demonstrates some problems.
| |
Date ymmdd |
Keyword Tool |
Keyword |
Searches |
Google results |
R/S |
KEI |
|
|
A |
80407 |
Overture |
life expectancy |
5627 |
7040000 |
1251 |
4.5 |
|
| |
80623 |
Overture |
life expectancy |
5627 |
9550000 |
1697 |
3.32 |
|
| |
|
|
|
|
|
|
|
|
|
B |
80623 |
WordTracker |
life expectancy |
307 |
12200000 |
39739 |
0.01 |
|
| |
|
|
|
|
|
|
|
|
|
C |
80624 |
Keyword Discovery Premium |
life expectancy |
999 |
|
|
|
365 days |
| |
80624 |
Keyword Discovery Historical |
life expectancy |
64992 |
|
|
|
365 days |
| |
|
|
|
|
|
|
|
|
|
D |
80624 |
Keyword Discovery Historical |
life expectancy |
5,333 |
|
|
|
30 days |
| |
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
E |
80623 |
WebWords |
life expectancy |
911 |
9,550,000 |
10483 |
0.09 |
|
|
F |
80717 |
Google |
life expectancy |
368,000 |
12,200,000 |
|
11100 |
|
|
G |
|
|
|
|
|
|
|
|
A: The results using Keyword Analyzer (Overture)
shows that there is no apparent change in the number of searches in "the
preceding month" for the keyword "life expectancy" - not surprising as
Overture is not being updated. The Google results has increased
suggesting an increase in R/S and fall in
KEI - You are more likely to achieve high
rankings for keywords with low R/S and high KEI. Overture is a
free tool -
http://inventory.overture.com/ It is so popular that it is virtually
impossible to link to it. Keyword Discovery Historical is also free
and provides a database of similar size. -
http://www.keyworddiscovery.com/search.html - It is not as well
known and seems to be more accessable. F: Note the relatively high
number of searches as shown by Google and the increased KEI.
WORDTRACKER
WordTracker is the first real keyword tool that offered a real toolset
to harvest and analyze keywords.
Wordtracer utilised their observation that the keyword data and
information collected by Meta Search Engines allowed them to avoid the
automated robot searches that was inflating keyword count with the
Overture tool.
These search engines do not attract that much attention from robots
because they do not offer pay-per-click services and most Internet
marketers tend to focus on the big three engines like Google, Yahoo and
MSN. Results on Wordtracker therefore are more accurate when it comes to
gauging what kind of traffic you may receive when ranking on Page One
for a specific keyword.
It acquires search eengine logs from two search engines
DogPile.com and MetaCrawler.com, both meta search engines.
So this collective data that WordTracker receives from Dogpile.com and
MetaCrawled reflects keyword phrase counts over the past 90-100 days,
and their database during that period of time is usually between 300-340
million keywords.
InfoSpace, Inc., which owns both Dogpile.com and Metacrawler.com, occupy
about .5% (point 5 percent) of the entire searches on the Internet (it
was .9% as reflected in that 2005 chart).
This ultimately means that there is at least 99.5% of the rest of the
world's search data, 96% of which is housed by Google, Yahoo, MSN, AOL
and Ask.com.
Whiile WordTracker is the most accurate of the entire bunch of
databases, it is far from being scientifically accurate.
So when you want the freshest keyword data for your project, do not
hesitate to think twice and use WordTracker as the source.
KEYWORD DISCOVERY:
From 1999 until mid 2005, WordTracker was really the sole and dominant
force as a keyword research service and source of keywords.
There were other keyword services who tried to penetrate the market and
failed -- but most keyword tools that came out were usually desktop
tools that used the FREE Overture keyword suggestion tool as the source
of data. And those developers are now nowhere to be found in the wake of
the Overture keyword tool's virtual demise.
Then, around July 2005, Keyword Discovery emerged onto the scene with
what seemed to be this massive keyword database of 32 - 35 billion
keywords that would overshadow and compete in a major way with
WordTracker's keyword database.
Keyword Discovery said that their database contained keyword data from
major search engines (some of which were Google, MSN, Yahoo, Alta Vista
and many others) and that their database was in the billions.
The keyword database was large and it gave count numbers in the millions
for a good many number of main keywords.
However, the problem occurred that the count were overblown, much like
the Overture tool's inflated numbers as a result of automated keyword
scripts, ranking tools and big management script that would hit the
large search engines where the data came from.
The one major advantage to the data collected in this database was it
spanned over a period of one year, so seasonal terms could be mined, but
the huge search count figures brought into question the accuracy (or
inaccuracy) of the search count.
This was something Keyword Discovery had to address and they did so with
a new database called their Premium Database.
The first large database Keyword Discovery started out with that
contained around 35 billion keywords was moved into a secondary archived
position called the Historical database - the Global Historical
database.
Then the Premium Database was moved into the forefront as the
default database. The advantage of the new database was that Keyword
Discovery could segment the searches done in different countries.
This new Premium Database was initially comprised of 4,000,000 (4
million) private panel users and the promise of this database would be
that it would alleviate any skew from actual robotic scripts and bid
management tools check.
The parent company of Keyword Discovery, Trellian, Inc., distributes a
toolbar from its site and other various sites.
Whenever someone uses that toolbar installed on their desktop computer,
it not only acts as a tool for the consumer, it also reports back to the
Keyword Discovery Premium Database that someone made a search on a
particular search engine.
Since the data that is collected reports directly back from the toolbar
itself the data is not from search engine logs, there is no potential
for skew in the search count whatsoever.
There was a huge and dramatic shift in the search count numbers going
from the now Historical archived database and moving to the new Premium
Database.
NicheBOT users that utilized the older archived historical database were
shocked at how low the numbers were at first because the database size
was quite small when you consider there were only 4,000,000 users as the
sample size and we know the Internet to have 1.5 billion users.
So with the WordTracker database and the Keyword Discovery database,
keyword research is not particularly accurate as the data is relatively
small, but it is representative and certainly better than guessing.
Google certainly is a better way to confirm whether a keyword has some
true volume on a particular keyword phrase or not.
GOOGLE KEYWORDS
Google is currently the most used search engine.

Google does not allow you to view
any exact search volume counts with any specific number.
Google displays a
bar graph from 1 to 5 with the number 1 representing a very low search
volume and 5 representing extremely high search count.
The following is a typical graph:

Some experts recommend that if you are using WordTracker or Keyword
Discovery to find the high volume keywords to check against the Google
Search Volume graph shown in the above screenshot. It's always best to
verify one smaller source against the biggest available source.
Here's a screenshot of a Google Trends graph:

And since, once again, Google does not show the actual search count in
the trends graphs, there's no real way to show a comparison of
popularity from one keyword overlapping another. Google's keyword engine discovering keywords that may not be
identifiable from other services.
Keyword Analyzer
This is my first choice keyword research tool. It
utilises the overture database. Although this is no longer current,
Google Trends (see graph above) demonstrates that there is no
significant shift in the number of searches being conducted for the
keywords that I am seeking.
A useful feature that can be utilised with Keyword Analyzer is the
"Results in Quotes" when searching with Overture. (Settings> Campagne -
Get Results in Qoutes. This returns the Google results for a narrow
search. Using the example of life expectancy table, there are
280,000 webpages on broad search and 14700 with
narrow search. This feature identifies lower R/S and higher KEI. "Life
expectancy table" has a reasonable number of searches and would
therefore be a useful keyword phrase to target.
| |
Keyword |
Searches |
Google results |
R/S |
KEI |
| |
life expectancy |
5627 |
10800000 |
1919 |
2.93 |
|
Results in Quotes |
life expectancy |
5627 |
9530000 |
1694 |
3.32 |
| |
life expectancy table |
1343 |
280000 |
208 |
6.44 |
|
Results in Quotes |
life expectancy table |
1343 |
14700 |
11 |
122.7 |
| |
life expectancy calculator |
1029 |
254000 |
247 |
4.17 |
|
Results in Quotes |
life expectancy calculator |
1029 |
31100 |
30 |
34.05 |
| |
average life expectancy |
642 |
1820000 |
2835 |
0.23 |
|
Results in Quotes |
average life expectancy |
642 |
762000 |
1187 |
0.54 |
Keyword Analyzer also provides the option to utilise national data.
There were 356 searhes for "accountant London" on overture.com but
3,206 searches with overture.co.uk. The KEI is also reasonable.
| |
|
Keyword |
Searches |
Google results |
R/S |
KEI |
|
Broad Search |
Overture.com |
accountant |
253545 |
43900000 |
173 |
1464.35 |
|
Broad Search |
Overture.com |
accountant London |
356 |
328000 |
921 |
0.39 |
|
Broad Search |
Overture.com |
tax accountant |
98286 |
2080000 |
21 |
4644.3 |
| |
|
|
|
|
|
|
|
Narrow Search |
Overture.com |
accountant |
253545 |
43900000 |
173 |
1464.35 |
|
Narrow Search |
Overture.com |
accountant London |
356 |
51600 |
145 |
2.46 |
|
Narrow Search |
Overture.com |
tax accountant |
98286 |
1940000 |
20 |
4979.45 |
| |
|
|
|
|
|
|
|
Broad Search |
Overture UK |
accountant London |
3206 |
327000 |
102 |
31.43 |
|
Broad Search |
Overture UK |
accountant |
187425 |
43800000 |
234 |
802.01 |
|
Broad Search |
Overture UK |
tax accountant |
75640 |
516000 |
7 |
11088 |
|
80621 |
|
|
|
|
|
|
|
Narrow Search |
Overture UK |
accountant |
187425 |
43800000 |
234 |
802.01 |
|
Narrow Search |
Overture UK |
accountant London |
3206 |
51600 |
16 |
199.19 |
|
Narrow Search |
Overture UK |
tax accountant |
75640 |
243000 |
3 |
23544.9 |
By searching for "accountant London" on overture.co.uk a number of
additional useful keyword phrases are revealed by Keyword Analyzer.
| |
|
Keyword |
Searches |
Google results |
R/S |
KEI |
|
Narrow Search |
Overture UK |
accountant London |
3206 |
51600 |
16 |
199.19 |
|
Narrow Search |
Overture UK |
chartered accountant London |
350 |
4960 |
14 |
24.7 |
|
Narrow Search |
Overture UK |
accountant in London |
188 |
10700 |
57 |
3.3 |
|
Narrow Search |
Overture UK |
accountant greater London |
181 |
5090 |
28 |
6.44 |
|
Narrow Search |
Overture UK |
accountant north London |
135 |
884 |
7 |
20.62 |
|
Narrow Search |
Overture UK |
accountant central London |
37 |
846 |
23 |
1.62 |
|
Narrow Search |
Overture UK |
accountant west London |
32 |
1170 |
37 |
0.88 |
|
Narrow Search |
Overture UK |
tax accountant London |
27 |
2810 |
104 |
0.26 |
|
Narrow Search |
Overture UK |
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