In the past, I've expressed my views about Alexa.com's data and the Web site stats they make available. While I'm sure they've worked to improve their data processing, and have hopefully dealt with the 'gaming' issues (where people would drive their rank up), I'm still unsure that the data is anything more than a generalized indicator for the Web. Sites like AdBrite use your Alexa rank as a means to show advertisers your site's worth, and many top bloggers quote these same numbers when talking about sites. Why? Because it's been around for five years, and it was the only option for such data.
Fortunately, good ideas spread, start-ups come to life, and usually improve the overall market by raising the bar. In the Web stats and comparison market, Alexa was joined by Compete.com (last year?), and we can at least compare data between the two services.
I'll leave it to you to visit compete.com to learn how they get their data. Alexa gets their from their browser toolbars. Attention Firefox users... Alexa now has a toolbar for you too.
I think the best way to compare data between the two services is to look at a specific collection of sites which are in competition with each other - a single vertical market. Since I run a social music site (ArtistServer.com), I selected to compare my vertical as an example. Below, you'll see a table which lists most of my competitors, there are many more than this, although these are what I consider "music hosting services" that cater to artists/musicians, which is ArtistServer's focus.
Site Ranking Comparison
Site
Compete.com
Alexa.com
MySpace.com
6
6
Last.fm
1,450
284
Soundclick.com
2,319
1,495
PureVolume.com
2,523
2,095
ReverbNation.com
15,864
55,831
GarageBand.com
19,591
27,229
AudioStreet.net
42,638
58,403
AmieStreet.com
54,539
41,000
broadjam.com
62,974
27,471
iacmusic.com
75,778
135,873
Jamendo.com
79,377
19,037
dMusic.com
124,412
115,540
Funender.com
127,294
56,716
ZeBox.com
132,670
198,267
ProjectOpus.com
143,261
210,103
ArtistServer.com
148,780
165,307
MusicV2.com
170,543
92,029
SellaBand.com
194,966
47,262
ArtistLaunch.com
421,813
684,648
Soundlift.com
439,361
379,774
SonicGarden.com
558,929
449,186
Data from: 9/6/07
What do you think? At first it would seems that as you move down in rank, that the numbers would have a greater variance, but that's not the case. The numbers simply jump around - for example, look at ReverbNation or Funender, how is it that their rankings are so different between Alexa and Compete?
I think if we can gain access to a third or fourth dataset from another service, the best thing to do would be to average their rankings together to give us a single ranking. While the results would continue to just be an 'indicator' and not a real ranking, it might be a step in the right direction.
So - who is going to build the first Web Rank Aggregator? Or does it already exist?
hey Gideon, my 2 cents - also look at a 3rd site quantcast.com to give you one more reference source it's relativly new (been out about as long as compete). also there's a site called attentionmeter that let's you see results from all 3 sites + technorati, but you still have to view results on sep pages.
last, Alexa definitely tracks worldwide data, i'm not sure if Compete does, they *might* be US-only or N American-only best, Clark Benson
2
date: 10/28/2007 08:54:56 AM name: Gideon Marken url: gideonmarken.com
Hi Clark - Thank you for the comment, and yes, I've seen and used Quantcast many months ago and had forgotten about them. I'll have to check the attentionmeter site - I'm curious as to how they are doing it, as I don't believe Compete or Quantcast are providing data through an API, and I would think they would have policies in place concerning scrapping the data.
I've been thinking about the topic more lately and recently sketched out something I may build that would introduce another option which could greatly improve Web ranking. I just have to get through some of the other projects I'm tied up in. :)
BTW - interesting business you work for - i'm checking out the site now.
you might like ArtistServer's Genre Map - you can browse a genre on a map, seeing the distribution of Artists on the site: Genre Map