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Since I submitted the list of top 50 SEO blogs from blog rank to sphinn, I received a large number of emails asking me how does blog rank determines the ultimate rank calculation. So, here is the answer. 

Currently, blog rank indexes and collects data for about to 20,000 blogs. You might notice that not all of these blog are displayed in the system. We wanted to work out more issues with algorithm before releasing more blogs. We currently use over 20+ different factors in determining the ultimate rank logic. Some of these factors include [this is by no means is a comprehensive list]:

1. RSS membership

2. Yahoo incoming links

3. Yahoo indexed pages

4. Google indexed pages

5. Google PR

6. Monthly visitors

7. Pages per visit

8. Link to page ratio

9. Compete Alexa,and Technorati ranking

12. social sites popularity (Digg first page stories, Stumbleupon reviews, Delicious bookmarks, Redditt, Propeller and mixx)

The factors of course are not all given the same weight. Factors which can be manipulated such as, incoming links and pages indexed by Google or Yahoo, have less weight compared to factors such as, pages per visit or RSS membership. Additionally, each blog receives different weight for the above factors depending on the category it is listed in, because it is measured against all the blogs in that particular category. For example, if a blog is listed under two categories: social media and blogging, it will most likely receive different points for RSS membership, Digg first page stories, Compete Ranking, etc in these two different categories.

Finally, batch data updates run for blog rank on daily basis. While we continue to tweak the ranking logic, we do not edit the ranking for any of the categories manually.

I am in the process of collecting all the questions I receive regularly for blog rank to create a FAQ. Please feel free to leave a comment here or drop me an email khalid at invesp dot com

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34 Responses to “ How does blog Rank calculates the ultimate rank?”

 
Gary Arndt Says -- June 2nd, 2009 at 2:33 am

I’ve noticed that you hare having a hard time picking up RSS numbers for many sites, even if they have their numbers open and available from Feedburner. I’m guessing this might also be true with grabbing numbers from other sites like StumbleUpon, Digg, etc.

Have you made any progress in launching lists for more topic areas?

 
Khalid Says -- June 2nd, 2009 at 2:49 am

Hi Gary,

We do run into issues with feedburner not returning data back. But I would say that we fixed most of these issues at this point. Do you have specific examples for sites where feedburner stats are not correct.

We will be launching more topics over the next two weeks. The plan now is to ask for volunteers to help us edit some of the new categories.

 
Valuable Internet Information » How does blog Rank calculates the ultimate rank? Says -- June 2nd, 2009 at 3:19 am

[...] More:  How does blog Rank calculates the ultimate rank? [...]

 
Gary Arndt Says -- June 2nd, 2009 at 10:30 am

My site isn’t showing its RSS feed for one :)

Many of the sites listed that have N/A for their feed have the Feedburner chicklet.

I’d be glad to help find sites for the travel category.

 
chris Says -- June 2nd, 2009 at 3:32 pm

Are you guys having any problems with wordpress.com reporting visitor stats for blogs hosted by their service to your ranking service? When I signed up my blog to your service it reported 0 unique monthly visitors to my blog.

 
Khalid Says -- June 2nd, 2009 at 3:52 pm

@Gary I will look into that. Seems we are having problems with reading data from feedburner for some blogs.

@Chris if your blog is on a subdomain (blog.wordpress.com) or a sub page (site.com/blog), then we are not able to retrieve visitor information from Compete.com. We are working on a fix to that in the next few weeks.

 
chris Says -- June 2nd, 2009 at 6:18 pm

Thanks for the quick response Khalid, I figured it was a wordpress.com issue.

 
lucio ribeiro Says -- June 14th, 2009 at 8:41 am

Hi Khalid,
3 things

1) good work – congrats for all effords – It’s not just linkable but it’s a great source of information

2) Thanks for including marketingeasy.net

3) What’s the news around RSS counts?

Cheers
Lucio Ribeiro
marketingeasy.net
twitter.com@lucio_ribeiro

 
Invesp Consulting and the Top List | Photo and Community News Says -- June 16th, 2009 at 7:43 am

[...] recently put up a list photography blogs ranked by some algorithm. They have a rather vague description of if. I just hope they’ll put some detailed description [...]

 
espaifotografic.cat - tot fotografia Says -- June 23rd, 2009 at 1:01 am

[...] o Yahoo, dades de diferents ranks com Technorati… També ens expliquen en la mateixa web com es varen aplicar, i amb quin criteri, tots aquests conceptes per procedir a [...]

 
Jonathan Richman Says -- June 25th, 2009 at 3:30 pm

You asked for examples where RSS numbers weren’t working. My blog just got added (thanks) and it has “0″ for the RSS membership. I’ve got my RSS subscribers via Feedburner posted right on my site. Not sure what’s up with the feed. Is there something I would need to do to make the number public so you can pull it?

 
Top Advertising blogs from Blogrank | Bhatnaturally Says -- June 26th, 2009 at 8:58 pm

[...] Top Advertising Blogs in the world, as listed by Blogrank is based on 20 different factors. Here are the Top [...]

 
Top 100 Small Business Blogs Per BlogRank | Small Business Trends Says -- July 4th, 2009 at 10:51 pm

[...] Khalid Saleh, one of the principals of Invesp, has written more about the backtground of BlogRank here. [...]

 
Top 100 Small Business Blogs Per BlogRank « Small Business Center Says -- July 5th, 2009 at 10:04 am

[...] Khalid Saleh, one of the principals of Invesp, has written more about the backtground of BlogRank here. [...]

 
Top 100 Small Business Blogs Per BlogRank » Become eVOLVE'd Says -- July 6th, 2009 at 9:32 am

[...] Khalid Saleh, one of the principals of Invesp, has written more about the backtground of BlogRank here. [...]

 
Jonathan Richman Says -- July 13th, 2009 at 5:40 pm

I really don’t get where the rankings come from on here. For example, your top ranked marketing blogs by Compete, Technorati, and Alexa ranks seem to be the lower half or more. My blog (http://www.doseofdigital.com) has a higher ranking than all of these (by quite a lot) for each of these. The top marketing blog by Compete rank has a rank of 354,268. My rank is 190,614. I’m by no means the most trafficked blog on the overall list, as many others would be way ahead of me. But using your numbers, I’d be number one for all of these rankings. Something isn’t right.

 
planetMitch Says -- July 15th, 2009 at 8:29 am

Is the ranking ever recalculated? I submitted my blog and it came out at 97 or so in the photography category, and I don’t think many things were considered. I was expecting a higher ranking based on what I know about my blog.

Google says I had 26,899 unique visitors in the last month which would put me in the top 10 on ranking alone.

Alexa ranks me at 138k on the 3 mo avg

Anyway, I was just wondering if they get recalculated or if it is a one time thing?

Thanks – interesting concept you’ve got.

 
khalid Says -- July 15th, 2009 at 8:38 am

Hello everyone and thanks for the feedback. The issue with feedburner numbers is fixed at this point.

 
khalid Says -- July 15th, 2009 at 8:43 am

@Jonathan Richman

Not sure if we are looking at the same numbers. The top marketing blog has a compete score of 35,242 and an alexa score 51,265. However these are only 2 of the 20+ factors we evaluate. So, while you might outrank one of the top blogs in some of the factors, they will most likely outrank you in many others.

@ planetMitch
The ranking get recalculated daily. We rely on compete to report the monthly visitors. Compete is not always accurate however this inaccuracy is consistent across different blogs. So, if compete is reporting only 20% of your traffic, you can expect it to report 20% of the other blogs in the same category.

 
New Blog ranking | taxguy Says -- July 17th, 2009 at 5:27 am

[...] It is rather interesting the way things are broken down for us. In a post they describe just how does blog rank determine the ultimate rank calculation, how it works – sorta. Maybe more than I realize, but I found it a bit vague. But what would I [...]

 
Lilly Says -- July 17th, 2009 at 6:41 pm

Just found this through a hit to my blog from this site. I see that I’m not showing up in the ranking list for number of feed subscribers – I do use Feedburner and have been for about a week or so now. Does it take awhile for that to be picked up on?

 
Neil Duckett Says -- July 22nd, 2009 at 3:53 pm

Great list. Like Gary has mentioned there seems to be an issue with the feeds. Here`s mine …. maybe it can be manually added / edited.

http://feeds2.feedburner.com/neilduckettdotcom

Cheers!

ND

 
Mark H Says -- July 24th, 2009 at 6:35 pm

Excellent list including a few new ones to me. The compete numbers are weird but that is with them, not you. Similarly my feedcount isn’t recorded and is on a chicklet on my site. The feed is:

feeds2.feedburner.com/TravelWondersOfTheWorld

Thanks

Mark H

 
Top 150 General Travel Blogs according to Invesp – The ultimate Ranking ? — Happy Hotelier Says -- July 28th, 2009 at 4:43 pm

[...] Khalid who seems responsible for the project blogs about it in How Does Blog Rank calculate the ultimate rank? and explains that they use 20+ parameters which they mix together and with a different [...]

 
Tim L. Says -- July 29th, 2009 at 11:51 pm

My RSS subscriber number is showing up as n/a for the Cheapest Destinations blog. I’m guessing it’s the subdomain issue. It’s close to 900 most weeks though, which would significantly affect my ranking.

 
DFW Startup Blogs Rank in Top 100 Startup Blogs | Fort Worth Startup Blog Says -- August 20th, 2009 at 11:57 am

[...] the other SpringStage blogs make the list. According to the blog rank website, blog Rank uses over 20 different factors to rank the blogs in any category. Some of the factors include:RSS membership, incoming links, [...]

 
amad Says -- September 30th, 2009 at 1:33 pm

Thank you Khalid for putting this together. I am putting together a piece on MuslimMatters to highlight this effort (and it is just not because we are #1 in Islam :) but also for the merits of this ranking).

I am puzzled by the Technorati data shown… it is off by about 120,000 for our blog. Check it out.

Thx again.

 
esteban Says -- October 3rd, 2009 at 2:39 pm

actually,

most of the numbers for my blog are off by a few… and i do have feedburner and technorati and all the others ranks, but still showing as NA. unique visitors, etc. is also off.

any way to make sure you get the right data? i know i have one of the top blogs for customer service but it shows me as 32nd here…

 
Islam Blogs: The Ultimate Rank — We’re #1 | MuslimMatters.org Says -- October 6th, 2009 at 12:15 am

[...] one of the more comprehensive and well-rounded rankings by Invesp (and that’s just not because we are #1). The rankings are not popular yet, but have the [...]

 
Chip Michael Says -- October 17th, 2009 at 10:50 am

My RSS feed shows none and yet I do have a dozen subscribers. It may not be a big deal, but since it’s in ranked 46th in Classical Music blogs with no subscribers a dozen might actually improve my score.

Thanks

 
Tammy Says -- October 29th, 2009 at 6:09 pm

I know you had about 20,000 blogs listed when you first started, but how many do you have now? I am ranked 58th in parenting and it would help if I knew how many blogs are in the parenting category to know if that is good or not.

 
Chip Michael Says -- November 5th, 2009 at 2:11 am

I’m not sure how Unique Visitors is tabulated either. I had 8,874 visitors last month and since Sitemeter doesn’t count me as a visitor I can’t believe they were not several thousand unique visitors.

Is there code that we can add to our html that will help with your stats (either for visitors, rss feeds, Propeller submissions – it shows none for Interchanging Idioms and yet I found several dozen the other day)???

Thanks,

Chip

 
Jessica @Riding with Jessica Says -- November 24th, 2009 at 10:36 pm

I have noticed that alot of actual websites and forums have added themselves to your BLOG rankings. They don’t even have a blog. This skews the ranks for the real blogs that. Will you be cleaning that up?

 
Krolik Says -- January 31st, 2010 at 1:05 am

It doesn’t seem to be fare to give all blogspot’s blogs Alexa Rank = 7. It skews the overall rankings.

Also, I noticed, RSS memberships are still not calculated correctly (shows N/A) for many blogs which do have subscribers.

 

What do you think?