Link analysis going Crazy. Next Linkscape update. Multiple Problems

[randfish]

I don't think we have a satisfactory answer for you or for ourselves. So many things can affect when/whether/how metrics change that I'd be lying if I gave a single answer. It could be:

• Some sites earn more links on pages we do/don't crawl

• Some sites earn links from places that our metrics count less/more

• Some sites lose existing links

Which particular competitors have precisely which issues happening and what's a result of changes in PA/DA calculation or mozRank/mozTrust scaling is something we can't say today.

We could do this if we only crawled the same pages every index, but we know from experience this produces terrible results (as we both miss new pages and as in 1 month, ~15-20% of what we crawl decays with 404s/500s/30xs/etc). For now, our plan of attack is improving size and continuing to tweak the algorithms to get closer and more accurate correlations with Google's rankings.

I'm sorry this is so frustrating - it's a massively complex problem and we're doing the best we can, and working as hard as we can on improving. I don't think everything will be miraculously fixed in 3 months or 9 months or 24 months, but it will keep getting better, and we do believe we can make link research, link analysis and competitive comparison functionality very good over time. Even today, I think we've got the best product on the market for many of the functions here.

[OlivierChateau]

Rand

The one thing that I always appreciated is that you always take the time to explain and give your point of view.

Especially as the head of my company and as an entrepreneur myself i can only thank you for taking the time and energy to do that, it must be recognized and is a big part if the success of your company. As I said before despite this OSE/Linkscape situation, I still like you guys (my co worker offered me a moz sweater for holidays bc I always refer to your metrics/tool & they have little to no SEO knowledge).

BTW i will take this opportunity to ask (rather than request) that you provide some SEO blog specifically in the "consumer health information online space" which is dominated by 3 to 5 key players (which for most of them use very little or have simply ZERO social integration due to the highly regulated market place) yet still enjoy top rankings while guys like us are doing the best to change things. I know it takes time but some SEO perspective on this would be interesting

Thanks again

Olivier

[randfish]

Thanks Olivier - if you shoot me an email with 3-5 search queries you're hoping to analyze, I think it would be fun to do an analysis/plan-of-attack blog post in that space.

[OlivierChateau]

Thanks for responding and I will email you and take you on your offer.

[OlivierChateau]

Thanks for responding and I will email you and take you on your offer.

[Gyorgy]

Hi Oliver,

We use OSE for benchmarking and for report too; however, we also have a link building spreadsheet for every client. In case something happens with OSE or any other third party tool, we still have a reliable source of information and proof for the clients, that we're continuously working.

When I get a new link, I record the page, the domain, PA and DA values, etc., so later if OSE changes, I can still show the clients the number of links we collected and the value of the websites.

Always have a backup solution, don't rely on OSE only. If OSE fails, it's inconvenient, but not tragic.

[CompleteOffice]

Perhaps time now to give a little update about this issue since its been a few months. would be greatly appreciated.

[ShaMenz]

There have been a number of Linkscape updates since September and each of them is generally accompanied by a blog post (sometimes more than one) providing data and explanation of changes in methodology, new features etc.

The Linkscape Update Schedule provides a calendar of planned releases for the future.

The most recent post on the Interim Linkscape Update for January provides information on the release which occurred less than a week ago.

The October Linkscape update brought with it new features for Open Site Explorer.

November saw two LInkscape updates - this one in the first week of the month and the second in the last week of the month.

This post on updated Page Authority & Domain Authority explains the significant changes in the calculation of these metrics which were introduced with that second update in November.

If you want to keep up with future updates the easiest way would be to subscribe to the RSS feed for the SEOmoz Daily Blog ...then new posts will come straight to your inbox or reader when updates are released. Another option is to follow @SEOmoz on Twitter as updates are always notified there.

Hope that helps,

Sha

[mediaspider]

Hi Rand

Firstly, love the SEOmoz brand, videos and the info- think you guys are doing a great job for the industry.

Quickie:

I would like to know a bit more about different reporting and links. I have been using OSE, Alexa and majestic etc I noticed a sharp decrease in links on alexa and OSE. TBH, Every site gives different figures for sites linking in- quite confusing for someone wanting to track this data!

Also what's the recent update on thoughts from the Sept 2011 thing with OSE?

Do you (or others) know why this could be and what are the solutions to reporting back to clients with a definitive answer- if there even is one?

Best  Jake W

[randfish]

Hi Jake -

All the link sources have different indices, hence you'll see different data/numbers from each.

A decrease may mean that parts of what was being crawled no longer is, or it could mean that some pages are no longer active or no longer linking to you.

Not sure what you're referring to with Sept. of 2011 (~9 months ago). You can read all the updates to OSE here: http://www.seomoz.org/blog/category/38

Best of luck!