Why there is no even close correlation between MajesticSEO data and Open Site? Explorer?
-
I compared my site home page against my competitor homepage with Open Site Explorer and I found that according Open Site Explorer I have only 3 backlinks where in MajesticSEO I have more than 100 backlinks in 'Historic' data and more 90 in '30 days fresh data'.
Why there is no even close correlation between MajesticSEO data and Open Site Explorer?
How SEOMoz count backlinks?
-
What's so awesome about a fresh index when it thoroughly confuses the issue (includes dupes from weird sessionIDs/URL parameters, etc). If MajesticSEO isn't showing accurate link count numbers, I have no use for it.
Mike Corso
Cool Site of the Day
The Internet's Oldest Directory
http://www.coolsiteoftheday.com -
We did a bunch of work on this a while back, so my stats are probably not up to date (I think around October of 2010). Basically, we compared Yahoo! Site Explorer numbers, Google numbers (via the crappy but somewhat proportional link: command), Exalead, SEOmoz, Majestic and Alexa.
Majestic was definitely odd and so was Alexa. Neither of those two mapped/correlated well to the quantities reported by the others. Thus, for example, if xyz.com has:
- 50 links according to Google
- 1,000 links according to Yahoo!
- 500 links according to SEOmoz (Linkscape/OSE)
And site abc.com has:
- 100 links according to Google
- 2,000 links according to Yahoo!
- 1,000 links according to SEOmoz (Linkscape/OSE)
The percentages of quantity will match up fairly well for these, but not for Majestic (e.g. they might show 5,000 links for xyz.com and 3,500 for site abc.com).
This is a bit odd, but we don't know exactly why. They crawl a ton more links than even what Google/Yahoo!/Bing reportedly do, which could be part of it, but my best guess is the canonicalization and freshness issues. Since MJ crawls the web all the time, and doesn't build "indices" every X time period (like Google/Yahoo!/Bing/Linkscape), but rather maintains a single consistent link index to which new sites/links are added, the data structures may be different.
Majestic also appears, at least to us, to do far less canonicalization, removal of unnecessary URL parameters, etc. Thus, if one site links from 50,000 pages due to weird session IDs in the URL, that might bias the crawl and link count, but standard canonicalization will normalize these.
I really don't mean to bash on a competitor - MJ's fresh index is awesome, their tools are good, and a ton of SEO folks find them useful, including myself. But, on the index matching and link count numbers, we definitely see this same weirdness that many other SEOs do.
Hope that helps!
-
Opensiteexplorer more or less takes a representative random sample of the available links. More prominent links have a tendency to be visible on opensiteexplorer rather than majestic seo. Also check out yahoo links.
-
Can you provide the site url?
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
Traffic Data for Competitor Subdomain
Does anyone know of a way to get monthly visitor data for a subdomain that I do not manage? I would normally use SEMRush or Compete, but they only provide domain level data.
Competitive Research | | dsinger0 -
How Do You Create an excel spreadsheet of all blog post content on a site?
Is there a quick and easy way to create an excel spreadsheet with a list of all blog content and it's SEO factors i.e. URL, title, description, etc.? I know I could use screaming from to get the entire site but is there a way to just get the content on the blog?
Competitive Research | | RonMedlin0 -
My site is ranked in the top 5 for my keywords, but howcome I'm low in an organic search results for my key words?
Are the other factors such as page rank, Alexa rating and mozRank used to determine where I will show up in search results, over Goggle's key word rank for my key words?
Competitive Research | | allstatetransmission0 -
How can a site rank higher when you beat them by A LOT on virtually every SEOMOZ factor?
Any insight into what's driving these results would be appreciated. Another site ranks #6 and we rank #22 on a keyword that scores 67% for "Keyword Difficulty", but we score significantly higher than them on almost every ranking factor including having nearly 10 times more backlinks along with higher PA and DA scores,etc. Here is a comparison from the Keyword Difficulty Tool report. Question: What could be going on? Factor and ranking comparison (us v. them) with our higher rankings are listed first. PA: 61 v. 39, mozRank 5,85 v. 4,54, mozTrust 6.00 v. 5.49, mT/mR = 1.0 v. 1.2, total links = 4,198 v. 90, internal links = 4198 v 90, external links = 275 v. 57, followed links = 4171 v 85, no follow links = 27 v 5, linking root domains = 46 v 30 on-page grade = A v B broad keyword usage in title: yes v yes broad keyword usage in document: yes v yes keyword used in url = no v no keyword used in domain = partial v no KW exact match - no v no exact anchor text links = 2373 v 13 %links w/ exact anchor text = 56% v 14% linking root domains w/ exact anchor text = 7 v 8 % linking root domains w/ exact anchor text = 15% v 26% partial anchor text links = 0 v 0 Domain Authority = 54 v 27 Domain mozRank = 5.4 v 3.2 Domain mozTrust = 5.8 v 3.7 DmT/DmR = 1.1 v 1.2 External links to domain 9261 v 63 Linking root domains to this domain = 355 v 33 linking c- blocks domains to domain = 267 v 30 tweets = 4 v 3 FB shares = 13 v 11 Google Plus one shares = 1 v 0
Competitive Research | | rickt0070 -
Any chance to out rank Google flight data for company name?
If you search any number with "co" after it you get Continental Airlines flight information of the corresponding number. So you if you search "4co" you get the current flight details for Continental flight 4. Is there any chance if you have a company called 4CO and you own 4co.com that you could get the number one spot for that term or will google flight results always trump the "organic" results? Thanks!
Competitive Research | | 2comarketing0 -
Are there any tools to extract keywords and long tail keywords from a site and report keyword density by URL?
I need a tool that does the following: Find exact matches for keywords in content of sites and report keyword density by URL. Then identify the value generated by a particular keyword.
Competitive Research | | MotionPoint0 -
Is There Video Instruction on How To Use SEOMoz and Open Site Explorer?
Hi I have just signed up to use this software and would like to know how to use it properly. Is there a video tutorial on how to get the most out of the tools? I want to get the competition's backlinks but for some reason it's not openiing the page. I also want to know how the backlinks are assessed to find the real quality ones that I can link to. How are the backlinks assesed and what standards are used to asses backlink quality? Thank you Sunil.
Competitive Research | | sunilmuse0 -
Site redirect
Hi, Our site www.suncamp.nl has, for language reasons, 2 redirects So : www.suncamp.nl is redirected with a 301 to www.suncamp.nl/nl/nl and is than redirected 301 to http://www.suncamp.nl/nl/nl/home/uc19-l1-n804/ My question is; is this bad for our SEO? Recently we've been doing a lot of linkbuilding and SEO copywriting, but in comparison with our competitors were lagging behind. So I'm looking for other bottlenecks. Kind regards, Dennis Overbeek My email: dennis@acsi.eu ACSI
Competitive Research | | SEO_ACSI0