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
-
Many SEO tools donot allow me to check my site with https?
Hello All, Many seo tools I am using in that few tools do not allow me to test my site with https but it force me to check with http and then give report. So my query is do these tools give accurate report with http same like https? Thanks!
Competitive Research | | wright3350 -
How did this little site rank #2?
Keyword: "adoption agency" Site: http://www.opendooradoption.org These guys are ranked #2 for this very competitive term in all US regions. They're beating Bethany (and my company) who are orders of magnitude larger in both company size and link profile. Their domain authority is 40, and they have less than 200 links pointing to them with "adoption agency" in the anchor according to OSE. Their on-site is pretty much nonexistent. Does anyone have any theories as to how they accomplished this?
Competitive Research | | AdoptionHelp0 -
How can I obtain analytics and social data for a site that I'm not authorized on?
I'd like to get traffic information and facebook /twitter stats for a company. Don't know their ua, logins or have access to any of their pages. Where can I find this information? Any help would be greatly appreciated!
Competitive Research | | brandonschultz0 -
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 -
Is it possible to see bounce rate on external sites?
Are there any tools that will let you see your competitor's bounce rates?
Competitive Research | | nicole.healthline0 -
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 -
How does a site get to no 3 in Google with no KW in their links?!!
Hello everyone, my first post - ahhh I'm investigating a niche and there is a site that should have no right being there in my view. It's no. 3 Google UK for 'company formation' with a small site with 65 weak links from only 7 domains and hosted in the US. But more importantly, the Open Site Explorer says there is not 1 link with that term in its anchor text. This I find crazy and makes me suspicious. But before I go back to my client saying "oh they must be black hat" I would like your expert views. I'm not sure whether to tut or congratulate them and for the first time I'm not sure what reasons to give for their amazing performance! What's your views?
Competitive Research | | GOYMedia480