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There has been a lot of talk about the reduced number of backlinks in the new 'Dominic' index. Most of the talking is about Yahoo's huge number of backlinks. (I consider 384K a huge number). A lot of members may also have checked their own. But how many of us have actually *counted* their backlinks?
Google usually estimates the number of backlinks (as it does with the main results) and that guess just seems to be more accurate in the new index.
If you check the backlinks for site with a 'reasonable' number of links in the old (April) index, you'll notice that Google actually shows fewer links then it reports. Even if you click the link on the last page of the SERPS to include the omitted 'similar results' the actual number of results shown is less then the reported number. The difference may actually be about 50%!
These are not the low PR links that never show up as those are simply not included into the reported number. I've checked this with other sites with very few incoming links when Google gives exact numbers.
For a particular site Google will only show 21 out of 'about 42' reported backlinks and 381 out of 'about 764' for another site and 72 out of 144 on yet another site. I've even seen 1 backlink out of 'about 2'.
50% of the reported number of backlinks doesn't even exits!
In the new index the respective numbers for these sites are: 20 out of about 24, 276 of about 291, and 71 of about 75.
What I'm saying is that the number of backlinks hasn't been drastically reduced, Google is just learning to count better.
However many are also observing backlinks not showing that were placed for example in early april (before the deepcrawl). As googleguy commented - these might still show up.
The SJ server is showing a total number of links that is not even equal to the whole nubmer of backlinks from my own internal pages, let alone the links from other sites.
To be drawing any conclusions from the SJ data in my opinion is premature at this point.
The dance has not happened yet and until it does, we really won't know what data is going to show and how it is interperted.
My site shows (actually displays) over 70 IBLs on WWW right now (out of an estimated 146). -SJ shows 32 out of 39.
-SJ is definately using an older data set for my site. I think the differences between -SJ & WWW are more dramatic for newer sites (or sites that have had significant link building within the last two months or so).
I agree that we have to wait for the real update to say anything definite about sj-results. Lots of webmasters are still missing backlinks they now exist and should show in the index. This is another issue: those missing links are most likely not yet counted and are not yet included in the reported number. That might explain the fall from 381 to 276 on one of the sites I checked. This may be fixed when the missing links and last crawler data will be include in the index.
What I say is that the *estimated* numbers are now far more accurate and this accounts for the *huge* loss of links, compared to the relative small numbers of missing links in the new index.
Some of your links are still missing. How old are your missing links?
The -sj index seems to be a fairly old index with some fresh inclusions so your missing links may show up as soon as they have fixed that. I hope your backlinks will go up to 70 soon, but I still think 32 out of 39 is a better guess then 70 out of 146. You never had those 146 links indexed anyway.
If my theory is correct, then by that time Google will show something like 70 links out of 'about 70'.
For instance, I have a site that has been included (without my permission) in a good number of these so-called "directories" because it is a top 3, 5, 10, and 20 result for several, search terms related to "our" industry.
Anyhow, since I chose to include my name in my meta description tag, if I search towards the bottom of the "heap" in the SERPs for my name, I see a lot of very (feeble) attempts to create "hubs" using links to my site and others with good rankings.
I wish I could set a link to one of these - they have unintentionally created a piece of art - a keyword collage, if you will. Cool effect, varying the size of the header tags... Well, apparently the site took their subdomain page down, but the cache still displays it in all of its "glory".
Anyhow, google sees this link to my site, but it isn't listed in my backlinks. Therefore it shows fewer backlinks than I have, and fewer than Googlebot itself has discovered.
Thanks for the confirmation. I'm glad it wasn't just me :)
But it's still not working properly.
Yahoo's backlinks have gone up to 617K. (I'm not going to count those!) so I've rechecked the others. They are now 21 out of 25, 278 out of 294 and 71 out of 75. That still seems OK.
But I've also found another one that shows only 18 out of 31 reported backlinks on www2 (40 out of 80 on www). So this site is still missing links and has a big gap between reported and showing links.
The numbers of low PR incominging links do not relate to gap between reported and show links in the old index. That gap always seems to be 'about 50%'.
The overall effect is that I've lost ground on all keywords.
I hope the dance continues and there is a full update of April backlinks.
very interesting ... I have a site, which I did a lot last month and for "some" reason it is #1 on very competitieve keyword (was #15).
And for this site I expect to have more links shown .... in fact it shows ONLY all old links, just exact number ;) So I suppose command link for now doesn't show any new links.
No doubt this will be solved after the next update. If not, I'll let you know. Thanks for your concern.
<added>Not unimportant: this whole thingy has no infuence on ranking whatsoever. 5 out of 3,9M on -sj, 5 out of 4.8 mln on www and 5 out of 4,7M on -fi :)</added>
Hitprof, my site is old, but the missing backlinks are (relatively) new. I checked yesterday and the backlink counts on -sj & -fi have increased to 41. I'm confident that Google will eventually find all the links out there. I'm not worried about it.
I was just pointing out that the index on -sj & -fi is old and the differences in actual backlink "droppings" (I'm not referring to the estimated figure which you rightly point out as being more accurate now) are more dramatic for sites that added a lot of links over the last couple of months.
The new backlink numbers for these sites are now almost exactly spot on (hmm.. 387 out of 396 isn't bad).
The 'problem' site 18/31 has turned into 18/18 but rankings are still unaffected.