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personally i would prefer if google kept PR secret (no display in toolbar and directory) and gave us (searchers, not webmasters) complete results for the "link" command.
I'm seeing a lot of sites that are in the Google index but show no backlinks when the link-tool is used... and they do have PageRank... so this interepretation doesn't seem to make sense.
I have noticed that over the past year Google has been cutting back on the number of back-links reported that they will display. First they were showing just half the links reported, and now only links with a certain PR or above (so I understand; I haven't analyzed this).
I've always wondered - what prevents them from showing inaccurate data?
Also, I have a sinking suspicion that the link: functions doesn't show 1/2 of the URL's - it just says that, but in reality, it's actually displaying all the links. I hypothesized this late one night but can't retrace my mental thoughts in order to provide proof.
I'm seeing a lot of sites that are in the Google index but show no backlinks when the link-tool is used... and they do have PageRank... so this interepretation doesn't seem to make sense.
Robert - could this be because a new page has been added to the index on an existing site since the last update?
Google will show "guessed" pagerank for it based on the known pagerank of index page, but won't show any backward links until the next update.
Could be... They're just pages I run across when assessing a search phrase and figuring out why sites rank. I really don't know.
2_much, etc - As for various Google conspiracy theories, I don't believe they're playing any games with the linking tool.
How can anyone say something is bugged without really knowing how it works?
The link function will tell you that there's nnn back links but the actual number displayed is nnn/2 and sometimes (nnn/2 -1). E.g.: I have a small site with 27 pages in Google. If I ask Google about backlinks, it will show me 24 internal and 4 external links, but will write "Results 1 - 28 of about 56" in the header.
"28 = 56" = bug.
Imagine then the number of webmasters out there who spend time getting link: results for their sites. And then their competitors sites, maybe 30 of them, then checking down 2nd tier link: results (ie who links to the sites that link to my competitors?)
That game can go on for a while, and every one of those searches is, from Googles POV, non-productive. Its just webmasters/SEOs doing research, not adding value to the sites appearing in the results.
I would imagine that the link: search is fairly resource hungry as well. Not knowing exactly how Google stores link information makes it hard to judge, but I would imagine that every URL has a separate table, called from an index table. Thats a fairly large d/base, hence probably fairly CPU intensive.
I wouldn't be surprised if Google has taken a concious decision to restrict the utility of the link: function, because
1) General searchers don't use it, so neglible impact on Googles usability from that angle
2) Restricting the information available to SEOs, making it more difficult to get data to reverse engineer the algo
3) Reduction in server load, thus reducing overhead, and freeing up resources for "proper" searches
It's a no-brainer, really. I don't think they will kill it totally because that only encourages people to go to other places to find that information, which is inviting people to write tools to extract that info from them.
They are letting enough out to keep the masses quiet, without giving everything away
maybe i should add this below my html's: [this site is
optimized by webmasterwold.com], it's just a matter of time before they have the same backlinks as me.
i'd love to see the pr meters and link tools disapear.
besides backlinks are not search results, so why sould google use their bandwith for this?
I would imagine that the link: search is fairly resource hungry as well
I wouldn't be surprised if Google has taken a concious decision to restrict the utility of the link:
i'd love to see the pr meters and link tools disapear.
First they were showing just half the links reported, and now only links with a certain PR or above (so I understand; I haven't analyzed this).
Robert -- I've noticed this too, in particular, it seems that the highest PR sites (I found to link to) in backlinks show up, much fewer listed than before.