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Help!...How Many Backlinks For PR 10
Will new algo bring back dmoz to PR10
CCowboy

10+ Year Member



 
Msg#: 12828 posted 3:01 am on May 10, 2003 (gmt 0)

How many backlinks does it take for a PR10 ranking?

April:
Dmoz 204,000 - PR9
Nasa 97,000 - PR10
Yahoo 661,000 - PR10

May:
Dmoz 342,000
Nasa 80,200
Yahoo 617,000

I understand why Yahoo had a Pr10. I do not understand why NASA with 97,000 backlinks had a PR10 and Dmoz with 204,000 only had a PR9.

Was the algo that screwed up or was dmoz intentionally brought down or penialized?

Will this New algo and the additional links for dmoz bring back the dmoz PR10?

 

catch2948

10+ Year Member



 
Msg#: 12828 posted 3:14 am on May 10, 2003 (gmt 0)

Heh ... Well, take a look at nfl.com ... Google PR 7?

What's more relevant to footbal than the NFL? :-)

chiyo

WebmasterWorld Senior Member chiyo us a WebmasterWorld Top Contributor of All Time 10+ Year Member



 
Msg#: 12828 posted 3:25 am on May 10, 2003 (gmt 0)

catch2948 - PR is not based on relevance, just the amount (and PR-defined quality of the page "from") of links to a certain page. Relevance does come into play with other parts of the ranking mix/algo such as hypertext anchor links.

CCowboy

10+ Year Member



 
Msg#: 12828 posted 3:33 am on May 10, 2003 (gmt 0)

chiyo

You've been around the block... What do think about my question?

chiyo

WebmasterWorld Senior Member chiyo us a WebmasterWorld Top Contributor of All Time 10+ Year Member



 
Msg#: 12828 posted 3:41 am on May 10, 2003 (gmt 0)

Hi CCowboy.. Sorry i didnt answer.. but I didnt really think i could add much. The only reason i can think of NASA having a high Pr compared to number of backlinks is that the quality of these links is much higher. The PR's you quote i assume are for home pages. Maybe there are lots of "default" or insignificant links back to well known broad resources such as yahoo and dmoz, while NASA may have higher quality links to - from universities, newspapers, scientific sites, serious content sites etc.

When you think about it there is very little *substantive* reason for people to link to the dmoz or yahoo front page as they are so broad, so they probably end up with lots of insignificant, "default" or "automated" links as a proportion. eg, a lot of begining or amateur sites may just include a yahoo home page link to fill up their page!

CCowboy

10+ Year Member



 
Msg#: 12828 posted 3:55 am on May 10, 2003 (gmt 0)

chiyo,

So, are you saying the pages linking to NASA most likely have a higher page rank than those linking to yahoo or dmoz?

chiyo

WebmasterWorld Senior Member chiyo us a WebmasterWorld Top Contributor of All Time 10+ Year Member



 
Msg#: 12828 posted 4:01 am on May 10, 2003 (gmt 0)

yes.. but remember we are talking pages not sites as PageRank is assigned to a page not a site. Soyour figures im assuming are for the "home" or "index" page.

Clark

WebmasterWorld Senior Member 10+ Year Member



 
Msg#: 12828 posted 4:03 am on May 10, 2003 (gmt 0)

Maybe all those sites linking to DMOZ that get a PR0 because they are using the DMOZ RDF DUMP are unfairly not as important in ranking dmoz PR?

CCowboy

10+ Year Member



 
Msg#: 12828 posted 4:13 am on May 10, 2003 (gmt 0)

chiyo,

Yes, I am using the 4x4 tool to the search the home page links.

chiyo

WebmasterWorld Senior Member chiyo us a WebmasterWorld Top Contributor of All Time 10+ Year Member



 
Msg#: 12828 posted 4:17 am on May 10, 2003 (gmt 0)

Good point clark, but if a page is pr0 does it turn up as a "backlink" anyway? I know the common wisdom around here is that PR2's or was it PR4 and below dont turn up in backlink listings. Im no expert as i rarely check the backlink feature.

CCowboy

10+ Year Member



 
Msg#: 12828 posted 4:36 am on May 10, 2003 (gmt 0)

Thanks Guys I'm learning...

Anyone else?

BigDave

WebmasterWorld Senior Member bigdave us a WebmasterWorld Top Contributor of All Time 10+ Year Member



 
Msg#: 12828 posted 5:47 am on May 10, 2003 (gmt 0)

Nasa has a HUGE number of deep links coming in. For the Mercury Transit the other night, no one linked to the Nasa home page, but I'm sure the the transit page and the SOHO page gained thousands of important links. Just like the discussion on nobel.se a couple of months ago, the site has a huge number of deep links and the deep pages all link back to the home page.

CCowboy

10+ Year Member



 
Msg#: 12828 posted 6:17 am on May 10, 2003 (gmt 0)

BigDave,

What do you mean by "deep links"? Do you mean links with high page rank?

RawAlex

10+ Year Member



 
Msg#: 12828 posted 6:17 am on May 10, 2003 (gmt 0)

Remember also the number of good links from places like CNN.COM, FOXNEWS.COM, and thousands of other online newspapers, discussion sites, and even overrated blogs... CNN is certainly an "authority" site, so a link from there is gold.

Just one of those things.

Alex

why2kit

10+ Year Member



 
Msg#: 12828 posted 6:25 am on May 10, 2003 (gmt 0)

If u look at the backlinks for NFL of www,www2 and www3 it goes down from 6 million down to 5 million - what does that say (or is it just a rounding error)

CCowboy

10+ Year Member



 
Msg#: 12828 posted 6:29 am on May 10, 2003 (gmt 0)

Raw Alex

Would my site listed in DMOZ "Top: Arts: Arts-Y: Art stuff" with 15 listings be considered an "authority" site?

Everything I link to with anchor text does very well.

BigDave

WebmasterWorld Senior Member bigdave us a WebmasterWorld Top Contributor of All Time 10+ Year Member



 
Msg#: 12828 posted 6:32 am on May 10, 2003 (gmt 0)

A deep link is a link from another site to one of you inner or "deep" pages.

The "link" command will show you who is linking to that page, it has nothing to do with the site.

I'm going to be bad and post a nasa URL (honest, I don't run the nasa site) [sunearth.gsfc.nasa.gov...] that came up high on a search about the transit of mercury that happened the other day. If you go to that page and do a link: on it, you will see that it has a pile of links directly to that page from other sites.

These links to this page will increase that page's PR which it will then pass on to other pages on the nasa site.

That is deep linking, and that is how high quality content sites get most of their pagerank.

CCowboy

10+ Year Member



 
Msg#: 12828 posted 6:37 am on May 10, 2003 (gmt 0)

BigDave

Good to Know!

So the deep link will distribute page rank through out the site if all pages have some amount of commman links.
Thanks

DarrylParker

10+ Year Member



 
Msg#: 12828 posted 9:00 am on May 10, 2003 (gmt 0)


On another note, I thought I read somewhere that .gov and .org backlinks counted more than a .com backlink.

Is that just because they have more PR on average, or does Google allow a .gov site to pass on more of its PR to a linked site? I bet relatively few people on the planet know. However, if you do a google search for link:www.nasa.gov you get a ton of *.gov backlinks, although most of them come from *.nasa.gov.

No matter what, I'd still like to convince even a single .gov site of any kind to link to my little grey-barred site...

Darryl.

BigDave

WebmasterWorld Senior Member bigdave us a WebmasterWorld Top Contributor of All Time 10+ Year Member



 
Msg#: 12828 posted 9:21 am on May 10, 2003 (gmt 0)

Is that just because they have more PR on average

yes.

The higher PR sites don't need google to cheat for them. Any time anything interesting happens in space, nasa pages gain more links, many of them from high ranked news sites.

The .gov sites are also contain a huge number of pages which gives them an extremely large amount of pagerank to send up to the home pages of their own sites.

The high ranking .gov sites do a lot of linking to each other, but not to a lot of sites outside the .gov world. When they do it is usually to .edu sites.

.edu sites have one thing going for them that not even .gov can claim. In addition to many of the advantages of .gov, they have alumni biograpies and resumes pointing at them.

They also do what every webmaster should be trying to do. They have interesting content. They have things that people *want* to link to.

Monkscuba

10+ Year Member



 
Msg#: 12828 posted 9:29 am on May 10, 2003 (gmt 0)

Deep Links are links to other pages in a site other than the home/index page.

edit - oh slow response, or what? Too busy reading Tom Clancy.

chiyo

WebmasterWorld Senior Member chiyo us a WebmasterWorld Top Contributor of All Time 10+ Year Member



 
Msg#: 12828 posted 9:40 am on May 10, 2003 (gmt 0)

Big Dave, as usual, is a fount of great wisdom and correct information!

i note that somebody at the latest pub confernece did say that the Google rep Matt Cutts confirmed that edu and gov sites do not receive an artificial PR boost as some thought. It is just that they deserve it themselves - earning it from their autority status and objective information - therefore attracting more *Natural* incoming links... => higher PR

Big Dave is also completely correct on the importance of deep links. The home page inherits all this PR if the inner pages link to it, or through sub-sections to the home page. Thanks Dave I forgot about that explanation.

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