Pinpointing PR

Observations to get a better measure of it

[gettoefl]

The Open Directory(OD) from my calculations gives the following PR's

4
5.5
6.75
8

factored to a 10 point scale. You can verify this by seeing that - for example - for a 5.5 site, the green bar is 55% of the full measure (click on properties to see the dimensions of the gif)

[There may be a OD 3? measure too - I couldn't find one.

There may be a OD 9.5? measure too - I couldn't find one.]

Anyways, the figures above is enough to analyse most sites.

Google(G) tool bar gives measurements in the range 1..10.

So here is some analysis:

G  OD    Your page rank lies in here 
5  4    4.5 < R < 4.75 
5  5.5   4.75 < R < 5.5 
6  5.5   5.5 < R < 6.125 
6  6.75   6.125 < R < 6.5 
7  6.75   6.5 < R < 7.375 
7  8    7.375 < R < 7.5 
8  8    7.5 < R < 8.5 

For example, if your PR is 7 according to G and 8 according to OD, then you know your PR is actually between 7.375 and 7.5 which is quite a bit more accurate.

Another thing you can possible do is this:

If you are 1st in the OD of three sites with PR 7G 8OD, then you might say more: Your actual page rank is a little below 7.5. In which case a jump in PR of a meager 0.1 will bring you to a PR 8 on G! So, a few more incoming links should be just the ticket!

I have made some conjectures here, so feel free to set me straight where necessary. The above is based on my observations and threads around here. Also bear in mind, that PR is estimated and does frequently change.

But knowing our PR more precisely is all for the good right.

Mark

[Brett_Tabke]

Hi Mark, where are you getting the 5.5 in your ODP calculations to start?

There are 10 indentations to the pr in the toolbar....
[searchnerd.com...]

[gettoefl]

Thanks for replying with that url; it helps complete some of my gaps. (Plus it looks like some of my numbers above were off.)

At OD, the length of the gif strip used to display page rank is 40 pixels wide. From the above url, the possibilities for the green strip in pixels at the OD are

38
33
27
22
16
11
5

Multiply these numbers by 2.5 to convert to a percent (then divide by 10)

9.5
8.25
6.75
5.5
4.0
2.75
1.25

And so, a PR (1-10) measure is hereby established different from the toolbar.

Taking a given page and seeing its page rank by two measures allows one to form a range into which one's PR falls. It's nice to get a range instead of a raw number, isn't it?

Mark

[Chris_R]

Google changed some of the numbers. I will get on it so people don't get confused. They also added a new PR category for themselves :)

To see what I mean - look at the STILL misaligned page at:

[directory.google.com...]