Sorry if this subject has appeared at one point or another previously on WebmasterWorld, but has anyone got information on click throughs and PR in relation to SERP from Google? It would really be interesting to see the exact values (of which maybe only really Google knows). This is mostly guess work and probably inaccurate, but I've tried myself to estimate (and research a little for the PR value) the above. Also, I've listed two 'tables' - one for popular keywords, and another for niches. I suppose one could split the tables into even more categories (such as surfers with the intention of shopping etc.), but I'll stick at this for now.
Alongside all these results, the average PageRank estimation of that site positioned at xyz SERP would be very interesting too. This would then indicate how much PR is factored into the equation generally. Once again, this is a little guesswork (mixed with a bit of research this time) on my half - so the real results could be fairly different.
(Bear in mind that all percentages for click throughs will exceed 100%, since the visitor is often inclined to visit more than one site. In other words, it represents the chance of a click through)
Mega-popular 1 or 2 keyword phrases:
SERP 1: 40% chance of that visitor visiting your site if ranked 1st in Google. PR 8.8
SERP 2: 30% chance if ranked 2nd. PR 8.6
SERP 3: 24% ... PR 8.5
SERP 4: 20% ... PR 8.4
SERP 5: 16% ... PR 8.4
SERP 6: 13% ... PR 8.3
SERP 7: 11% ... PR 8.3
SERP 8: 10% ... PR 8.3
SERP 9: 9% ... PR 8.2
SERP 10: 8% ... PR 8.2
SERP 11: 4% ... PR 8.1
SERP 15: 3.8% ... PR 7.7
SERP 19: 3.5% ... PR 7.4
SERP 20: 3.0% ... PR 7.4
SERP 21: 2.4% ... PR 7.4
SERP 25: 2.1% ... PR 7
SERP 29: 1.9% ... PR 6.8
SERP 30: 1.3% ... PR 6.8
SERP 40: 0.7% ... PR 6.6
SERP 50: 0.4% ... PR 6.5
SERP 60: 0.25%... PR 6.4
....... with an approximate halving of click throughs for every 10 places further down perhaps?
Maybe I've got it wrong - perhaps the real results form a different kind of 'curve'. Could there be a formula for this?
Incidentally, approximately 1-2 out of every 100 sites were given (whether deserved or undeserved) the dreaded PR 0. This might even be because the pages are new, so it's wise not to jump to any conclusions. Also, this figure could vary widely for other searches.
Anyway, vastly different results for obscure, and niche keywords - are as follows:
SERP 1: 30% chance. PR 6.6
SERP 2: 27% ... PR 6.45
SERP 3: 24% ... PR 6.3
SERP 4: 22% ... PR 6.1
SERP 5: 19% ... PR 6.0
SERP 6: 17% ... PR 5.9
SERP 7: 15% ... PR 5.8
SERP 8: 13% ... PR 5.7
SERP 9: 11.5%.. PR 5.7
SERP 10: 10% . PR 5.6
SERP 11: 8.5% . PR 5.5
SERP 15: 7.5% . PR 5.3
SERP 19: 7.2% . PR 5.1
SERP 20: 5.7% . PR 5.1
SERP 21: 5.4% . PR 4.9
SERP 25: 5.2% . PR 4.7
SERP 29: 5.0% . PR 4.5
SERP 30: 4.3% . PR 4.5
SERP 40: 3.4% . PR 4.4
SERP 50: 2.6% . PR 4.2
SERP 60: 1.6% . PR 4
....... with an approximate halving of click throughs for every 15 places further down perhaps? Once again, has anyone obtained more accurate information (for even further rankings below SERP 100 too) or a formula for this?
