You don't need any traffic to place Adsense on your site. Usually I start thinking about Adsense when I hit the 200 - 300 daily visitor mark but I don't wait when starting a blog. As for how much traffic for decent revenue? It all depends on your niche.
No, Google doesn't look at your traffic. But, to answer your question, the amount of traffic required to make good Adsense revenue depends on your site. A site with good content, lots of keyword-rich pages, based on well-paying keywords (high CPC), well-placed Adsense ads, with ads that are relevant to the interests of its visitors (high CTR), and only moderate traffic can make good money. On the other hand, a site with millions of visitors a day but with poorly targeted content (a personal blog?), Adsense ads not particularly related to the interests of visitors (low CTR), based on low-paying keywords (low CPC), will make very little money, regardless of traffic. I wish there were a simple answer to your question, but there isn't.
You don't need any traffic. However, unless you have a MFA site, you probably need at least 100 visitors per day to make it worth your while.
Depends what you mean by "decent income". If you have 3% CTR (by the way... check out this tips on getting higher CTR), and you have 100,000 pageviews monthly (here's thread with some traffic tips) and have $0.10 average clicks. With this... your income would be: 100,000 pageviews x 0.03 CTR = 3000 clicks 3000 clicks x $0.10 = $300 income. If you get million pageviews, then it would be $3,000 If you can also double your CTR rate, you are talking about $6,000 If you also double your keyword paying rate, we are at $12,000.
^^ It doesnt work that well trust me, adsense income does not scale in proportion to traffic im doing about ~600,000 adsense page impressions / ~15,000 clicks / ~14,000 search queries per day @ ~$250 to ~$650 in adsense depending whether the sites get site targeted
Well, obviously the site income fluctuates, and so does the quality of traffic. That has been my experience as well. Naturally, if you double your traffic and halve your CTR... then of course you won't get any more income I suppose I should have said "if you double your traffic and have the same quality of visitors"... the point I wanted to make is that those different factors must be considered.
thats true tho its hard to double the quality traffic i cant exactly put a note on my site turning away users from poorer countries "your country doesnt pay well with adsense, so f**k off" tho i seen sites do things along them lines which is very sad not to mention return users grow blind to adsense very quickly
There is no significant impact of the traffic on the adsense income. Of course, when the traffic goes up, the chances of your ads getting clicked increases. Assume that only 10 unique visitors are visiting your site and 5 click the ads. Then compare it with 1000 unique visitors, clicking only 2 or 3 ads. Which one will generate higher income. Definitely the first one. The secret? You have to make the visitors to click your ads (and not yourself! you will banned for that!!) How?? It is the ad placement that matters. The ad has to be perfectly camouflaged with the contents so that the visitor is attracted towards the ad. That's all. Hope you will get good income through the adsense
Nowadays, you can camouflage as best as you can, and still not get many clicks. Traffic is still the most important thing, TechCrunch makes a lot of money and most of the visitors are webmasters, so it is down to their numbers more than anything else. This is just an example.