The text that follows is owned by the site above referred.
Here is only a small part of the article, for more please follow the link
There are times when you really want to spy (or estimate) another website’s traffic – whether it’s for Competitor Analysis or fun. But how? Well, there are many ways to check another website’s traffic but most of those sources are inaccurate and unreliable. I’m going to tell you exactly how to get the accurate traffic stats of almost any website.
How To Find The Traffic Of A Website
DoubleClick Ad Planner by Google
DoubleClick Ad Planner is a free media planning tool by Google that helps you to find out the websites your potential customers are likely to visit.
Basically Ad Planner is for Google AdWords advertisers but you can use that to estimate the traffic of almost any website. You must be logged in and must accept the DoubleClick Ad Planner Program Terms to use the tool.
Google Ad Planner shows the traffic details of a website if has sufficient data about that domain (in other words it doesn’t show the traffic stats of low traffic websites). From my analysis, I found that they used to show the traffic stats of most websites that gets at least 10,000 unique visitors per month unless the website is not sharing any traffic data with public. (e.g. Google.com).
Ad Planner data is more accurate if the website owner is using Google Analytics and is sharing the data with Google otherwise it shows inflated data. Learn how Google estimates traffic here.
Now, How Did I Verify The Ad Planner Data?
I can say that the Ad Planner shows the most accurate traffic stats of another website when compared with Alexa, Compete, Quantcast etc. I have verified the same using . I selected few websites that was selling site wide banners via BuySellAds.com so that they track the monthly visits and page views. I compared those stats with the Ad Planner data and found that it was comparable to the DoubleClick data.
And I have checked my own Ad Planner traffic stats and confirmed that it is comparable to that of my AWStats data. It’s not showing my Google Analytics traffic stats as I’m not sharing my Google Analytics data with Google.
Google Ad Planner Traffic Statistics for Wikipedia.org
Google Ad Planner Demographic Data of Wikipedia.org
Google Ad Planner Audience Reach – Wikipedia.org
is an online advertising network where publishers can list their ad inventory. If the target website is selling site wide banners via BuySellAds then you can know the exact traffic of that website. All you need to do is check their listing on BuySellAds.com and it shows the exact traffic stats of that domain.
BuySellAds counts the visits only if their script is installed so if the website is showing a site wide banner then most probably their ad script is placed on all pages and you can rely those stats.
There are more sites – Alexa, Compete, comScore, Quantcast, SEMrush – which track another website’s traffic but I wouldn’t trust any of them as they are inaccurate. But you can still use those services as a source of supplement information.