98,187,153 browser screens measured on 3,030 sites since July 2007. Use this data today for free!Close

FoldSpy blog

The FoldSpy blog is the place where we keep you updated on the happenings of FoldSpy.

FoldSpy bookmarklet

You can now use FoldSpy on any site with our new one click bookmarklet.

No sign-up required, just drag the link below to your bookmarks bar (or right click and add to bookmarks) and when you want to use FoldSpy, simply click the bookmark and wait four seconds while it loads in the background.

Overlay Foldspy! (Firefox/Safari)

2 million browser screens: the data behind FoldSpy

We’ve had an amazing response to our launch. But one question has cropped-up again and again: where does the FoldSpy data come from and how accurate is it? So I think it’s time to explain that a little better.

Where does it come from?

FoldSpy Free uses data collected from sites of other FoldSpy Free users. When it’s installed on a site, it measures the browser window dimensions of every 3rd visitor. It does all of this quickly and quietly in the background, just like any other good stats software. Every night the data is collected, processed and fed back into the FoldSpy Free system.

How accurate is it?

Our users come from all corners of the globe, with a wide array of sites: from personal blogs to international media outlets. So we’re happy our data is very accurate. But as time goes on, the FoldSpy data will get even more precise.

How fresh is it?

On top of this, we ensure our data is fresh by pruning records older than 30 days. This means you can use FoldSpy Free to watch global trends.

Time for transparency

Since the quality of the data itself is key to the value of FoldSpy Free, we think it’s time to open up and give you a better understanding of what’s going on. So we’ve made changes to our site, and more importantly to FoldSpy Free itself, to show you just how many browser screens we’ve measured and from how many sites. As I type, we’re at 2,287,540 browser screens measured on 1,360 sites!

New Foldspy Stats

Where does FoldSpy Pro come in?

Most people will be happy with the data they get from FoldSpy Free. It provides a very accurate, general view of browser sizes around the globe. But since the visitor profile of every site is different (for example, sites used by designers will, in general, be viewed with much larger screens), the only way to get truly accurate, personalised data, is to use FoldSpy Pro. FoldSpy Pro gives you everything you get in Free, but also records data directly from your site, for every visitor, displaying it separately from the global data. FoldSpy Pro is for… pros!

Introducing FoldSpy

FoldSpy has landed. As an introduction, I’m going to try and answer two very important questions; “What is FoldSpy?” and “Why do I need FoldSpy?”

What is FoldSpy?

Put simply, FoldSpy is a tool for finding out the actual dimensions of your visitor’s browser window. This data was surprisingly difficult to get your hands on, but not any more. Not only does FoldSpy give you access to this data but it presents it in completely new way, the data from FoldSpy is overlayed on your site.

Why do I need FoldSpy?

FoldSpy is most useful for people who need real data to make important layout decisions. It can answer questions like “where do I put this ad if I want 85% of my visitors to see it without scrolling?” Now, you can find the answer in seconds and because the FoldSpy data is displayed in-place, on your site, the answer can be viewed in a way that’s most useful.

FoldSpy is brand new and we would absolutely love to hear your feedback. So, what are you waiting for? Have a look at our screencast or sign up now for free.

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