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Category: web

iโ€™ll take rerun requests

If you write a comment-provoking post (such as that one), you’d better deal with the reactions.

As often, the bluntest comment came from the Granada-Antwerp commuter (aka “mewt” for ‘memories of a weird traveler’…)

Javier :

Concerning the participation on the math-related posts, it is true that what you write has become more readable along the years, but yet, being able to read one of your math posts and catch the idea of what is going on (which I think is a great thing to do) is one thing. Actually understanding the details is a completely different one. And possibly most people thinks that commenting around when you only got the general idea (if any) of some math topic would be rather bold.

Personally, with your 2 last posts concerning Connes-Bost systems I am interested on understanding the story in full detail, so I printed your first post, took it home, read it carefully, made all the computations on my own (not that I dont trust yours, but you never know!) and before I had finished getting a sound impression of what was going on, the second part was already online, so had to go through the same process (in top of usual duties) just to keep your rythm. If things go as usual, by the time I am ready to make any sensible comments, you’ll be already bored of the topic and have switched to something else, so it won’t make much sense commenting at all!If its comments what you’re lasting for, write short, one-idea posts, rather than long, technically detailed ones.

The good news is that my posts become slightly more understandable. But all things can be improved… so, here’s a request :

If there is this one post you’d love to understand if only you knew already the material I subconsciously assumed, tell me or leave a comment!

and I’ll try to improve on it…

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block google analytics cookies

When more than 200.000 websites are using google analytics, a one-man action proposed last time to de-activate GA on neverendingbooks is pretty useless. Perhaps a better alternative is :

When you use google analytics on your site, announce this and add a link to CustomizeGoogle BLOCK GOOGLE ANALYTICS COOKIES. Your visitors can then decide whether or not to block google analytics cookies only.

Or link to this post, as I’ll give a detailed step-by-step instruction so that even web-newbies can protect themselves agains google analytics stalking cookies.

1. Surf using a Firefox-clone Because CustomizeGoogle “is a Firefox extension that enhances Google search results by adding extra information (like links to Yahoo, Ask.com, MSN etc) and removing unwanted information (like ads and spam)” it only works on Firefox-like browsers. Screenshots below use Flock, the mac “social web browser”.

2. Go to CustomizeGoogle BLOCK GOOGLE ANALYTICS COOKIES and click on the Install Now! link (upper right)

3. A warning message will appear saying “Flock prevented this site from asking you to install software on your computer”. As we do want to install, click on the Edit Options button (on the left).

4. A pop-up window appears and click on the allow-button.

5. Click again on the Install Now! link from CustomizeGoogle. A pop-up will appear asking you to confirm installation of the extension. Click on the install-buttom (right below).

6. Installation complete! But you have to restart before you can use it. Click on the restart button and Flock will do it.

7. Select under Flock/Tools CustomizeGoogle Options.

8. A pane pops up with plenty of configurable options.

9. Select “Privacy” and mark the ‘Don’t send any cookies to GoogleAnalytics’ option.

10. Done! You can now surf to any of the 200.000+ google-analytics-powered sites without being stalked!

Using this feature makes you more anonymous. But your visit on a single webpage can still be logged. This way, both Google and the owner of the website knows that someone visited a webpage, but it’s difficult to track all pages you’re visiting. And it’s really really hard for Google to track that you visited both Website A and Website B.

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top 5 analytics tips

Google analytics is collecting data on this site for over a month now. Perhaps it is time to share a few lessons Ive learned over this period.

UPDATE : I have de-activated all google analytics plugins on this site. I may re-activate them for short periods later but ONLY to detect problems or to check on plugin performance. I will announce this in the sidebar with a ‘this site contains google analytics script code’-sticker. I encourage people using google analytics stalking code to do the same.

1. Aim at the generic visitor, not the specific

Analytics offers an amazing amount of data, in debatable detail. For example, via the map-overlay one can zoom in to specific towns and communities. When combined with other data, such as new/returning visitors etc., this quickly becomes borderline stalking. So, repress that urge to check-out whether someone you know is reading your blog, and how often, and how long, and how deep, and … Use analytics only to get an idea of what the generic visitor does with your site.

2. There is a world outside your blog

Don’t get obsessed by analytics-data and, certainly, do not feel that you have to react to it, all the time! For example, below the evolution of the number of visitors coming here over the last month

The dramatic fall in attendance from last friday until this monday might have worried me (when obsessed). However, a quick check gave a similar drop for the number of new visitors and the number of search-engine referrals. Probably, people were, at that time, more interested in the stock-market-crisis than in this blog… Besides, most people visiting here come from the US and I learned that they had a Luther King vacation day, so perhaps lots of them enjoyed a prolonged week-end, away from their computer.

3. Detect & correct major, lasting changes

So, forget about temporary blips. However, when a certain trend has every indication of becoming permanent, it might be the moment to check out what is going on. Below the bounce rate-evolution over the last month

This is what you might call a lasting drop! Fortunately this time I knew what was going on, because of the actions described in the bounce rate post. But, when you detect a similar drop in certain stats it is time to figure out the causes. Perhaps you de-activated by mistake a certain plugin (see below), or something is wrong with your server, or…

4. Check-out plugin performance

There are tons of WordPress plugins, some useful, some less. So it is best to check whether activating a plugin has the desired effect. For example, you should be able to detect installation of an SEO-plugin (for, Search Engine Optimalization) in the Traffic Sources/Search Engines graph, installing and using a tagging-plugin should give you more referrals from Technorati and look-a-likes, etc.

5. Don’t take it too seriously

You can use analytics data just for fun! For example, do a quiz, show visitor-data and ask for global events explaining the graph (as above). Or notice quirks in your data. For example, here the time-on-site graph over the last month

My generic visitor seems to have a cyclic attention-span…

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