ZOMDir > Blog

Tuesday, 30 December 2014


In the past I used at a regular base whichloadsfaster.com. Recently I discovered that this website doesn't work any more. Luckily Ryan Witt, who has conceived and written whichloadsfaster, has stored the original code at GitHub. Besides that Ryan has stated at the about page that:
whichloadsfaster is open source, written in HTML and JavaScript and runs entirely on the client-side. You can host the files on your own site and tweak them to suit your own nefarious plans. We promise not to tell.
Although it is not the core business of ZOMDir.com, I created my own version of whichloadsfaster.

whichloadsfaster.zomdir.com is slightly different from the GitHub version.

  • The order of the menu items is more logical;
  • There is now a copyright statement according to the license;
  • Some texts are changed (mainly on the splash screen);
  • The stats (Google Analytics and Clicky) are removed;
  • The default behavior is now serial instead of parallel;
  • There is a favicon now.

The most important change however is the accuracy, now the duration is rounded at 100ms due to the fact that there was a huge deviation when you repeat tests for really fast webpages like example.zomdir.com and example.com.

Hope that this tool give you a clue about the performance of your website.


ZOMDir.com is a dynamic directory and a wiki
Everyone is able to add a link in 10 seconds

To learn more view this Slideshare presentation 

Monday, 8 December 2014

How is DMOZ doing?

Recently I analysed the directory Yahoo! and concluded that it is logical that there will be a shut down. Today I'm analysing DMOZ.org, the Open Directory Project.


Like Yahoo! the structure is a mix of language, location and subject. For example the Dutch page about hotels in Amsterdam has the following breadcrumb path: Top: World: Nederlands: Regionaal: Nederland: Noord-Holland: Gemeenten: Amsterdam: Reizen en Toerisme: Accommodatie: Hotels

While the English page about hotels in Amsterdam has the following breadcrumb path: Top: Regional: Europe: Netherlands: North Holland: Amsterdam: Travel and Tourism: Lodging: Hotels

When you select a category you will notice an horizontal rule between the categories. See also the example below. For me it is unclear why this rule is there. Like Yahoo! cross references are followed by the @ sign. However categories mention under "See also" don't have this @ sign. It is nice that there are links to the same category in other languages.


At each page there is a description available about the current category and the sub categories. That's great. That way you (and the volunteers, the editors) know what to expect.


In principle each category has an editor. When you Google for: site:dmoz.org "category editor" you will find circa 4,800 results. However when you Google for site:dmoz.org "volunteer to edit this category" you will find circa 20,700 results.

That's strange because according to the homepage of DMOZ.org there are 1,023,591 categories and 89,957 editors. So I think it is better to take a sample myself.

When you take a look at the category Arts and open the sub categories (including the cross references) you will find that of the 63 categories there are 18 categories without an editor. So roughly 28% of the categories don't have an editor. Not bad when you realise that the ratio categories to editors is 11 to 1.

Quality of the links

I try to use the same samples as I did with Yahoo!

Sample 1. Top: Society: Genealogy: Heraldry
This page needs an editor. There are 17 links (although the header suggests that there are 24 links). All these links are working, although 1 site is in French and 1 site is in Polish.

Sample 2. Top: Reference: Museums: Arts and Entertainment
This page doesn't need an editor, however it is not clear who the editor is. There are 18 links. 17 links are working and there is 1 broken link.

Sample 3. Top: Society: Subcultures: Hip-Hop: Breakdancing 
This page needs an editor. There are 14 links. All links are working, however 1 link is to the official Website of James Madison University Strength & Conditioning.

Sample 4. Top: Science: Environment: Forests and Rainforests 
This page needs an editor. There are 58 links, of these links there are:

  • 53 working links
  • 3 broken links
  • 1 redirected link (which doesn't redirect automatically)
  • 1 duplicate link
Based on these findings I conclude that the quality of DMOZ.org is much better than Yahoo! 

It is clear to me that nearly 90,000 editors makes a difference. Well done DMOZ.


ZOMDir.com is a dynamic directory and a wiki
Everyone is able to add a link in 10 seconds
To learn more view this Slideshare presentation