I recently changed the permalink structure of this WordPress blog, going from /%year%/%monthnum%/%day%/%postname%/ (WordPress default i think) to the much more elegant and simple /%postname%/. This is very cool ofcourse, both because it’s simpler and SEO wise, but on an existing blog, this leaves you with lots of links that point to the wrong URL. [...]

It keeps amazing me that I keep seeing people use robots.txt files to prevent sites from being indexed and thus showing up in the search engines. You know why it keeps amazing me? Because robots.txt doesn’t actually do the latter, even though it does prevent your site from being indexed. Let’s go through some terms [...]

I’ve been working on one of the largest WordPress MU projects we’ve taken on so far the last couple of days. We’ve been migrating the blogo.nl blogs (a Dutch blog network started in 2005) over to WordPress MU. There were several things in this project that were nice to figure out, I’ll go over two [...]

The system requirements of Magento are quite extensive, it requires at least PHP 5.2.0 extended with mcrypt, PDO_MySql and simplexml. For the database Magento needs at least MySQL 4.1.20 with InnoDB storage engine. At MagentoCommerce.com you can find a complete list of requirements. But how do you know if your server meets these system requirements? [...]

It’s now almost a year after the world saw the first stable release of Magento, and there was still no “definitive guide” to Magento SEO. A lot has been written on the subject, in the Magento forum and some blog posts, but nothing that gives a complete overview of this subject. It’s time to let [...]

A friend recently asked me how to move his blog, which is on /blog/ on his domain, to a new domain on it’s own. The steps are easy, but have to be taken in the right order to make sure you’re not annoying your users and the search engines: Put up a robots.txt on the [...]

Ever since the announcement on the Google Blog and more recently Yahoo’s announcement that they’ve enhanced their support for it, I’ve been meaning to play with the X-Robots-Tag header. This HTTP header allows you to do what you’d normally do in a robots meta tag, in an HTTP header, which has some pretty cool appliances. [...]

The single most requested feature for my robots meta plugin was to have the ability to add noindex tags to specific posts and pages from within the write post and write page admin screens. I’ve now fixed that, with the release of version 2.0 of this plugin! For those that have not updated since 1.4: [...]

There’s no easy way to add meta robots tags to WordPress pages, unless of course, when you install this plugin. A quick video on how to use this plugin: This plugin makes it possible (and very easy) to: Prevent indexing of your search result pages, while still allowing the search engines to follow the links [...]

This query gives a result I hadn’t seen before (image), the same page was indexed with both a single trailing forward slash, which is of course normal, and with a double trailing forward slash… This is of course a duplicate content issue, especially when people link to the double slash one by accident. The fix [...]