Email Reliability: use an SPF record

6 July 2011 by Joost de Valk » - 23 Comments

A while back I outlined my system for preventing comment spam. One of the core fundamentals in there is that I send people an email to verify their email address before their comment is published. For this to work well, I need to trust on my email to be received. As it turns out, email »

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Custom Post Type Snippets to make you smile

17 June 2011 by Joost de Valk » - 20 Comments

Custom Post Type goodness

So it’s friday, I’ve been coding all day and I thought I’d share some of the cool snippets I’ve come across and/or developed today. I’ve mostly been working with Custom Post Types and Taxonomies, so let me share some of that goodness. Let’s geek out in a bit, but first let me show you why »

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Change domain, and warn your visitors

9 June 2010 by Joost de Valk » - 7 Comments

When you change domains, for instance using my moving WordPress to a new domain guide, you’ll usually redirect your visitors with something looking like this: The only issue with this is that people might not notice that you’ve moved to a new domain, and thus might not update their links to you. As Matt Cutts »

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The Full mailto Link Syntax

27 October 2008 by Joost de Valk » - 29 Comments

For a small project I had to create a smart mailto link to make my life a bit easier. I wanted the mailto link to hold not only a to and the subject (I’d figured that much out) but a multi lined body too. Turns out that is pretty darn easy to do. So, for »


WordPress Goodies

16 June 2008 by Joost de Valk » - 4 Comments

A small update to say I’ve fixed one plugin and added another resource for WordPress fanatics. First of all, I used to think that with the release of WordPress 2.3 and 2.5, the need for my Permalink Redirect plugin had gone away. However, I noticed that some friends of mine had loads of indexed URL’s »

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Table sorting JavaScript

14 June 2008 by Joost de Valk » - 4 Comments

Unobtrusive and with alternating row colors Sections: example table quick start donate download Related pages: changelog tutorial Ramon Eijkemans pointed me to a script written by Stuart Langridge. This unobtrusive table sorting script was awesome, offering sort mechanisms for text, numbers, dates and currencies, by simply adding an external script to a page and a »


Added a print CSS style sheet

2 March 2008 by Joost de Valk » - 16 Comments

Today, I checked an item off on my todo list that had been on there way too long: I created a print style sheet for this site. Every time I write an article that is longer than 5 paragraphs, I get emails from readers asking for a better print style sheet. Until just a few »

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PHP-APC: Speed up your web applications!

8 April 2007 by Joost de Valk » - 15 Comments

As regular readers of this blog might know I have written quite some tools using the different API’s of search engines, and always found them quite useful. When I was implementing my sitewide search function, one of the things that bothered me that it was a bit slow. I knew that I had seen some »

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Implementing a sitewide search function

6 April 2007 by Joost de Valk » - 1 Comment

Those of you coming to this site more often might have noticed a small change in the search box. It’s now implemented sitewide, and I’ve built a sitewide search functions using the Yahoo! API. It was quite nescessary because I found that people were searching for “sortable.zip” on the blog, and they wouldn’t find anything »

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PHPSESSID in your URL? Learn to 301 redirect them with PHP

30 March 2007 by Joost de Valk » - 19 Comments

I’m doing some work on a site which has like 4,500 pages indexed with a PHPSESSID in the URL, causing some major duplicate content problems. I got the server admin to disable the PHPSESSID’s by adding the following to the vhost config: I also wanted Google to get a clean URL when it decided to »

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