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Simple IP-Detection Bad for SEO

In general, Perishable Press enjoys generous ranking in Google’s search-engine results. The site’s many pages bring in lots of traffic for some great keywords, and a direct search for “Perishable Press” returns the first spot, with eight featured site links even. And recently, after switching servers, traffic increased even further. […]

Print Version of Digging into WordPress 3.0

Just a note to let everyone know about the new printed editions of Digging into WordPress 3.0. This is the latest version of DiW, featuring revamped core content, new graphics, popouts and asides, as well as a new chapter devoted entirely to WordPress 3.0. It’s certainly packed with WordPress goodness, […]

Lessons Learned after 5 Years of Blogging

This Fall, I celebrate five years of blogging. I have written tons of web development stuff at Perishable Press, lots of helpful WordPress stuff at Digging into WordPress, some creative/artistic stuff at Dead Letter Art, jQuery stuff at jQuery Mix, and some business-related web-design stuff at Monzilla Media. Plus a […]

Stop 404 Requests for Mobile Versions of Your Site

If you’ve been keeping an eye on your 404 errors recently, you will have noticed an increase in requests for nonexistent mobile files and directories, especially over the past year or so. The scripts and bots requesting these files from your server seem to be looking for a mobile version […]

Quick and Easy CSS @font-face Code

I’ve been using custom fonts in my designs for quite a few sites now, and have refined what seems to be an ideal chunk of CSS code for implementing the @font-face rules. Some of the sites that include these rules include Perishable Press and Digging into WordPress, which look more […]

3 Ways to Track Web Pages with Google Analytics

Many bloggers, designers, and developers take advantage of Google’s free Analytics service to track and monitor their site’s statistics. Along with a Google account, all that’s needed to use Google Analytics is the addition of a small slice of JavaScript into your web pages. For a long time, there was […]

Stupid WordPress Tricks

One of the most popular articles here at Perishable Press is my January 2005 post, Stupid htaccess Tricks. In that article, I bring together an extensive collection of awesome copy-&-paste HTAccess code snippets. Four years later, people continue to tell me how much they enjoy and use the content as […]

Perfect Pre Tags

If you operate a website that features lots of code examples, you know how important it is to spend some quality time styling the <pre></pre> element. When left unstyled, wild <pre></pre> tags will mangle your preformatted content and destroy your site’s layout. Different browsers treat the <pre></pre> tag quite differently, […]

How to Protect Your Site Against Content Thieves

Stolen content is the bane of every blogger who provides a publicly available RSS feed. By delivering your content via feed, you make it easy for scrapers to assimilate and re-purpose your material on their crap Adsense sites. It’s bad enough that someone would re-post your entire feed without credit, […]

Tell Google to Not Index Certain Parts of Your Page

There are several ways to instruct Google to stay away from various pages in your site: Robots.txt directives Nofollow attributes on links Meta noindex/nofollow directives X-Robots noindex/nofollow directives ..and so on. These directives all function in different ways, but they all serve the same basic purpose: control how Google crawls […]

CSS Hacks for Different Versions of Firefox

In a perfect world, I don’t use CSS hacks, and certainly don’t recommend them. In the unpredictable, chaos of the real world, however, there are many situations where applying styles to particular browsers is indeed the optimal solution. Most of the time, I am targeting or filtering Internet Explorer (because […]

5-Minute PNG Image Optimization

A great way to improve the performance of your site is to optimize the size of your images. Smaller image sizes require less bandwidth, disk space and load time, and ultimately improve visitor experience. In this article, I share my effective 5-minute technique for optimizing PNG images. This is a […]

Best Practices for Error Monitoring

Given my propensity to discuss matters involving error log data (e.g., monitoring malicious behavior, setting up error logs, and creating extensive blacklists), I am often asked about the best way to go about monitoring 404 and other types of server errors. While I consider myself to be a novice in […]

Import and Display RSS Feeds in WordPress

Importing and displaying external RSS feeds on your site is a great way to share your online activity with your visitors. If you are active on Flickr, Delicious, Twitter, or Tumblr, your visitors will enjoy staying current with your updates. Many social media sites provide exclusive feeds for user-generated content […]

4G Series: The Ultimate User-Agent Blacklist, Featuring Over 1200 Bad Bots

As discussed in my recent article, Eight Ways to Blacklist with Apache’s mod_rewrite, one method of stopping spammers, scrapers, email harvesters, and malicious bots is to blacklist their associated user agents. Apache enables us to target bad user agents by testing the user-agent string against a predefined blacklist of unwanted […]

Building the Perishable Press 4G Blacklist

Last year, after much research and discussion, I built a concise, lightweight security strategy for Apache-powered websites. Prior to the development of this strategy, I relied on several extensive blacklists to protect my sites against malicious user agents and IP addresses. Unfortunately, these mega-lists eventually became unmanageable and ineffective. As […]