Block Tough Proxies
If you want to block tough proxies like hidemyass.com, my previously posted .htaccess methods won’t work. Those methods will block quite a bit of proxy visits to your site, but won’t work on the stealthier proxies. Fortunately, we can use a bit of PHP to keep them out. Continue reading »
Ajax-Powered Error Logs
As an obsessive website administrator, I like to keep a keen eye on my error logs. Once a week, I download my PHP, 404, and other error logs, and analyze them as closely as time allows. Monitoring site errors and other traffic patterns leads to many of the security-related articles I post here at Perishable Press, including resources such as the 5G Blacklist, Ultimate HTAccess Blacklist, and the Blacklist Candidate Series. Easily, one of the best ways to protect your […] Continue reading »
Upload Large Files or Die Trying
I recently spent some time wrestling with various e-commerce/shopping-cart/membership plugins. One of them was of course the popular WP e-Commerce plugin, which uses a directory named “downloadables” to store your precious goods. I had some large files that needed to go into this folder, but the server’s upload limit stopped me from using the plugin’s built-in file uploader to do so. Continue reading »
Humans.txt
One thing I love about Twitter is the instant feedback. For the past few weeks I’ve been seeing lots of 404 requests like this: https://perishablepress.com/humans.txt https://perishablepress.com/humans.txt https://perishablepress.com/humans.txt At first I thought it was some skript kiddie getting creative, you know as a play on the robots.txt file, which is also located in the root of many websites. So it seemed interesting enough to tweet about: Continue reading »
Multiple Sitemaps
Yes you can have multiple sitemaps for your site. Create the sitemaps you need, and then specify them in your robots.txt file. For example, here are the robots.txt directives for the two sitemaps used here at Perishable Press: Continue reading »
10 Characters for Your WordPress Blacklist
Quick WordPress tip for easily and quietly blocking a ton of comment spam. Akismet and other programs are good at catching most spam, but every now and then a bunch of weird, foreign-language spam will sneak past the filters and post live to your site. Here’s a good example of the kind of stuff that’s easy to block: Continue reading »
Awesome New CSS3 Selectors
The W3C CSS Working Group introduced some powerful new CSS3 selectors to the working CSS3 specification. These new selectors aren’t yet supported by all browsers (currently only Webkit and IE), but designers can start using all the goodness a la progressive enhancement. Let’s check out these awesome new CSS3 selectors and see some real-world examples that are simply too good to be true. Continue reading »
Ajax RSS Feeds with More Sidebar
After implementing Chris Coyier’s More Sidebar technique here at Perishable Press, I needed a good source of “filler” content for the “more” blocks. After experimenting with multiple loops and template tags, the idea of sliding in RSS feeds seemed like a better solution. Replacing some empty space with great content is a win-win for everyone. For example, I display a few of my recent tweets in the sidebar to help fill a lil’ space. It’s a great way to share […] Continue reading »
PHP Tip: Encode & Decode Data URLs
Converting small images to data-URLs is a great way to eliminate HTTP requests and decrease loading time for your pages. Using PHP‘s base64_encode() and base64_decode() functions, we have the power to convert images to data-URLs and vice-versa. This article explains how it all works, and shows some different ways of converting back and forth between original and encoded images. Continue reading »
Ajax Slide & Fade Content with jQuery
I recently redesigned my business site, Monzilla Media. The new design features a clean and simple single-page, fixed-sidebar layout. Visitors use the various links in the fixed sidebar to quickly and automatically scroll through to any section. In the Portfolio section, each item contains a “Details” link that loads more content into the fixed sidebar. As the site is mostly static, I wanted this bit of functionality to really shine, and after much testing and tweaking, ended up with a […] Continue reading »
CSS3 Tip: Removing Box Shadows
Adding box shadows is a great way to bring depth and focus to your design. You have probably seen this trick before: .selector { -webkit-box-shadow: 0 3px 5px #333; -moz-box-shadow: 0 3px 5px #333; box-shadow: 0 3px 5px #333; } Continue reading »
Hacked by Google?
The setup: I recently launched a new plugin that included a Demo page. To keep things flexible, I set up the Demo as a page on my experimental “Labs” WordPress installation, which is entirely nofollow, noindex and noarchive, meaning that Google can’t legitimately see what’s there. Continue reading »
Display Latest Tweet with Show/Hide Cookies
My previous theme displays my latest tweet at the top of every page. It turned out to be an excellent technique for getting more followers – visitors see the tweet, click the link, and possibly follow me on Twitter. There is even a cookie-powered “Hide” link for uninterested visitors to hide the tweet for awhile. I received quite a few requests for a tutorial on the technique, so here is how to display your latest tweet with show/hide cookies. For […] Continue reading »
Clean Up Malicious Links with HTAccess
I recently spent some time analyzing Perishable Press pages as they appear in the search results for Google, Bing, et al. Google Webmaster Tools provides a wealth of information about crawl errors, as well as the URLs of any pages that link to missing content. Combined with your site’s access/error logs, you have everything needed to track down 404 errors and clean up your listings in the search engine results. Continue reading »
Better Robots.txt Rules for WordPress
Cleaning up my files during the recent redesign, I realized that several years had somehow passed since the last time I even looked at the site’s robots.txt file. I guess that’s a good thing, but with all of the changes to site structure and content, it was time again for a delightful romp through robots.txt. This post summarizes my research and gives you a near-perfect robots file, so you can copy/paste completely “as-is”, or use a template to give you […] Continue reading »
Online Tools for DNS, CHMOD, Data URLs
I’ve always liked the idea of having an “Asides” category for links, notes, and other miscellaneous debris. So here is the first aside post, classified in the newly established asides tag (woo-hoo!). Here are three awesome tools to optimize your workflow. Continue reading »
