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140 posts related to: Tools to check your site’s health

Seven Ways to Beef Up Your Best Pages for the Next Google PR Update

[ Image: Grotesquely muscular older man ]

Time is running out! Soon, it will be time for the next Google PageRank (PR) update. While it is difficult to predict how your site will perform overall, it seems likely that your highest ranking pages will continue to rank well. The idea behind this article is to improve your site’s overall pagerank by totally beefing up your most popular pages. Of course, every page on your site is important. Ideally, you would want to employ these techniques to every […] Continue reading »

Suspicious Behavior from Yahoo! Slurp Crawler

[ Image: Black and white illustration of the upper half of a man's suspicious, paranoid face ]

Most of the time, when I catch scumbags attempting to spam, scrape, leech, or otherwise hack my site, I stitch up a new voodoo doll and let the cursing begin. No, seriously, I just blacklist the idiots. I don’t need their traffic, and so I don’t even blink while slamming the doors in their faces. Of course, this policy presents a bit of a dilemma when the culprit is one of the four major search engines. Slamming the door on […] Continue reading »

Essential HTML Entities

[ Image: Two Hip Characters ]

Virtually every article written here at Perishable Press requires at least one or two “special” HTML characters. Some of these characters — such as quotation marks, hyphens, and dashes — are very common, while others — such as the copyright symbol, bullet, and arrow — happen less frequently. The vast majority of special characters, however, like the latin Ä (i.e., capital letter “A” with a diaeresis), and the mathematical symbol ⊃ (i.e., superset), rarely see the light of day on […] Continue reading »

Slideshow Code for Dead Letter Art

[ Icon: DLa Joker ]

Pardon this post! I am posting this information online for personal references purposes. I may need to revisit this code at some point in the future, and if I post it here I will always know where to find it (trust me, it would disappear into the abyss if I tried storing it offline). So, although it is intended solely for myself, feel free to extract and use anything you like, as long as commented attribution remains. What we have […] Continue reading »

MySQL Magic: Find and Replace Data

Recently, I needed to find and replace all instances of “http://website” in the wp_comments table of the WordPress database. Fortunately, SQL provides a simple way to find and replace data with its wonderful UPDATE function. General Example Using the SQL UPDATE command is straightforward. Here is the general syntax: UPDATE table_name SET field_name = replace( field_name, 'string_to_find', 'string_to_replace' ) ; Simply replace the table_name and both instances of field_name with your specific information, and then edit string_to_find, and string_to_replace with […] Continue reading »

Absolutely Fabulous Browser Bookmarklet Things

[ Image: Fabulous Shot of Immortal's Abbath and Horgh ]

..Or something. Frankly, I just needed an excuse to post these steaming little beauties online. Please note that I don’t lay claim to most of these browser bookmarklet/favelet tricks, but I do find them extremely useful. They are posted here for the sake of convenience and for reference purposes, so use at your own risk (i.e., I am not responsible if they crash your browser). Although I use most of these bad boys with Firefox, I wouldn’t be terribly surprised […] Continue reading »

CSS Throwdown: Preload Images without JavaScript

[ Preload Images with CSS ]

Clean, easy, effective. You don’t need no stinking JavaScript to preload your images. Nope. Try some tasty CSS and (X)HTML instead! Here’s how to do it with only two easy steps.. Step 1 — Place this in your CSS file: div#preloaded-images { position: absolute; overflow: hidden; left: -9999px; top: -9999px; height: 1px; width: 1px; } Step 2 — Place this at the bottom of your (X)HTML document: <div id="preloaded-images"> <img src="https://perishablepress.com/image-01.png" width="1" height="1" alt="" /> <img src="https://perishablepress.com/image-02.png" width="1" height="1" alt="" […] Continue reading »

How to Block IP Addresses with PHP

[ Image: Skeletor Blocks a Move ]

Figuratively speaking, hunting down and killing spammers, scrapers, and other online scum remains one of our favorite pursuits. Once we have determined that a particular IP address is worthy of banishment, we generally invoke the magical powers of htaccess to lock the gates. When htaccess is not available, we may summon the versatile functionality of PHP to get the job done. This method is straightforward. Simply edit, copy and paste the following code example into the top of any PHP […] Continue reading »

SEO 101: Best Practices

[ Image: Abstracted Documents ]

After studying Peter Kent’s excellent book, Search Engine Optimization for Dummies, several key methods emerged for optimizing websites for the search engines. Although the book is written for people who are new to the world of search engine optimization (SEO), many of the principles presented throughout the book remain important, fundamental practices even for the most advanced SEO-wizards. This article divulges these very useful SEO practices and organizes them into manageable chunks. Continue reading »

Harvesting cPanel Raw Access Logs

[ Image: Harvesting the Land ]

For those of you using cPanel as the control panel for our websites, a wealth of information is readily available via cPanel ‘Raw Access Logs’. The cPanel log files perpetually are updated with data. Each logged visit includes information about the user agent, IP address, HTTP response, request URI, request size, and a whole lot more. To help you make use of this potentially valuable information, here is a quick tutorial on accessing and interpreting your cPanel raw access logs. […] Continue reading »

Take Good Care of the Puppy

Of all the bizarre, nonsensical, and pointless spam we have received so far this year, this one takes the cake. It was delivered to our designated spam account earlier this month as a plain-text email, which opens with an explanation. Apparently, “Bob Diamond” is “an Hiring Manager” looking to advertise a couple of important items. The first ad seems remotely realistic, but the second ad.. it’s like, “teddy bear features” out of nowhere — you can’t be serious. Continue reading »

Compressed JavaScript Compression

In this article, we extrapolate our favorite CSS-compression technique for JavaScript. Below, we outline the steps required to auto-compress your JavaScript documents via gzip and PHP. Two different compression methods are presented. The first method does not require htaccess, but rather involves the manual editing of JavaScript files. The second method employs htaccess to do all the work for you, thus requiring much less effort to implement. In either case, the result is the same: automatically compressed content delivered only […] Continue reading »

Fast, Effective PHP Compression

PHP compression is an excellent method of conserving bandwidth and reducing client download times. We have already discussed an excellent method for CSS compression, and in this article we share a super-easy technique for compressing all PHP content without editing a single file. Continue reading »

Flash-Detection Triple-Threat

[ Macromedia Flash ]

In our previous article, Alternate JavaScript Slideshow for SlideshowPro, we present an elaborate method for providing alternate content specifically for SlideshowPro. Although the method points toward a more generalized adaptation, its overall functional implementation remains focused on the presentation of slideshows. Continue reading »

Alternate JavaScript Slideshow for SlideshowPro

[ Photo Slideshow Example ]

For the unenlightened, SlideshowPro (SP) is a Flash-based slideshow-authoring system that delivers full-featured, high-end, Flash-based slideshows. Websites featuring SP slideshows present content in sophisticated fashion, inspiring users with elegant captions, beautiful transitions, and intuitive navigation. However, many visitors are unable to experience SP slideshows because they lack the requisite Flash support. SlideshowPro-based slideshows currently require Flash 7 or better to function. And, although Flash 7 is quite common, it is far from ubiquitous. In the “worst-case” scenario, Flash-challenged visitors will […] Continue reading »

Search Engine Registration Notes

In his excellent book, Search Engine Optimization for Dummies, Peter Kent explains that many search engines actually get their search results from one (or more) of the larger search engines, such as Google or The Open Directory Project. Therefore, the author concludes that it may not be necessary to spend endless hours registering with thousands of the smaller search sites. Rather, the author provides a brief list of absolutely essential search sites with which it is highly recommended to register. […] Continue reading »

Welcome
Perishable Press is operated by Jeff Starr, a professional web developer and book author with two decades of experience. Here you will find posts about web development, WordPress, security, and more »
BBQ Pro: The fastest firewall to protect your WordPress.
Thoughts
Making great strides on my new book. Planned release in December :)
To organize my life, I keep it simple. online: plain text files, offline: sticky notes.
Official list of Googlebot IP addresses.
Lot of 1s in today’s date 20211111.
Working on a new book :)
I enjoy listening to original Star Trek and NG episodes while working online. After a while it feels like I’m working on the ship as part of the crew, going on adventures.
New version (2.6) of my shapeSpace starter theme now available! Always free & open source for everyone :)
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