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Web Dev + WordPress + Security
91 posts

Over 150 of the Worst Spammers, Scrapers and Crackers from 2007

Over the course of each year, I blacklist a considerable number of individual IP addresses. Every day, Perishable Press is hit with countless numbers of spammers, scrapers, crackers and all sorts of other hapless turds. Weekly examinations of my site’s error logs enable me to filter through the chaff and cherry-pick only the most heinous, nefarious attackers for blacklisting. Minor offenses are generally dismissed, but the evil bastards that insist on wasting resources running redundant automated scripts are immediately investigated […] Continue reading »

Blacklist Candidate Number 2008-02-10

Welcome to the Perishable Press “Blacklist Candidate” series. In this post, we continue our new tradition of exposing, humiliating and banishing spammers, crackers and other worthless scumbags.. Like many bloggers, I like to spend a little quality time each week examining my site’s error logs. The data contained in Apache, 404, and even PHP error logs is always enlightening. In addition to suspicious behavior, spam nonsense, and cracker mischief, this site frequently endures automated and even manual attacks targeting various […] Continue reading »

Blacklist Candidate Number 2008-01-02

Welcome to the Perishable Press “Blacklist Candidate” series! In this first post, we begin a new tradition of exposing, humiliating and banishing spammers, crackers and other worthless scumbags.. Every Wednesday, I take a little time to investigate my 404 error logs. In addition to spam, crack attacks, and other deliberate mischief, the 404 logs for Perishable Press contain errors due to missing resources, mistyped URLs, and the occasional bizarre or even suspicious behavior of the search-engine robots. Whenever possible, I […] Continue reading »

Ultimate .htaccess Blacklist 2: Compressed Version

In our original htaccess blacklist article, we provide an extensive list of bad user agents. This so-called “Ultimate htaccess Blacklist” works great at blocking many different online villains: spammers, scammers, scrapers, scrappers, rippers, leechers — you name it. Yet, despite its usefulness, there is always room for improvement. Continue reading »

How to Verify the Four Major Search Engines

Keeping track of your access and error logs is a critical component of any serious security strategy. Many times, you will see a recorded entry that looks legitimate, such that it may easily be dismissed as genuine Google fare, only to discover upon closer investigation a fraudulent agent. There are many such cloaked or disguised agents crawling around these days, mimicking various search engines to hide beneath the radar. So it’s always a good idea to implement a procedure for […] Continue reading »

WordPress Spam Battle: 3 Seconds that will Save You Hours of Time

In the hellish battle against spam, many WordPress users have adopted a highly effective trinity of anti-spam plugins: Akismet Bad Behavior Spam Karma This effective triage of free WordPress plugins has served many a WP-blogger well, eliminating virtually 99% of all automated comment-related spam. When spam first became a problem for me, I installed this triple-threat arsenal of anti-spam plugins and immediately enjoyed the results. Although Spam Karma seemed a little invasive and resource-intensive, too much protection seemed far better […] Continue reading »

Hacking WordPress: The Ultimate Nofollow Blacklist

Several days ago, I posted an article explaining how to hack your own WordPress nofollow blacklist. Immediately thereafter, I published an elaborate article focusing on automatic methods of nofollow blacklisting via WordPress plugins. In this article, I expand on the original blacklist hack by incorporating functional differentiation between commentator links, trackbacks, and pingbacks. If anything, think of this as an exercise in hacking WordPress, rewarding in and of itself, if not otherwise entirely impractical. Of course, whenever possible, you should […] Continue reading »

Hacking WordPress: Dofollow Whitelist for Commentator Links

Before repenting of my filthy “nofollow” addiction, I experimented briefly with a “dofollow whitelist” for commentator URL links. The idea behind the whitelist is to reward frequent commentators, feed subscribers, site patrons, and other guests by selectively removing the automatically generated nofollow attributes from their associated comment-author links. For nofollow enthusiasts, a dofollow whitelist is a great way to show appreciation for people who support your blogging efforts. Now, before we go hacking away at WordPress, keep in mind that […] Continue reading »

WordPress Plugins Featuring Nofollow Blacklist Functionality

Is that spam or are you just trying to comment? Removing nofollow attributes from your WordPress-powered site is a great way to encourage comments and attract visitors. Many commentators will leave useful, constructive feedback, but there will always be a few losers who would attempt to game your generous link love. Fortunately, identifying these mindless link whores is relatively easy. Here are a few priceless examples of actual spam (i.e., linked) comments left here at Perishable Press (links removed for […] Continue reading »

Hacking WordPress: Nofollow Blacklist for Commentator Links

Previously, in our unofficial “WordPress dofollow upgrade” series, we dished several techniques for removing the antisocial nofollow attributes from default installations of WordPress. After an exhaustive review of available dofollow plugins, we explained how drop-dead easy it is to transform any WordPress blog into a well-standing member of the dofollow community without relying on a plugin to do the job. Our next article detailed a nofollow removal hack that selectively targets pingbacks, trackbacks, and commentator links. Then, we went off […] Continue reading »

Ultimate htaccess Blacklist

For those of us running Apache, htaccess rewrite rules provide an excellent way to block spammers, scrapers, and other scumbags easily and effectively. While there are many htaccess tricks involving blocking domains, preventing access, and redirecting traffic, Apache’s mod_rewrite module enables us to target bad agents by testing the user-agent string against a predefined blacklist of unwanted visitors. Any matches are immediately and quietly denied access. 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 »
GA Pro: Add Google Analytics to WordPress like a pro.
Thoughts
2 things I hate to see in stylesheets: _ and #
Love VLC media player but it fails miserably when it comes to randomizing large collections of mp3 and other files.
Dashlane redesigned, stating proudly they "removed all filigree". Should have kept it; the app now looks generic and boring. Killed your identity.
Working on integration for setaPDF + EDD on the new books subdomain. Good times.
Toggle visibility of hidden files on Mac: Cmd + Shift + .
Great tool for checking browser caching for web pages and all included files.
The new minimalist design styled by 14KB of CSS (uncompressed and un-minified). That covers 850+ posts and pages spanning 15 years of diverse content.