Latest TweetsNew version of Disable Gutenberg includes options to disable for specific theme templates and/or post/page IDs. wordpress.org/plugins/disable-…
Perishable Press

Ultimate htaccess Blacklist

[ Image: Solar Eclipse ] 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.

Update: Check out the new and improved 6G Blacklist/Firewall »

Building the Blacklist

There are many ways to obtain an effective htaccess blacklist. There are several excellent forums around the web that provide a plethora of priceless htaccess advice. Highly suggested. Additionally, after copying and pasting your favorite forum blacklist examples to your domain’s root htaccess file, you will want to continue with its development by tracking bandwidth thieves, comment spammers, and site scrapers and adding them to the list.

Or, you may wish to skip the tedious grunt work and simply grab a copy of the Ultimate htaccess Blacklist!

The Ultimate htaccess Blacklist began as a short list of only the most heinous offenders. Blocking scum was such an enjoyable activity that we soon added to the list the identity of every nasty agent we could find. The result has been a very low-stress, spam-free site with virtually zero stolen bandwidth. The list is fairly comprehensive and attempts to blacklist as many site rippers, grabbers, spammers and bad bots as possible. While no blacklist could ever block them all (nor would they want to using this method)1, an elaborate htaccess blacklist can do wonders to improve overall performance, decrease site maintenance, and reduce server expense. Overall, we consider this blacklist a great foundation on which to build and customize your own ultimate htaccess blacklist!2

The Ultimate .htaccess Blacklist

So without further ado, here is our version of the ultimate htaccess blacklist, as promised. Simply copy and paste the following code into the root htaccess file of your site to enjoy a serious reduction in wasted bandwidth, stolen resources, and comment spam. Don’t forget to backup your data and test everything, etc. — After that, you’re good to go!

# Ultimate htaccess Blacklist from Perishable Press
# Deny domain access to spammers and other scumbags
RewriteEngine on
RewriteBase /
RewriteCond %{HTTP_USER_AGENT} almaden [OR]
RewriteCond %{HTTP_USER_AGENT} ^Anarchie [OR]
RewriteCond %{HTTP_USER_AGENT} ^ASPSeek [OR]
RewriteCond %{HTTP_USER_AGENT} ^attach [OR]
RewriteCond %{HTTP_USER_AGENT} ^autoemailspider [OR]
RewriteCond %{HTTP_USER_AGENT} ^BackWeb [OR]
RewriteCond %{HTTP_USER_AGENT} ^Bandit [OR]
RewriteCond %{HTTP_USER_AGENT} ^BatchFTP [OR]
RewriteCond %{HTTP_USER_AGENT} ^BlackWidow [OR]
RewriteCond %{HTTP_USER_AGENT} ^Bot\ mailto:craftbot@yahoo.com [OR]
RewriteCond %{HTTP_USER_AGENT} ^Buddy [OR]
RewriteCond %{HTTP_USER_AGENT} ^bumblebee [OR]
RewriteCond %{HTTP_USER_AGENT} ^CherryPicker [OR]
RewriteCond %{HTTP_USER_AGENT} ^ChinaClaw [OR]
RewriteCond %{HTTP_USER_AGENT} ^CICC [OR]
RewriteCond %{HTTP_USER_AGENT} ^Collector [OR]
RewriteCond %{HTTP_USER_AGENT} ^Copier [OR]
RewriteCond %{HTTP_USER_AGENT} ^Crescent [OR]
RewriteCond %{HTTP_USER_AGENT} ^Custo [OR]
RewriteCond %{HTTP_USER_AGENT} ^DA [OR]
RewriteCond %{HTTP_USER_AGENT} ^DIIbot [OR]
RewriteCond %{HTTP_USER_AGENT} ^DISCo [OR]
RewriteCond %{HTTP_USER_AGENT} ^DISCo\ Pump [OR]
RewriteCond %{HTTP_USER_AGENT} ^Download\ Demon [OR]
RewriteCond %{HTTP_USER_AGENT} ^Download\ Wonder [OR]
RewriteCond %{HTTP_USER_AGENT} ^Downloader [OR]
RewriteCond %{HTTP_USER_AGENT} ^Drip [OR]
RewriteCond %{HTTP_USER_AGENT} ^DSurf15a [OR]
RewriteCond %{HTTP_USER_AGENT} ^eCatch [OR]
RewriteCond %{HTTP_USER_AGENT} ^EasyDL/2.99 [OR]
RewriteCond %{HTTP_USER_AGENT} ^EirGrabber [OR]
RewriteCond %{HTTP_USER_AGENT} email [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^EmailCollector [OR]
RewriteCond %{HTTP_USER_AGENT} ^EmailSiphon [OR]
RewriteCond %{HTTP_USER_AGENT} ^EmailWolf [OR]
RewriteCond %{HTTP_USER_AGENT} ^Express\ WebPictures [OR]
RewriteCond %{HTTP_USER_AGENT} ^ExtractorPro [OR]
RewriteCond %{HTTP_USER_AGENT} ^EyeNetIE [OR]
RewriteCond %{HTTP_USER_AGENT} ^FileHound [OR]
RewriteCond %{HTTP_USER_AGENT} ^FlashGet [OR]
RewriteCond %{HTTP_USER_AGENT} FrontPage [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^GetRight [OR]
RewriteCond %{HTTP_USER_AGENT} ^GetSmart [OR]
RewriteCond %{HTTP_USER_AGENT} ^GetWeb! [OR]
RewriteCond %{HTTP_USER_AGENT} ^gigabaz [OR]
RewriteCond %{HTTP_USER_AGENT} ^Go\!Zilla [OR]
RewriteCond %{HTTP_USER_AGENT} ^Go!Zilla [OR]
RewriteCond %{HTTP_USER_AGENT} ^Go-Ahead-Got-It [OR]
RewriteCond %{HTTP_USER_AGENT} ^gotit [OR]
RewriteCond %{HTTP_USER_AGENT} ^Grabber [OR]
RewriteCond %{HTTP_USER_AGENT} ^GrabNet [OR]
RewriteCond %{HTTP_USER_AGENT} ^Grafula [OR]
RewriteCond %{HTTP_USER_AGENT} ^grub-client [OR]
RewriteCond %{HTTP_USER_AGENT} ^HMView [OR]
RewriteCond %{HTTP_USER_AGENT} ^HTTrack [OR]
RewriteCond %{HTTP_USER_AGENT} ^httpdown [OR]
RewriteCond %{HTTP_USER_AGENT} .*httrack.* [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^ia_archiver [OR]
RewriteCond %{HTTP_USER_AGENT} ^Image\ Stripper [OR]
RewriteCond %{HTTP_USER_AGENT} ^Image\ Sucker [OR]
RewriteCond %{HTTP_USER_AGENT} ^Indy*Library [OR]
RewriteCond %{HTTP_USER_AGENT} Indy\ Library [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^InterGET [OR]
RewriteCond %{HTTP_USER_AGENT} ^InternetLinkagent [OR]
RewriteCond %{HTTP_USER_AGENT} ^Internet\ Ninja [OR]
RewriteCond %{HTTP_USER_AGENT} ^InternetSeer.com [OR]
RewriteCond %{HTTP_USER_AGENT} ^Iria [OR]
RewriteCond %{HTTP_USER_AGENT} ^JBH*agent [OR]
RewriteCond %{HTTP_USER_AGENT} ^JetCar [OR]
RewriteCond %{HTTP_USER_AGENT} ^JOC\ Web\ Spider [OR]
RewriteCond %{HTTP_USER_AGENT} ^JustView [OR]
RewriteCond %{HTTP_USER_AGENT} ^larbin [OR]
RewriteCond %{HTTP_USER_AGENT} ^LeechFTP [OR]
RewriteCond %{HTTP_USER_AGENT} ^LexiBot [OR]
RewriteCond %{HTTP_USER_AGENT} ^lftp [OR]
RewriteCond %{HTTP_USER_AGENT} ^Link*Sleuth [OR]
RewriteCond %{HTTP_USER_AGENT} ^likse [OR]
RewriteCond %{HTTP_USER_AGENT} ^Link [OR]
RewriteCond %{HTTP_USER_AGENT} ^LinkWalker [OR]
RewriteCond %{HTTP_USER_AGENT} ^Mag-Net [OR]
RewriteCond %{HTTP_USER_AGENT} ^Magnet [OR]
RewriteCond %{HTTP_USER_AGENT} ^Mass\ Downloader [OR]
RewriteCond %{HTTP_USER_AGENT} ^Memo [OR]
RewriteCond %{HTTP_USER_AGENT} ^Microsoft.URL [OR]
RewriteCond %{HTTP_USER_AGENT} ^MIDown\ tool [OR]
RewriteCond %{HTTP_USER_AGENT} ^Mirror [OR]
RewriteCond %{HTTP_USER_AGENT} ^Mister\ PiX [OR]
RewriteCond %{HTTP_USER_AGENT} ^Mozilla.*Indy [OR]
RewriteCond %{HTTP_USER_AGENT} ^Mozilla.*NEWT [OR]
RewriteCond %{HTTP_USER_AGENT} ^Mozilla*MSIECrawler [OR]
RewriteCond %{HTTP_USER_AGENT} ^MS\ FrontPage* [OR]
RewriteCond %{HTTP_USER_AGENT} ^MSFrontPage [OR]
RewriteCond %{HTTP_USER_AGENT} ^MSIECrawler [OR]
RewriteCond %{HTTP_USER_AGENT} ^MSProxy [OR]
RewriteCond %{HTTP_USER_AGENT} ^Navroad [OR]
RewriteCond %{HTTP_USER_AGENT} ^NearSite [OR]
RewriteCond %{HTTP_USER_AGENT} ^NetAnts [OR]
RewriteCond %{HTTP_USER_AGENT} ^NetMechanic [OR]
RewriteCond %{HTTP_USER_AGENT} ^NetSpider [OR]
RewriteCond %{HTTP_USER_AGENT} ^Net\ Vampire [OR]
RewriteCond %{HTTP_USER_AGENT} ^NetZIP [OR]
RewriteCond %{HTTP_USER_AGENT} ^NICErsPRO [OR]
RewriteCond %{HTTP_USER_AGENT} ^Ninja [OR]
RewriteCond %{HTTP_USER_AGENT} ^Octopus [OR]
RewriteCond %{HTTP_USER_AGENT} ^Offline\ Explorer [OR]
RewriteCond %{HTTP_USER_AGENT} ^Offline\ Navigator [OR]
RewriteCond %{HTTP_USER_AGENT} ^Openfind [OR]
RewriteCond %{HTTP_USER_AGENT} ^PageGrabber [OR]
RewriteCond %{HTTP_USER_AGENT} ^Papa\ Foto [OR]
RewriteCond %{HTTP_USER_AGENT} ^pavuk [OR]
RewriteCond %{HTTP_USER_AGENT} ^pcBrowser [OR]
RewriteCond %{HTTP_USER_AGENT} ^Ping [OR]
RewriteCond %{HTTP_USER_AGENT} ^PingALink [OR]
RewriteCond %{HTTP_USER_AGENT} ^Pockey [OR]
RewriteCond %{HTTP_USER_AGENT} ^psbot [OR]
RewriteCond %{HTTP_USER_AGENT} ^Pump [OR]
RewriteCond %{HTTP_USER_AGENT} ^QRVA [OR]
RewriteCond %{HTTP_USER_AGENT} ^RealDownload [OR]
RewriteCond %{HTTP_USER_AGENT} ^Reaper [OR]
RewriteCond %{HTTP_USER_AGENT} ^Recorder [OR]
RewriteCond %{HTTP_USER_AGENT} ^ReGet [OR]
RewriteCond %{HTTP_USER_AGENT} ^Scooter [OR]
RewriteCond %{HTTP_USER_AGENT} ^Seeker [OR]
RewriteCond %{HTTP_USER_AGENT} ^Siphon [OR]
RewriteCond %{HTTP_USER_AGENT} ^sitecheck.internetseer.com [OR]
RewriteCond %{HTTP_USER_AGENT} ^SiteSnagger [OR]
RewriteCond %{HTTP_USER_AGENT} ^SlySearch [OR]
RewriteCond %{HTTP_USER_AGENT} ^SmartDownload [OR]
RewriteCond %{HTTP_USER_AGENT} ^Snake [OR]
RewriteCond %{HTTP_USER_AGENT} ^SpaceBison [OR]
RewriteCond %{HTTP_USER_AGENT} ^sproose [OR]
RewriteCond %{HTTP_USER_AGENT} ^Stripper [OR]
RewriteCond %{HTTP_USER_AGENT} ^Sucker [OR]
RewriteCond %{HTTP_USER_AGENT} ^SuperBot [OR]
RewriteCond %{HTTP_USER_AGENT} ^SuperHTTP [OR]
RewriteCond %{HTTP_USER_AGENT} ^Surfbot [OR]
RewriteCond %{HTTP_USER_AGENT} ^Szukacz [OR]
RewriteCond %{HTTP_USER_AGENT} ^tAkeOut [OR]
RewriteCond %{HTTP_USER_AGENT} ^Teleport\ Pro [OR]
RewriteCond %{HTTP_USER_AGENT} ^URLSpiderPro [OR]
RewriteCond %{HTTP_USER_AGENT} ^Vacuum [OR]
RewriteCond %{HTTP_USER_AGENT} ^VoidEYE [OR]
RewriteCond %{HTTP_USER_AGENT} ^Web\ Image\ Collector [OR]
RewriteCond %{HTTP_USER_AGENT} ^Web\ Sucker [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebAuto [OR]
RewriteCond %{HTTP_USER_AGENT} ^[Ww]eb[Bb]andit [OR]
RewriteCond %{HTTP_USER_AGENT} ^webcollage [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebCopier [OR]
RewriteCond %{HTTP_USER_AGENT} ^Web\ Downloader [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebEMailExtrac.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebFetch [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebGo\ IS [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebHook [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebLeacher [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebMiner [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebMirror [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebReaper [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebSauger [OR]
RewriteCond %{HTTP_USER_AGENT} ^Website [OR]
RewriteCond %{HTTP_USER_AGENT} ^Website\ eXtractor [OR]
RewriteCond %{HTTP_USER_AGENT} ^Website\ Quester [OR]
RewriteCond %{HTTP_USER_AGENT} ^Webster [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebStripper [OR]
RewriteCond %{HTTP_USER_AGENT} WebWhacker [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebZIP [OR]
RewriteCond %{HTTP_USER_AGENT} ^Wget [OR]
RewriteCond %{HTTP_USER_AGENT} ^Whacker [OR]
RewriteCond %{HTTP_USER_AGENT} ^Widow [OR]
RewriteCond %{HTTP_USER_AGENT} ^WWWOFFLE [OR]
RewriteCond %{HTTP_USER_AGENT} ^x-Tractor [OR]
RewriteCond %{HTTP_USER_AGENT} ^Xaldon\ WebSpider [OR]
RewriteCond %{HTTP_USER_AGENT} ^Xenu [OR]
RewriteCond %{HTTP_USER_AGENT} ^Zeus.*Webster [OR]
RewriteCond %{HTTP_USER_AGENT} ^Zeus
RewriteRule ^.* - [F,L]

Update

To reduce confusion and consolidate htaccess rules, the last two lines have been removed from the blacklist. These two lines are not required for the blacklist to work as intended:

RewriteCond %{HTTP_REFERER} ^http://www.iaea.org$
RewriteRule !^http://[^/.]\.perishablepress.com.* - [F,L]

Footnotes

  • 1 Although this blacklist is highly effective at eliminating unwanted scum, its immense length requires extra processing and may affect the performance of your server. In our experience, employing this list (along with several other htaccess directives) for over two years has resulted in zero noticeable performance issues. Nonetheless, this may not be an ideal solution for sites with extreme levels of visitor traffic.
  • 2 To begin building your own customized blacklist, you may want to check out the excellent list offered at joemaller.com. Thanks, Joe!

Jeff Starr
About the Author Jeff Starr = Creative thinker. Passionate about free and open Web.
Archives
72 responses
  1. ok Michael,

    but please try to re-send it, just in case, because I’ve clean my junk-mail box just before seen your post.
    thx

  2. Hi Sirius,

    I believe I have a conflicting statement in my htaccess file because I feel confident that your recommendation is very grounded.

    Could you please check your email inbox for an email from infoAthewellbeinghalo.com containing the htaccess statements that may be preventing your suggestion from working out for me?

    Michael

  3. Hi Sirius,

    I just forwarded that email from infoAthewellbeinghalo.com

    Thank you for that. You should sign up for ageLOC Vitality, thewellbeinghalo.com/catalog.html for being so nice.

    Michael

  4. Haus kaufen trotz Schufa June 15, 2011 @ 11:04 pm

    This web page won’t display correctly on my apple iphone – you may want to try and fix that

  5. any chance or news of compact list … this is excellent list … but want more agents and light weight script for it …

  6. I’ve put this code into my apache2.conf file, but when I include the “RewriteBase /” line I get the following error

    Syntax error on line 269 of /etc/apache2/apache2.conf:
    RewriteBase: only valid in per-directory config files
    …fail!

    Do I need to have that line? When I removed it I did not get the error anymore

    Thanks

  7. Jeff Starr

    It’s not required, just comment it out with a # sign and see if it works. Here is official info on RewriteBase:

    http://httpd.apache.org/docs/current/mod/mod_rewrite.html#rewritebase

  8. Have any idea how to blacklist for bad word like sex, … by htaccess. Can I make redirect site to home page when visitor search for bad words.
    Thanks

  9. Benjamin Hansen April 1, 2013 @ 1:06 pm

    just curious if this list is still effective 7 years on.

    • Jeff Starr

      Yes, but not as effective as bots tend to change and disappear, replaced by new ones. This list has since evolved into the G-series blacklist/firewall.. check out the 5G Blacklist 2013 for something more current.

      • Benjamin Hansen April 1, 2013 @ 1:46 pm

        just found that after posting this :/ thanks for the pointer anyway and the lists!

  10. Thanks a log for the list , I am getting traffic from this UA :
    -Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)

    And Ip’s used are different all the time. First I want to know it is bad UA using different ip’s and secondly if its bad then how to block it using .htaccess, Thanks for your reply in advance

[ Comments are closed for this post ]