Home
How to Ban Bad Bots by User Agent in .htaccess?
Tags:, ,

How to Ban Bad Bots by User Agent in .htaccess?

February 12, 2016 No Comments apache server

Some bots are bad. For example 360 bots will crawl as much as it can disregard of overloading the web server. There are some known bad bots, and you can easily ban them by specify a rule in the .htaccess (in the root directory of your domain).

Apache2 server has a handy rewrite-rules configured in .htaccess file under each public folder. Add the following rules to the end of the .htaccess file in the root directory of the website and you are good to go.

1
2
3
4
5

# BEGIN Bad Bot Blocker
SetEnvIfNoCase User-Agent "Abonti|aggregator|AhrefsBot|asterias|BDCbot|BLEXBot|BuiltBotTough|Bullseye|BunnySlippers|ca\-crawler|CCBot|Cegbfeieh|CheeseBot|CherryPicker|CopyRightCheck|cosmos|Crescent|discobot|DittoSpyder|DOC|DotBot|Download Ninja|EasouSpider|EmailCollector|EmailSiphon|EmailWolf|EroCrawler|Exabot|ExtractorPro|Fasterfox|FeedBooster|Foobot|Genieo|grub\-client|Harvest|hloader|httplib|HTTrack|humanlinks|ieautodiscovery|InfoNaviRobot|IstellaBot|Java/1\.|JennyBot|k2spider|Kenjin Spider|Keyword Density/0\.9|larbin|LexiBot|libWeb|libwww|LinkextractorPro|linko|LinkScan/8\.1a Unix|LinkWalker|LNSpiderguy|lwp\-trivial|magpie|Mata Hari|MaxPointCrawler|MegaIndex|Microsoft URL Control|MIIxpc|Mippin|Missigua Locator|Mister PiX|MJ12bot|moget|MSIECrawler|NetAnts|NICErsPRO|Niki\-Bot|NPBot|Nutch|Offline Explorer|Openfind|panscient\.com|PHP/5\.\{|ProPowerBot/2\.14|ProWebWalker|Python\-urllib|QueryN Metasearch|RepoMonkey|RMA|SemrushBot|SeznamBot|SISTRIX|sitecheck\.Internetseer\.com|SiteSnagger|SnapPreviewBot|Sogou|SpankBot|spanner|spbot|Spinn3r|suzuran|Szukacz/1\.4|Teleport|Telesoft|The Intraformant|TheNomad|TightTwatBot|Titan|toCrawl/UrlDispatcher|True_Robot|turingos|TurnitinBot|UbiCrawler|UnisterBot|URLy Warning|VCI|WBSearchBot|Web Downloader/6\.9|Web Image Collector|WebAuto|WebBandit|WebCopier|WebEnhancer|WebmasterWorldForumBot|WebReaper|WebSauger|Website Quester|Webster Pro|WebStripper|WebZip|Wotbox|wsr\-agent|WWW\-Collector\-E|Xenu|yandex|Zao|Zeus|ZyBORG|coccoc|Incutio|lmspider|memoryBot|SemrushBot|serf|Unknown|uptime files" bad_bot
SetEnvIfNoCase Referer "Abonti|aggregator|AhrefsBot|asterias|BDCbot|BLEXBot|BuiltBotTough|Bullseye|BunnySlippers|ca\-crawler|CCBot|Cegbfeieh|CheeseBot|CherryPicker|CopyRightCheck|cosmos|Crescent|discobot|DittoSpyder|DOC|DotBot|Download Ninja|EasouSpider|EmailCollector|EmailSiphon|EmailWolf|EroCrawler|Exabot|ExtractorPro|Fasterfox|FeedBooster|Foobot|Genieo|grub\-client|Harvest|hloader|httplib|HTTrack|humanlinks|ieautodiscovery|InfoNaviRobot|IstellaBot|Java/1\.|JennyBot|k2spider|Kenjin Spider|Keyword Density/0\.9|larbin|LexiBot|libWeb|libwww|LinkextractorPro|linko|LinkScan/8\.1a Unix|LinkWalker|LNSpiderguy|lwp\-trivial|magpie|Mata Hari|MaxPointCrawler|MegaIndex|Microsoft URL Control|MIIxpc|Mippin|Missigua Locator|Mister PiX|MJ12bot|moget|MSIECrawler|NetAnts|NICErsPRO|Niki\-Bot|NPBot|Nutch|Offline Explorer|Openfind|panscient\.com|PHP/5\.\{|ProPowerBot/2\.14|ProWebWalker|Python\-urllib|QueryN Metasearch|RepoMonkey|RMA|SemrushBot|SeznamBot|SISTRIX|sitecheck\.Internetseer\.com|SiteSnagger|SnapPreviewBot|Sogou|SpankBot|spanner|spbot|Spinn3r|suzuran|Szukacz/1\.4|Teleport|Telesoft|The Intraformant|TheNomad|TightTwatBot|Titan|toCrawl/UrlDispatcher|True_Robot|turingos|TurnitinBot|UbiCrawler|UnisterBot|URLy Warning|VCI|WBSearchBot|Web Downloader/6\.9|Web Image Collector|WebAuto|WebBandit|WebCopier|WebEnhancer|WebmasterWorldForumBot|WebReaper|WebSauger|Website Quester|Webster Pro|WebStripper|WebZip|Wotbox|wsr\-agent|WWW\-Collector\-E|Xenu|yandex|Zao|Zeus|ZyBORG|coccoc|Incutio|lmspider|memoryBot|SemrushBot|serf|Unknown|uptime files" bad_bot
Deny from env=bad_bot
# END Bad Bot Blocker
# BEGIN Bad Bot Blocker
SetEnvIfNoCase User-Agent "Abonti|aggregator|AhrefsBot|asterias|BDCbot|BLEXBot|BuiltBotTough|Bullseye|BunnySlippers|ca\-crawler|CCBot|Cegbfeieh|CheeseBot|CherryPicker|CopyRightCheck|cosmos|Crescent|discobot|DittoSpyder|DOC|DotBot|Download Ninja|EasouSpider|EmailCollector|EmailSiphon|EmailWolf|EroCrawler|Exabot|ExtractorPro|Fasterfox|FeedBooster|Foobot|Genieo|grub\-client|Harvest|hloader|httplib|HTTrack|humanlinks|ieautodiscovery|InfoNaviRobot|IstellaBot|Java/1\.|JennyBot|k2spider|Kenjin Spider|Keyword Density/0\.9|larbin|LexiBot|libWeb|libwww|LinkextractorPro|linko|LinkScan/8\.1a Unix|LinkWalker|LNSpiderguy|lwp\-trivial|magpie|Mata Hari|MaxPointCrawler|MegaIndex|Microsoft URL Control|MIIxpc|Mippin|Missigua Locator|Mister PiX|MJ12bot|moget|MSIECrawler|NetAnts|NICErsPRO|Niki\-Bot|NPBot|Nutch|Offline Explorer|Openfind|panscient\.com|PHP/5\.\{|ProPowerBot/2\.14|ProWebWalker|Python\-urllib|QueryN Metasearch|RepoMonkey|RMA|SemrushBot|SeznamBot|SISTRIX|sitecheck\.Internetseer\.com|SiteSnagger|SnapPreviewBot|Sogou|SpankBot|spanner|spbot|Spinn3r|suzuran|Szukacz/1\.4|Teleport|Telesoft|The Intraformant|TheNomad|TightTwatBot|Titan|toCrawl/UrlDispatcher|True_Robot|turingos|TurnitinBot|UbiCrawler|UnisterBot|URLy Warning|VCI|WBSearchBot|Web Downloader/6\.9|Web Image Collector|WebAuto|WebBandit|WebCopier|WebEnhancer|WebmasterWorldForumBot|WebReaper|WebSauger|Website Quester|Webster Pro|WebStripper|WebZip|Wotbox|wsr\-agent|WWW\-Collector\-E|Xenu|yandex|Zao|Zeus|ZyBORG|coccoc|Incutio|lmspider|memoryBot|SemrushBot|serf|Unknown|uptime files" bad_bot
SetEnvIfNoCase Referer "Abonti|aggregator|AhrefsBot|asterias|BDCbot|BLEXBot|BuiltBotTough|Bullseye|BunnySlippers|ca\-crawler|CCBot|Cegbfeieh|CheeseBot|CherryPicker|CopyRightCheck|cosmos|Crescent|discobot|DittoSpyder|DOC|DotBot|Download Ninja|EasouSpider|EmailCollector|EmailSiphon|EmailWolf|EroCrawler|Exabot|ExtractorPro|Fasterfox|FeedBooster|Foobot|Genieo|grub\-client|Harvest|hloader|httplib|HTTrack|humanlinks|ieautodiscovery|InfoNaviRobot|IstellaBot|Java/1\.|JennyBot|k2spider|Kenjin Spider|Keyword Density/0\.9|larbin|LexiBot|libWeb|libwww|LinkextractorPro|linko|LinkScan/8\.1a Unix|LinkWalker|LNSpiderguy|lwp\-trivial|magpie|Mata Hari|MaxPointCrawler|MegaIndex|Microsoft URL Control|MIIxpc|Mippin|Missigua Locator|Mister PiX|MJ12bot|moget|MSIECrawler|NetAnts|NICErsPRO|Niki\-Bot|NPBot|Nutch|Offline Explorer|Openfind|panscient\.com|PHP/5\.\{|ProPowerBot/2\.14|ProWebWalker|Python\-urllib|QueryN Metasearch|RepoMonkey|RMA|SemrushBot|SeznamBot|SISTRIX|sitecheck\.Internetseer\.com|SiteSnagger|SnapPreviewBot|Sogou|SpankBot|spanner|spbot|Spinn3r|suzuran|Szukacz/1\.4|Teleport|Telesoft|The Intraformant|TheNomad|TightTwatBot|Titan|toCrawl/UrlDispatcher|True_Robot|turingos|TurnitinBot|UbiCrawler|UnisterBot|URLy Warning|VCI|WBSearchBot|Web Downloader/6\.9|Web Image Collector|WebAuto|WebBandit|WebCopier|WebEnhancer|WebmasterWorldForumBot|WebReaper|WebSauger|Website Quester|Webster Pro|WebStripper|WebZip|Wotbox|wsr\-agent|WWW\-Collector\-E|Xenu|yandex|Zao|Zeus|ZyBORG|coccoc|Incutio|lmspider|memoryBot|SemrushBot|serf|Unknown|uptime files" bad_bot
Deny from env=bad_bot
# END Bad Bot Blocker

A 403-forbidden error will the thrown out if the ‘user-agent’ string is in the list.

403-forbidden-error How to Ban Bad Bots by User Agent in .htaccess? apache server

403-forbidden-error

–EOF (The Ultimate Computing & Technology Blog) —

GD Star Rating
loading...
582 words
Last Post: The True Exception Handlers in PHP and Javascript
Next Post: Cloudflare and User Agent

The Permanent URL is: How to Ban Bad Bots by User Agent in .htaccess?

Related posts:

  1. Webhosting Review: Disappointing Fasthosts Web hosting, you break my heart I don’t work for fasthosts and I don’t normally write bad reviews but I have...
  2. Algorithm to Check if A String Matches a Pattern Given a pattern and a string str, find if str follows the same pattern. Here...
  3. Algorithms: How to Find N-Repeated Element in Size 2N Array? In a array A of size 2N, there are N+1 unique elements, and exactly one...
  4. Displaying a File with Line Number on Linux Shells There are many ways to show line numbers when displaying text files. For example, in...
  5. Get a Random and Hopefully Interesting Adage Online – Fortune-Teller (API) The linux is a fun place to work at. It provides interesting commands such as...
  6. Why and How to Turn Off Ping (ICMP) for Servers? The ping command is popular and it is often used to tell if a server...
  7. VBA Script to Remove Protected Excel Files Excel spreadsheets can be protected using password, for example, example excel with password protection. Open...
  8. How to Find the Dominant Index in Array (Largest Number At Least Twice of Others)? In a given integer array nums, there is always exactly one largest element. Find whether...

Leave a Reply