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Home > User-Agent > oBot

oBot

Bot Description:

oBot is the web crawling bot of the Content Security Division of IBM Germany Research & Development GmbH. We use several computers to crawl webpages and a large computer cluster to categorize the content of these pages. The result of this analysis is a compact webfilter database that is made available to our customers in several content filtering products including an SDK for OEM partners. Using several algorithms we can assign more than 65 different categories (http://www.cobion.com/support/techsupport/dbcategories/) to webpages.

http://filterdb.iss.net/crawler/

Mozilla/5.0 (compatible; oBot/2.3.1; +http://filterdb.iss.net/crawler/)

Have you dealt with this bot before?

Controlling this bot on your site:

Below are some methods to control the access that this bot (title) has to your site and or pages. The methods below may not work if the bot does not pay attention to the limits you have established. Select a method: Robots.txt, Meta Tags, htaccess,

Using Robots.txt:

A Robots.txt file is placed in the root of your website. Good bots will first look for and review the robots.txt file before either continuing on to other pages on your site or leaving if they are not allowed. For more information about robots.txt files, visit robotstxt.org.

Do not allow any bot (user-agent) to access any part of your site
User-agent: *
Disallow: /

Allow any bot (user-agent) to access any part of your site
User-agent: *
Disallow:

Do not allow oBot to access any part of your site
User-agent: oBot
Disallow: /

Allow oBot to access any part of your site
User-agent: oBot
Disallow:

Allow oBot to access your site, but oBot is not allowed to access the "admin" folder
User-agent: oBot
Disallow: /admin

Allow oBot to access your site, but oBot is not allowed to access the "admin" folder and the "photos" folder
User-agent: oBot
Disallow: /admin
Disallow: /photos

Using Meta Tags:

You can use meta tags in your pages to help control the access bots have to your site. If you use a template for all your pages, you can add the meta tags in between the <head> and </head> and it will work on all the pages using that template. If you want to control specific pages, you can add the meta tags on individual pages in between the <head> and </head> instead.

Allow all bots to access your page(s)
<meta name=”robots” content=”index” />

Allow all bots to access your page(s) and follow links on the pages
<meta name=”robots” content=”index, follow” />

Allow all bots to access your page(s) but do not allow them to follow links
<meta name=”robots” content=”index, nofollow” />

Do not allow any bots to access your page(s)
<meta name=”robots” content=”noindex” />

Allow oBot to access your page(s)
<meta name="oBot" content="index">

Do not allow oBot to access your page(s)
<meta name="oBot" content="noindex">

Allow oBot to access your page(s) and follow the links to more pages
<meta name="oBot" content="index, follow">

Using HTACCESS:

You may have the ability to add and or modify an htaccess file on your server. The htaccess file can be used to control the bots at the server level. Add the following to the .htaccess file on your server to block specific bots from visiting your site. Be sure to replace the Enter User Agent with the user-agents for the bots you would like to block simliar to the user-agent (oBot) listed in the example below.

SetEnvIfNoCase User-Agent ^$ bad_bot #leave this for blank user-agents
SetEnvIfNoCase User-Agent "^oBot" bad_bot
SetEnvIfNoCase User-Agent "^Enter User-Agent" bad_bot
SetEnvIfNoCase User-Agent "^Enter User-Agent" bad_bot
SetEnvIfNoCase User-Agent "^Enter User-Agent" bad_bot
SetEnvIfNoCase User-Agent "^Enter User-Agent" bad_bot

<Limit GET POST HEAD>
Order Allow,Deny
Allow from all
Deny from env=bad_bot
</Limit>

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