Summary

Publically available  Bitbucket site gets displayed in search results when we do browser searches (that is, Google, Bing, etc.) with search strings like "<company_name> bitbucket" or "bitbucket <company_name>". Web crawlers index the Bitbucket site and add it to the search index. 

Sometimes, It is undesirable to get Bitbucket site as part of the search and expose details (such as Bitbucket version, etc.), and this article provides solutions to this problem. 

Environment

• Applicable for all Bitbucket Data Center versions.
• Publically available Bitbucket site.

Cause

By default, the built-in robots.txt response is empty, which allows the instance to be crawled. robots.txt may be accessed anonymously as that is how it can direct web crawler based on preferred configurations.

Solution

Bitbucket server 5.11 introduces the ability to configure  robots.txt.

Administrators can create and place their robots.txt in $BITBUCKET_HOME/shared. Adding the file to the shared home ensures it is preserved across upgrades, and all cluster nodes for Data Center installations return the same response.

User-agent: *
Disallow: /

Configurations mentioned in robot.txt will determine Allow and Disallow conditions for various User-agents (for example, Googlebot, Bingbot, Yandex Bot, Apple Bot, etc.) 

There are multiple ways in which Allow, Disallow and User-agent can be configured to achieve different outcomes based on user's need.  How to configure robot.txt - can help to dive deep into options.