Use Robots Meta Tag rather than robots.txt when possible [#1032234] | Drupal .org
drupal – Offensive IT
Un informático en el lado del mal: Descubrir usuarios de Drupal con FOCA y ZAP Proxy
Send correct cache headers in 8.x version [#2979171] | Drupal.org
Actually exclude user register, login, logout, and password pages from search results in robots.txt (current rules are broken) [#3123285] | Drupal .org
How to Optimize Your Robots.txt File | Volacci
Using RobotsTxt Module In Drupal 7 - WebWash
Archivo Robots.txt: Qué es y cómo crearlo | Blog de LucusHost
7 - robots.txt encoding issue - Drupal Answers
robots.txt served by drupal for sites employing robotstxt.module · Issue #111 · perusio/drupal-with-nginx · GitHub
Drupal RobotsTxt Module | Volacci
Drupal: robots.txt vs language path prefix - YouTube