Forum Discussion

pinkzeppelin

Altostratus

Apr 10, 2023

How to block web site technologies information with ASM/Advance WAF

Hi, How can we block what technologies are used on our website on ASM to protect web-sites like buildwith.com. Thanks.

security

Daniel_Wolf
Apr 10, 2023
Hi pinkzeppelin,
it is difficult to block sites like builtwith or wappalyzer from profiling your web application.
builtwith offers a site for removing your site data: https://builtwith.com/removals
wappalyzer offers some guidance how to hide the technologies you are using from their scanner: https://www.wappalyzer.com/articles/how-to-hide-technologies-from-wappalyzer/
Also F5 offers some guidance and also some information on why it is difficult to hide your technology: K35304481: Is there any way to prevent ''Wappalyzer'' from detecting my server technology by F5 ASM?
These tools are often using your browser for profiling the technologies of a website. Webservers, frameworks and CMS can be easily identified by Headers, file extensions or cookies. You cannot identify these tools by their user-agent or source IPs. Best you can do is to hide and obfuscate your technology stack.
KR
Daniel

Daniel_Wolf

MVP

I would not know how iRules can help. Both, wappalyzer and builtwith, either come as a browser plugin or they offer an API.

The browser plugin creates a profile of your web application and its technologies from the HTTP responses that your browser gets, it does not add extra requests or headers. You won't even notice that a visitor has it installed in his or her browser.