A client needed to know what subdomains were on their domain. I couldn’t find a tool that included this information, so I found a Python library that scraped subdomains and added a simple export to csv function. I used other APIs to add the server info and status code.
Since this is an ad hoc script that didn’t need to be shared with the client, I didn’t wrap it in an app interface. I kept it a script. For this screenshot, I just entered nbc.com. They were not the client I created the script for.
Clients are typically very surprised when they see just how many subdomains they have floating out there. Sometimes the subdomains have a lot of links (and thus authority) and would benefit the main subdomain if they were 301 redirected to the main site.
