About ListSignalBot

ListSignalBot is the crawler behind ListSignal, a directory of online businesses. It visits public websites to record basic facts: the technology a site runs, its language, and whether it is a real business. It identifies itself with this User-Agent:

Mozilla/5.0 (compatible; ListSignalBot/1.0; +https://listsignal.com/bot)

What it does

• Fetches a small number of public pages per site, usually one to five.
• Waits at least one second between requests to the same server.
• Visits most sites about once a month.
• Never submits forms, never logs in, never downloads media.

Where it comes from

Every request from ListSignalBot comes from one of these addresses. If you see the User-Agent from any other address, it is not us.

139.180.191.194
149.28.180.28
108.61.94.33
207.246.126.235
95.179.216.41
64.177.122.55
45.76.25.165
45.77.42.191
45.32.147.41
45.76.59.43
45.32.206.187
144.202.62.245
207.148.19.32

How to block it

Add this to your robots.txt and ListSignalBot will not visit again:

User-agent: ListSignalBot
Disallow: /

Blocking the User-Agent at your server or firewall also works. Once a site refuses the bot, it leaves the crawl rotation.

Contact

To have your site removed from ListSignal, or to report a problem with the crawler, email [email protected] with your domain. Removals are processed within two business days and are permanent.