In case you need to whitelist the AddSearch Bot in your site’s configuration, the best option is to allow it by it’s User-Agent. It is in the form of:
Mozilla/5.0 (compatible; AddSearchBot/1.0; +http://www.addsearch.com/bot/)

The version might differ, but the User-Agent will always contain the identifier “AddSearchBot”.

In case letting our user-agent through is not possible, below is a current list of our bots’ IP addresses.
50.19.247.197
34.234.198.218
34.237.39.240
52.45.51.99
34.237.132.33
52.205.33.118
52.21.18.234
52.22.51.159
18.211.152.50
(Last updated February 29th, 2024)

Additional resources

• Excluding AddSearch Bot from Website’s Traffic Numbers in Google Analytics
• Whitelisting AddSearch To Work With Content Security Policy