Google Ads allows for 500 IP exclusions in your campaigns and you'll notice that we use all of them. This is intentional.
If we identify less than 500 bad IPs to be blocked, then we fill the remaining space with the most abusive IPs reported globally. Sites such as http://iplists.firehol.org/ provide a repository of blacklisted, fraudulent, and abusive IPs and we import those, via API, to your exclusion list to help reduce fraud proactively.
If we identify more than 500 bad IPs to be blocked, then we prioritize the bad IPs. So the ones with the highest score are kept in and the lower ones are taken out (e.g. a "7" score would be removed, but a "10" would be kept in). We also have different quarantine schedules for different fraud types - for example, "excessive clickers" are blocked for 30 days, while accidental clicks are only 7 days. In short, we shuffle bad IPs around a lot to maximize the 500 limit.
How to view excluded IPs in your Google Ads account
You can view the excluded IPs in your Google Ads account in your campaign's "Settings" tab:
If you have existing IPs in your Google Ads account that you would like to continue excluding from your campaigns, you will need to copy those and past to your "IP Blacklists" in your Fraud Blocker dashboard.
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