Google Kills &num=100 – Impact on Rank Tracking Tools?

Yes, removing num=100 makes deeper tracking harder, but tools will adapt with new methods — your rankings beyond page one can still be tracked, just less directly.

smadaleno said:

Yes, the problem is that to keep the SERP consistent without gaps or missing results, you always need to hit the same datacenters with Google’s IP but using the requesting IP. The issue is that Google can also display a captcha on the paginations, so you have to switch proxies, and then you lose consistency. Because yes, the results change depending on the Google datacenter and the source IP…

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doesn't have to be the exact same IP address, but location is important. same with datacenter btw.
you can also use captcha breaking instead of just switching the proxy.

You're right to be concerned. The removal of the num=100 parameter is a major blow to many SEO tools and confirms that tracking rankings beyond the top 10 has become much harder.
It's not that your articles won't show up, it's that your tools won't be able to easily find and report their position. This forces a strategic shift. You should now focus your efforts on a very clear goal: getting your articles into the top 10.
To see if a new article is ranking at all, the most reliable method is to check Google Search Console. It will show you a keyword's impressions even if you're on page two or three.