If you haven't heard of Browser Fingerprinting you might want to give this article on Pixel Privacy a read.
This doesn't need cookies it's entirely based on the browser being used and the identification of the hardware it runs on. This means that incognito and cookie blocking is irrelevant as this technique doesn't require cookies and your machine is the same on incognito.
In the past days, we had this article posted
regarding using the GPU on a machine to further allow high precision identification of machines.
As a Tech Lead for Sagittarius marketing who I have been with for the last twelve years. I oversee a team of seven working pods, including numerous developers and contractors in multiple global locations. This involves supporting the developers with coding issues, meetings and phone calls with their clients and going out of pitches with potential new clients.
I have extensive experience building and supporting Sitecore websites from Sitecore 6+ including Helix pattern, I scored 100% in the Sitecore 7 certification exam. Experience managing and maintaining SQL Server, integration with numerous third parties such as Salesforce, AppDynamics, New Relic, Dynamics CRM and many payment gateways.
The first Sitecore website I developed was Skiweekends which was architected and developed by me. It won the Sitecore Experience Award the main award during the Sitecore Experience awards ceremony and the Sitecore Best Travel & Tourism award. I also was lucky enough to perform the first Sitecore 8 upgrade within the United Kingdom for Liberon.
Personally I have had the honour of being recognised in several award ceremonies. Including the BIMA 100 awards in 2019 in the Tech Trailblazers category and previously in the Dev's and Makers category. I’ve been highly commended twice in the Wirehive 100 Techie of the Year awards. Due to my involvement in many aspects of Sagittarius work, many of the awards for their clients I've also been involved in.