Originally published at tensorust.com .

Short answer: Yes, Europe's internet has a US off switch, and it is not Starlink. I scanned the 100 most-visited sites of every EU country plus the UK (2,789 sites) on Oct 24, 2026: 73.9% rely on an American company for their web hosting, their email or their DNS, and 35.5% rely on one for all three. Cloudflare and Microsoft alone touch more than half of them. You can check your own domain in about 60 seconds with the three commands further down.

TL;DR: Elon Musk's reported order to throttle Starshield for Ukraine made "the US kill switch" a real thing in European capitals this month. So I measured it. Of 2,480 top European sites with all three layers visible, 1,833 use a US company somewhere and 881 are American all the way down. Microsoft or Google runs the email of 49.7% of them. Government domains split hard: 94% of 627 UK government domains lean on a US company, against 19% of 163 French ones.…