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Tell HN: Cloudflare silently injects its analytics when you switch nameservers
dchest 1 hours ago [-]
altairprime 30 seconds ago [-]
[delayed]
Animats 21 minutes ago [-]
> injected a JS analytics snippet in my HTML-only JS-free site textlog.cc

Cloudflare injected hostile code into a site they are not even hosting? If it's HTTPS, how do they even do that?

Does it violate the "exceeds authorized access" provision in the Computer Fraud and Abuse Act?

bawolff 8 minutes ago [-]
The most likely answer is the person accidentally enabled the cloudflare reverse proxy without understanding what they were doing.

It seems incredibly unlikely cloudflare does this when just DNS hosting, if for no other reason then that this would break so many things.

stagas 6 minutes ago [-]
I can’t recall if there was a setting to enable reverse proxy, if there was it was On by default since I didn’t expect to have reverse proxy enabled as well. But you can also rp without injecting a script. That’s overdoing it.
Insimwytim 12 minutes ago [-]
> in order to enable R2 bucket serving through my own subdomain

I suspect it happens somewhere here

purpleidea 1 hours ago [-]
Yikes! I see this too:

<script type="module" src="https://static.cloudflareinsights.com/beacon.min.js/v4513226..." integrity="sha512-ZE9pZaUXND66v380QUtch/5sE9tPFh2zg45pR2PB0CVkCtOREv2AJKkSidISWkysEuQ0EH8faUU5du78bx87UQ==" data-cf-beacon='{"version":"2024.11.0","token":"c0859b51a7804ab5a9cc8e9e2b2c4cde","r":1}' crossorigin="anonymous"></script>

kevincox 7 minutes ago [-]
Yup, I explicitly had all anaytics turned off. But had a few sites using Cloudflare for caching. Now I'm checking and seeing this on all of them. This is gross and unacceptable. "Caching" does not mean "modifying my site".
celsoazevedo 1 hours ago [-]
Yes, they add the js if "web analytics" is enabled. I believe I had to manually enable it on my old sites though. Maybe it's enabled by default when adding new domains?
stagas 23 minutes ago [-]
No, I hadn’t enabled for any site. I had to enable first to turn it off.
outlines 23 minutes ago [-]
Are you using CF as a proxy or only for DNS? I ask because I just went to check my domains on the dashboard (some purchased a few years ago, one purchased just a couple days ago), and none of them have Web Analytics enabled.

I have all my domains set to DNS only, so no CF proxy. Wondering if that is why?

stagas 22 minutes ago [-]
I just went and switched them to DNS only, they were on Proxy by default, that also should have been opt-in. Maybe I missed the option while switching the nameservers because I did it in a hurry but still.
monitorion 9 minutes ago [-]
We use Cloudflare tunnels for connecting distributed workers to central infrastructure. Haven't seen this on tunnel traffic, but good to know it happens on nameserver-managed sites. Another reason to audit what your CDN injects — same applies to checking your security headers regularly.
ValentineC 1 hours ago [-]
Took me a minute to realise this isn't 1.1.1.1 (which Cloudflare also runs), but their original website DNS hosting service.
windexh8er 1 hours ago [-]
Isn't this well known when using CF as a proxy? Not sure how they would provide traffic / DDoS telemetry otherwise.
JoshTriplett 59 minutes ago [-]
They're serving the HTML, they have every ability to track individual web requests without modifying the content they're serving.
sscaryterry 53 minutes ago [-]
100% But this does not give you any useful personal data :)
JoshTriplett 52 minutes ago [-]
Or data for the increasingly invasive Cloudflare captcha.
BorisMelnik 60 minutes ago [-]
yep, last website I did was JS free 100% except that pesky cloudflare script
minraws 55 minutes ago [-]
Is there an opt-out mechanism at least? CF is burning goodwill in months it built over the last decade.
busymom0 12 minutes ago [-]
Yes there is. I have it disabled on mine:

https://limereader.com/

pudgywalsh 1 hours ago [-]
You left out the part about how you use them as a reverse proxy, which is decoupled from DNS. One is coincidental; the other required.

If they can inject script, they can also snoop on all your cleartext traffic without you knowing....

stagas 37 minutes ago [-]
Oh gosh I didn’t enable anything like that also. I just wanted the nameservers in order to serve the bucket under my subdomain. What else is there I wonder?
stagas 25 minutes ago [-]
Ok to turn this off you go Domains → Overview → your.site → DNS → Records → then Edit each entry to DNS Only (gray cloud). MITM gone now (I hope).
johntash 55 minutes ago [-]
Indeed. I have several domains using cf for dns only and they don't/can't inject anything into those sites.
csomar 2 hours ago [-]
To add to your experience: It was also very hard, for me, to find the setting that disables this JavaScript.
moktonar 1 hours ago [-]
Surprise! The man in the middle man-in-the-middles! This is only the beginning, when you’ll get used to this they’ll do worse and worse, enshittification, remember?
_def 59 minutes ago [-]
If I wouldn't know it better I'd sometimes think some of the big tech shops are just fronts for centralizing the net.
LoganDark 40 minutes ago [-]
Cloudflare is doing this already. Once they had enough monopoly power, they started a program to block all bots that don't undergo invasive KYC procedures. Eventually, they might become a KYC broker for regular browser users too. The free internet is over.
sssilver 37 minutes ago [-]
#savetheinternet
yogorenapan 26 minutes ago [-]
Noticed this the other day as well. Sketchy as fuck. I didn't have analytics enabled. I had to go and enable to get access to the option to turn this off
49 minutes ago [-]
1 hours ago [-]
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