Not asking for tech support here, just wondering if in theory it would be possible to create a plug-in or even a complete browser that blocks ads in a way that’s impossible to detect. One model that comes to mind is a quarantined / containerized non-blocking virtual browser which queries the web server directly, then the UX filters the content from that container and presents it to the user ad-free. As far as the web server can tell, the containerized browser is just vanilla Chromium.

uBlock Origin already does

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3 points

I wasn’t aware it did this, but it gets detected all the time, unfortunately.

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1 point

i think greasemonkey could do this with scripts like load ads into a 0 pixel window or something maybe

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1 point

I assume if the client is undetectable that ads will escalate to phoning home for viewing confirmation, and then to something even more dumb once we beat that.

It’s an arms race, it’s probably silly to think we can just outright win for once and all.

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1 point

…and then to something even more dumb once we beat that.

E.g. “please drink verification can.”

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5 points

It doesn’t matter how good your browser is when you can only access content through an app.

That’s the way things are headed, I’m afraid. In a few years you won’t be able to load Facebook, Youtube, Reddit, or Twitter(formally X) from a browser.

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6 points

Bleak but probably true. Cabin in the woods with a good book is my future.

What do you mean all the woods are “gone”?

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2 points

Paper books won’t be available either. You’ll be watching ads in your cabin where the woods used to be.

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2 points

An ad-blocking DNS server on your local network should work for apps too, right? (As long as the ads are hosted on known ad servers.)

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3 points

Should, yes, but the page/site may have ways to detect if the ad loads or not and still trigger “adblock in use”.

A DNS-based approach also won’t work if the ads come from the same domain as the content.

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3 points

They do still have to cater to desktop users, so I imagine accessible websites for those platforms will exist for many years to come.

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5 points

This is also yet another reason why it’s important to defend desktops in the face of people who think phones and tablets are “good enough.”

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3 points

“Just download our app on the Microsoft Store/App Store!” /s

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39 points
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The way you’ve described it is basically how it would have to work.

Various ad-blocking detection technologies basically boil down to loading some element on the page and then querying for it during/after rendering to see if it’s still there. This could be combined with an AJAX call to load the actual content, which is how all those annoying sites work that pop a nag up in your face if you’re running uBlock or whatever. And even then you don’t get the content even if you subsequently block the nag notice.

A truly undetectable adblocker would still have to pull down and load all the ad content and render it somewhere (invisibly in the background, presumably) and then serve a second cut down version of that page with the ad elements not rendered.

Edit to add: This would be somewhat detrimental to the user, because it would by necessity not stop the types of tracking that are typically built into served ads. Current adblockers (like uBlock Origin) also by default also block various advertisers’ nonsense like cross-site tracking cookies and tracking pixels, etc.

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13 points

Thanks, this is the sort of info I was looking for.

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3 points

Well, yes and no. The shadow browser could randomize its signature and purge temp files in each load, or something like that. Or maybe even reverse-engineer the expected payload structure from major advertisers and send garbage back to them.

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