Detection can be based on the IPs themselves, no packet tricks required. Plenty of services can do that: https://focsec.com/
Now of course, if your VPN is a home-lab style VPN where you are connecting to a little wireguard box sitting in your own home, that is a totally different story.
I use VPN most of the time. My work requires it, and I like Mozilla VPN for personal privacy. (Note: it has ad blocking DNS built in which is nice!)
I occasionally get blocked by websites or services, especially streaming apps, if I'm on VPN. I suspect they're just looking out for Amazon/Microsoft/etc IP address blocks. It's very annoying
Mozilla VPN runs on Mullvad who are transparent and publish active server and IP lists https://mullvad.net/en/servers.so trivial to block them without blocking all of Azure/GCP/AWS[1]
There are also third party providers of IP annotations to classify known VPN address ranges that content providers typically subscribe to blanket block providers.
The reason for this aggressive approach is streaming apps all need your IP as core signal for tagging your region and all content licensing is region locked (even on YT).
Netflix are/were the most relaxed about it , and for long time would only buy content if they got global distribution rights, but not anymore. Many VPN ads specifically used to market that you can watch Netflix geolocked content.
[1] IME they block DC IPs too although not needed for blocking professional VPN, even self hosted OpenVPN on cloud box usually gets flagged.
That list is the IPs users connect to. It is entirely distinct from the list of IPs the VPN traffic egresses from. I doubt believe that they publish their egress ranges.
That's not the same. You get blocked because the IP address you're coming from is associated with a VPN list, not because they're analyzing the traffic in detail.
The simplest methods block known datacenter IP ranges like you thought. More will score it based on several heuristics and a reputation over time. If you get 100 different users connecting from a single IP, it's probably not someone's home internet connection.
Depends on how you define "reliably". You can get pretty damn close by triangulating on traffic patterns and browser fingerprinting. There is a lot of research in this area. But it'll never be perfect.
A lot of law is adjudicated based on the intent, not the black-and-white definition. Proxying your traffic thru a friend's house (VPS in another location, etc) would be considered a "VPN" by a court. Definitional hacks, for the most part, don't fly with judges.
To handle the matter technically Utah would need a "great firewall of Utah" and a legislative mandate that all ISPs route thru it. Somehow they'd have to factor-in signals from cellular sites neighboring states and satellites.
This requires a lot of extra work though, and extra work is downward pressure on the behavior (underage people looking at pornography) that the state of Utah is trying to exert downward pressure on.
The inability to immediately and perfectly eliminate a behavior is not a good enough reason to be against any attempt to eliminate that behavior.
> The inability to immediately and perfectly eliminate a behavior is not a good enough reason to be against any attempt to eliminate that behavior.
So if you are legally required to block all VPN users and then fail to actually block all VPN users what is stopping you from being punished for not complying with the law?
Yes but isn't it suspicious that all your traffic goes to the friend's house and not to Facebook and Reddit? If you claim it is not a VPN does it mean your friend is providing illegal unlicensed hosting? That's even worse.
Split tunnel is a thing, and in that instance the platform required to comply (like a porn site) doesn’t have any way to see all your traffic to determine if it’s a VPN/proxy connection or not.
If you cannot determine the traffic type, you can block it and wait until someone appears with proper documentation and explains what they were sending.
That's what the judge agreed with: it's unreasonable to require you to block all Internet traffic with the assumption it's all VPN traffic until proven otherwise.
Under Utah's law as written, a private business has to assume any single IP address could be operating a VPN/proxy.
You do not need to know "reliably". You can block everything remotely suspicious, and in case someone is blocked by mistake, they can file an application with all necessary documentation proving the connection is not a VPN.
There are a category of things that are technically impossible until a burly man threatens to break your arm if you don't do them, and a category of things that are still impossible.
Doesn't help your arm, but when they're asking for things in that second category, it doesn't help them either.
I remember talking about voting fraud with an indian friend. He said it was more overt in india - a burly guy would grab your finger and make it press the "correct" voting machine button.
>As we’ve said time and time again: the internet will always route around censorship.
Is this still true, or has it become a truism? It seems nations like Iran and China (and events like Kashmir come to mind) have progressed the state-of-the-art and playbook to where we can't actually say it definitively will route around it.
Now seeing that the US and EU are flirting with these similar restrictions it's making me wonder how we'll be able to keep hold of these principles.
Maybe my concern with that adage is ultimately its passive voice, since it takes 'active' action by people to give us those options, and will probably take more actions by more people to keep it alive now.
The thing China can do, and does do: Kill your network connections, whether that's a TCP session, your ability to send or receive packets with some particular IP addresses, or at the extreme armed men show up and now it's not an Internet problem.
Things China can't do: Magically "downgrade", "decrypt" or "intercept" the secure protocols we use every day like HTTPS. Facts won't budge, the technology we are using does what it says on the tin.
The Internet can't route around you being thrown off a tall building by men with guns, but the IETF has for some years considered it to be extremely important to design the network protocols to prevent these shenanigans. BCP # 188 "Pervasive Monitoring is An Attack"
Yes China will kill your network connections. And that is proof that Internet cannot route around censorship. Any time Internet routes around censorship China finds a new way to censor it.
Normal people don’t care about “downgrade” or “decrypt” or “intercept” they care about availability.
Browsers and TLS infrastructure have been solving that for a while now, via certificate transparency. Browsers can now reject any certificate that isn't publicly logged. So, yes, they could MITM, and burn an entire CA doing it.
Russia's ROSKOMNadzor has been trying to get users to install its own Root CAs in recent years. About 10 years ago everyone in the west removed CNNIC (Chinese counterpart) roots after they were caught MITM-ing.
> Things China can't do: Magically "downgrade", "decrypt" or "intercept" the secure protocols we use every day like HTTPS
I mean... They could, though, no? If they control the gateways they could drop any traffic that isn't encrypted with some root cert that allows them to decrypt in transit packets.
Is China that successful at it lately? I see a lot of posters and info from China getting around the great firewall, and my understanding was that they don't really care if 1% of users do that so long as it mostly holds and only the technical minded or really fixated will see it.
So there is a route around censorship, but maybe the public doesn't really care about it.
There is also the difficult reality that the government doesn't need to block vpn entirely, but just make it a credible risk of being detected. If you have to worry about the state police barging into your home, you are likely to decide it isn't worth the risk and self-regulate.
I'm not sure whether it's 1% or 0.1% or only Xi Jinpin can access YouTube. China can adjust the surveillance level dynamically. It's a matter of cost and effect.
That's the way it was explained to me. Letting the fringe do what they're going to do anyway while inoculating the majority to outside influence is the goal and the difficulty setting is dynamic.
There will always be >0 people who find a way around censorship, that's about it. Really takes away from "censorship is bad" when they say that censorship is impossible, cause those contradict.
I’m pretty sure with Iran, and I assume other authoritarian nations, the state controls what traffic can and cannot leave their borders. When they go dark, they just effectively cut off access to the outside world entirely. Sure they may have their own state run servers that provide some services, but then they can inspect and manage all traffic being routed inside the country. Don’t have to try and find the VPN if there’s just no traffic.
I suppose Utah could impose some sort of strategy here, but would be so burdensome and anti-American I’m not sure they could pull it off. Instead of a blacklist of sites dictated by the site provider, you go the other way where all Utah ISPs maintain a whitelist of IPs permitted to Utah citizens. Any traffic attempting to reach a non-white listed IP, would be rejected.
The layer 2 and 3 of ISO/OSI stack does indeed "route around censorship". But the Internet as we know it is all Layer 7, and it's as centralized as it gets.
That's why regulators often aim straight at Layer 7 entities - companies providing consumer services over the web. Because no matter how unblockable the route between you and some server is, it doesn't mean anything when the server itself is refusing to talk to you.
What about p2p and less scrupulous actors like TPB? I guess in China the former is probably more effective but this sort of thing is immediately what I thought of when I read OP
It's true unless we let freedom of speech and the press be interpreted narrowly, as the right to flap our jaws and to press paper against ink. That is up to us collectively.
> Over the last two years, Iran officials warned that wider use of the satellite internet service could make communication controls within the country "ineffective", adding the regime has failed to produce an adequate policy response.
> “I sometimes joke that we might as well turn the Ministry of Communications and the Supreme Council of Cyberspace into amusement parks, because they will no longer serve any purpose,” Hakami said.
It's certainly less true than it was. It depends on how Matt Prince feels on any particular day.
To a large degree, most of the internet today is ultimately controlled by a few people. If what you have to say pisses off these people, and someone is determined to keep you off the internet, you have a problem. Kiwi Farms is a well known example, and continues to suffer under regular DDOS attacks. Regardless of how you feel about KF, it's undeniable that a) this nonsense has streissanded the site enormously and b) it's speech you don't like that needs protection.
Also there was the whole covid "misinformation" garbage fire... I certainly do not want my government or some megacorp to decide what can and can't say or read.
And going beyond the internet, I just want to remind you Americans, that your 1st amendment is almost unique (to my knowledge). Enjoy and protect your offensive, hateful, blasphemous, extremist, and deeply unpopular speech.
If you want to ban ISP's in your state, or build a state firewall, or arrest your citizens, you are welcome to do so - but what happens on servers outside your state that your state is choosing to connect to is clearly none of your business.
Seems like we need a fundamental challenge to the concept that you have any jurisdiction whatsoever.
Being able to tie an IP to a rough physical location was, in retrospect, a huge Internet design mistake. IPs should be like random UUIDs. They should have been designed to get assigned randomly when you obtain one, rotated / thrown away periodically, with no hierarchical numeric relationship with the ISP that is assigning them.
Fascism is on the march. Dirty pictures aren't the real reason governments want this level of control over the internet. You can be sure that we'll see worse. Glad we won this battle.
Oh I see, "An individual is considered to be accessing the website from this state if the individual is actually located in the state regardless of whether the individual is using..." as mentioned in the injunction https://www.courthousenews.com/wp-content/uploads/2026/09/ay... So yeah the law would basically require everywhere to perform age verification.
I'm not in California and DraftKings blocks me connecting with a VPN, so they just don't seem to be distinguishing whether a VPN user is in California (which is the impossible part of this law).
What stops me from using DraftKings.com from a VPN? I'm at the page right now, but I don't have an account. Will they verify that my IP and home address match or something?
I've found that some sites (even like restaurants, for example) have no problem setting up an order when I connect via my VPN (from Linux) - my default browsing setup. But when I go to pay, their payment processor refuses to work properly / fails, so I can't actually transact any $$. Others work just fine WITH VPN on. Sadly, the former is increasing and the latter decreasing, to the point it's getting harder and harder.
Heck, Lowes and BestBuy are pretty unusable in general via VPN already.. (or maybe due to ublock, or privacy badger or eff, etc.. :-)
They have an extensive blacklist of VPNs, and on top of that will require you to verify location on a phone if you don't have an obvious residential IP. Or maybe they just always do that? Of course if you have a sketchy proxy and a phone where you can spoof location and you can ensure they don't flag it as something "unverified" like GrapheneOS, you can get around it, and you'd be in a small minority.
Unfortunately know this because a gambler friend showed me.
Not sure what the impossibility is. VPN's have a set of exit relays. If traffic is coming from one of those exit relays, it's coming from a VPN, so adult websites can be required to block traffic from those exit relays. What am I missing?
The law is only meant to apply to citizens of Utah though. Blocking all exit relays would mean that absolutely anyone accessing that website would not be able to do so from a VPN which burdens people outside of Utah too.
You need to understand that my branch considers Catholicism to be a pagan shame and the Mormons an actual sex cult. We just don't talk about our differences anymore because it always ended in death.
The law likely violates the U.S. Constitution’s prohibition on passing laws that significantly burden businesses and people outside Utah’s borders.
SB 73 burdens the rights of all internet users outside of Utah because it requires adult websites to either know every visiting user’s physical location, and then block those in Utah, or to verify every visitor’s age just in case they might be in Utah.
It's technically impossible to both implement Utah's law and respect the constitution. To make it technically feasible you'd need to either change the constitution or federalize the law.
I would think that requiring adult websites to essentially block all VPN traffic to be pretty heavy handed and hardly a solution. Especially considering there are many reasons to use a VPN.
It's impossible to have a full and complete list of VPN exit nodes, for the simple reason that no company publishes the full list, and also technically if you set up an OpenVPN server on digital ocean and connect to that you're also using a VPN but no one would know your address is hosting a VPN server.
You'd have to ask every non-residential host online to do the same. As above, you can get a DigitalOcean droplet and ssh -D to it, now you have a SOCKS proxy that for state's concern is doing the same as a VPN.
Utah could demand the moon, it doesn't mean that the federal government would agree they have a right to that demand.
Utah can't tell businesses that service the country (or the world) how to do anything in this regard. You can't demand a list of the VPN exit nodes, because no VPN would ever give you that, and if they're outside of your jurisdiction, how could you possibly enforce it (assuming you got the Feds to agree with your law regulating interstate/international commerce now). You can't tell websites to only accept residential traffic, for the same reasons.
The internet sorta fucks states rights (in a good way).
Why would a VPN company care about what Utah requires if they have no legal presence there(or in the US for that matter)?
Besides, there's no such thing as "residential" IPs. If I set a VPN gate at my mum's house, how would the porn company know?
The "impossibility" is in them saying "we cannot guarantee with 100% certainty that the user isn't using a VPN" and that's correct, they can't - but the law has no provision for that, they are risking fines over something they cannot control.
I think "The Church" (The Church of Jesus Christ of Latter-Day Saints) is trying to keep Pornhub from publishing stats of how many ~people~ ~righteous Church members~ Melchizedek Priesthood holders are whacking to "cosplay porn" and "lesbian porn".
Is it even possible to reliably know that a connection is from a VPN? Anyone can proxy through a random hosting provider.
Folks would just host their own vpns various places and this would be pointless ….
Now of course, if your VPN is a home-lab style VPN where you are connecting to a little wireguard box sitting in your own home, that is a totally different story.
I use VPN most of the time. My work requires it, and I like Mozilla VPN for personal privacy. (Note: it has ad blocking DNS built in which is nice!)
I occasionally get blocked by websites or services, especially streaming apps, if I'm on VPN. I suspect they're just looking out for Amazon/Microsoft/etc IP address blocks. It's very annoying
There are also third party providers of IP annotations to classify known VPN address ranges that content providers typically subscribe to blanket block providers.
The reason for this aggressive approach is streaming apps all need your IP as core signal for tagging your region and all content licensing is region locked (even on YT).
Netflix are/were the most relaxed about it , and for long time would only buy content if they got global distribution rights, but not anymore. Many VPN ads specifically used to market that you can watch Netflix geolocked content.
[1] IME they block DC IPs too although not needed for blocking professional VPN, even self hosted OpenVPN on cloud box usually gets flagged.
The simplest methods block known datacenter IP ranges like you thought. More will score it based on several heuristics and a reputation over time. If you get 100 different users connecting from a single IP, it's probably not someone's home internet connection.
Or, their so-called "smart" TV is acting as a proxy without their informed consent.
To handle the matter technically Utah would need a "great firewall of Utah" and a legislative mandate that all ISPs route thru it. Somehow they'd have to factor-in signals from cellular sites neighboring states and satellites.
The inability to immediately and perfectly eliminate a behavior is not a good enough reason to be against any attempt to eliminate that behavior.
So if you are legally required to block all VPN users and then fail to actually block all VPN users what is stopping you from being punished for not complying with the law?
Since when do you have to pull permits to put a server on the web?
Under Utah's law as written, a private business has to assume any single IP address could be operating a VPN/proxy.
Let’s block traffic on the internet blindly just in case someone is looking at an adult website.
Doesn't help your arm, but when they're asking for things in that second category, it doesn't help them either.
Is this still true, or has it become a truism? It seems nations like Iran and China (and events like Kashmir come to mind) have progressed the state-of-the-art and playbook to where we can't actually say it definitively will route around it.
Now seeing that the US and EU are flirting with these similar restrictions it's making me wonder how we'll be able to keep hold of these principles.
Maybe my concern with that adage is ultimately its passive voice, since it takes 'active' action by people to give us those options, and will probably take more actions by more people to keep it alive now.
Things China can't do: Magically "downgrade", "decrypt" or "intercept" the secure protocols we use every day like HTTPS. Facts won't budge, the technology we are using does what it says on the tin.
The Internet can't route around you being thrown off a tall building by men with guns, but the IETF has for some years considered it to be extremely important to design the network protocols to prevent these shenanigans. BCP # 188 "Pervasive Monitoring is An Attack"
Normal people don’t care about “downgrade” or “decrypt” or “intercept” they care about availability.
I mean... They could, though, no? If they control the gateways they could drop any traffic that isn't encrypted with some root cert that allows them to decrypt in transit packets.
So there is a route around censorship, but maybe the public doesn't really care about it.
I suppose Utah could impose some sort of strategy here, but would be so burdensome and anti-American I’m not sure they could pull it off. Instead of a blacklist of sites dictated by the site provider, you go the other way where all Utah ISPs maintain a whitelist of IPs permitted to Utah citizens. Any traffic attempting to reach a non-white listed IP, would be rejected.
The layer 2 and 3 of ISO/OSI stack does indeed "route around censorship". But the Internet as we know it is all Layer 7, and it's as centralized as it gets.
That's why regulators often aim straight at Layer 7 entities - companies providing consumer services over the web. Because no matter how unblockable the route between you and some server is, it doesn't mean anything when the server itself is refusing to talk to you.
A VPN/proxy could exist at almost any single address at any given time.
> “I sometimes joke that we might as well turn the Ministry of Communications and the Supreme Council of Cyberspace into amusement parks, because they will no longer serve any purpose,” Hakami said.
https://gulfnews.com/world/mena/iran-official-says-starlink-...
To a large degree, most of the internet today is ultimately controlled by a few people. If what you have to say pisses off these people, and someone is determined to keep you off the internet, you have a problem. Kiwi Farms is a well known example, and continues to suffer under regular DDOS attacks. Regardless of how you feel about KF, it's undeniable that a) this nonsense has streissanded the site enormously and b) it's speech you don't like that needs protection.
Also there was the whole covid "misinformation" garbage fire... I certainly do not want my government or some megacorp to decide what can and can't say or read.
And going beyond the internet, I just want to remind you Americans, that your 1st amendment is almost unique (to my knowledge). Enjoy and protect your offensive, hateful, blasphemous, extremist, and deeply unpopular speech.
Seems like we need a fundamental challenge to the concept that you have any jurisdiction whatsoever.
How is that not a blatant first amendment violation?
This Utah law requires perfection.
A VPN/proxy could exist on any given IP address at any time, which the California law recognizes but the Utah law does not.
Heck, Lowes and BestBuy are pretty unusable in general via VPN already.. (or maybe due to ublock, or privacy badger or eff, etc.. :-)
Unfortunately know this because a gambler friend showed me.
It's impossible to have perfect knowledge of the entire set of VPN exit node addresses.
You need to understand that my branch considers Catholicism to be a pagan shame and the Mormons an actual sex cult. We just don't talk about our differences anymore because it always ended in death.
It's like I thought the Gospel Church in Northern Ireland would have better music. Turns out not.
It also seems to me like Utah could just demand that adult sites only accept traffic from residential ips.
Utah can't tell businesses that service the country (or the world) how to do anything in this regard. You can't demand a list of the VPN exit nodes, because no VPN would ever give you that, and if they're outside of your jurisdiction, how could you possibly enforce it (assuming you got the Feds to agree with your law regulating interstate/international commerce now). You can't tell websites to only accept residential traffic, for the same reasons.
The internet sorta fucks states rights (in a good way).
Besides, there's no such thing as "residential" IPs. If I set a VPN gate at my mum's house, how would the porn company know?
The "impossibility" is in them saying "we cannot guarantee with 100% certainty that the user isn't using a VPN" and that's correct, they can't - but the law has no provision for that, they are risking fines over something they cannot control.