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Indeed, Proton absolutely must provide a concrete solution to this type of surveillance, especially when the competition is innovating...

proton is getting old by the second by missing these features.

Agree. Stealth helps, but it doesn’t really defeat traffic analysis. On many restrictive networks it still gets fingerprinted or blocked.

One practical improvement would be adding support for AmneziaWG as an additional stealth-class protocol. It’s open source, WireGuard-based, and specifically designed to reduce protocol fingerprinting by altering handshake and packet characteristics. Other VPNs already use it where TLS-style obfuscation isn’t enough.

This wouldn’t replace Stealth, just complement it. Protocol diversity is one of the few defenses that actually works against active traffic analysis.

I agree

This is a must have and is mandatory for privacy if proton wants to stay up to date with security concerns.

Proton's VPN is a significant part of my paid plan's value proposition.

As other services adapted to higher traffic analysis capabilities of adversaries and have heavily invested in research, even Proton's more secure 'Secure Core' technology feels very 'legacy' compared to the more advanced solutions that others have already mentioned here.

Here's a comment you can post on the Proton VPN DAITA page about your UK IP connection issue:

I'm experiencing an interesting issue with UK IP connections that I'm hoping someone can help explain. When I connect to a UK server and try to access my WordPress website (https://thorpeparktickets.co.uk/), the site initially appears blocked or doesn't load properly. However, when I access other UK websites, they work perfectly fine. Strangely, if I refresh the page, my website then loads correctly.
This seems to happen consistently only with my WordPress site when using UK IPs from ProtonVPN. Other country IPs work fine for my site, and other UK sites work fine with UK IPs - it's just this specific combination that causes the initial loading issue.
Has anyone experienced similar behavior? Could this be related to:

WordPress security plugins detecting VPN traffic patterns?
CDN/caching issues with UK-based servers?
Some kind of geo-blocking mechanism that's confused by the VPN connection?

The fact that a simple refresh fixes it makes me think it might be a caching or initial handshake issue rather than a true block. Would love to hear if others have encountered this with WordPress sites and UK servers, and if DAITA might help with this kind of traffic analysis issue.
Any insights would be appreciated!

100 percent for this, yes it can reduce speed but if anyone doesn't like that trade off they don't have to use it. It should obviously be optional but it should definitely exist.

+1

Like NYM & Safing SPN

+1

Defense Against Traffic Analysis is mandatory for privacy and for peace of mind.

NICE

Doesnt stealth mode do that

I am also looking for this.

Obscura VPN, Tor, and Nym have also done research on this subject:
https://obscura.net/#obfuscation
https://www.privacyguides.org/en/advanced/tor-overview/#tor-usage-is-not-undetectable
https://nym.com/mixnet
I think Proton could take some inspiration from them!

Information link, Karlstad University, about DAITA:

https://www.kau.se/en/news/cybersecurity-researcher-have-developed-new-protection-against-ai-analysis

"Researcher Tobias Pulls from the Department of Computer Science at Karlstad University, together with the Gothenburg-based company Mullvad VPN, has developed a new protection named DAITA ("Defense against AI-guided Traffic Analysis").

The protection against the rapid AI development in traffic analysis is available in Mullvad's VPN app on various platforms throughout the year, which has over a million downloads worldwide."

I use DAITA too, I see no drastic drop in speed. It might depend of which server you are using to connect and of how many features you activate in the app or even which DNS is used.

Just sharing my experience. I have been testing DAITA Mullvad feature and on my country the drop speed was around 70%.
I am not against implementing it, but think it twice on how implement this feature as it doesn't seem easy and efficient