Server provider has conformed that site should be available globally. I would think if there is any blocking it's far more likely to be happening at the Russian end. I would guess that kind of regime would routinely block new sites until they can check them to be non-subversive.
I can't imagine we'd say anything here that would be non-subversive, Bob.
Subversion is all we live for!! 😷
But seriously, by all appearances "the regime" is trying to manage a domestic narrative in a way that allows them to sustain multi-layered and broad-ranging fictions about what's occurring in the world and why. Allowing its citizens easy access even to comparatively innocuous sites like this would probably be seen as posing risks they're not prepared to take.
IOW I doubt there is a clearance process for 'safe' sites. They likely regard anything "western" as inherently unsafe and therefore off limits.
And now that I've said that here, I suppose we wouldn't get a clearance anyway, even if they were industriously vetting sites.
Uh... Um... Oops! What was that about being non-subversive again?
no different from what is happening "here" ... your post ("They likely regard anything "western" as inherently unsafe and therefore off limits.") is a prime example of total cluelessness about how things are over there...
eais.rkn.gov.ru/en/ - this is what is actually formally blocked if you are using just regular browsers
There are basically two ways I can see this happen:
The IP or IP range of this website is shared with another site that is blocked for one reason or another in Russia. Blocking is opt-in, not opt-out.
The IP or IP range of the Russian users in question overlap with IPs known to be part of hacking activities.
Either way it's not trivial to work around, but as a guard against both malicious traffic and against overly broad blocking of such, I would strongly recommend checking out Cloudflare as Web Application Firewall - the $20/month Pro subscription is well worth it, IMHO.