Connecting to xxx.xxx.xx.xxx:443 ... failed: Unknown error or warned - so armed

In this screenshot, at first glance, there is nothing unusual - just dropped the site. But it is not so ...

The screenshot was taken yesterday in an office far from Moscow, which is connected to the Internet through one federal provider. Please note that there is access on port 80, the problem begins only after redirection to HTTPS.

At that moment I had a virtual server console from a Moscow hosting provider open: the site was unavailable with another error:

Connecting to www.nic.ru (www.nic.ru)|31.177.76.4|:443... failed: Unknown error. 

Nevertheless, the site was available when using VPN in Opera browser, as well as when connecting through other providers.

Apparently, you can say that I was lucky to immediately find two providers who had a common problem. But, guarantees that they are completely independent of each other - no.

At least we can say that this is not a local problem of the provider, whose services I use both at home and at work. It can manifest itself in any settlement and, possibly, with any provider. And site owners can find out about this only by chance.

And it started not yesterday

Since I have long been somehow related to web development for a long time, I’m not worried about fallen sites. There are many reasons why the site may not respond.

But last month, when looking for a solution to a problem, there were so few useful links that I really wanted to get into an article in some English-language blog. It did not take long to understand - it was enough to enable VPN in the Opera browser.

Please note that there was no information that the resource was not blocked.

As a result, over the past month I had to use VPN several more times. These were mostly little-known (for me) English-speaking IT resources. But also among them were:

• bitbucket.com is not the site itself, only the CDN from which a couple of files were downloaded. The problem lasted about two hours.
• deb.nodesource.com - the problem was on a public holiday in early May, the duration is unknown.

Total:

Information was communicated to interested parties, one of the responses included the following phrase:

Currently, due to the incorrect operation of the system of blocking Roskomnadzor sites, the site https://nic.ru may be unavailable ...

Unfortunately, I doubt that this can be considered an official response, since no press releases on this issue have been found.