Why is the site.ru/?sometext page not available?

Question

Network administration

Today I noticed a strange jamb on my site.
Links to the main page with GET parameters in the url do not open.
I will not give here the address of my site, but I will give the IP of the server. So that you can look at sites from it and check if pages like this open: site.ru/?text
IP: 195.208.1.167
Exactly the root. Pages like site.ru/*/?text open without problems on all sites.
When checking through your gadgets on different 50/50 networks, the problem is present. It is clearly seen that there is a problem when you check availability with host-tracker or ping-admin (95% of accessibility tests failed).
I send reports to the hoster, I show them on other sites. The hoster says: "I don't see a problem, so it doesn't exist!"
And everything is here!
Am I wrong or host-tracker is wrong, I don't...

Answer 1

specify a couple of addresses, in the site point com format so that they don’t say that it’s an advertisement, asking how to get them ...