GET request from esp8266 onet.co.uk returns error 400 Bad Request

Does anyone know what the query should look like?
I send the query from the esp8266 module.

When sending the query to nbp.pl using GET http://nbp.pl HTTP/1.0 everything works the page returns the html code. When I want to use the same query (GET http://onet.pl HTTP/1.0) to get the html code of onet.co.uk it returns me this:
.

Perhaps blandly. Perhaps it's the server that can't identify who is asking (desktop or mobile device) and doesn't know what version to send. Maybe try querying the site: https://m.onet.pl/ - mobile version

excray wrote:

Maybe bland. Perhaps it's the server not being able to identify who is asking (desktop or mobile device) and doesn't know what version to send. Maybe try querying the site: https://m.onet.pl/ - mobile version

.

Something from this climate. Or a large site running on a load balancer, address group etc etc etc....
If I were to analyse a similar topic, I would check the options from my PC with the http command line client, wget or whatever.

The colleague loses the biggest flavour, the description added to the HTTP code, and you don't see him intercepting that code in the call, sometimes helpful. The 400 code posted in HTML, however, is no longer that.

Most likely something is missing in the header. Perhaps it doesn't match 1.0 and expects 1.1?
Here is an example from old IE:
.

However, even if you do get it:

.

Simply put, onet works over https (https://www.onet.pl).

The domain onet.pl is not accessible over HTTP, only over HTTPS - the error code returned is HTTP/1.1 301 Moved Permanently:

.

The above occurs for both HTTP 1.0 and 1.1.
However, the attempted request to nbp.pl looks like this:

.

At first glance the error seems obscure, but note where the server wants to redirect - just add "www" to the host in the request to get a normal response:

.

PS. It's a good idea to add "Connection: close" to the request at the end, then the server won't try to keep-alive in the case of HTTP 1.1