From domain name to IP address
The lookup resolves the A and AAAA records of the hostname you enter and lists every address returned. A domain can have several addresses for load balancing or redundancy, and may return different ones on the next query. The www hostname and the bare domain are separate names and can point to different places, so check the one you actually care about.
Who operates the network
Every public IP address is announced to the internet by an autonomous system, identified by an AS number. The tool maps each address to the announcing ASN, the name of the network, the routed prefix and the country in which the address block was allocated by its regional registry.
For a site on a typical hosting or cloud provider, the network name answers the question of who hosts it. It identifies the infrastructure operator. It does not identify a reseller that rents servers from that operator, and it says nothing about who runs the website itself.
Reverse DNS
Reverse DNS is a PTR record that maps an address back to a name. It is controlled by whoever holds the IP block, not by the domain owner, so it often shows a provider's generic hostname. Those names can be informative: they frequently include the provider's domain, a region code or a server label. A missing PTR record is common and not an error for web servers, although mail servers are expected to have one that matches.
When the IP belongs to a CDN or proxy
If a site uses Cloudflare, Fastly, Akamai, CloudFront or a similar service, its DNS points at the edge network of that service. The address you see belongs to the CDN, is often shared by a very large number of unrelated sites and is frequently anycast, meaning the same address is served from many locations at once. The origin server, where the site really runs, sits behind it and is intentionally not visible.
The tool labels addresses in known CDN and proxy ranges as edge addresses. In that case the accurate answer to where the site is hosted is: behind that CDN, origin not publicly observable. No lookup tool can reliably go further, and attempts to unmask an origin are out of scope here.
Allocation country is not server location
The country shown is the one recorded for the address block at the regional internet registry. It reflects where the holding organisation registered the block. Large networks use blocks far from where they were registered, and anycast addresses exist in many countries simultaneously. Treat the country as a property of the paperwork, not as the physical position of a server.