After examining the website's loading speed, it became apparent that a significant portion of the time is consumed by the dns query response.

During the domain registration process, hosting providers typically allocate dns records. However, it seems plausible that these records can be substituted with alternative ones.

Essentially, the question boils down to whether there exist dns servers that can enhance response time, or if there is something I have failed to comprehend

If the domain name registrar is an authentic ICANN-accredited entity rather than a reseller, NS-related issues typically do not arise. It is worth highlighting the significance of your test. In the past, SEOs targeted me due to an extended DNS query.

However, when I inquired about their views on the website's target audience and the country for which they conducted DNS tests, they went silent. Your question is valid, but consider this: altering NS settings may resolve the issue on your test computer, but it can potentially lead to the loss of customers.

Certainly, there exist numerous DNS hosting services available, both paid and free, that have servers strategically positioned in proximity to users.

In scenarios where users are spread across different regions, employing a service equipped with IP anycast, such as dnsmadeeasy, would be advantageous.

If, however, you utilize the NS (name server) of your host, which is physically distant from the site's CA (content delivery network), it is indeed possible for requests to slightly impede the loading time of the website.

In the context of DNS servers, it's important to consider the geographical distribution and network infrastructure of the servers. Utilizing DNS servers with strategically located points of presence can enhance response time by reducing the network distance between the user and the DNS server. Large DNS providers often have a global network of servers, enabling them to deliver faster response times for DNS queries across different regions.
The selection of DNS server software and configurations can affect response time. For example, some DNS server software may be optimized for performance and responsiveness, and specific configurations related to caching and query handling can contribute to faster response times.

Furthermore, leveraging DNS caching can play a significant role in improving response time. Caching resolved DNS queries at the server level can help reduce the time needed for subsequent lookups, as the resolved information can be readily available for future requests. Implementing DNS caching effectively reduces the overall query load on the DNS infrastructure and can enhance response times for frequently accessed domains.

From a broader perspective, incorporating a content delivery network (CDN) into the website's infrastructure can also impact DNS response time. CDNs help distribute content across a network of servers located in various geographic regions, reducing the distance and time required to retrieve and deliver website assets. By offloading DNS resolution and delivering content from servers closer to the user's location, CDNs can significantly improve overall website performance, including DNS response times.

Optimizing DNS resource records, such as reducing the number of necessary DNS lookups and configuring efficient Time to Live (TTL) settings, also contributes to improved DNS response times. By minimizing the number of DNS queries required for domain resolution and ensuring that cached DNS records have appropriate TTL values, the overall DNS performance can be enhanced.