![]() ![]() If your query still can't be answered, then the DNS query process will use recursion. This means that the information you're being supplied with isn't directly from your ISP's directory, but from a third party. If it can answer a user using information from the cache, then it will still answer but with a 'non-authoritative' answer. A server's cache holds a record of all other previous queries. If the ISP directory is unable to answer the initial DNS query authoritatively, then its next step would be to check its cache. ![]() If a user's initial query can be answered using this directory, an 'authoritative' answer is sent to the user's computer so they can connect with the website. ![]() Every ISP has a database of DNS names and their corresponding IP addresses. This information is then sent in the form of a 'DNS query' to their Internet Service Provider's (ISP) DNS servers. When a user wants to access a webpage, they enter the address (or DNS name) into their browser's address bar. ![]()
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