In the context of the internet, domains can be categorized into several types based on their purpose, structure, and the domain name system (DNS). Here are the most common types of domains:
1. Top-Level Domains (TLDs)
These are the highest level in the domain name system hierarchy. TLDs are the part of the domain name that comes after the last dot, like .com
, .org
, or .edu
.
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Generic Top-Level Domains (gTLDs): These are general-purpose domains that are widely recognized and used for a variety of websites.
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Examples:
.com
,.org
,.net
,.info
,.biz
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Country Code Top-Level Domains (ccTLDs): These are two-letter domains that represent a specific country or territory.
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Examples:
.uk
(United Kingdom),.ca
(Canada),.de
(Germany),.in
(India)
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Sponsored Top-Level Domains (sTLDs): These are specialized TLDs that are sponsored by specific organizations and are used for specific purposes or industries.
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Examples:
.edu
(education institutions),.gov
(government),.mil
(military)
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2. Second-Level Domains (SLDs)
The second-level domain is the part of the domain name that is located to the left of the TLD. In example.com
, "example" is the second-level domain. These are typically chosen by individuals or organizations and are a significant part of the branding for a website.
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Examples:
google.com
,wikipedia.org
,amazon.com
3. Third-Level Domains
These are subdomains of the second-level domain. For example, in blog.example.com
, "blog" is the third-level domain. Third-level domains are used to organize different sections or services within a website.
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Examples:
blog.example.com
,mail.example.com
,shop.example.com
4. Internationalized Domain Names (IDNs)
These are domain names that include characters from non-Latin scripts, such as Arabic, Chinese, or Cyrillic. IDNs allow non-English-speaking countries to use their native scripts in domain names.
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Example:
网站.中国
(Chinese website)
5. New gTLDs (Generic Top-Level Domains)
These are new domain extensions that have been introduced in recent years to expand the available choices for website names.
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Examples:
.app
,.tech
,.blog
,.shop
6. Non-profit Domains
These are domains used by non-profit organizations. The most common is the .org
TLD, which is generally used by charities, open-source projects, and educational institutions.
7. Premium Domains
These are high-value, short, and memorable domain names that are considered to be of greater market value due to their branding potential.
8. Wildcard Domains
Wildcard domains are used to direct traffic from any subdomain to a single location on a website. For instance, *.example.com
can redirect all subdomains to a particular destination.
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