Valid domain names: Difference between revisions


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Domain names are required to meet certain strict naming requirements.  Although there are efforts underway to allow domain names with non-latin alphabets (for example, Greek, Chinese, or Hebrew) currently most systems do not allow such names.
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[[Domain names]] are required to meet certain strict naming requirements.  Although there are efforts underway to allow domain names with non-latin alphabets (for example, Greek, Chinese, Hebrew, etc) currently most systems do not allow such names.


==Domain Name Limitations==
==Domain Name Limitations==
Domain names must only use the letters <tt>a</tt> to <tt>z</tt>, the numbers <tt>0</tt> to <tt>9</tt>, and the hyphen (<tt>-</tt>) character.  If the hyphen character is used in a domain name, it cannot be the first character in the name.  For example, <tt>-example.com</tt> would not be allowed, but <tt>ex-ample.com</tt> would be.
Domain names must only use the letters <tt>a</tt> to <tt>z</tt>, the numbers <tt>0</tt> to <tt>9</tt>, and the hyphen (<tt>-</tt>) character.  If the hyphen character is used in a domain name, it cannot be the first character in the name.  For example, <tt>-example.com</tt> would not be allowed, but <tt>ex-ample.com</tt> would be.


Each part of a domain name must follow these restrictions - a domain name <tt>x.y.z.co.uk</tt> would have to ensure that the x, y, z, co, and uk portions of the domain name all follow these rules.  In addition, the entire domain name, including the [[What is a top level domain? | TLD]], can only be a maximum of 67 characters.  This includes the periods between each label - <tt>www.example.com</tt> is 15 characters long.
Each part of a domain name must follow these restrictions - a domain name <tt>x.y.z.co.uk</tt> would have to ensure that the x, y, z, co, and uk portions of the domain name all follow these rules.  This means that subdomain names need to follow the same rules as domains. In addition, the entire domain name, including the [[TLD]], can only be a maximum of 67 characters.  This includes the periods between each label - <tt>www.example.com</tt> is 15 characters long.
 
===Additional Limitations===
Domain names are subject to restrictions due to trademark and copyright laws.  Most of the time, the owner of a registered trademark is able to contest the ownership of a domain name that mimics the registered trademark.  This can be a very murky area, but in general it is highly recommended that you not register domains that infringe on registered trademarks unless you are the holder of that trademark.
 
Some top level domains, especially those managed by individual countries, may have additional restrictions.  For example, <tt>.biz</tt> domains specify that they should be used for business or commercial use only, and <tt>.name</tt> domains should represent your name, or a name that you are referenced by.


==Naming Guidelines==
==Naming Guidelines==
In general, each part of a domain should be as self-explanatory as possible.  A short, informative, easy-to-remember domain name will go far in ensuring that your website is memorable.  In addition, it is often a good idea to break up logical portions of your website onto subdomains of a main domain.  A great example of this is Google - they have their mail service on <tt>mail.google.com</tt>, their mapping service on <tt>maps.google.com</tt>, and so on.
In general, each part of a domain should be as self-explanatory as possible.  A short, informative, easy-to-remember domain name will go far in ensuring that your website is memorable.  In addition, it is often a good idea to break up logical portions of your website onto subdomains of a main domain.  A great example of this is Google - they have their mail service on <tt>mail.google.com</tt>, their mapping service on <tt>maps.google.com</tt>, and so on.


==Top Level Domains==
Also, choosing an appropriate [[What is a top level domain? | top level domain (TLD)]] can make your domain name much more memorable.  Although many people want to get a .com domain name, a well-thought out .org or .net name can be more memorable, and easier to obtain, than a .com name.  For example, which is easier to remember - <tt>ex4mple-4432.com</tt> or <tt>example.biz</tt>?  There is so much competition for .com names that most of the "good" names are already taken.
<small>More information about top level domains can be found [[What is a top level domain? | here]].</small>
 
{|
! colspan="3" | Common Unrestricted TLDs
|-
! TLD !! Original use !! Comments on current use
|-
| .com || Commercial organizations || The most sought-after TLD.  Very hard to find useful, short unregistered domain names under .com
|-
| .net || Network infrastructure || Used by some ISPs
|-
| .org || Other organizations || Commonly associated with non-profit or non-commercial organizations, such as residential committees, volunteer groups, etc.
|-
| .biz || Businesses || A new TLD, created in 2001. Although targeted at business, most businesses prefer .com addresses, but .biz is gaining popularity
|-
| .name || Individuals, families || A new TLD, created in 2001.  Still pretty uncommon, but chances are good that your name is available for registration
|-
| .info || Information sites || A new TLD, created in 2001.  The most popular of the new set of TLDs, and often used for its intended purpose.
|-
! colspan="3" | Restricted TLDs (not a complete list)
|-
| .edu || Educational institutions || Still restricted to schools, primarily post-secondary accredited US institutions.
|-
| .gov || Federal Government entities || Restricted to US Government.  Now includes state and local government entities.
|}
 
Choosing an appropriate top level domain (TLD) can make your domain name much more memorable.  Although many people want to get a .com domain name, a well-thought out .org or .net name can be more memorable, and easier to secure, than a .com name.  For example, which is easier to remember - <tt>ex4mple-4432.com</tt> or <tt>example.biz</tt>?  There is so much competition for .com names that most of the "good" names are already taken.


Through Bravenet you can register for any of the unrestricted TLDs listed above; in addition, you can use domain names [[Using a 3rd party registrar | registered elsewhere]] for your Bravenet websites, or [[Transfering a domain | transfer your domain]] to our [[What is a registrar? | registrar]].
[[Category:Domains]]
[[Category:Getting Started]]
Through Bravenet you can register for most of the unrestricted TLDs (see the article on [[What is a top level domain? | TLDs]] or [[registering a domain]] for specifics); in addition, you can use domain names [[Adding an external domain | registered elsewhere]] for your Bravenet websites, or [[Transfering a domain | transfer your domain]] to Bravenet.

Latest revision as of 13:39, 27 May 2008

Domain names are required to meet certain strict naming requirements. Although there are efforts underway to allow domain names with non-latin alphabets (for example, Greek, Chinese, Hebrew, etc) currently most systems do not allow such names.

Domain Name Limitations

Domain names must only use the letters a to z, the numbers 0 to 9, and the hyphen (-) character. If the hyphen character is used in a domain name, it cannot be the first character in the name. For example, -example.com would not be allowed, but ex-ample.com would be.

Each part of a domain name must follow these restrictions - a domain name x.y.z.co.uk would have to ensure that the x, y, z, co, and uk portions of the domain name all follow these rules. This means that subdomain names need to follow the same rules as domains. In addition, the entire domain name, including the TLD, can only be a maximum of 67 characters. This includes the periods between each label - www.example.com is 15 characters long.

Additional Limitations

Domain names are subject to restrictions due to trademark and copyright laws. Most of the time, the owner of a registered trademark is able to contest the ownership of a domain name that mimics the registered trademark. This can be a very murky area, but in general it is highly recommended that you not register domains that infringe on registered trademarks unless you are the holder of that trademark.

Some top level domains, especially those managed by individual countries, may have additional restrictions. For example, .biz domains specify that they should be used for business or commercial use only, and .name domains should represent your name, or a name that you are referenced by.

Naming Guidelines

In general, each part of a domain should be as self-explanatory as possible. A short, informative, easy-to-remember domain name will go far in ensuring that your website is memorable. In addition, it is often a good idea to break up logical portions of your website onto subdomains of a main domain. A great example of this is Google - they have their mail service on mail.google.com, their mapping service on maps.google.com, and so on.

Also, choosing an appropriate top level domain (TLD) can make your domain name much more memorable. Although many people want to get a .com domain name, a well-thought out .org or .net name can be more memorable, and easier to obtain, than a .com name. For example, which is easier to remember - ex4mple-4432.com or example.biz? There is so much competition for .com names that most of the "good" names are already taken. Through Bravenet you can register for most of the unrestricted TLDs (see the article on TLDs or registering a domain for specifics); in addition, you can use domain names registered elsewhere for your Bravenet websites, or transfer your domain to Bravenet.