--- # Reserved subdomains
- a
- about
- abuse
- access
- account
- accounts
- ad
- adm
- admin
- administrator
- administrators
- ads
- adserver
- adv
- affiliate
- affiliates
- agenda
- alpha
- analytics
- api
- app
- apps
- archive
- asset
- assets
- atom
- auth
- auto
- autoconfig
- autodiscover
- b
- b2b
- backup
- backups
- bb
- bbs # means forum
- beta
- billing
- blog
- blogs
- board
- book
- bookmark
- bookmarks
- bot
- bots
- broadcast-ip
- bug
- bugs
- business
- c
- cache
- cal
- calendar
- careers
- cdn
- chat
- cisco
- citrix
- client
- clients
- cloud
- cms
- cn
- code
- comment
- comments
- communities
- community
- connect
- contact
- content
- contributors
- control
- coppa
- copyright
- corp
- cp
- cpanel
- create
- crm
- css
- cssproxy
- customize
- cvs
- d
- dashboard
- data
- db
- dbadmin
- dc
- de
- delete
- demo
- design
- destroy
- dev
- devel
- develop
- developer
- developers
- development
- direct
- directory
- diversity
- dmca
- dns
- doc
- docs
- domain
- domains
- download
- downloads
- drupal
- e
- e-mail
- edit
- edu
- email
- embed
- embedded
- en
- eng
- english
- es
- event
- events
- example
- exchange
- explore
- extranet
- f
- facebook
- faq
- faqs
- favorite
- favorites
- fax
- fb
- feed
- feedback
- feeds
- file
- files
- finance
- firewall
- forms
- forum
- forums
- foto
- fr
- free
- friend
- friends
- fs
- ftp
- fw
- g
- gallery
- game
- games
- gate
- gateway
- general
- get
- gift
- gis
- git
- gmail
- go
- gov
- groups
- guide
- guides
- help
- home
- host
- hosting
- hostmaster
- hr
- html
- i
- icon
- icons
- id
- idp
- im
- image
- images
- imap
- img
- in
- inbox
- index
- info
- intra
- intranet
- invite
- ip
- ipfixe
- iphone
- ipv4
- irc
- it
- jabber
- job
- jobs
- jp
- js
- kb
- knowledgebase
- lab
- labs
- ldap
- legacy
- legal
- lib
- library
- libs
- link
- links
- linux
- list
- lists
- live
- lms
- local
- localhost
- loghost
- login
- loopback
- m
- mail
- mailadmin
- mailer
- mailhost
- mailing
- mailman
- mailserver
- main
- manage
- map
- maps
- market
- marketing
- master
- media
- member
- members
- messages
- mirror
- mobile
- monitor
- monitoring
- moodle
- mrtg
- ms
- mssql
- mx
- my
- mysql
- nagios
- net
- network-ip
- new
- news
- newsletter
- nl
- noc
- ns
- ntp
- ntp1
- oa
- office
- official
- old
- oldmail
- online
- origin
- outlook
- owa # Outlook
- p
- pages
- paid
- panel
- partner
- partners
- pay
- payment
- payments
- pbx
- pda
- pgsql
- photo
- photos
- php
- phpmyadmin
- pics
- picture
- pictures
- pm
- policy
- pop
- pop3
- portal
- post
- postmaster
- pr
- press
- preview
- privacy
- private
- pro
- prod
- product
- production
- products
- profile
- project
- projects
- promo
- proxy
- pt
- public
- purge
- put
- qa
- redirect
- register
- relay
- remote
- report
- reports
- research
- reviews
- root
- router
- rss
- rt
- ru
- s
- sales
- sandbox
- search
- secure
- seo
- server
- service
- services
- setting
- settings
- sftp
- share
- sharepoint
- shop
- shopping
- show
- sip
- site
- sitebuilder
- sitemap
- sites
- sms
- smtp
- social
- software
- sp
- spam
- speedtest
- sport
- sports
- sql
- ssh
- ssl
- sso
- st
- staff
- stage
- staging
- start
- stat
- static
- statistics
- stats
- status
- storage
- store
- stream
- streaming
- student
- style
- styles
- support
- survey
- sv
- svn
- syn
- syndicated
- system
- t
- tag
- tags
- team
- teams
- tech
- temp
- termsofservice
- test
- testing
- thumbs
- ticket
- tickets
- time
- tmp
- tool
- tools
- tos
- trac
- track
- tracker
- tracking
- training
- travel
- ts
- tv
- tw
- uk
- up
- update
- updates
- upgrade
- upgrades
- upi
- upload
- us
- user
- username
- usernames
- users
- v
- vc
- video
- videos
- vip
- vod
- voip
- volunteer
- volunteers
- vpn
- vps
- w
- w3
- wap
- web
- webconf
- webdisk
- webmail
- webmaster
- whm
- wifi
- wiki
- wordpress
- work
- wp
- ws
- ww
- ww1
- ww2
- ww3
- www
- www2
- xml
- xmpp
- yaml