HTTP/1.1 302 Found
Date: Mon, 14 Jul 2025 14:51:27 GMT
Server: Apache
X-Content-Type-Options: nosniff
Vary: Accept-Encoding
Location: https://www.iana.org/assignments/special-use-domain-names
Content-Length: 0
X-Frame-Options: DENY
X-Content-Type-Options: nosniff
Referrer-Policy: same-origin
Cross-Origin-Opener-Policy: same-origin
Cache-Control: public, s-maxage=1800, max-age=3600
Expires: Mon, 14 Jul 2025 15:51:27 GMT
Content-Type: text/html; charset=utf-8
Content-Security-Policy: upgrade-insecure-requests; default-src 'self' https://*.iana.org; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://www.google.com https://cse.google.com https://clients1.google.com; style-src 'self' 'unsafe-inline' https://www.google.com; child-src 'self' https://www.youtube.com https://clients1.google.com https://cse.google.com https://www.google.com/; img-src 'self' https://data.iana.org https://www.iana.org https://www.google.com https://www.googleapis.com https://clients1.google.com https://*.gstatic.com;
Strict-Transport-Security: max-age=48211200; preload
HTTP/1.1 302 Found
Date: Mon, 14 Jul 2025 14:51:28 GMT
Server: Apache
X-Content-Type-Options: nosniff
Vary: Accept-Encoding
Location: https://www.iana.org/assignments/special-use-domain-names/special-use-domain-names.xhtml
Content-Length: 0
X-Frame-Options: DENY
X-Content-Type-Options: nosniff
Referrer-Policy: same-origin
Cross-Origin-Opener-Policy: same-origin
Cache-Control: public, s-maxage=1800, max-age=3600
Expires: Mon, 14 Jul 2025 15:51:28 GMT
Content-Type: text/html; charset=utf-8
Content-Security-Policy: upgrade-insecure-requests; default-src 'self' https://*.iana.org; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://www.google.com https://cse.google.com https://clients1.google.com; style-src 'self' 'unsafe-inline' https://www.google.com; child-src 'self' https://www.youtube.com https://clients1.google.com https://cse.google.com https://www.google.com/; img-src 'self' https://data.iana.org https://www.iana.org https://www.google.com https://www.googleapis.com https://clients1.google.com https://*.gstatic.com;
Strict-Transport-Security: max-age=48211200; preload
HTTP/1.1 200 OK
Date: Mon, 14 Jul 2025 14:51:28 GMT
Server: Apache
Last-Modified: Mon, 16 Jun 2025 19:35:23 GMT
Content-Encoding: gzip
X-Content-Type-Options: nosniff
Vary: Accept-Encoding
X-Frame-Options: DENY
X-Content-Type-Options: nosniff
Referrer-Policy: same-origin
Cross-Origin-Opener-Policy: same-origin
Cache-Control: public, s-maxage=1800, max-age=3600
Expires: Mon, 14 Jul 2025 15:51:28 GMT
Content-Security-Policy: upgrade-insecure-requests; default-src 'self' https://*.iana.org; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://www.google.com https://cse.google.com https://clients1.google.com; style-src 'self' 'unsafe-inline' https://www.google.com; child-src 'self' https://www.youtube.com https://clients1.google.com https://cse.google.com https://www.google.com/; img-src 'self' https://data.iana.org https://www.iana.org https://www.google.com https://www.googleapis.com https://clients1.google.com https://*.gstatic.com;
Content-Length: 1292
Content-Type: text/html; charset=UTF-8
Strict-Transport-Security: max-age=48211200; preload
Special-Use Domain Names
Special-Use Domain Names
- Created
- 2012-07-06
- Last Updated
- 2025-06-16
- Available Formats
-

XML

HTML

Plain text
Registry Included Below
Special-Use Domain Names
- Registration Procedure(s)
-
Standards Action or IESG Approval
- Reference
- [RFC6761]
- Note
-
The "Special Use" designation applies to both the listed domains and their subdomains.
- Available Formats
-

CSV
Name |
Reference |
alt. |
[RFC9476] |
6tisch.arpa. |
[RFC9031] |
eap-noob.arpa. |
[RFC9140] |
home.arpa. |
[RFC8375] |
10.in-addr.arpa. |
[RFC6761] |
254.169.in-addr.arpa. |
[RFC6762] |
16.172.in-addr.arpa. |
[RFC6761] |
17.172.in-addr.arpa. |
[RFC6761] |
18.172.in-addr.arpa. |
[RFC6761] |
19.172.in-addr.arpa. |
[RFC6761] |
20.172.in-addr.arpa. |
[RFC6761] |
21.172.in-addr.arpa. |
[RFC6761] |
22.172.in-addr.arpa. |
[RFC6761] |
23.172.in-addr.arpa. |
[RFC6761] |
24.172.in-addr.arpa. |
[RFC6761] |
25.172.in-addr.arpa. |
[RFC6761] |
26.172.in-addr.arpa. |
[RFC6761] |
27.172.in-addr.arpa. |
[RFC6761] |
28.172.in-addr.arpa. |
[RFC6761] |
29.172.in-addr.arpa. |
[RFC6761] |
30.172.in-addr.arpa. |
[RFC6761] |
31.172.in-addr.arpa. |
[RFC6761] |
170.0.0.192.in-addr.arpa. |
[RFC8880] |
171.0.0.192.in-addr.arpa. |
[RFC8880] |
168.192.in-addr.arpa. |
[RFC6761] |
8.e.f.ip6.arpa. |
[RFC6762] |
9.e.f.ip6.arpa. |
[RFC6762] |
a.e.f.ip6.arpa. |
[RFC6762] |
b.e.f.ip6.arpa. |
[RFC6762] |
ipv4only.arpa. |
[RFC8880] |
resolver.arpa. |
[RFC9462] |
service.arpa. |
[RFC9665] |
example. |
[RFC6761] |
example.com. |
[RFC6761] |
example.net. |
[RFC6761] |
example.org. |
[RFC6761] |
invalid. |
[RFC6761] |
local. |
[RFC6762] |
localhost. |
[RFC6761] |
onion. |
[RFC7686] |
test. |
[RFC6761] |