extensibleweb.org - dns.ninja

extensibleweb.org

DNSSEC⚠️ Not signed
A2600:3c07:e001:b5::1πŸ‡«πŸ‡· AKAMAI-LINODE-AP2600:3c07::/32 Akamai Technologies
PTRsmtp.w3ctag.org
A172.232.50.116πŸ‡«πŸ‡· AKAMAI-LINODE-AP172.232.32.0/19 Akamai Technologies
NSns1.w3ctag.org ⭐
A2600:3c07:e001:b5::1πŸ‡«πŸ‡· AKAMAI-LINODE-AP2600:3c07::/32 Akamai Technologies
PTRsmtp.w3ctag.org
A172.232.50.116πŸ‡«πŸ‡· AKAMAI-LINODE-AP172.232.32.0/19 Akamai Technologies
PTRsmtp.w3ctag.org
NSns2.w3ctag.org
A2600:14c0:6::3πŸ‡ΊπŸ‡Έ Akamai2600:14c0:6::/48 Technologies
PTRc1-3.akashield.net
A92.123.94.3πŸ‡³πŸ‡± Akamai92.123.94.0/24 Technologies
PTRc1-3.akashield.net
NSns3.w3ctag.org
A2600:14c0:7::3πŸ‡ΊπŸ‡Έ Akamai2600:14c0:7::/48 Technologies
PTRc2-3.akashield.net
A92.123.95.3πŸ‡³πŸ‡± Akamai92.123.95.0/24 Technologies
PTRc2-3.akashield.net
NSns4.w3ctag.org
A2600:14c0:7::4πŸ‡ΊπŸ‡Έ Akamai2600:14c0:7::/48 Technologies
PTRc2-4.akashield.net
A92.123.95.4πŸ‡³πŸ‡± Akamai92.123.95.0/24 Technologies
PTRc2-4.akashield.net
NSns5.w3ctag.org
A2600:14c0:7::2πŸ‡ΊπŸ‡Έ Akamai2600:14c0:7::/48 Technologies
PTRc2-2.akashield.net
A92.123.95.2πŸ‡³πŸ‡± Akamai92.123.95.0/24 Technologies
PTRc2-2.akashield.net
MXsmtp.w3ctag.org ⭐
A2600:3c07:e001:b5::1πŸ‡«πŸ‡· AKAMAI-LINODE-AP2600:3c07::/32 Akamai Technologies
PTRsmtp.w3ctag.org
A172.232.50.116πŸ‡«πŸ‡· AKAMAI-LINODE-AP172.232.32.0/19 Akamai Technologies
PTRsmtp.w3ctag.org
TXTv=spf1 a:smtp.w3ctag.org -all
SOAns1.w3ctag.orghostmaster@w3ctag.org 2026-07-01 #33

org

DNSSECπŸ”’ Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1785869195
πŸ”’ HSTS Preload (+subdomains)

Same first word

DNS History

11 records (8 active, 3 former)

20162017201820192020202120222023202420252026NSns1.w3ctag.orgns2.w3ctag.orgns3.w3ctag.orgns4.w3ctag.orgns5.w3ctag.orgMXsmtp.w3ctag.orgA172.232.50.1162600:3c07:e001:b5::12600:3c01::1b:35002600:3c01:e000:132:20::74.207.249.169
●NSns1.w3ctag.org2015-05-28 β†’ 2026-08-04 Β· 2 obs
● 2015-05-28 10:19:58
● 2026-08-04 18:56:54
●NSns2.w3ctag.org2015-05-28 β†’ 2026-08-04 Β· 2 obs
● 2015-05-28 10:19:58
● 2026-08-04 18:56:54
●NSns3.w3ctag.org2015-05-28 β†’ 2026-08-04 Β· 2 obs
● 2015-05-28 10:19:58
● 2026-08-04 18:56:54
●NSns4.w3ctag.org2015-05-28 β†’ 2026-08-04 Β· 2 obs
● 2015-05-28 10:19:58
● 2026-08-04 18:56:54
●NSns5.w3ctag.org2015-05-28 β†’ 2026-08-04 Β· 2 obs
● 2015-05-28 10:19:58
● 2026-08-04 18:56:54
●MXsmtp.w3ctag.org2015-05-28 β†’ 2026-08-04 Β· 2 obs
● 2015-05-28 10:19:58
● 2026-08-04 18:56:54
●A172.232.50.1162026-03-08 β†’ 2026-08-04 Β· 3 obs
β—‹ 2017-06-24 11:17:36
● 2026-03-08 19:22:04
● 2026-08-04 18:56:54
β—‹A2600:3c01::1b:35002016-01-17 β†’ 2016-01-17 Β· 4 obs
β—‹ 2015-05-28 10:19:58
● 2016-01-17 12:56:34
β—‹ 2016-04-09 14:16:48
β—‹ 2026-08-04 18:56:54
β—‹A2600:3c01:e000:132:20::2016-04-09 β†’ 2017-06-24 Β· 5 obs
β—‹ 2016-01-17 12:56:34
● 2016-04-09 14:16:48
● 2017-06-24 11:17:36
β—‹ 2026-03-08 19:22:04
β—‹ 2026-08-04 18:56:54
●A2600:3c07:e001:b5::12026-03-08 β†’ 2026-08-04 Β· 3 obs
β—‹ 2017-06-24 11:17:36
● 2026-03-08 19:22:04
● 2026-08-04 18:56:54
β—‹A74.207.249.1692015-05-28 β†’ 2017-06-24 Β· 4 obs
● 2015-05-28 10:19:58
● 2017-06-24 11:17:36
β—‹ 2026-03-08 19:22:04
β—‹ 2026-08-04 18:56:54

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
extensibleweb.orgns4.w3ctag.org, ns1.w3ctag.org, ns2.w3ctag.org, ns3.w3ctag.org...10 records

βœ… Authoritative Response

Server:92.123.94.3

NS records: ns4.w3ctag.org, ns1.w3ctag.org, ns2.w3ctag.org, ns3.w3ctag.org, ns5.w3ctag.org

πŸ”’ DNSSEC Status

πŸ” Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 2233ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A1172.232.50.116
AAAA12600:3c07:e001:b5::1
NS5ns1.w3ctag.org, ns3.w3ctag.org...
MX1smtp.w3ctag.org (pri: 10)
TXT1v=spf1 a:smtp.w3ctag.org -all
SOA1ns1.w3ctag.org hostmaster.w3ctag.org

πŸ“Œ Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns5.w3ctag.org, ns4.w3ctag.org, ns3.w3ctag.org...)

Analysis

IP Addresses

extensibleweb.org has two IP addresses: 172.232.50.116 and 2600:3c07:e001:b5::1

extensibleweb.org shares its IP numbers with other host names, including ns1.w3ctag.org, dns.w3ctag.org, smtp.w3ctag.org and w3ctag.org.

Name Servers

Five name servers handle delegation for extensibleweb.org: ns1.w3ctag.org, ns2.w3ctag.org, ns3.w3ctag.org and two others.

extensibleweb.org and other domains like w3ctag.org share at least a portion of their name servers.

These name servers tend to be deployed in combination with the name servers ns4.w3ctag.org and ns5.w3ctag.org.

Host names pointing to two IP addresses:

The A records for ns1.w3ctag.org return 172.232.50.116 and 2600:3c07:e001:b5::1.

The A records for ns2.w3ctag.org return 92.123.94.3 and 2600:14c0:6::3.

The A records for ns3.w3ctag.org return 92.123.95.3 and 2600:14c0:7::3.

The A records for ns4.w3ctag.org return 92.123.95.4 and 2600:14c0:7::4.

The A records for ns5.w3ctag.org return 92.123.95.2 and 2600:14c0:7::2.

Mail Servers

extensibleweb.org uses one mail server β€” smtp.w3ctag.org.

extensibleweb.org, w3ctag.org and extensiblewebmanifesto.org all share the same mail server setup.

smtp.w3ctag.org directs to two IP numbers, 172.232.50.116 and 2600:3c07:e001:b5::1.