double-t.net - robtex.com

double-t.net

DNSSEC⚠️ Not signed
A2403:3a00:101:9:219:94:128:169🇯🇵 SAKURA-C2403:3a00::/32 SAKURA Internet // OSAKA BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTRwww929.sakura.ne.jp
A219.94.128.169🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
NSmaster.dns.ne.jp ⭐
A210.224.172.18🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRmaster.dns.ne.jp
NSns1.dns.ne.jp
A61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRns1.dns.ne.jp
NSns2.dns.ne.jp
A133.167.21.1🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan
PTRns2.dns.ne.jp
MXdouble-t.net ⭐
A2403:3a00:101:9:219:94:128:169🇯🇵 SAKURA-C2403:3a00::/32 SAKURA Internet // OSAKA BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTRwww929.sakura.ne.jp
A219.94.128.169🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww929.sakura.ne.jp
TXTv=spf1 a:www929.sakura.ne.jp mx ~all
SOAmaster.dns.ne.jptech@sakura.ad.jp 2025-12-03 #3

net

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1785770922

MX for

double-t.net

Same first word

double-t.ca
double-t.club
double-t.com
double-t.net
double-t.de
double-t.biz
double-t.jp

Similar names

blue-dot.cn
blue-dot.org
blue-dot.me
dot-blue.de
blue-dot.com
blue-dot.co
dot-blue.net
blue-dot.net

DNS History

7 records (6 active, 1 former)

20162017201820192020202120222023202420252026NSmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpMXdouble-t.netA219.94.128.1692403:3a00:101:9:219:94:128:169219.94.162.172
●NSmaster.dns.ne.jp2015-08-20 → 2026-08-03 · 2 obs
● 2015-08-20 05:54:54
● 2026-08-03 15:54:10
●NSns1.dns.ne.jp2015-08-20 → 2026-08-03 · 2 obs
● 2015-08-20 05:54:54
● 2026-08-03 15:54:10
●NSns2.dns.ne.jp2015-08-20 → 2026-08-03 · 2 obs
● 2015-08-20 05:54:54
● 2026-08-03 15:54:10
●MXdouble-t.net2015-08-20 → 2026-08-03 · 2 obs
● 2015-08-20 05:54:54
● 2026-08-03 15:54:10
●A219.94.128.1692026-03-17 → 2026-08-03 · 3 obs
○ 2017-09-21 02:52:02
● 2026-03-17 19:40:38
● 2026-08-03 15:54:10
○A219.94.162.1722015-08-20 → 2017-09-21 · 4 obs
● 2015-08-20 05:54:54
● 2017-09-21 02:52:02
○ 2026-03-17 19:40:38
○ 2026-08-03 15:54:10
●A2403:3a00:101:9:219:94:128:1692026-03-17 → 2026-08-03 · 3 obs
○ 2017-09-21 02:52:02
● 2026-03-17 19:40:38
● 2026-08-03 15:54:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netk.gtld-servers.net, a.gtld-servers.net, m.gtld-servers.net, i.gtld-servers.net...-
double-t.netns1.dns.ne.jp, ns2.dns.ne.jp-

✅ Authoritative Response

Server:133.167.21.1

NS records: ns1.dns.ne.jp, ns2.dns.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for double-t.net (unsigned zone)

⏱️ Timing

Total: 424ms | Queries: -

📄 Records

TypeCountSample Data
A1219.94.128.169
AAAA12403:3a00:101:9:219:94:128:169
NS2ns1.dns.ne.jp, ns2.dns.ne.jp
MX1double-t.net (pri: 10)
TXT1v=spf1 a:www929.sakura.ne.jp mx ~all
SOA1master.dns.ne.jp tech.sakura.ad.jp

Analysis

Mail Server Role

double-t.net serves as a mail server for double-t.net.

IP Addresses

double-t.net directs to two IP numbers, 219.94.128.169 and 2403:3a00:101:9:219:94:128:169

jonpan-rtw.com, faelles-design.co.jp, anison.jp plus two other host names have IP numbers in common with double-t.net.

Name Servers

double-t.net is served by three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

double-t.net shares at least some of its name servers with other domains, including shop.amint.co.jp, enenen.net, yanagikasei.com and two others.

These name servers are frequently seen alongside the name servers dns.sakura.ad.jp.

master.dns.ne.jp has IP address 210.224.172.18, ns1.dns.ne.jp has IP address 61.211.236.1 and ns2.dns.ne.jp has IP address 133.167.21.1 — one address each.

Mail Servers

double-t.net uses exactly one mail server, which is double-t.net.

double-t.net points to two IP addresses: 219.94.128.169 and 2403:3a00:101:9:219:94:128:169.