rext.jp - robtex.com

rext.jp

DNSSEC⚠️ Not signed
A2606:4700:3036::6815:16bb🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:ce9f🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.22.187Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.206.159🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSleonidas.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c65🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleonidas.ns.cloudflare.com
A2803:f800:50::6ca2:c365🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRleonidas.ns.cloudflare.com
A2a06:98c1:50::ac40:2365🇺🇸 Cloudflare2a06:98c1:50::/45
PTRleonidas.ns.cloudflare.com
A108.162.195.101🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleonidas.ns.cloudflare.com
A162.159.44.101Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleonidas.ns.cloudflare.com
A172.64.35.101🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleonidas.ns.cloudflare.com
NStani.ns.cloudflare.com
A2606:4700:50::adf5:3ae0🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtani.ns.cloudflare.com
A2803:f800:50::6ca2:c0e0🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtani.ns.cloudflare.com
A2a06:98c1:50::ac40:20e0🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtani.ns.cloudflare.com
A108.162.192.224🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtani.ns.cloudflare.com
A172.64.32.224🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtani.ns.cloudflare.com
A173.245.58.224🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtani.ns.cloudflare.com
MXjp1-aspmx1.worksmobile.com ⭐
A110.234.239.93🇯🇵 nhn-AS-KR110.234.236.0/22 NAVER business platform
PTRjrcvmail.worksmobile.com
MXjp1-aspmx2.worksmobile.com(20)
A110.234.239.93🇯🇵 nhn-AS-KR110.234.236.0/22 NAVER business platform
PTRjrcvmail.worksmobile.com
TXTca3-e8d17a1c05e44477958713dbba40c4d0
TXTgoogle-site-verification=rh5xqR8OTVFMliR_RBFP2JT4Hphr_9wgXK_zfUTO9Io
TXTv=spf1 +ip4:210.249.69.85 +ip4:153.127.230.98 +ip4:153.127.230.99 +ip4:160.16...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.22.187, 172.67.206.159
IPv6 hints2606:4700:3036::6815:16bb, 2606:4700:3037::ac43:ce9f
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=18, name=cloudflare-ech.com
SOAleonidas.ns.cloudflare.comdns@cloudflare.com serial=2405610395

jp

DNSSEC🔒 Signed (DS record present)
NSz.dns.jp ⭐
NSa.dns.jp
NSb.dns.jp
NSc.dns.jp
NSd.dns.jp
NSe.dns.jp
NSf.dns.jp
NSg.dns.jp
NSh.dns.jp
SOAz.dns.jproot@dns.jp serial=1780812002

Same first word

rext.ru
rext.es
rext.org
rext.com
rext.de
rext.jp
rext.net
rext.googlecode.com
rext.nl
rext.it

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DNS History

12 records (8 active, 4 former)

20162017201820192020202120222023202420252026NSleonidas.ns.cloudflare.comtani.ns.cloudflare.comns1.hosting-sys.jpns2.hosting-sys.jpMXjp1-aspmx1.worksmobile.comjp1-aspmx2.worksmobile.commail.rext.jpA104.21.22.187172.67.206.1592606:4700:3036::6815:16bb2606:4700:3037::ac43:ce9f153.122.18.175
●NSleonidas.ns.cloudflare.com2026-05-28 → 2026-06-07 · 3 obs
○ 2016-06-18 04:54:46
● 2026-05-28 16:47:28
● 2026-06-07 06:33:44
○NSns1.hosting-sys.jp2015-09-04 → 2016-06-18 · 4 obs
● 2015-09-04 07:34:46
● 2016-06-18 04:54:46
○ 2026-05-28 16:47:28
○ 2026-06-07 06:33:44
○NSns2.hosting-sys.jp2015-09-04 → 2016-06-18 · 4 obs
● 2015-09-04 07:34:46
● 2016-06-18 04:54:46
○ 2026-05-28 16:47:28
○ 2026-06-07 06:33:44
●NStani.ns.cloudflare.com2026-05-28 → 2026-06-07 · 3 obs
○ 2016-06-18 04:54:46
● 2026-05-28 16:47:28
● 2026-06-07 06:33:44
●MXjp1-aspmx1.worksmobile.com2026-05-28 → 2026-06-07 · 3 obs
○ 2016-06-18 04:54:46
● 2026-05-28 16:47:28
● 2026-06-07 06:33:44
●MXjp1-aspmx2.worksmobile.com2026-05-28 → 2026-06-07 · 3 obs
○ 2016-06-18 04:54:46
● 2026-05-28 16:47:28
● 2026-06-07 06:33:44
○MXmail.rext.jp2015-09-04 → 2016-06-18 · 4 obs
● 2015-09-04 07:34:46
● 2016-06-18 04:54:46
○ 2026-05-28 16:47:28
○ 2026-06-07 06:33:44
●A104.21.22.1872026-05-28 → 2026-06-07 · 3 obs
○ 2016-06-18 04:54:46
● 2026-05-28 16:47:28
● 2026-06-07 06:33:44
○A153.122.18.1752015-09-04 → 2016-06-18 · 4 obs
● 2015-09-04 07:34:46
● 2016-06-18 04:54:46
○ 2026-05-28 16:47:28
○ 2026-06-07 06:33:44
●A172.67.206.1592026-05-28 → 2026-06-07 · 3 obs
○ 2016-06-18 04:54:46
● 2026-05-28 16:47:28
● 2026-06-07 06:33:44
●A2606:4700:3036::6815:16bb2026-05-28 → 2026-06-07 · 3 obs
○ 2016-06-18 04:54:46
● 2026-05-28 16:47:28
● 2026-06-07 06:33:44
●A2606:4700:3037::ac43:ce9f2026-05-28 → 2026-06-07 · 3 obs
○ 2016-06-18 04:54:46
● 2026-05-28 16:47:28
● 2026-06-07 06:33:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpg.dns.jp, c.dns.jp, a.dns.jp, d.dns.jp...-
rext.jpleonidas.ns.cloudflare.com, tani.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.195.101

NS records: leonidas.ns.cloudflare.com, tani.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rext.jp (unsigned zone)

⏱️ Timing

Total: 792ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.22.187, 172.67.206.159
AAAA22606:4700:3037::ac43:ce9f, 2606:4700:3036::6815:16bb
NS2leonidas.ns.cloudflare.com, tani.ns.cloudflare.com
MX2jp1-aspmx1.worksmobile.com (pri: 10), jp1-aspmx2.worksmobile.com (pri: 20)
TXT3ca3-e8d17a1c05e44477958713dbba40c4d0, google-site-verification=rh5xqR8OTVFMliR...
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1leonidas.ns.cloudflare.com dns.cloudflar

Analysis

IP Addresses

rext.jp maps to 4 IP numbers, specifically 104.21.22.187, 172.67.206.159, 2606:4700:3036::6815:16bb and 2606:4700:3037::ac43:ce9f.

Two other host names, along with sweet.dosug71.net, adcoins.cc and zghntl.com, also share IP numbers with rext.jp.

Name Servers

Two name servers handle the delegation for rext.jp: leonidas.ns.cloudflare.com and tani.ns.cloudflare.com.

rext.jp shares its NS records with other domains, for example wonder.co.jp, shinseido.co.jp, mesvid.com and two others.

There is at least partial name server overlap between rext.jp and other domains — tiptop.org, metropeak.co.uk, airedalemotorco.co.uk and two more among them.

The name servers phoenix.ns.cloudflare.com, tricia.ns.cloudflare.com and nash.ns.cloudflare.com are often found in combination with these name servers.

DNS names with 6 IP addresses:

leonidas.ns.cloudflare.com maps to six IP addresses: 108.162.195.101, 162.159.44.101, 172.64.35.101 and three others.

tani.ns.cloudflare.com maps to six IP addresses: 108.162.192.224, 172.64.32.224, 173.245.58.224 and three others.

Mail Servers

rext.jp is served by two mail servers, jp1-aspmx1.worksmobile.com and jp1-aspmx2.worksmobile.com.

Among the domains sharing a mail server setup with rext.jp are auntierosa.com, sskamo.co.jp, bpo-info.biz and two others.

There is at least a partial MX overlap between rext.jp and other domains, including with-us.co.jp, thesalons.jp, hakushinkai.com and two others.

These mail servers are routinely found in combination with the mail servers aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.

jp1-aspmx1.worksmobile.com directs to 110.234.239.93, as does jp1-aspmx2.worksmobile.com — both hostnames resolve to that one IP address.

jp1-aspmx1.worksmobile.com along with jp1-aspmx2.worksmobile.com each resolve to 110.234.239.93 IP addresses.