cws.gr.jp - robtex.com

cws.gr.jp

DNSSEC⚠️ Not signed
A2403:3a00:101:16:182:48:49:182🇯🇵 SAKURA-C2403:3a00::/32 SAKURA Internet // OSAKA BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTRwww2242.sakura.ne.jp
A182.48.49.182🇯🇵 SAKURA-C182.48.0.0/18 (6/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
MXcws.gr.jp ⭐
A2403:3a00:101:16:182:48:49:182🇯🇵 SAKURA-C2403:3a00::/32 SAKURA Internet // OSAKA BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTRwww2242.sakura.ne.jp
A182.48.49.182🇯🇵 SAKURA-C182.48.0.0/18 (6/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww2242.sakura.ne.jp
TXTv=spf1 a:www2242.sakura.ne.jp mx ~all
SOAmaster.dns.ne.jptech@sakura.ad.jp 2025-06-19 #1

gr.jp

DNSSEC⚠️ Not signed
TXTgr.jp.
WOT: SAFE (70/100)
WOT: SAFE (93/100)

MX for

cws.gr.jp

Same first word

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DNS History

10 records (6 active, 4 former)

20162017201820192020202120222023202420252026NSmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpdns01.cside.jpdns02.cside.jpMXcws.gr.jpmail06s.cside.jpA182.48.49.1822403:3a00:101:16:182:48:49:182202.191.112.42
○NSdns01.cside.jp2015-08-08 → 2017-03-20 · 4 obs
● 2015-08-08 18:11:54
● 2017-03-20 15:03:54
○ 2026-03-29 07:50:04
○ 2026-04-13 08:43:40
○NSdns02.cside.jp2015-08-08 → 2016-03-12 · 4 obs
● 2015-08-08 18:11:54
● 2016-03-12 00:06:50
○ 2017-03-20 15:03:54
○ 2026-04-13 08:43:40
●NSmaster.dns.ne.jp2026-03-29 → 2026-04-13 · 3 obs
○ 2017-03-20 15:03:54
● 2026-03-29 07:50:04
● 2026-04-13 08:43:40
●NSns1.dns.ne.jp2026-03-29 → 2026-04-13 · 3 obs
○ 2017-03-20 15:03:54
● 2026-03-29 07:50:04
● 2026-04-13 08:43:40
●NSns2.dns.ne.jp2026-03-29 → 2026-04-13 · 3 obs
○ 2017-03-20 15:03:54
● 2026-03-29 07:50:04
● 2026-04-13 08:43:40
●MXcws.gr.jp2026-03-29 → 2026-04-13 · 3 obs
○ 2017-03-20 15:03:54
● 2026-03-29 07:50:04
● 2026-04-13 08:43:40
○MXmail06s.cside.jp2015-08-08 → 2017-03-20 · 4 obs
● 2015-08-08 18:11:54
● 2017-03-20 15:03:54
○ 2026-03-29 07:50:04
○ 2026-04-13 08:43:40
●A182.48.49.1822026-03-29 → 2026-04-13 · 3 obs
○ 2017-03-20 15:03:54
● 2026-03-29 07:50:04
● 2026-04-13 08:43:40
○A202.191.112.422015-08-08 → 2017-03-20 · 4 obs
● 2015-08-08 18:11:54
● 2017-03-20 15:03:54
○ 2026-03-29 07:50:04
○ 2026-04-13 08:43:40
●A2403:3a00:101:16:182:48:49:1822026-03-29 → 2026-04-13 · 3 obs
○ 2017-03-20 15:03:54
● 2026-03-29 07:50:04
● 2026-04-13 08:43:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpe.dns.jp, f.dns.jp, c.dns.jp, a.dns.jp...-
cws.gr.jpns1.dns.ne.jp, ns2.dns.ne.jp2 records

✅ 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 cws.gr.jp (unsigned zone)

⏱️ Timing

Total: 924ms | Queries: -

📄 Records

TypeCountSample Data
A1182.48.49.182
AAAA12403:3a00:101:16:182:48:49:182
NS2ns1.dns.ne.jp, ns2.dns.ne.jp
MX1cws.gr.jp (pri: 10)
TXT1v=spf1 a:www2242.sakura.ne.jp mx ~all
SOA1master.dns.ne.jp tech.sakura.ad.jp

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.dns.ne.jp, ns2.dns.ne.jp)

Analysis

Mail Server Role

cws.gr.jp serves as the mail server for cws.gr.jp.

IP Addresses

The entity cws.gr.jp points to two IP numbers: 2403:3a00:101:16:182:48:49:182 and 182.48.49.182.

For instance, other host names kan-en.jp, d-y.rdy.jp, aura-net.com, www2242.sakura.ne.jp and www.aqbevolution.com share IP numbers with cws.gr.jp.

Name Servers

The delegation for cws.gr.jp is handled by three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

cws.gr.jp shares name servers with other domains at least partially, for example kyoin.biz, kodamaiin.net, super-cms.com, oitaku.com and gunki.sakura.ne.jp.

These name servers are commonly used with dns.sakura.ad.jp.

Host names with a single IP address: master.dns.ne.jp points to 210.224.172.18; ns1.dns.ne.jp points to 61.211.236.1; ns2.dns.ne.jp points to 133.167.21.1.

Mail Servers

cws.gr.jp is handled by a single mail server, cws.gr.jp.

cws.gr.jp resolves to two IPs: 2403:3a00:101:16:182:48:49:182 and 182.48.49.182.