bwsys.jp - dns.ninja

`bwsys.jp`

DNSSEC	⚠️ Not signed
A	2400:8500:1301:162::18:1^{🇯🇵 GMO-INTERNET2400:8500:1000::/36 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
		PTR	`v2008.coreserver.jp`
A	163.44.177.18^{🇯🇵 GMO-INTERNET163.44.177.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
NS	`ns1.value-domain.com` ⭐
		A	172.64.52.38^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.value-domain.com`
		A	172.64.53.3^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns3.value-domain.com` ⚠️ Not in zone NS records
		A	172.64.52.38^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns4.value-domain.com` ⚠️ Not in zone NS records
		A	172.64.53.3^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns5.value-domain.com` ⚠️ Not in zone NS records
		A	172.64.52.38^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`bwsys.jp` ⭐
		A	2400:8500:1301:162::18:1^{🇯🇵 GMO-INTERNET2400:8500:1000::/36 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`v2008.coreserver.jp`
		A	163.44.177.18^{🇯🇵 GMO-INTERNET163.44.177.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`v2008.coreserver.jp`
TXT	`v=spf1 ip4:163.44.177.18 ip6:2400:8500:1301:162::18:1 include:mxr.valueserver...`
SOA	`ns1.value-domain.com`hostmaster@bwsys.jp 2025-12-03 #1

`jp`

	DNSSEC	🔒 Signed (DS record present)
	NS	`z.dns.jp` ⭐
	NS	`a.dns.jp`
	NS	`b.dns.jp`
	NS	`c.dns.jp`
	NS	`d.dns.jp`
	NS	`e.dns.jp`
	NS	`f.dns.jp`
	NS	`g.dns.jp`
	NS	`h.dns.jp`
	SOA	`z.dns.jp`root@dns.jp serial=1784958303

MX for

bwsys.jp

Same first word

bwsys.net

bwsys.jp

Similar names

bsysw.net

sbsyw.cn

bssyw.com

sbysw.com

wsbys.com

ybsws.com

yssbw.cn

sybws.com

wbsys.co.uk

wbssy.com

wbsys.de

bsysw.com.cn

wbsys.top

ywbss.com

wbsys.com

wbsys.com.mx

sybsw.com.cn

yswsb.com

wbsys.org

DNS History

9 records (8 active, 1 former)

●NSns1.value-domain.com2015-07-06 → 2026-07-25 · 2 obs

● 2015-07-06 01:53:16
● 2026-07-25 06:06:46

●NSns2.value-domain.com2015-07-06 → 2026-07-25 · 2 obs

● 2015-07-06 01:53:16
● 2026-07-25 06:06:46

●NSns3.value-domain.com2026-04-05 → 2026-07-25 · 3 obs

○ 2015-07-06 01:53:16
● 2026-04-05 01:12:24
● 2026-07-25 06:06:46

●NSns4.value-domain.com2026-04-05 → 2026-07-25 · 3 obs

○ 2015-07-06 01:53:16
● 2026-04-05 01:12:24
● 2026-07-25 06:06:46

●NSns5.value-domain.com2026-04-05 → 2026-07-25 · 3 obs

○ 2015-07-06 01:53:16
● 2026-04-05 01:12:24
● 2026-07-25 06:06:46

●MXbwsys.jp2015-07-06 → 2026-07-25 · 2 obs

● 2015-07-06 01:53:16
● 2026-07-25 06:06:46

●A163.44.177.182026-04-05 → 2026-07-25 · 3 obs

○ 2017-02-02 11:43:58
● 2026-04-05 01:12:24
● 2026-07-25 06:06:46

○A202.172.25.42015-07-06 → 2017-02-02 · 4 obs

● 2015-07-06 01:53:16
● 2017-02-02 11:43:58
○ 2026-04-05 01:12:24
○ 2026-07-25 06:06:46

●A2400:8500:1301:162::18:12026-04-05 → 2026-07-25 · 3 obs

○ 2017-02-02 11:43:58
● 2026-04-05 01:12:24
● 2026-07-25 06:06:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
bwsys.jp	ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com, ns4.value-domain.com...	-

✅ Authoritative Response

Server:172.64.52.38

NS records: ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com, ns4.value-domain.com, ns5.value-domain.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bwsys.jp (unsigned zone)

⏱️ Timing

Total: 1021ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`163.44.177.18`
AAAA	1	`2400:8500:1301:162::18:1`
NS	2	`ns1.value-domain.com, ns2.value-domain.com`
MX	1	`bwsys.jp (pri: 10)`
TXT	1	`v=spf1 ip4:163.44.177.18 ip6:2400:8500:1`
SOA	1	`ns1.value-domain.com hostmaster.bwsys.jp`

Analysis

Mail Server Role

bwsys.jp serves as a mail server for bwsys.jp.

IP Addresses

bwsys.jp resolves to the IP addresses 163.44.177.18 and 2400:8500:1301:162::18:1

netjapan.com, sakaiwebnet.com, lsapo.jp plus two other host names have IP numbers in common with bwsys.jp.

Name Servers

Five name servers handle delegation for bwsys.jp: ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com and two others.

bwsys.jp partially shares its NS delegation with several other domains, including yamayuri-w.net, kochi-koyo-kyogikai.jp, ct-ac.com and two others.

These name servers tend to appear together with the name servers ns4.value-domain.com, ns5.value-domain.com and ns11.value-domain.com, plus two others.

Host names resolving to a single IP address:

ns1.value-domain.com points to 172.64.52.38.

ns2.value-domain.com points to 172.64.53.3.

ns3.value-domain.com points to 172.64.52.38.

ns4.value-domain.com points to 172.64.53.3.

ns5.value-domain.com points to 172.64.52.38.

Three host names point to 172.64.52.38: ns1.value-domain.com, ns3.value-domain.com and ns5.value-domain.com.

ns2.value-domain.com and ns4.value-domain.com are host names that each point to 172.64.53.3 IP addresses.

Mail Servers

bwsys.jp uses exactly one mail server, which is bwsys.jp.

The host bwsys.jp resolves to 163.44.177.18 and 2400:8500:1301:162::18:1 — two IP addresses.