`iyobull.com`

DNSSEC	⚠️ Not signed
A	183.181.90.23^{🇯🇵 XSERVER-AS183.181.90.0/23 XSERVER Inc.}
		PTR	`sv8342.xserver.jp`
NS	`ns1.xserver.jp` ⭐
		A	202.226.36.164^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
		A	202.226.36.170^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
		A	202.226.36.246^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ip-202-226-36-246.defastlink.net`
NS	`ns2.xserver.jp`
		A	35.72.43.26^{🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix}
			PTR	`ns2.xserver.jp`
NS	`ns3.xserver.jp`
		A	202.226.36.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns3.xserver.jp`
NS	`ns4.xserver.jp`
		A	183.90.224.226^{🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.}
		A	183.90.224.230^{🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.}
		A	202.226.39.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns4.xserver.jp`
NS	`ns5.xserver.jp`
		A	157.112.182.218^{🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.}
			PTR	`ip-157-112-182-218.defastlink.net`
		A	157.112.182.220^{🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.}
		A	202.226.37.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns5.xserver.jp`
MX	`iyobull.com` ⭐
		A	183.181.90.23^{🇯🇵 XSERVER-AS183.181.90.0/23 XSERVER Inc.}
			PTR	`sv8342.xserver.jp`
TXT	`v=spf1 +a:sv8342.xserver.jp +a:iyobull.com +mx include:spf.sender.xserver.jp ...`
SOA	`ns1.xserver.jp`root@xserver.jp serial=0

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1778701381

MX for

iyobull.com

Same first word

iyobull.com

Similar names

billuyo.com

youbill.com

billyou.net

DNS History

17 records (7 active, 10 former)

○NSns-213.dns.jp-e1.cloudn-service.com2016-03-10 → 2017-03-22 · 5 obs

○ 2015-12-07 13:25:34
● 2016-03-10 12:52:34
● 2017-03-22 10:39:20
○ 2026-03-25 10:45:38
○ 2026-05-13 19:52:14

○NSns-214.dns.jp-w1.cloudn-service.com2016-03-10 → 2017-03-22 · 5 obs

○ 2015-12-07 13:25:34
● 2016-03-10 12:52:34
● 2017-03-22 10:39:20
○ 2026-03-25 10:45:38
○ 2026-05-13 19:52:14

○NSns-215.dns.us-e1.cloudn-service.com2016-03-10 → 2017-03-22 · 5 obs

○ 2015-12-07 13:25:34
● 2016-03-10 12:52:34
● 2017-03-22 10:39:20
○ 2026-03-25 10:45:38
○ 2026-05-13 19:52:14

○NSns1.secure.net2015-08-18 → 2015-12-07 · 4 obs

● 2015-08-18 21:22:48
● 2015-12-07 13:25:34
○ 2016-03-10 12:52:34
○ 2026-05-13 19:52:14

●NSns1.xserver.jp2026-03-25 → 2026-05-13 · 3 obs

○ 2017-03-22 10:39:20
● 2026-03-25 10:45:38
● 2026-05-13 19:52:14

○NSns2.secure.net2015-08-18 → 2015-12-07 · 4 obs

● 2015-08-18 21:22:48
● 2015-12-07 13:25:34
○ 2016-03-10 12:52:34
○ 2026-05-13 19:52:14

●NSns2.xserver.jp2026-03-25 → 2026-05-13 · 3 obs

○ 2017-03-22 10:39:20
● 2026-03-25 10:45:38
● 2026-05-13 19:52:14

●NSns3.xserver.jp2026-03-25 → 2026-05-13 · 3 obs

○ 2017-03-22 10:39:20
● 2026-03-25 10:45:38
● 2026-05-13 19:52:14

●NSns4.xserver.jp2026-03-25 → 2026-05-13 · 3 obs

○ 2017-03-22 10:39:20
● 2026-03-25 10:45:38
● 2026-05-13 19:52:14

●NSns5.xserver.jp2026-03-25 → 2026-05-13 · 3 obs

○ 2017-03-22 10:39:20
● 2026-03-25 10:45:38
● 2026-05-13 19:52:14

○MXin.sjc.mx.trendmicro.com2015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 21:22:48
○ 2015-12-07 13:25:34
○ 2026-05-13 19:52:14

●MXiyobull.com2026-03-25 → 2026-05-13 · 3 obs

○ 2017-03-22 10:39:20
● 2026-03-25 10:45:38
● 2026-05-13 19:52:14

○MXmwbgw1.ocn.ad.jp2015-12-07 → 2017-03-22 · 5 obs

○ 2015-08-18 21:22:48
● 2015-12-07 13:25:34
● 2017-03-22 10:39:20
○ 2026-03-25 10:45:38
○ 2026-05-13 19:52:14

○MXmwbgw2.ocn.ad.jp2015-12-07 → 2017-03-22 · 5 obs

○ 2015-08-18 21:22:48
● 2015-12-07 13:25:34
● 2017-03-22 10:39:20
○ 2026-03-25 10:45:38
○ 2026-05-13 19:52:14

○A111.68.167.2502015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 21:22:48
○ 2015-12-07 13:25:34
○ 2026-05-13 19:52:14

●A183.181.90.232026-03-25 → 2026-05-13 · 3 obs

○ 2017-03-22 10:39:20
● 2026-03-25 10:45:38
● 2026-05-13 19:52:14

○A210.190.155.1432015-12-07 → 2017-03-22 · 5 obs

○ 2015-08-18 21:22:48
● 2015-12-07 13:25:34
● 2017-03-22 10:39:20
○ 2026-03-25 10:45:38
○ 2026-05-13 19:52:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, l.gtld-servers.net, b.gtld-servers.net, d.gtld-servers.net...	-
iyobull.com	ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...	-

✅ Authoritative Response

Server:202.226.39.247

NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for iyobull.com (unsigned zone)

⏱️ Timing

Total: 1889ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`183.181.90.23`
NS	5	`ns5.xserver.jp, ns1.xserver.jp...`
MX	1	`iyobull.com (pri: 0)`
TXT	1	`v=spf1 +a:sv8342.xserver.jp +a:iyobull.c`
SOA	1	`ns1.xserver.jp root.xserver.jp`

Analysis

Mail Server Role

iyobull.com serves as the mail server for iyobull.com.

IP Addresses

iyobull.com points to a single IP address: 183.181.90.23.

Other host names such as www.curtain-dream.jp, withatopic.com, sakaibunkaido.co.jp, e-pm.co.jp and curtain-dream.jp share IP numbers with iyobull.com.

Name Servers

iyobull.com is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.

At least part of the name servers for iyobull.com are shared with other domains, for instance akachanfude.net, 32search.com, bar-landscape.com, sakura-soap.com and twooo.net.

Host names with three IP numbers:

ns1.xserver.jp points to 202.226.36.164, 202.226.36.170 and 202.226.36.246.

ns4.xserver.jp points to 183.90.224.226, 183.90.224.230 and 202.226.39.247.

ns5.xserver.jp points to 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Host names with one IP number:

ns2.xserver.jp points to 35.72.43.26.

ns3.xserver.jp points to 202.226.36.247.

Mail Servers

Mail for iyobull.com is handled by a single mail server, iyobull.com.

Host iyobull.com points to IP 183.181.90.23.

iyobull.com - robtex.com

iyobull.com

com

MX for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Mail Server Role

IP Addresses

Name Servers

Mail Servers

`iyobull.com`

`com`