opsub.com - dns.ninja

`opsub.com`

DNSSEC	⚠️ Not signed
A	157.112.176.58^{🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.}
		PTR	`sv857.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	`ns1.xserver.jp`
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.}
		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	`opsub.com` ⭐
		A	157.112.176.58^{🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.}
			PTR	`sv857.xserver.jp`
TXT	`v=spf1 +a:sv857.xserver.jp +a:opsub.com +mx include:spf.sender.xserver.jp ~all`
SOA	`ns1.xserver.jp`root@sv0.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=1785773447

MX for

opsub.com

Same first word

opsub.com

Similar names

bsoup.cn

buops.com

bpsou.com

spobu.eu

busop.info

spobu.com

uspbo.com

bsoup.com

opsbu.com

boups.fr

obups.com

pubos.fr

poubs.org

opusb.eu

spobu.net

ubspo.com

bsoup.org

uosbp.com

posub.com

sobpu.com

pubos.com

pobus.com

bopus.de

bopus.com

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opusb.pl

opusb.com

sboup.com

subpo.com

supbo.com

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pubso.com

ospub.com

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pubos.net

ospub.ru

bosup.net

DNS History

7 records (7 active, 0 former)

●NSns1.xserver.jp2015-08-30 → 2026-08-03 · 2 obs

● 2015-08-30 23:14:40
● 2026-08-03 16:23:56

●NSns2.xserver.jp2015-08-30 → 2026-08-03 · 2 obs

● 2015-08-30 23:14:40
● 2026-08-03 16:23:56

●NSns3.xserver.jp2015-08-30 → 2026-08-03 · 2 obs

● 2015-08-30 23:14:40
● 2026-08-03 16:23:56

●NSns4.xserver.jp2015-08-30 → 2026-08-03 · 2 obs

● 2015-08-30 23:14:40
● 2026-08-03 16:23:56

●NSns5.xserver.jp2015-08-30 → 2026-08-03 · 2 obs

● 2015-08-30 23:14:40
● 2026-08-03 16:23:56

●MXopsub.com2015-08-30 → 2026-08-03 · 2 obs

● 2015-08-30 23:14:40
● 2026-08-03 16:23:56

●A157.112.176.582015-08-30 → 2026-08-03 · 2 obs

● 2015-08-30 23:14:40
● 2026-08-03 16:23:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, f.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net...	-
opsub.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 opsub.com (unsigned zone)

⏱️ Timing

Total: 1094ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`157.112.176.58`
NS	5	`ns3.xserver.jp, ns4.xserver.jp...`
MX	1	`opsub.com (pri: 0)`
TXT	1	`v=spf1 +a:sv857.xserver.jp +a:opsub.com`
SOA	1	`ns1.xserver.jp root.sv0.xserver.jp`

Analysis

Mail Server Role

opsub.com serves as a mail server for opsub.com.

IP Addresses

opsub.com has exactly one IP address — 157.112.176.58.

dns1.crosseed.co.jp, neko-co.jp, i-d-c-m.com plus two other host names have IP numbers in common with opsub.com.

Name Servers

Five name servers handle delegation for opsub.com: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

At least some of opsub.com's name servers are shared with other domains, for example genkikodomo.com, cu-com.net, bariq.jp and two more.

These name servers tend to be deployed in combination with the name servers ns4.xserver.jp and ns5.xserver.jp.

Host names carrying three IP numbers:

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

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

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

Host names resolving to a single IP address:

ns2.xserver.jp resolves to 35.72.43.26.

ns3.xserver.jp resolves to 202.226.36.247.

Mail Servers

opsub.com uses exactly one mail server, which is opsub.com.

opsub.com points to one IP number — 157.112.176.58.