`windowsystemupdate.com`

DNSSEC	⚠️ Not signed
A	2600:1900:4001:96e:8000:1:e1f6:cd2c^{🇺🇸 Google2600:1900:4000::/44}
A	34.41.139.193^{🇺🇸 Google34.41.0.0/16}
NS	`ns1.hwrn.net` ⭐
		A	2600:1900:4000:cb7c:8000::^{🇺🇸 Google2600:1900:4000::/44}
		A	2600:1900:4061:58e:8000::^{🇳🇱 Google2600:1900:4060::/44}
		A	2600:1900:4081:2f2:8000::^{🇸🇬 Google2600:1900:4080::/44}
		A	34.32.207.228^{🇳🇱 Google34.32.128.0/17}
			PTR	`228.207.32.34.bc.googleusercontent.com`
		A	34.46.191.171^{🇺🇸 Google34.46.0.0/16}
			PTR	`171.191.46.34.bc.googleusercontent.com`
		A	35.187.247.195^{🇸🇬 Google35.187.240.0/20}
			PTR	`195.247.187.35.bc.googleusercontent.com`
NS	`ns2.hwrn.net`
		A	2600:1900:4000:cb7c:8000:4::^{🇺🇸 Google2600:1900:4000::/44}
		A	2600:1900:4061:58e:8000:4::^{🇳🇱 Google2600:1900:4060::/44}
		A	2600:1900:4081:2f2:8000:4::^{🇸🇬 Google2600:1900:4080::/44}
		A	34.124.162.145^{🇸🇬 Google34.124.160.0/20}
			PTR	`145.162.124.34.bc.googleusercontent.com`
		A	34.136.0.93^{🇺🇸 Google34.136.0.0/20}
			PTR	`93.0.136.34.bc.googleusercontent.com`
		A	34.147.11.210^{🇳🇱 Google34.147.0.0/20}
			PTR	`210.11.147.34.bc.googleusercontent.com`
MX	`mx1.csof.net` ⭐
		A	46.4.12.146^{🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3}
			PTR	`static.146.12.4.46.clients.your-server.de`
MX	`mx2.csof.net` ⭐
		A	46.4.10.173^{🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3}
			PTR	`static.173.10.4.46.clients.your-server.de`
TXT	`v=spf1 include:_incspfcheck.mailspike.net -all`
SOA	`ns1.hwrn.net`hostmaster@hwrn.net 2026-05-15 #1

`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=1778811906

⚠️ On DNS blocklist: tif

Subdomains

api.windowsystemupdate.com

Same first word

windowsystemupdate.com

DNS History

15 records (6 active, 9 former)

●NSns1.hwrn.net2026-03-19 → 2026-05-15 · 3 obs

○ 2017-08-10 10:12:44
● 2026-03-19 08:56:12
● 2026-05-15 02:38:30

○NSns15.domaincontrol.com2017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 10:12:44
○ 2026-03-19 08:56:12
○ 2026-05-15 02:38:30

○NSns16.domaincontrol.com2017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 10:12:44
○ 2026-03-19 08:56:12
○ 2026-05-15 02:38:30

●NSns2.hwrn.net2026-03-19 → 2026-05-15 · 3 obs

○ 2017-08-10 10:12:44
● 2026-03-19 08:56:12
● 2026-05-15 02:38:30

●MXmx1.csof.net2026-03-19 → 2026-05-15 · 2 obs

● 2026-03-19 08:56:12
● 2026-05-15 02:38:30

●MXmx2.csof.net2026-03-19 → 2026-05-15 · 2 obs

● 2026-03-19 08:56:12
● 2026-05-15 02:38:30

○A184.168.221.412017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 10:12:44
○ 2026-03-19 08:56:12
○ 2026-05-15 02:38:30

○A184.168.221.552017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 10:12:44
○ 2026-03-19 08:56:12
○ 2026-05-15 02:38:30

○A184.168.221.562017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 10:12:44
○ 2026-03-19 08:56:12
○ 2026-05-15 02:38:30

○A184.168.221.572017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 10:12:44
○ 2026-03-19 08:56:12
○ 2026-05-15 02:38:30

○A184.168.221.632017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 10:12:44
○ 2026-03-19 08:56:12
○ 2026-05-15 02:38:30

●A2600:1900:4001:96e:8000:1:e1f6:cd2c2026-03-19 → 2026-05-15 · 3 obs

○ 2017-08-10 10:12:44
● 2026-03-19 08:56:12
● 2026-05-15 02:38:30

●A34.41.139.1932026-03-19 → 2026-05-15 · 3 obs

○ 2017-08-10 10:12:44
● 2026-03-19 08:56:12
● 2026-05-15 02:38:30

○A50.63.202.402017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 10:12:44
○ 2026-03-19 08:56:12
○ 2026-05-15 02:38:30

○A50.63.202.482017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 10:12:44
○ 2026-03-19 08:56:12
○ 2026-05-15 02:38:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net, d.gtld-servers.net...	-
windowsystemupdate.com	ns2.hwrn.net, ns1.hwrn.net	-

✅ Authoritative Response

Server:34.32.207.228

NS records: ns2.hwrn.net, ns1.hwrn.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for windowsystemupdate.com (unsigned zone)

⏱️ Timing

Total: 538ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`34.41.139.193`
AAAA	1	`2600:1900:4001:96e:8000:1:e1f6:cd2c`
NS	2	`ns1.hwrn.net, ns2.hwrn.net`
MX	2	`mx1.csof.net (pri: 10), mx2.csof.net (pri: 10)`
TXT	1	`v=spf1 include:_incspfcheck.mailspike.ne`
SOA	1	`ns1.hwrn.net hostmaster.hwrn.net`

Analysis

Hierarchy

windowsystemupdate.com is a parent of api.windowsystemupdate.com.

IP Addresses

windowsystemupdate.com points to two IP numbers: 2600:1900:4001:96e:8000:1:e1f6:cd2c and 34.41.139.193.

Other host names such as jure.dedspac.ru, alist.vadilops.ru, robert-redford.npaym.com, thesehers.net and eliot.virosat.ru share IP numbers with windowsystemupdate.com.

Name Servers

windowsystemupdate.com is delegated to two name servers: ns1.hwrn.net and ns2.hwrn.net.

windowsystemupdate.com uses the same name server setup as other domains, including dnsdns3.passas.us, anigh.matsuro.ru, retax.virosat.ru, (0x6269746368)y.dedspac.ru and 59756.zhongyifg.com.

Host names with six IP numbers:

ns1.hwrn.net points to: 2600:1900:4000:cb7c:8000::, 2600:1900:4061:58e:8000::, 2600:1900:4081:2f2:8000::, 34.32.207.228, 34.46.191.171 and 35.187.247.195.

ns2.hwrn.net points to: 2600:1900:4000:cb7c:8000:4::, 2600:1900:4061:58e:8000:4::, 2600:1900:4081:2f2:8000:4::, 34.124.162.145, 34.136.0.93 and 34.147.11.210.

Mail Servers

windowsystemupdate.com is handled by two mail servers: mx1.csof.net and mx2.csof.net.

windowsystemupdate.com uses the same mail server setup as other domains, for instance jebus.virosat.ru, 108.90.mozcom.net, mail.132cdf.namedeladerttu.info, xplr-ts-t11-208-114-142-125.barrettxplore.com and 237.34.ua.nivyah.com.

Hostnames with a single IP

mx1.csof.net resolves to: 46.4.12.146.

mx2.csof.net resolves to: 46.4.10.173.

windowsystemupdate.com - robtex.com