`ko-sys.com`

DNSSEC	⚠️ Not signed
A	2001:4860:4802:32::15^{🇺🇸 Google2001:4860::/32}
		PTR	`any-in-2001-4860-4802-32--15.1e100.net`
A	2001:4860:4802:34::15^{🇺🇸 Google2001:4860::/32}
A	2001:4860:4802:36::15^{🇺🇸 Google2001:4860::/32}
A	2001:4860:4802:38::15^{🇺🇸 Google2001:4860::/32}
A	216.239.32.21^{🇺🇸 Google216.239.32.0/24}
A	216.239.34.21^{🇺🇸 Google216.239.34.0/24}
A	216.239.36.21^{🇺🇸 Google216.239.36.0/24}
A	216.239.38.21^{🇺🇸 Google216.239.38.0/24}
NS	`ns-cloud-d1.googledomains.com` ⭐
		A	2001:4860:4802:32::6d^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-d1.googledomains.com`
		A	216.239.32.109^{🇺🇸 Google216.239.32.0/24}
			PTR	`ns-cloud-d1.googledomains.com`
NS	`ns-cloud-d2.googledomains.com`
		A	2001:4860:4802:34::6d^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-d2.googledomains.com`
		A	216.239.34.109^{🇺🇸 Google216.239.34.0/24}
			PTR	`ns-cloud-d2.googledomains.com`
NS	`ns-cloud-d3.googledomains.com`
		A	2001:4860:4802:36::6d^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-d3.googledomains.com`
		A	216.239.36.109^{🇺🇸 Google216.239.36.0/24}
			PTR	`ns-cloud-d3.googledomains.com`
NS	`ns-cloud-d4.googledomains.com`
		A	2001:4860:4802:38::6d^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-d4.googledomains.com`
		A	216.239.38.109^{🇺🇸 Google216.239.38.0/24}
			PTR	`ns-cloud-d4.googledomains.com`
MX	`smtp.ko-sys.com` ⭐
		A	2a01:488:66:1000:57e6:1735:0:1^{🇩🇪 GODADDY2a01:488::/32 DE-HER-V6-INITIAL}
			PTR	`xanos.ko-sys.com`
		A	87.230.23.53^{🇫🇷 GD-EMEA-DC-SXB187.230.0.0/19}
			PTR	`xanos.ko-sys.com`
TXT	`have-i-been-pwned-verification=591634037d3f67100c70f82a46cb3b7c`
TXT	`google-site-verification=Aex707OtdE-Y_UnJbb6JRN-7htdHTObNSvH5XD0lyF0`
TXT	`v=spf1 ip4:87.230.23.53 ip6:2a01:488:66:1000:57e6:1735:0:1/128 -all`
SOA	`ns-cloud-d1.googledomains.com`cloud-dns-hostmaster@google.com serial=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=1774752172

Subdomains

smtp.ko-sys.com

xanos.ko-sys.com

Same first word

ko-sys.com

Similar names

so-sky.com

ok-sys.com

sky-os.com

DNS History

25 records (13 active, 12 former)

○NSbanix.ko-sys.com2015-09-02 → 2015-12-02 · 4 obs

● 2015-09-02 22:56:38
● 2015-12-02 09:30:10
○ 2016-01-28 11:59:08
○ 2026-03-29 02:44:58

●NSns-cloud-d1.googledomains.com2026-02-16 → 2026-03-29 · 3 obs

○ 2020-03-07 17:31:50
● 2026-02-16 14:39:28
● 2026-03-29 02:44:58

●NSns-cloud-d2.googledomains.com2026-02-16 → 2026-03-29 · 3 obs

○ 2020-03-07 17:31:50
● 2026-02-16 14:39:28
● 2026-03-29 02:44:58

●NSns-cloud-d3.googledomains.com2026-02-16 → 2026-03-29 · 3 obs

○ 2020-03-07 17:31:50
● 2026-02-16 14:39:28
● 2026-03-29 02:44:58

●NSns-cloud-d4.googledomains.com2026-02-16 → 2026-03-29 · 3 obs

○ 2020-03-07 17:31:50
● 2026-02-16 14:39:28
● 2026-03-29 02:44:58

○NSns1.he.net2016-02-04 → 2020-03-07 · 5 obs

○ 2016-01-28 11:59:08
● 2016-02-04 05:07:10
● 2020-03-07 17:31:50
○ 2026-02-16 14:39:28
○ 2026-03-29 02:44:58

○NSns2.hans.hosteurope.de2015-09-02 → 2020-03-07 · 4 obs

● 2015-09-02 22:56:38
● 2020-03-07 17:31:50
○ 2026-02-16 14:39:28
○ 2026-03-29 02:44:58

○NSns2.he.net2015-09-02 → 2020-03-07 · 7 obs

● 2015-09-02 22:56:38
● 2015-12-02 09:30:10
○ 2016-01-28 11:59:08
○ 2017-01-07 09:59:48
● 2020-03-07 17:31:50
○ 2026-02-16 14:39:28
○ 2026-03-29 02:44:58

○NSns3.he.net2015-09-02 → 2020-03-07 · 7 obs

● 2015-09-02 22:56:38
● 2015-12-02 09:30:10
○ 2016-01-28 11:59:08
○ 2017-01-07 09:59:48
● 2020-03-07 17:31:50
○ 2026-02-16 14:39:28
○ 2026-03-29 02:44:58

○NSns4.he.net2015-09-02 → 2020-03-07 · 7 obs

● 2015-09-02 22:56:38
● 2015-12-02 09:30:10
○ 2016-01-28 11:59:08
○ 2017-01-07 09:59:48
● 2020-03-07 17:31:50
○ 2026-02-16 14:39:28
○ 2026-03-29 02:44:58

○NSns5.he.net2015-09-02 → 2020-03-07 · 7 obs

● 2015-09-02 22:56:38
● 2015-12-02 09:30:10
○ 2016-01-28 11:59:08
○ 2017-01-07 09:59:48
● 2020-03-07 17:31:50
○ 2026-02-16 14:39:28
○ 2026-03-29 02:44:58

○NSxanos.ko-sys.com2016-01-28 → 2020-03-07 · 5 obs

○ 2015-12-02 09:30:10
● 2016-01-28 11:59:08
● 2020-03-07 17:31:50
○ 2026-02-16 14:39:28
○ 2026-03-29 02:44:58

●MXsmtp.ko-sys.com2015-09-02 → 2026-03-29 · 2 obs

● 2015-09-02 22:56:38
● 2026-03-29 02:44:58

●A2001:4860:4802:32::152026-02-16 → 2026-03-29 · 3 obs

○ 2020-03-07 17:31:50
● 2026-02-16 14:39:28
● 2026-03-29 02:44:58

●A2001:4860:4802:34::152026-02-16 → 2026-03-29 · 3 obs

○ 2020-03-07 17:31:50
● 2026-02-16 14:39:28
● 2026-03-29 02:44:58

●A2001:4860:4802:36::152026-02-16 → 2026-03-29 · 3 obs

○ 2020-03-07 17:31:50
● 2026-02-16 14:39:28
● 2026-03-29 02:44:58

●A2001:4860:4802:38::152026-02-16 → 2026-03-29 · 3 obs

○ 2020-03-07 17:31:50
● 2026-02-16 14:39:28
● 2026-03-29 02:44:58

●A216.239.32.212026-02-16 → 2026-03-29 · 3 obs

○ 2020-03-07 17:31:50
● 2026-02-16 14:39:28
● 2026-03-29 02:44:58

●A216.239.34.212026-02-16 → 2026-03-29 · 3 obs

○ 2020-03-07 17:31:50
● 2026-02-16 14:39:28
● 2026-03-29 02:44:58

●A216.239.36.212026-02-16 → 2026-03-29 · 3 obs

○ 2020-03-07 17:31:50
● 2026-02-16 14:39:28
● 2026-03-29 02:44:58

●A216.239.38.212026-02-16 → 2026-03-29 · 3 obs

○ 2020-03-07 17:31:50
● 2026-02-16 14:39:28
● 2026-03-29 02:44:58

○A2a01:488:66:1000:53a9:2cdb:0:12015-09-02 → 2015-12-02 · 4 obs

● 2015-09-02 22:56:38
● 2015-12-02 09:30:10
○ 2016-01-28 11:59:08
○ 2026-03-29 02:44:58

○A2a01:488:66:1000:57e6:1735:0:12016-01-28 → 2020-03-07 · 5 obs

○ 2015-12-02 09:30:10
● 2016-01-28 11:59:08
● 2020-03-07 17:31:50
○ 2026-02-16 14:39:28
○ 2026-03-29 02:44:58

○A83.169.44.2192015-09-02 → 2015-12-02 · 4 obs

● 2015-09-02 22:56:38
● 2015-12-02 09:30:10
○ 2016-01-28 11:59:08
○ 2026-03-29 02:44:58

○A87.230.23.532016-01-28 → 2020-03-07 · 5 obs

○ 2015-12-02 09:30:10
● 2016-01-28 11:59:08
● 2020-03-07 17:31:50
○ 2026-02-16 14:39:28
○ 2026-03-29 02:44:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, j.gtld-servers.net, b.gtld-servers.net, d.gtld-servers.net...	-
ko-sys.com	ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com, ns-cloud-d4.googledomains.com	8 records

✅ Authoritative Response

Server:216.239.36.109

NS records: ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com, ns-cloud-d4.googledomains.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 335ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`216.239.32.21, 216.239.36.21...`
AAAA	4	`2001:4860:4802:38::15, 2001:4860:4802:34::15...`
NS	4	`ns-cloud-d1.googledomains.com, ns-cloud-d3.googledomains.com...`
MX	1	`smtp.ko-sys.com (pri: 10)`
TXT	3	`have-i-been-pwned-verification=591634037, google-site-verification=Aex707OtdE-Y_Un...`
SOA	1	`ns-cloud-d1.googledomains.com cloud-dns-`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns-cloud-d1.googledomains.com, ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com...)

Analysis

Hierarchy

ko-sys.com is the parent of smtp.ko-sys.com and xanos.ko-sys.com.

IP Addresses

Eight IP numbers are pointed to by ko-sys.com: 2001:4860:4802:32::15, 2001:4860:4802:34::15, 2001:4860:4802:36::15, 2001:4860:4802:38::15, 216.239.32.21, 216.239.34.21, 216.239.36.21 and 216.239.38.21.

other host names include northridgeworks.com, soullami.com, oics.org, laguinguettebio.com and vemimo.com; they share IP numbers with ko-sys.com.

Name Servers

ko-sys.com delegates to four name servers: ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com and ns-cloud-d4.googledomains.com.

ko-sys.com at least partially shares name servers with other domains, for instance cementconference.org, salonrenodeco.com, nti.co.in, cloudique.com and pandithospital.org.

Host names with two IP numbers: ns-cloud-d1.googledomains.com points to 2001:4860:4802:32::6d and 216.239.32.109; ns-cloud-d2.googledomains.com points to 2001:4860:4802:34::6d and 216.239.34.109; ns-cloud-d3.googledomains.com points to 2001:4860:4802:36::6d and 216.239.36.109; ns-cloud-d4.googledomains.com points to 2001:4860:4802:38::6d and 216.239.38.109.

Mail Servers

ko-sys.com is handled by a single mail server, smtp.ko-sys.com.

The mail server setup for ko-sys.com is the same as for other domains, such as simfed.org.

smtp.ko-sys.com resolves to two IPs: 2a01:488:66:1000:57e6:1735:0:1 and 87.230.23.53.

ko-sys.com - robtex.com

ko-sys.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`ko-sys.com`

`com`