`koukyuu.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:b963^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:541f^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.84.31^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.185.99^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`adaline.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2631^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adaline.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c231^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`adaline.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2231^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`adaline.ns.cloudflare.com`
		A	108.162.194.49^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adaline.ns.cloudflare.com`
		A	162.159.38.49^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adaline.ns.cloudflare.com`
		A	172.64.34.49^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adaline.ns.cloudflare.com`
NS	`ivan.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b78^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ivan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c178^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ivan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2178^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ivan.ns.cloudflare.com`
		A	108.162.193.120^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ivan.ns.cloudflare.com`
		A	172.64.33.120^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ivan.ns.cloudflare.com`
		A	173.245.59.120^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ivan.ns.cloudflare.com`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c08::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f26.1e100.net`
		A	2607:f8b0:4004:c09::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bh-in-f26.1e100.net`
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	2607:f8b0:4004:c23::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f27.1e100.net`
		A	142.250.31.27^{🇺🇸 Google142.250.31.0/24}
			PTR	`bj-in-f27.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.net`
		A	172.253.122.27^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f27.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	192.178.155.27^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f27.1e100.net`
TXT	`google-site-verification=R0tGeAd_jkeO4iIGoQsstW_Jxf81PNf1pAinHDzGciQ`
TXT	`google-site-verification=oAFZqAEwfZRjjm_mAWWBrE2Lt1WhYHW6XsZZWJ8CwMY`
TXT	`v=spf1 include:_spf.mail.hostinger.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.84.31, 172.67.185.99
		IPv6 hints	2606:4700:3030::ac43:b963, 2606:4700:3034::6815:541f
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=85, name=cloudflare-ech.com
SOA	`adaline.ns.cloudflare.com`dns@cloudflare.com serial=2409680551

`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=1785793642

Same first word

koukyuu.com

koukyuu.net

Similar names

kukuyou.com

yuukoku.net

yuukoku.com

kyuukou.or.jp

DNS History

30 records (7 active, 23 former)

●NSadaline.ns.cloudflare.com2026-07-31 → 2026-08-03 · 3 obs

○ 2026-05-31 07:32:32
● 2026-07-31 12:26:38
● 2026-08-03 21:55:06

●NSivan.ns.cloudflare.com2026-07-31 → 2026-08-03 · 3 obs

○ 2026-05-31 07:32:32
● 2026-07-31 12:26:38
● 2026-08-03 21:55:06

○NSns1.dns-parking.com2026-05-31 → 2026-05-31 · 4 obs

○ 2017-06-14 12:15:22
● 2026-05-31 07:32:32
○ 2026-07-31 12:26:38
○ 2026-08-03 21:55:06

○NSns1.namebrightdns.com2015-10-25 → 2017-06-14 · 8 obs

○ 2015-05-26 14:42:22
● 2015-10-25 18:32:28
○ 2016-01-20 09:35:26
● 2016-04-19 12:18:14
○ 2016-12-02 12:05:28
● 2017-06-14 12:15:22
○ 2026-05-31 07:32:32
○ 2026-08-03 21:55:06

○NSns2.dns-parking.com2026-05-31 → 2026-05-31 · 4 obs

○ 2017-06-14 12:15:22
● 2026-05-31 07:32:32
○ 2026-07-31 12:26:38
○ 2026-08-03 21:55:06

○NSns2.namebrightdns.com2015-10-25 → 2017-06-14 · 8 obs

○ 2015-05-26 14:42:22
● 2015-10-25 18:32:28
○ 2016-01-20 09:35:26
● 2016-04-19 12:18:14
○ 2016-12-02 12:05:28
● 2017-06-14 12:15:22
○ 2026-05-31 07:32:32
○ 2026-08-03 21:55:06

○NSnsg1.namebrightdns.com2015-05-26 → 2016-01-20 · 5 obs

● 2015-05-26 14:42:22
○ 2015-10-25 18:32:28
● 2016-01-20 09:35:26
○ 2016-04-19 12:18:14
○ 2026-08-03 21:55:06

○NSnsg2.namebrightdns.com2015-05-26 → 2016-01-20 · 5 obs

● 2015-05-26 14:42:22
○ 2015-10-25 18:32:28
● 2016-01-20 09:35:26
○ 2016-04-19 12:18:14
○ 2026-08-03 21:55:06

○NSnst1.namebrightdns.com2016-12-02 → 2016-12-02 · 4 obs

○ 2016-04-19 12:18:14
● 2016-12-02 12:05:28
○ 2017-06-14 12:15:22
○ 2026-08-03 21:55:06

○NSnst2.namebrightdns.com2016-12-02 → 2016-12-02 · 4 obs

○ 2016-04-19 12:18:14
● 2016-12-02 12:05:28
○ 2017-06-14 12:15:22
○ 2026-08-03 21:55:06

○MXanmail.namebrightmail.com2015-05-26 → 2015-05-26 · 3 obs

● 2015-05-26 14:42:22
○ 2015-10-25 18:32:28
○ 2026-08-03 21:55:06

●MXsmtp.google.com2026-05-31 → 2026-08-03 · 3 obs

○ 2015-10-25 18:32:28
● 2026-05-31 07:32:32
● 2026-08-03 21:55:06

●A104.21.84.312026-07-31 → 2026-08-03 · 3 obs

○ 2026-05-31 07:32:32
● 2026-07-31 12:26:38
● 2026-08-03 21:55:06

●A172.67.185.992026-07-31 → 2026-08-03 · 3 obs

○ 2026-05-31 07:32:32
● 2026-07-31 12:26:38
● 2026-08-03 21:55:06

●A2606:4700:3030::ac43:b9632026-07-31 → 2026-08-03 · 3 obs

○ 2026-05-31 07:32:32
● 2026-07-31 12:26:38
● 2026-08-03 21:55:06

●A2606:4700:3034::6815:541f2026-07-31 → 2026-08-03 · 3 obs

○ 2026-05-31 07:32:32
● 2026-07-31 12:26:38
● 2026-08-03 21:55:06

○A2a02:4780:2b:1783:0:d07:2aee:e2026-05-31 → 2026-05-31 · 4 obs

○ 2017-06-14 12:15:22
● 2026-05-31 07:32:32
○ 2026-07-31 12:26:38
○ 2026-08-03 21:55:06

○A52.200.243.1232016-04-19 → 2016-04-19 · 4 obs

○ 2016-01-20 09:35:26
● 2016-04-19 12:18:14
○ 2016-12-02 12:05:28
○ 2026-08-03 21:55:06

○A54.152.144.2432016-04-19 → 2016-04-19 · 4 obs

○ 2016-01-20 09:35:26
● 2016-04-19 12:18:14
○ 2016-12-02 12:05:28
○ 2026-08-03 21:55:06

○A54.174.31.2542015-10-25 → 2015-10-25 · 4 obs

○ 2015-05-26 14:42:22
● 2015-10-25 18:32:28
○ 2016-01-20 09:35:26
○ 2026-08-03 21:55:06

○A54.208.74.2152015-10-25 → 2015-10-25 · 4 obs

○ 2015-05-26 14:42:22
● 2015-10-25 18:32:28
○ 2016-01-20 09:35:26
○ 2026-08-03 21:55:06

○A54.209.90.812016-01-20 → 2016-01-20 · 4 obs

○ 2015-10-25 18:32:28
● 2016-01-20 09:35:26
○ 2016-04-19 12:18:14
○ 2026-08-03 21:55:06

○A54.236.84.1112015-05-26 → 2015-05-26 · 3 obs

● 2015-05-26 14:42:22
○ 2017-06-14 12:15:22
○ 2026-08-03 21:55:06

○A54.84.80.1732016-12-02 → 2016-12-02 · 4 obs

○ 2016-04-19 12:18:14
● 2016-12-02 12:05:28
○ 2017-06-14 12:15:22
○ 2026-08-03 21:55:06

○A54.85.146.1862015-05-26 → 2015-05-26 · 3 obs

● 2015-05-26 14:42:22
○ 2017-06-14 12:15:22
○ 2026-08-03 21:55:06

○A54.85.54.292016-01-20 → 2016-01-20 · 4 obs

○ 2015-10-25 18:32:28
● 2016-01-20 09:35:26
○ 2016-04-19 12:18:14
○ 2026-08-03 21:55:06

○A54.88.107.1402016-12-02 → 2016-12-02 · 4 obs

○ 2016-04-19 12:18:14
● 2016-12-02 12:05:28
○ 2017-06-14 12:15:22
○ 2026-08-03 21:55:06

○A72.62.172.1242026-05-31 → 2026-05-31 · 4 obs

○ 2017-06-14 12:15:22
● 2026-05-31 07:32:32
○ 2026-07-31 12:26:38
○ 2026-08-03 21:55:06

○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-05-26 → 2016-04-19 · 4 obs

● 2015-05-26 14:42:22
● 2016-04-19 12:18:14
○ 2016-12-02 12:05:28
○ 2026-08-03 21:55:06

○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2016-12-02 → 2017-06-14 · 5 obs

○ 2016-04-19 12:18:14
● 2016-12-02 12:05:28
● 2017-06-14 12:15:22
○ 2026-05-31 07:32:32
○ 2026-08-03 21:55:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net, k.gtld-servers.net...	-
koukyuu.com	ivan.ns.cloudflare.com, adaline.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.49

NS records: ivan.ns.cloudflare.com, adaline.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for koukyuu.com (unsigned zone)

⏱️ Timing

Total: 202ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.84.31, 172.67.185.99`
AAAA	2	`2606:4700:3030::ac43:b963, 2606:4700:3034::6815:541f`
NS	2	`adaline.ns.cloudflare.com, ivan.ns.cloudflare.com`
MX	1	`SMTP.GOOGLE.com (pri: 1)`
TXT	3	`google-site-verification=R0tGeAd_jkeO4iI, google-site-verification=oAFZqAEwfZRjjm_...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`adaline.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ivan.ns.cloudflare.com, ivan.ns.cloudflare.com, ivan.ns.cloudflare.com...)

Analysis

IP Addresses

koukyuu.com has four IP addresses: 104.21.84.31, 172.67.185.99, 2606:4700:3030::ac43:b963 and 2606:4700:3034::6815:541f.

Among the host names that share IP numbers with koukyuu.com are thepiloteer.com, krakow-trend.eu, www.smarterhaushalt.at and two others.

Name Servers

The NS records for koukyuu.com delegate to adaline.ns.cloudflare.com and ivan.ns.cloudflare.com.

koukyuu.com has the same name server delegation as a number of other domains, such as industritag.com, cfglab.com, giannioti-vasiliki.gr and two more.

koukyuu.com partially shares its NS delegation with several other domains, including healthyguttersnc.com, unidify.com, mytfly.com and two others.

These name servers regularly co-occur with the name servers erin.ns.cloudflare.com, logan.ns.cloudflare.com and greg.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

adaline.ns.cloudflare.com maps to 108.162.194.49, 162.159.38.49, 172.64.34.49 and 3 additional IP addresses.

ivan.ns.cloudflare.com maps to 108.162.193.120, 172.64.33.120, 173.245.59.120 and 3 additional IP addresses.

Mail Servers

koukyuu.com routes its mail through a single mail server, smtp.google.com.

koukyuu.com has the same mail server arrangement as a number of other domains, for example takeactionminnesota.org, cloi.it, nucrew.com and two more.

koukyuu.com shares at least some of its mail servers with other domains — for example kimdien.vn, greeceinvests.com, heartphoto.com.tw and two more.

These mail servers tend to be used in conjunction with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two additional mail servers.

smtp.google.com directs to 9 IP numbers, including 142.250.31.27, 172.253.63.27 and 172.253.122.27, along with 6 other.

koukyuu.com - robtex.com

koukyuu.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`koukyuu.com`

`com`