`yusaka.jp`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:bf^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::ac43:8037^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.0.191^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.128.55^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`derek.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b9a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`derek.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c19a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`derek.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:219a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`derek.ns.cloudflare.com`
		A	108.162.193.154^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`derek.ns.cloudflare.com`
		A	172.64.33.154^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`derek.ns.cloudflare.com`
		A	173.245.59.154^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`derek.ns.cloudflare.com`
NS	`jule.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aaf^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jule.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0af^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jule.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20af^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jule.ns.cloudflare.com`
		A	108.162.192.175^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jule.ns.cloudflare.com`
		A	172.64.32.175^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jule.ns.cloudflare.com`
		A	173.245.58.175^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jule.ns.cloudflare.com`
MX	`mx2.reserve-system.com` ⭐
		A	153.126.148.112^{🇯🇵 SAKURA-A153.126.128.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan}
			PTR	`ik1-310-15108.vs.sakura.ne.jp`
TXT	`v=spf1 +ip4:49.212.94.87/32 include:_spf_atlink.reserve-system.com include:_s...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.0.191, 172.67.128.55
		IPv6 hints	2606:4700:3030::6815:bf, 2606:4700:3032::ac43:8037
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=246, name=cloudflare-ech.com
SOA	`derek.ns.cloudflare.com`dns@cloudflare.com serial=2410024490

`jp`

	DNSSEC	🔒 Signed (DS record present)
	NS	`z.dns.jp` ⭐
	NS	`a.dns.jp`
	NS	`b.dns.jp`
	NS	`c.dns.jp`
	NS	`d.dns.jp`
	NS	`e.dns.jp`
	NS	`f.dns.jp`
	NS	`g.dns.jp`
	NS	`h.dns.jp`
	SOA	`z.dns.jp`root@dns.jp serial=1785154503

WOT: SAFE (61/100)

Subdomains

ns.yusaka.jp

sv.yusaka.jp

ns2.yusaka.jp

Same first word

yusaka.jp

yusaka.com.hk

Similar names

sakuya.kr

sakuya.biz

asyuka.com

kayasu.com

yukasa.com

yakusa.de

sayuka.com

yakusa.biz

yakusa.id

kayaus.com

auskay.com

sakuya.jp

kasuya.jp

aykusa.com

suakay.com

sakuya.com

asyaku.id

kusaya.com

kayusa.net

yasuka.info

kausay.com.mx

ayuska.com

sakuya.x0.com

sakuya.net

yakusa.net

kasuya.name

yasuka.org

kasuya.com

sukaya.jp

sakuya.pl

kasuya.net

yasaku.com

sakuya.org

sakuya.love

yasuka.ru

kausay.se

kasayu.com

kuyasa.org.za

asakyu.com

sakuya.tv

yasuka.in

saukya.com

auskay.com.au

kasuya.info

auskay.cn

yasuka.com

DNS History

20 records (7 active, 13 former)

●NSderek.ns.cloudflare.com2020-03-17 → 2026-07-27 · 3 obs

○ 2017-03-28 17:37:46
● 2020-03-17 19:55:08
● 2026-07-27 12:58:48

●NSjule.ns.cloudflare.com2020-03-17 → 2026-07-27 · 3 obs

○ 2017-03-28 17:37:46
● 2020-03-17 19:55:08
● 2026-07-27 12:58:48

○NSns.yusaka.jp2015-08-03 → 2017-03-28 · 4 obs

● 2015-08-03 05:14:28
● 2017-03-28 17:37:46
○ 2020-03-17 19:55:08
○ 2026-07-27 12:58:48

○NSns2.yusaka.jp2015-08-03 → 2017-03-28 · 4 obs

● 2015-08-03 05:14:28
● 2017-03-28 17:37:46
○ 2020-03-17 19:55:08
○ 2026-07-27 12:58:48

○NSsv.yusaka.jp2015-08-03 → 2017-03-28 · 4 obs

● 2015-08-03 05:14:28
● 2017-03-28 17:37:46
○ 2020-03-17 19:55:08
○ 2026-07-27 12:58:48

○MXmail.yusaka.jp2015-08-03 → 2017-03-28 · 4 obs

● 2015-08-03 05:14:28
● 2017-03-28 17:37:46
○ 2020-03-17 19:55:08
○ 2026-07-27 12:58:48

●MXmx2.reserve-system.com2020-03-17 → 2026-07-27 · 3 obs

○ 2017-03-28 17:37:46
● 2020-03-17 19:55:08
● 2026-07-27 12:58:48

○MXns.yusaka.jp2015-08-03 → 2017-03-28 · 4 obs

● 2015-08-03 05:14:28
● 2017-03-28 17:37:46
○ 2020-03-17 19:55:08
○ 2026-07-27 12:58:48

○MXold-mail.yusaka.jp2015-08-03 → 2017-03-28 · 4 obs

● 2015-08-03 05:14:28
● 2017-03-28 17:37:46
○ 2020-03-17 19:55:08
○ 2026-07-27 12:58:48

●A104.21.0.1912026-04-13 → 2026-07-27 · 3 obs

○ 2020-03-17 19:55:08
● 2026-04-13 20:12:00
● 2026-07-27 12:58:48

○A104.26.6.2302020-03-17 → 2020-03-17 · 4 obs

○ 2017-03-28 17:37:46
● 2020-03-17 19:55:08
○ 2026-04-13 20:12:00
○ 2026-07-27 12:58:48

○A104.26.7.2302020-03-17 → 2020-03-17 · 4 obs

○ 2017-03-28 17:37:46
● 2020-03-17 19:55:08
○ 2026-04-13 20:12:00
○ 2026-07-27 12:58:48

○A133.242.116.2062015-08-03 → 2017-03-28 · 4 obs

● 2015-08-03 05:14:28
● 2017-03-28 17:37:46
○ 2020-03-17 19:55:08
○ 2026-07-27 12:58:48

●A172.67.128.552026-04-13 → 2026-07-27 · 3 obs

○ 2020-03-17 19:55:08
● 2026-04-13 20:12:00
● 2026-07-27 12:58:48

○A2606:4700:20::681a:6e62020-03-17 → 2020-03-17 · 4 obs

○ 2017-03-28 17:37:46
● 2020-03-17 19:55:08
○ 2026-04-13 20:12:00
○ 2026-07-27 12:58:48

○A2606:4700:20::681a:7e62020-03-17 → 2020-03-17 · 4 obs

○ 2017-03-28 17:37:46
● 2020-03-17 19:55:08
○ 2026-04-13 20:12:00
○ 2026-07-27 12:58:48

●A2606:4700:3030::6815:bf2026-06-23 → 2026-07-27 · 3 obs

○ 2026-06-14 13:28:18
● 2026-06-23 15:10:50
● 2026-07-27 12:58:48

●A2606:4700:3032::ac43:80372026-06-23 → 2026-07-27 · 3 obs

○ 2026-06-14 13:28:18
● 2026-06-23 15:10:50
● 2026-07-27 12:58:48

○A2606:4700:3035::ac43:80372026-04-13 → 2026-06-14 · 5 obs

○ 2020-03-17 19:55:08
● 2026-04-13 20:12:00
● 2026-06-14 13:28:18
○ 2026-06-23 15:10:50
○ 2026-07-27 12:58:48

○A2606:4700:3037::6815:bf2026-04-13 → 2026-06-14 · 5 obs

○ 2020-03-17 19:55:08
● 2026-04-13 20:12:00
● 2026-06-14 13:28:18
○ 2026-06-23 15:10:50
○ 2026-07-27 12:58:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
yusaka.jp	jule.ns.cloudflare.com, derek.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.154

NS records: jule.ns.cloudflare.com, derek.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for yusaka.jp (unsigned zone)

⏱️ Timing

Total: 755ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.128.55, 104.21.0.191`
AAAA	2	`2606:4700:3032::ac43:8037, 2606:4700:3030::6815:bf`
NS	2	`derek.ns.cloudflare.com, jule.ns.cloudflare.com`
MX	1	`mx2.reserve-system.com (pri: 10)`
TXT	1	`v=spf1 +ip4:49.212.94.87/32 include:_spf`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`derek.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

yusaka.jp is a parent domain, with ns.yusaka.jp, sv.yusaka.jp and ns2.yusaka.jp beneath it.

IP Addresses

yusaka.jp resolves to four IP addresses: 104.21.0.191, 172.67.128.55, 2606:4700:3030::6815:bf and 2606:4700:3032::ac43:8037.

www.workway.dev, dplab.es, atlgeek.com and two other host names share IP numbers with yusaka.jp.

Name Servers

yusaka.jp is delegated to two name servers: derek.ns.cloudflare.com and jule.ns.cloudflare.com.

yusaka.jp uses the same name servers as several other domains — among them kanagawa-ryokan.or.jp, seifu-en.jp, estonia.com.es and two more.

yusaka.jp has at least partial name server overlap with other domains, such as sternenwoche.ch, icrc.co.uk, merchoid.com and two others.

It is common to find these name servers paired with the name servers bradley.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

derek.ns.cloudflare.com resolves to 108.162.193.154, 172.64.33.154, 173.245.59.154 and 3 other IP addresses.

jule.ns.cloudflare.com resolves to 108.162.192.175, 172.64.32.175, 173.245.58.175 and 3 other IP addresses.

Mail Servers

Mail for yusaka.jp is handled by a single mail server, mx2.reserve-system.com.

yusaka.jp uses an identical mail server configuration to several other domains — among them kanagawa-ryokan.or.jp, seifu-en.jp, innpark.jp and two more.

mx2.reserve-system.com resolves to a single IP number: 153.126.148.112.

yusaka.jp - robtex.com

yusaka.jp

jp

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`yusaka.jp`

`jp`