`shibugaku.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:a30a^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:2a96^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.42.150^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.163.10^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`lisa.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a83^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lisa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c083^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lisa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2083^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lisa.ns.cloudflare.com`
		A	108.162.192.131^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lisa.ns.cloudflare.com`
		A	172.64.32.131^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lisa.ns.cloudflare.com`
		A	173.245.58.131^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lisa.ns.cloudflare.com`
NS	`stan.ns.cloudflare.com`
		A	2606:4700:58::adf5:3beb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`stan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1eb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`stan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21eb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`stan.ns.cloudflare.com`
		A	108.162.193.235^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`stan.ns.cloudflare.com`
		A	172.64.33.235^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`stan.ns.cloudflare.com`
		A	173.245.59.235^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`stan.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.42.150, 172.67.163.10
		IPv6 hints	2606:4700:3031::ac43:a30a, 2606:4700:3036::6815:2a96
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=179, name=cloudflare-ech.com
SOA	`lisa.ns.cloudflare.com`dns@cloudflare.com serial=2403791193

`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=1778856146

WOT: SAFE (61/100)

Previously MX for

shibugaku.com

Same first word

shibugaku.com

Similar names

shigakubu.com

DNS History

23 records (6 active, 17 former)

●NSlisa.ns.cloudflare.com2026-04-04 → 2026-05-15 · 3 obs

○ 2020-02-22 21:22:34
● 2026-04-04 23:58:30
● 2026-05-15 14:43:30

○NSns1.mixhost.jp2020-02-22 → 2020-02-22 · 4 obs

○ 2017-01-29 13:37:40
● 2020-02-22 21:22:34
○ 2026-04-04 23:58:30
○ 2026-05-15 14:43:30

○NSns2.cpi.ad.jp2007-10-28 → 2017-01-29 · 4 obs

● 2007-10-28 18:11:10
● 2017-01-29 13:37:40
○ 2020-02-22 21:22:34
○ 2026-05-15 14:43:30

○NSns2.mixhost.jp2020-02-22 → 2020-02-22 · 4 obs

○ 2017-01-29 13:37:40
● 2020-02-22 21:22:34
○ 2026-04-04 23:58:30
○ 2026-05-15 14:43:30

○NSns3.cpi.ad.jp2007-10-28 → 2017-01-29 · 4 obs

● 2007-10-28 18:11:10
● 2017-01-29 13:37:40
○ 2020-02-22 21:22:34
○ 2026-05-15 14:43:30

●NSstan.ns.cloudflare.com2026-04-04 → 2026-05-15 · 3 obs

○ 2020-02-22 21:22:34
● 2026-04-04 23:58:30
● 2026-05-15 14:43:30

○MXgt401.secure.ne.jp2007-10-28 → 2007-10-28 · 3 obs

● 2007-10-28 18:11:10
○ 2015-05-03 04:15:06
○ 2026-05-15 14:43:30

○MXshibugaku.com2020-02-22 → 2020-02-22 · 4 obs

○ 2017-01-29 13:37:40
● 2020-02-22 21:22:34
○ 2026-04-04 23:58:30
○ 2026-05-15 14:43:30

○MXvlmx01.secure.ne.jp2007-10-28 → 2007-10-28 · 3 obs

● 2007-10-28 18:11:10
○ 2015-05-03 04:15:06
○ 2026-05-15 14:43:30

○MXvlmx02.secure.ne.jp2007-10-28 → 2007-10-28 · 3 obs

● 2007-10-28 18:11:10
○ 2015-05-03 04:15:06
○ 2026-05-15 14:43:30

○MXvlmx20.secure.ne.jp2015-05-03 → 2017-01-29 · 5 obs

○ 2007-10-28 18:11:10
● 2015-05-03 04:15:06
● 2017-01-29 13:37:40
○ 2020-02-22 21:22:34
○ 2026-05-15 14:43:30

○MXvlmx21.secure.ne.jp2015-05-03 → 2017-01-29 · 5 obs

○ 2007-10-28 18:11:10
● 2015-05-03 04:15:06
● 2017-01-29 13:37:40
○ 2020-02-22 21:22:34
○ 2026-05-15 14:43:30

○MXvlmx22.secure.ne.jp2015-05-03 → 2017-01-29 · 5 obs

○ 2007-10-28 18:11:10
● 2015-05-03 04:15:06
● 2017-01-29 13:37:40
○ 2020-02-22 21:22:34
○ 2026-05-15 14:43:30

●A104.21.42.1502026-04-04 → 2026-05-15 · 6 obs

○ 2020-02-22 21:22:34
● 2026-04-04 23:58:30
● 2026-05-01 17:38:16
○ 2026-05-07 23:16:22
● 2026-05-15 14:43:28
● 2026-05-15 14:43:30

○A150.95.55.1652020-02-22 → 2020-02-22 · 4 obs

○ 2017-01-29 13:37:40
● 2020-02-22 21:22:34
○ 2026-04-04 23:58:30
○ 2026-05-15 14:43:30

●A172.67.163.102026-04-04 → 2026-05-15 · 6 obs

○ 2020-02-22 21:22:34
● 2026-04-04 23:58:30
● 2026-05-01 17:38:16
○ 2026-05-07 23:16:22
● 2026-05-15 14:43:28
● 2026-05-15 14:43:30

○A188.114.96.02026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-01 17:38:16
● 2026-05-07 23:16:22
○ 2026-05-15 14:43:28
○ 2026-05-15 14:43:30

○A188.114.97.02026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-01 17:38:16
● 2026-05-07 23:16:22
○ 2026-05-15 14:43:28
○ 2026-05-15 14:43:30

○A202.133.119.922007-10-28 → 2017-01-29 · 4 obs

● 2007-10-28 18:11:10
● 2017-01-29 13:37:40
○ 2020-02-22 21:22:34
○ 2026-05-15 14:43:30

●A2606:4700:3031::ac43:a30a2026-04-04 → 2026-05-15 · 6 obs

○ 2020-02-22 21:22:34
● 2026-04-04 23:58:30
● 2026-05-01 17:38:16
○ 2026-05-07 23:16:22
● 2026-05-15 14:43:28
● 2026-05-15 14:43:30

●A2606:4700:3036::6815:2a962026-04-04 → 2026-05-15 · 6 obs

○ 2020-02-22 21:22:34
● 2026-04-04 23:58:30
● 2026-05-01 17:38:16
○ 2026-05-07 23:16:22
● 2026-05-15 14:43:28
● 2026-05-15 14:43:30

○A2a06:98c1:3120::2026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-01 17:38:16
● 2026-05-07 23:16:22
○ 2026-05-15 14:43:28
○ 2026-05-15 14:43:30

○A2a06:98c1:3121::2026-05-07 → 2026-05-07 · 4 obs

○ 2026-05-01 17:38:16
● 2026-05-07 23:16:22
○ 2026-05-15 14:43:28
○ 2026-05-15 14:43:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
shibugaku.com	lisa.ns.cloudflare.com, stan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.235

NS records: lisa.ns.cloudflare.com, stan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for shibugaku.com (unsigned zone)

⏱️ Timing

Total: 176ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.163.10, 104.21.42.150`
AAAA	2	`2606:4700:3031::ac43:a30a, 2606:4700:3036::6815:2a96`
NS	2	`lisa.ns.cloudflare.com, stan.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`lisa.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

shibugaku.com points to four IP numbers: 2606:4700:3031::ac43:a30a, 2606:4700:3036::6815:2a96, 104.21.42.150 and 172.67.163.10.

Other host names, for instance bsuperiorsystem.com, maxmetaworldnow.com, www.hkjcpmh.org.hk, www.jeunesseglobalbuild.com and mediabowlm.com share IP numbers with shibugaku.com.

Name Servers

Delegation for shibugaku.com rests with two name servers, lisa.ns.cloudflare.com and stan.ns.cloudflare.com.

shibugaku.com shares the same name server setup as other domains, including originalpappaspizza.com, colhariharan.org, osanlabo.com, uxder.com and zacharyspizzaria.com.

shibugaku.com at least partially shares name servers with other domains, for instance fuzavo.com, videodroid.org, 4jitonpr.com, xn--7ov.net and mystageplan.com.

these name servers are commonly used with ken.ns.cloudflare.com, sneh.ns.cloudflare.com and zara.ns.cloudflare.com.

Host names with six IP numbers: lisa.ns.cloudflare.com points to: 2606:4700:50::adf5:3a83, 2803:f800:50::6ca2:c083, 2a06:98c1:50::ac40:2083, 108.162.192.131, 172.64.32.131 and 173.245.58.131. stan.ns.cloudflare.com points to: 2606:4700:58::adf5:3beb, 2803:f800:50::6ca2:c1eb, 2a06:98c1:50::ac40:21eb, 108.162.193.235, 172.64.33.235 and 173.245.59.235.

shibugaku.com - robtex.com

shibugaku.com

com

Previously MX for

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

`shibugaku.com`

`com`