`sinobrightschool.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::ac43:9ea0^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:e66^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.14.102^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.158.160^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`arnold.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b45^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arnold.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c145^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`arnold.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2145^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`arnold.ns.cloudflare.com`
		A	108.162.193.69^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arnold.ns.cloudflare.com`
		A	172.64.33.69^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arnold.ns.cloudflare.com`
		A	173.245.59.69^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arnold.ns.cloudflare.com`
NS	`imani.ns.cloudflare.com`
		A	2606:4700:50::a29f:263e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`imani.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c23e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`imani.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:223e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`imani.ns.cloudflare.com`
		A	108.162.194.62^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`imani.ns.cloudflare.com`
		A	162.159.38.62^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`imani.ns.cloudflare.com`
		A	172.64.34.62^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`imani.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.14.102, 172.67.158.160
		IPv6 hints	2606:4700:3036::ac43:9ea0, 2606:4700:3037::6815:e66
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=2, name=cloudflare-ech.com
SOA	`arnold.ns.cloudflare.com`dns@cloudflare.com serial=2401143514

`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=1776167022

Subdomains

mail.sinobrightschool.com

DNS History

13 records (6 active, 7 former)

●NSarnold.ns.cloudflare.com2026-04-14 → 2026-04-14 · 2 obs

○ 2017-03-31 16:12:52
● 2026-04-14 12:09:54

●NSimani.ns.cloudflare.com2026-04-14 → 2026-04-14 · 2 obs

○ 2017-03-31 16:12:52
● 2026-04-14 12:09:54

○NSjuming.dnsdun.com2017-03-31 → 2017-03-31 · 3 obs

○ 2016-07-21 22:59:44
● 2017-03-31 16:12:52
○ 2026-04-14 12:09:54

○NSjuming.dnsdun.net2017-03-31 → 2017-03-31 · 3 obs

○ 2016-07-21 22:59:44
● 2017-03-31 16:12:52
○ 2026-04-14 12:09:54

○NSns1.xrnet.cn2015-08-13 → 2016-03-15 · 4 obs

● 2015-08-13 11:13:42
● 2016-03-15 00:02:48
○ 2016-07-21 22:59:44
○ 2026-04-14 12:09:54

○NSns2.xrnet.cn2015-12-07 → 2016-03-15 · 5 obs

○ 2015-08-13 11:13:42
● 2015-12-07 19:07:06
● 2016-03-15 00:02:48
○ 2016-07-21 22:59:44
○ 2026-04-14 12:09:54

○MXmail.sinobrightschool.com2015-12-07 → 2016-03-15 · 4 obs

● 2015-12-07 19:07:06
● 2016-03-15 00:02:48
○ 2016-07-21 22:59:44
○ 2026-04-14 12:09:54

●A104.21.14.1022026-04-14 → 2026-04-14 · 2 obs

○ 2017-03-31 16:12:52
● 2026-04-14 12:09:54

○A108.187.211.1242017-03-31 → 2017-03-31 · 3 obs

○ 2016-07-21 22:59:44
● 2017-03-31 16:12:52
○ 2026-04-14 12:09:54

○A115.47.71.1502015-08-13 → 2016-03-15 · 4 obs

● 2015-08-13 11:13:42
● 2016-03-15 00:02:48
○ 2016-07-21 22:59:44
○ 2026-04-14 12:09:54

●A172.67.158.1602026-04-14 → 2026-04-14 · 2 obs

○ 2017-03-31 16:12:52
● 2026-04-14 12:09:54

●A2606:4700:3036::ac43:9ea02026-04-14 → 2026-04-14 · 2 obs

○ 2017-03-31 16:12:52
● 2026-04-14 12:09:54

●A2606:4700:3037::6815:e662026-04-14 → 2026-04-14 · 2 obs

○ 2017-03-31 16:12:52
● 2026-04-14 12:09:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, k.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net...	-
sinobrightschool.com	arnold.ns.cloudflare.com, imani.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.69

NS records: arnold.ns.cloudflare.com, imani.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sinobrightschool.com (unsigned zone)

⏱️ Timing

Total: 1722ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.158.160, 104.21.14.102`
AAAA	2	`2606:4700:3036::ac43:9ea0, 2606:4700:3037::6815:e66`
NS	2	`arnold.ns.cloudflare.com, imani.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`arnold.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

mail.sinobrightschool.com has sinobrightschool.com as its parent.

IP Addresses

sinobrightschool.com maps to four IP numbers: 2606:4700:3036::ac43:9ea0, 2606:4700:3037::6815:e66, 104.21.14.102 and 172.67.158.160.

Other host names, for instance dashleydriveby.com, www.ganbook.co.il, spinari.click, watermans.uk.com and tg7708.com share IP numbers with sinobrightschool.com.

Name Servers

Two name servers arnold.ns.cloudflare.com and imani.ns.cloudflare.com are delegated to sinobrightschool.com.

sinobrightschool.com uses the same name server configuration as other domains, such as 136635.com, chayuanma.com, sxdhjd.com, vcocv.com and yiqidiy.com.

sinobrightschool.com at least partially shares name servers with other domains such as chorki.com, mainstrip.com, heardcitizen.com, iase-jrn.ir and groupteens.com.

Host names with six IP numbers: Host name arnold.ns.cloudflare.com points to 2606:4700:58::adf5:3b45, 2803:f800:50::6ca2:c145, 2a06:98c1:50::ac40:2145, 108.162.193.69, 172.64.33.69 and 173.245.59.69; host name imani.ns.cloudflare.com points to 2606:4700:50::a29f:263e, 2803:f800:50::6ca2:c23e, 2a06:98c1:50::ac40:223e, 108.162.194.62, 162.159.38.62 and 172.64.34.62.

sinobrightschool.com - robtex.com