sleepbrain.com - dns.ninja

`sleepbrain.com`

DNSSEC	⚠️ Not signed
A	47.100.70.111^{🇨🇳 Alibaba-Cloud47.100.0.0/15}
NS	`dns11.hichina.com` ⭐
		A	2408:4009:501::19^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.42^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.52^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.202^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.212^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.42^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.52^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.112^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.122^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`dns12.hichina.com`
		A	2408:4009:501::20^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.41^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.51^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.201^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.211^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.41^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.51^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.111^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.121^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
MX	`mx1.feishu.cn` ⭐
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
MX	`mx2.feishu.cn`⁽⁵⁾
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
MX	`mx3.feishu.cn`⁽¹⁰⁾
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
TXT	`verification-code-site-App_feishu=gkimh9W1FnaKKh75nAQ7`
TXT	`v=spf1 +include:_netblocks.m.feishu.cn -all`
SOA	`dns11.hichina.com`hostmaster@hichina.com 2026-05-28 #9

`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=1782712270

Subdomains

web.sleepbrain.com

Same first word

sleepbrain.com

Similar names

pensalibre.com

nepebrasil.org

baselinerp.com

abelprisen.net

iberplanes.es

abelprisen.info

abelprisen.com

baselinepr.com

alpenbrise.de

abelprisen.no

brainsleep.com

sleipnerab.se

baerenpils.de

DNS History

11 records (6 active, 5 former)

○NSdns10.hichina.com2016-05-06 → 2017-01-15 · 4 obs

● 2016-05-06 04:54:18
● 2017-01-15 03:10:52
○ 2020-01-21 03:26:46
○ 2026-06-29 06:20:48

●NSdns11.hichina.com2026-03-21 → 2026-06-29 · 3 obs

○ 2020-01-21 03:26:46
● 2026-03-21 10:58:14
● 2026-06-29 06:20:48

●NSdns12.hichina.com2026-03-21 → 2026-06-29 · 3 obs

○ 2020-01-21 03:26:46
● 2026-03-21 10:58:14
● 2026-06-29 06:20:48

○NSdns9.hichina.com2016-05-06 → 2017-01-15 · 4 obs

● 2016-05-06 04:54:18
● 2017-01-15 03:10:52
○ 2020-01-21 03:26:46
○ 2026-06-29 06:20:48

○NSns1.namebrightdns.com2020-01-21 → 2020-01-21 · 4 obs

○ 2017-01-15 03:10:52
● 2020-01-21 03:26:46
○ 2026-03-21 10:58:14
○ 2026-06-29 06:20:48

○NSns2.namebrightdns.com2020-01-21 → 2020-01-21 · 4 obs

○ 2017-01-15 03:10:52
● 2020-01-21 03:26:46
○ 2026-03-21 10:58:14
○ 2026-06-29 06:20:48

●MXmx1.feishu.cn2026-03-21 → 2026-06-29 · 2 obs

● 2026-03-21 10:58:14
● 2026-06-29 06:20:48

●MXmx2.feishu.cn2026-03-21 → 2026-06-29 · 2 obs

● 2026-03-21 10:58:14
● 2026-06-29 06:20:48

●MXmx3.feishu.cn2026-03-21 → 2026-06-29 · 2 obs

● 2026-03-21 10:58:14
● 2026-06-29 06:20:48

●A47.100.70.1112026-03-21 → 2026-06-29 · 2 obs

● 2026-03-21 10:58:14
● 2026-06-29 06:20:48

○CNAMEhdredirect-lb6-54290b28133ca5af.elb.us-east-1.amazonaws.com2020-01-21 → 2020-01-21 · 3 obs

● 2020-01-21 03:26:46
○ 2026-03-21 10:58:14
○ 2026-06-29 06:20:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
sleepbrain.com	dns11.hichina.com, dns12.hichina.com	18 records

✅ Authoritative Response

Server:2408:4009:501::20

NS records: dns11.hichina.com, dns12.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sleepbrain.com (unsigned zone)

⏱️ Timing

Total: 2584ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`47.100.70.111`
NS	2	`dns12.hichina.com, dns11.hichina.com`
MX	3	`mx3.feishu.cn (pri: 10), mx2.feishu.cn (pri: 5)...`
TXT	2	`v=spf1 +include:_netblocks.m.feishu.cn -, verification-code-site-App_feishu=gkimh9`
SOA	1	`dns11.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns11.hichina.com, dns11.hichina.com, dns11.hichina.com...)

Analysis

Hierarchy

The domain web.sleepbrain.com falls under the parent sleepbrain.com.

IP Addresses

sleepbrain.com directs to one IP number, which is 47.100.70.111.

Name Servers

Two name servers handle the delegation for sleepbrain.com: dns11.hichina.com and dns12.hichina.com.

sleepbrain.com has the same name server delegation as a number of other domains, such as bomayelectric.net, gkwu.cn, 281212.com and two more.

At least some of sleepbrain.com's name servers are shared with other domains, for example exworth.com, ashfrm.com, lnjkaz.com and two more.

These name servers are often deployed together with the name servers expirens3.hichina.com, expirens4.hichina.com, ns1.alidns.com and ns2.alidns.com.

Host names resolving to 9 IP numbers:

dns11.hichina.com resolves to 39.96.153.42, 39.96.153.52 and 47.118.199.202 among others, with 6 other IP addresses in total.

dns12.hichina.com resolves to 39.96.153.41, 39.96.153.51 and 47.118.199.201 among others, with 6 other IP addresses in total.

Mail Servers

The MX records for sleepbrain.com list three mail servers: mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn.

sleepbrain.com shares at least some of its mail servers with other domains — for example relaverse.cn, kk30.com, ytmicro.com and two more.

Hosts with three IP address records:

The hostname mx3.feishu.cn points to 52.220.106.220, 101.126.58.225 and 122.14.229.0.

Hosts with two IP numbers each:

mx2.feishu.cn resolves to two addresses: 101.126.58.225 and 122.14.229.0.

Hosts that resolve to one IP address:

The hostname mx1.feishu.cn resolves to 52.220.106.220.

mx3.feishu.cn along with mx1.feishu.cn each resolve to 52.220.106.220 IP addresses.

mx3.feishu.cn along with mx2.feishu.cn each resolve to 101.126.58.225 IP addresses.

mx3.feishu.cn along with mx2.feishu.cn each resolve to 122.14.229.0 IP addresses.