syncbook.net - dns.ninja

`syncbook.net`

DNSSEC	⚠️ Not signed
NS	`dns21.hichina.com` ⭐
		A	2408:4009:501::29^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.40^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.60^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.200^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.220^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.40^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.60^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.100^{🇨🇳 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	139.224.142.110^{🇨🇳 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	`dns22.hichina.com`
		A	2408:4009:501::30^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.38^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.61^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.198^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.222^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.38^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.61^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.98^{🇨🇳 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	139.224.142.108^{🇨🇳 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,}
SOA	`dns21.hichina.com`hostmaster@hichina.com 2026-01-12 #9

`net`

	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=1783486711

Same first word

syncbook.com

syncbook.net

syncbook.in

Similar names

booksync.net

cnybooks.com

booksnyc.com

boncosky.com

nycbooks.com

booksync.com

DNS History

7 records (2 active, 5 former)

●NSdns21.hichina.com2026-04-23 → 2026-07-08 · 3 obs

○ 2016-12-21 11:07:00
● 2026-04-23 03:20:46
● 2026-07-08 05:01:02

●NSdns22.hichina.com2026-04-23 → 2026-07-08 · 3 obs

○ 2016-12-21 11:07:00
● 2026-04-23 03:20:46
● 2026-07-08 05:01:02

○NSns55.domaincontrol.com2015-08-03 → 2016-12-21 · 4 obs

● 2015-08-03 04:38:16
● 2016-12-21 11:07:00
○ 2026-04-23 03:20:46
○ 2026-07-08 05:01:02

○NSns56.domaincontrol.com2015-08-03 → 2016-12-21 · 4 obs

● 2015-08-03 04:38:16
● 2016-12-21 11:07:00
○ 2026-04-23 03:20:46
○ 2026-07-08 05:01:02

○MXmailstore1.secureserver.net2015-08-03 → 2016-12-21 · 4 obs

● 2015-08-03 04:38:16
● 2016-12-21 11:07:00
○ 2026-04-23 03:20:46
○ 2026-07-08 05:01:02

○MXsmtp.secureserver.net2015-08-03 → 2016-12-21 · 4 obs

● 2015-08-03 04:38:16
● 2016-12-21 11:07:00
○ 2026-04-23 03:20:46
○ 2026-07-08 05:01:02

○A184.168.221.472015-08-03 → 2016-12-21 · 4 obs

● 2015-08-03 04:38:16
● 2016-12-21 11:07:00
○ 2026-04-23 03:20:46
○ 2026-07-08 05:01:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	m.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net...	-
syncbook.net	dns21.hichina.com, dns22.hichina.com	-

✅ Authoritative Response

Server:39.96.153.60

NS records: dns21.hichina.com, dns22.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for syncbook.net (unsigned zone)

⏱️ Timing

Total: 4826ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns21.hichina.com, dns22.hichina.com`
SOA	1	`dns21.hichina.com hostmaster.hichina.com`

Analysis

Name Servers

The NS records for syncbook.net delegate to dns21.hichina.com and dns22.hichina.com.

syncbook.net shares its NS records with other domains, for example xindashop.com, xrmlhp.cn, hei-ai.com and two others.

syncbook.net at least partially shares name servers with other domains, for instance xn--9kq309ih6a.com, yymy.com, zqza.net and jacf.cn.

These name servers regularly co-occur with the name servers ns1.alidns.com, expirens3.hichina.com and expirens4.hichina.com.

DNS names with 9 IP addresses:

dns21.hichina.com maps to 39.96.153.40, 39.96.153.60, 47.118.199.200 and 6 additional IP addresses.

dns22.hichina.com maps to 39.96.153.38, 39.96.153.61, 47.118.199.198 and 6 additional IP addresses.