`book90.cn`

DNSSEC	⚠️ Not signed
A	207.56.175.112^{🇺🇸 USZNI-AS-AP207.56.160.0/20}
NS	`ns1.nowcndns.com` ⭐
		A	1.193.216.204^{🇨🇳 CHINANET-Henan-Luoyang-IDC1.193.216.0/24 Chinatelecom HeNan Province Network}
		A	218.98.111.129^{🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED}
		A	218.98.111.138^{🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED}
NS	`ns2.nowcndns.com`
		A	61.158.128.11^{🇨🇳 CHINA169-Backbone61.158.128.0/17 CNC Group CHINA169 Henan Province Network}
			PTR	`11.128.158.61.ha.cnc`
		A	183.253.57.202^{🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route)}
		A	211.99.99.38^{🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object}
SOA	`ns1.nowcndns.com`admin@nowcndns.com serial=1773466107

`cn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2034608170

Same first word

book90.cn

Similar names

kobo90.com

09book.co.kr

DNS History

10 records (3 active, 7 former)

○NSf1g1ns1.dnspod.net2015-05-27 → 2015-10-17 · 4 obs

● 2015-05-27 00:26:56
● 2015-10-17 15:56:44
○ 2026-03-16 23:04:08
○ 2026-03-29 21:41:34

○NSf1g1ns2.dnspod.net2015-05-27 → 2015-10-17 · 4 obs

● 2015-05-27 00:26:56
● 2015-10-17 15:56:44
○ 2026-03-16 23:04:08
○ 2026-03-29 21:41:34

●NSns1.nowcndns.com2026-03-16 → 2026-03-29 · 3 obs

○ 2015-10-17 15:56:44
● 2026-03-16 23:04:08
● 2026-03-29 21:41:34

●NSns2.nowcndns.com2026-03-16 → 2026-03-29 · 3 obs

○ 2015-10-17 15:56:44
● 2026-03-16 23:04:08
● 2026-03-29 21:41:34

○MXmail.skrimple.com2016-01-13 → 2017-04-06 · 4 obs

● 2016-01-13 20:14:30
● 2017-04-06 01:00:32
○ 2026-03-16 23:04:08
○ 2026-03-29 21:41:34

○A103.51.144.812016-09-16 → 2016-09-16 · 4 obs

○ 2016-04-05 14:33:46
● 2016-09-16 15:38:08
○ 2017-04-06 01:00:32
○ 2026-03-29 21:41:34

○A123.254.111.1902015-05-27 → 2015-10-17 · 4 obs

● 2015-05-27 00:26:56
● 2015-10-17 15:56:44
○ 2016-01-13 20:14:30
○ 2026-03-29 21:41:34

●A207.56.175.1122026-03-16 → 2026-03-29 · 3 obs

○ 2017-04-06 01:00:32
● 2026-03-16 23:04:08
● 2026-03-29 21:41:34

○A50.117.113.2222017-04-06 → 2017-04-06 · 4 obs

○ 2016-09-16 15:38:08
● 2017-04-06 01:00:32
○ 2026-03-16 23:04:08
○ 2026-03-29 21:41:34

○A65.19.157.2352016-01-13 → 2016-04-05 · 5 obs

○ 2015-10-17 15:56:44
● 2016-01-13 20:14:30
● 2016-04-05 14:33:46
○ 2016-09-16 15:38:08
○ 2026-03-29 21:41:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, d.dns.cn, a.dns.cn, c.dns.cn...	-
book90.cn	ns1.nowcndns.com, ns2.nowcndns.com	-

✅ Authoritative Response

Server:218.98.111.129

NS records: ns1.nowcndns.com, ns2.nowcndns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for book90.cn (unsigned zone)

⏱️ Timing

Total: 1526ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`207.56.175.112`
NS	2	`ns1.nowcndns.com, ns2.nowcndns.com`
SOA	1	`ns1.nowcndns.com admin.nowcndns.com`

Analysis

IP Addresses

book90.cn points to IP number: 207.56.175.112.

Other host names such as bwissue.com.cn, 69365.com.cn and www.bwissue.com.cn share IP numbers with book90.cn.

Name Servers

book90.cn is delegated to two name servers: ns1.nowcndns.com and ns2.nowcndns.com.

book90.cn shares the same name server setup as zhantuo888.cn, udi1.cn, yatelan.com.cn, gudianyinyue.com.cn and piaojuquan.cn.

Host names with three IP numbers: ns1.nowcndns.com points to 1.193.216.204, 218.98.111.129 and 218.98.111.138; ns2.nowcndns.com points to 61.158.128.11, 183.253.57.202 and 211.99.99.38.

book90.cn - robtex.com

book90.cn

cn