`publicknow.com`

DNSSEC	⚠️ Not signed
A	139.196.93.0^{🇨🇳 Alibaba-Cloud139.196.0.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`dns17.hichina.com` ⭐
		A	2408:4009:501::25^{🇨🇳 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	`dns18.hichina.com`
		A	2408:4009:501::26^{🇨🇳 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,}
MX	`mxbiz1.qq.com` ⭐
MX	`mxbiz2.qq.com`⁽¹⁰⁾
SOA	`dns17.hichina.com`hostmaster@hichina.com 2026-01-09 #13

`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=1777797281

Same first word

publicknow.com

DNS History

11 records (5 active, 6 former)

○NSdns10.hichina.com2015-07-04 → 2017-01-28 · 4 obs

● 2015-07-04 22:31:28
● 2017-01-28 14:26:48
○ 2018-09-18 09:15:34
○ 2026-05-03 08:39:08

●NSdns17.hichina.com2026-04-24 → 2026-05-03 · 3 obs

○ 2018-09-18 09:15:34
● 2026-04-24 20:50:32
● 2026-05-03 08:39:08

●NSdns18.hichina.com2026-04-24 → 2026-05-03 · 3 obs

○ 2018-09-18 09:15:34
● 2026-04-24 20:50:32
● 2026-05-03 08:39:08

○NSdns9.hichina.com2015-07-04 → 2017-01-28 · 4 obs

● 2015-07-04 22:31:28
● 2017-01-28 14:26:48
○ 2018-09-18 09:15:34
○ 2026-05-03 08:39:08

○NSvip1.alidns.com2018-09-18 → 2018-09-18 · 4 obs

○ 2017-01-28 14:26:48
● 2018-09-18 09:15:34
○ 2026-04-24 20:50:32
○ 2026-05-03 08:39:08

○NSvip2.alidns.com2018-09-18 → 2018-09-18 · 4 obs

○ 2017-01-28 14:26:48
● 2018-09-18 09:15:34
○ 2026-04-24 20:50:32
○ 2026-05-03 08:39:08

●MXmxbiz1.qq.com2016-04-28 → 2026-05-03 · 3 obs

○ 2016-02-06 15:02:10
● 2016-04-28 16:40:32
● 2026-05-03 08:39:08

●MXmxbiz2.qq.com2016-04-28 → 2026-05-03 · 3 obs

○ 2016-02-06 15:02:10
● 2016-04-28 16:40:32
● 2026-05-03 08:39:08

○MXmxn.mxhichina.com2015-07-04 → 2016-02-06 · 4 obs

● 2015-07-04 22:31:28
● 2016-02-06 15:02:10
○ 2016-04-28 16:40:32
○ 2026-05-03 08:39:08

○MXmxw.mxhichina.com2015-07-04 → 2016-02-06 · 4 obs

● 2015-07-04 22:31:28
● 2016-02-06 15:02:10
○ 2016-04-28 16:40:32
○ 2026-05-03 08:39:08

●A139.196.93.02017-01-28 → 2026-05-03 · 2 obs

● 2017-01-28 14:26:48
● 2026-05-03 08:39:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
publicknow.com	dns17.hichina.com, dns18.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.40

NS records: dns17.hichina.com, dns18.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for publicknow.com (unsigned zone)

⏱️ Timing

Total: 558ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`139.196.93.0`
NS	2	`dns17.hichina.com, dns18.hichina.com`
MX	2	`mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10)`
SOA	1	`dns17.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns17.hichina.com, dns17.hichina.com, dns17.hichina.com...)

Analysis

IP Addresses

publicknow.com points to a single IP: 139.196.93.0.

Name Servers

publicknow.com's delegation is to two name servers dns17.hichina.com and dns18.hichina.com.

publicknow.com shares the same name server configuration as other domains, such as pannile.com, yuanyu.net, bioisp.com, hibake.com and outimer.com.

publicknow.com shares name servers with other domains at least partially, for instance qdsay.com, pcidg.com and 02kf.com.

These name servers are commonly used alongside expirens3.hichina.com and expirens4.hichina.com.

Host names with nine IP numbers: dns17.hichina.com points to 2408:4009:501::25, 39.96.153.40, 39.96.153.60, 47.118.199.200, 47.118.199.220, 120.76.107.40, 120.76.107.60, 139.224.142.100 and 139.224.142.110; dns18.hichina.com points to 2408:4009:501::26, 39.96.153.38, 39.96.153.61, 47.118.199.198, 47.118.199.222, 120.76.107.38, 120.76.107.61, 139.224.142.98 and 139.224.142.108.

Mail Servers

Two mail servers mxbiz1.qq.com and mxbiz2.qq.com handle publicknow.com.

publicknow.com uses the same mail server setup as other domains such as dimgogo.com, xhyule.com, julichuang.com, qiyedianshang.com and jsmcxt.com.

publicknow.com shares at least partially some mail servers with other domains, for example szdutian.com, gcchaos.com, zosoda.com and openaiteach.com.

publicknow.com - robtex.com

publicknow.com

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