ptthink.com - dns.ninja

`ptthink.com`

DNSSEC	⚠️ Not signed
A	139.220.197.20^{🇨🇳 CMNET-V4TIANJIN-AS-AP139.220.196.0/23 CMI (Customer Route)}
		PTR	`static.user.197.220.139.pbscn.net`
NS	`dns9.hichina.com` ⭐
		A	2408:4009:501::17^{🇨🇳 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	`dns10.hichina.com`
		A	2408:4009:501::18^{🇨🇳 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	`mxbiz1.qq.com` ⭐
MX	`mxbiz2.qq.com`⁽¹⁰⁾
TXT	`v=spf1 include:spf.mail.qq.com ~all`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`dns9.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=1781644280

Same first word

ptthink.com

Similar names

thinkpt.net

DNS History

10 records (5 active, 5 former)

●NSdns10.hichina.com2026-06-16 → 2026-06-16 · 3 obs

○ 2016-04-18 13:38:04
● 2026-06-16 21:33:04
● 2026-06-16 21:33:06

●NSdns9.hichina.com2026-06-16 → 2026-06-16 · 3 obs

○ 2016-04-18 13:38:04
● 2026-06-16 21:33:04
● 2026-06-16 21:33:06

○NSf1g1ns1.dnspod.net2016-01-24 → 2016-04-18 · 5 obs

○ 2015-12-03 01:58:36
● 2016-01-24 17:11:12
● 2016-04-18 13:38:04
○ 2026-06-16 21:33:04
○ 2026-06-16 21:33:06

○NSf1g1ns2.dnspod.net2016-01-24 → 2016-04-18 · 5 obs

○ 2015-12-03 01:58:36
● 2016-01-24 17:11:12
● 2016-04-18 13:38:04
○ 2026-06-16 21:33:04
○ 2026-06-16 21:33:06

○NSns15.xincache.com2015-08-06 → 2015-12-03 · 4 obs

● 2015-08-06 02:48:06
● 2015-12-03 01:58:36
○ 2016-01-24 17:11:12
○ 2026-06-16 21:33:06

○NSns16.xincache.com2015-08-06 → 2015-12-03 · 4 obs

● 2015-08-06 02:48:06
● 2015-12-03 01:58:36
○ 2016-01-24 17:11:12
○ 2026-06-16 21:33:06

●MXmxbiz1.qq.com2015-08-06 → 2026-06-16 · 2 obs

● 2015-08-06 02:48:06
● 2026-06-16 21:33:06

●MXmxbiz2.qq.com2015-08-06 → 2026-06-16 · 2 obs

● 2015-08-06 02:48:06
● 2026-06-16 21:33:06

○A114.112.175.2092015-08-06 → 2015-12-03 · 4 obs

● 2015-08-06 02:48:06
● 2015-12-03 01:58:36
○ 2016-01-24 17:11:12
○ 2026-06-16 21:33:06

●A139.220.197.202016-01-24 → 2026-06-16 · 3 obs

○ 2015-12-03 01:58:36
● 2016-01-24 17:11:12
● 2026-06-16 21:33:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
ptthink.com	dns9.hichina.com, dns10.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.42

NS records: dns9.hichina.com, dns10.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ptthink.com (unsigned zone)

⏱️ Timing

Total: 520ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`139.220.197.20`
NS	2	`dns10.hichina.com, dns9.hichina.com`
MX	2	`mxbiz2.qq.com (pri: 10), mxbiz1.qq.com (pri: 5)`
TXT	2	`v=spf1 include:_spf.google.com ~all, v=spf1 include:spf.mail.qq.com ~all`
SOA	1	`dns9.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns9.hichina.com, dns9.hichina.com, dns9.hichina.com...)

Analysis

IP Addresses

ptthink.com has exactly one IP address — 139.220.197.20.

Name Servers

The NS records for ptthink.com delegate to dns10.hichina.com and dns9.hichina.com.

The name server configuration of ptthink.com is shared with other domains, for instance trsem.com, akiraka.net, galfan.net and two others.

ptthink.com and other domains like agnes.cn share at least a portion of their name servers.

Hosts with 9 IP addresses each:

dns10.hichina.com maps to 39.96.153.41, 39.96.153.51, 47.118.199.201 and 6 additional IP addresses.

dns9.hichina.com maps to 39.96.153.42, 39.96.153.52, 47.118.199.202 and 6 additional IP addresses.

Mail Servers

ptthink.com uses two mail servers, mxbiz1.qq.com and mxbiz2.qq.com.

The mail server setup of ptthink.com matches that of other domains such as itouchchina.com, tdhunt.com, gzcxgd.com and two others.

ptthink.com partially shares its mail servers with other domains; known examples include busac.parts, lnetong.com and byh365.cn.