`hd-flex.com`

DNSSEC	⚠️ Not signed
NS	`ns3.chinanetidc.com` ⚠️ Not in zone NS records
		A	61.129.102.67^{🇨🇳 SHANGHAITELECOM61.129.102.0/24 Chinanet Shanghai}
NS	`ns4.chinanetidc.com` ⚠️ Not in zone NS records
		A	159.138.43.193^{🇭🇰 HWCSNET159.138.32.0/20 HUAWEI INTERNATIONAL PTE. LTD. 15A Changi Business Park Central 1 Eightrium 03-03/04}
			PTR	`mail-fw4.bolead.com`
MX	`mail.hd-flex.com` ⭐
		A	163.179.101.3^{🇨🇳 CHINA169-GZ163.179.0.0/16 China Unicom Guangdong Province Network}
			PTR	`hd-flex.com`
TXT	`v=spf1 ip4:163.179.101.3 include:_s.corp-email.com -all`

`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=1774425722

PTR for

3.101.179.163.in-addr.arpa

Subdomains

mail.hd-flex.com

Same first word

hd-flex.com

DNS History

10 records (3 active, 7 former)

○NSdns.bizcn.com2015-07-04 → 2018-07-12 · 4 obs

● 2015-07-04 20:09:32
● 2018-07-12 03:56:16
○ 2026-03-01 09:32:04
○ 2026-03-25 08:04:16

○NSns1.chinanetidc.com2015-07-04 → 2015-07-04 · 3 obs

● 2015-07-04 20:09:32
○ 2015-09-27 02:07:30
○ 2026-03-25 08:04:16

○NSns2.chinanetidc.com2015-07-04 → 2015-07-04 · 3 obs

● 2015-07-04 20:09:32
○ 2015-09-27 02:07:30
○ 2026-03-25 08:04:16

●NSns3.chinanetidc.com2026-03-01 → 2026-03-25 · 3 obs

○ 2018-07-12 03:56:16
● 2026-03-01 09:32:04
● 2026-03-25 08:04:16

●NSns4.chinanetidc.com2026-03-01 → 2026-03-25 · 3 obs

○ 2018-07-12 03:56:16
● 2026-03-01 09:32:04
● 2026-03-25 08:04:16

○NSns7.cnmsn.net2015-09-27 → 2018-07-12 · 5 obs

○ 2015-07-04 20:09:32
● 2015-09-27 02:07:30
● 2018-07-12 03:56:16
○ 2026-03-01 09:32:04
○ 2026-03-25 08:04:16

○NSns8.cnmsn.net2015-09-27 → 2018-07-12 · 5 obs

○ 2015-07-04 20:09:32
● 2015-09-27 02:07:30
● 2018-07-12 03:56:16
○ 2026-03-01 09:32:04
○ 2026-03-25 08:04:16

●MXmail.hd-flex.com2015-07-04 → 2026-03-25 · 2 obs

● 2015-07-04 20:09:32
● 2026-03-25 08:04:16

○A124.173.118.762018-07-12 → 2018-07-12 · 4 obs

○ 2017-01-05 11:26:36
● 2018-07-12 03:56:16
○ 2026-03-01 09:32:04
○ 2026-03-25 08:04:16

○A124.173.64.762015-07-04 → 2017-01-05 · 4 obs

● 2015-07-04 20:09:32
● 2017-01-05 11:26:36
○ 2018-07-12 03:56:16
○ 2026-03-25 08:04:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, j.gtld-servers.net, a.gtld-servers.net, m.gtld-servers.net...	-
hd-flex.com	ns3.chinanetidc.com, ns4.chinanetidc.com	2 records

✅ Authoritative Response

Server:159.138.43.193

NS records: ns3.chinanetidc.com, ns4.chinanetidc.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hd-flex.com (unsigned zone)

⏱️ Timing

Total: 515ms | Queries: -

📄 Records

Type	Count	Sample Data
MX	1	`mail.hd-flex.com (pri: 10)`
TXT	1	`v=spf1 ip4:163.179.101.3 include:_s.corp`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns3.chinanetidc.com, ns4.chinanetidc.com)

Analysis

Hierarchy

hd-flex.com is the parent of mail.hd-flex.com.

Name Servers

hd-flex.com has two name servers: ns3.chinanetidc.com and ns4.chinanetidc.com.

hd-flex.com shares the same name server setup as other domains, for example szsunyuan.com, kazhuo.com, talent-tek.com, enhz.com and szobm.com.

hd-flex.com shares some name servers with other domains, for example winming.com, syyxt.com, feikun.com, kevebron.com and idobe.cn.

These name servers are commonly used together with ns5.bolead.com and ns6.bolead.com.

Host names with a single IP:

ns3.chinanetidc.com points to 61.129.102.67

ns4.chinanetidc.com points to 159.138.43.193

Mail Servers

hd-flex.com is handled by a single mail server, mail.hd-flex.com.

Host name mail.hd-flex.com points to IP 163.179.101.3.

hd-flex.com - robtex.com

hd-flex.com

com