`zhihelp.com`

DNSSEC	⚠️ Not signed
A	154.80.247.28^{🇭🇰 DXTL-HK154.80.240.0/20 Proxy-registered route object}
NS	`ns1.julydns.com` ⭐
		A	47.97.51.45^{🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD}
NS	`ns2.julydns.com`
		A	162.159.48.223^{Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
SOA	`ns1.julydns.com`master@jmdns.com serial=1764159810

`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=1774569662

Same first word

zhihelp.com

DNS History

7 records (3 active, 4 former)

●NSns1.julydns.com2026-03-26 → 2026-03-27 · 3 obs

○ 2020-01-06 00:12:22
● 2026-03-26 05:16:44
● 2026-03-27 00:05:10

○NSns11.xincache.com2015-07-04 → 2015-07-04 · 3 obs

● 2015-07-04 04:39:22
○ 2015-11-12 23:25:30
○ 2026-03-27 00:05:10

○NSns12.xincache.com2015-07-04 → 2015-07-04 · 3 obs

● 2015-07-04 04:39:22
○ 2015-11-12 23:25:30
○ 2026-03-27 00:05:10

○NSns15.xincache.com2015-11-12 → 2020-01-06 · 5 obs

○ 2015-07-04 04:39:22
● 2015-11-12 23:25:30
● 2020-01-06 00:12:22
○ 2026-03-26 05:16:44
○ 2026-03-27 00:05:10

○NSns16.xincache.com2015-11-12 → 2020-01-06 · 5 obs

○ 2015-07-04 04:39:22
● 2015-11-12 23:25:30
● 2020-01-06 00:12:22
○ 2026-03-26 05:16:44
○ 2026-03-27 00:05:10

●NSns2.julydns.com2026-03-26 → 2026-03-27 · 3 obs

○ 2020-01-06 00:12:22
● 2026-03-26 05:16:44
● 2026-03-27 00:05:10

●A154.80.247.282026-03-26 → 2026-03-27 · 2 obs

● 2026-03-26 05:16:44
● 2026-03-27 00:05:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
zhihelp.com	ns1.julydns.com, ns2.julydns.com	2 records

✅ Authoritative Response

Server:162.159.48.223

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zhihelp.com (unsigned zone)

⏱️ Timing

Total: 3310ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`154.80.247.28`
NS	2	`ns1.julydns.com, ns2.julydns.com`
SOA	1	`ns1.julydns.com master.jmdns.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.julydns.com, ns2.julydns.com)

Analysis

IP Addresses

zhihelp.com points to a single IP: 154.80.247.28.

Name Servers

zhihelp.com's delegation is to two name servers ns1.julydns.com and ns2.julydns.com.

zhihelp.com shares the same name server configuration as other domains, such as kpwz.cn, yingtanruiwen.com, jdzqcgx.com, kuyousc.com and tzjdwj.com.

zhihelp.com at least partially shares its name servers with other domains, for instance basic-controls.com, shfsjj.cn, qanlan.cn, digitaltechpoint.com and gdxkwl.cn.

These name servers are commonly used alongside ns1.judns.com and ns2.judns.com.

Host names with a single IP:

ns1.julydns.com resolves to 47.97.51.45.

ns2.julydns.com resolves to 162.159.48.223.

zhihelp.com - robtex.com

zhihelp.com

com