`signjammer.com`

DNSSEC	⚠️ Not signed
A	154.12.19.51^{🇺🇸 AS401696154.12.16.0/21}
NS	`ns1.julydns.com` ⭐ ⚠️ Not in parent delegation
		A	47.97.51.45^{🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD}
NS	`ns1.judns.com` ⚠️ Not in zone NS records
		A	47.97.51.45^{🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD}
NS	`ns2.judns.com` ⚠️ Not in zone NS records
		A	162.159.27.251^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.julydns.com` ⚠️ Not in parent delegation
		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=1770305417

`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=1775986782

Subdomains

mail.signjammer.com

DNS History

9 records (5 active, 4 former)

○NSdns27.hichina.com2015-07-25 → 2016-12-22 · 3 obs

● 2015-07-25 10:43:52
● 2016-12-22 17:52:34
○ 2026-04-12 10:03:36

○NSdns28.hichina.com2015-07-25 → 2016-12-22 · 3 obs

● 2015-07-25 10:43:52
● 2016-12-22 17:52:34
○ 2026-04-12 10:03:36

●NSns1.judns.com2026-04-12 → 2026-04-12 · 2 obs

○ 2016-12-22 17:52:34
● 2026-04-12 10:03:36

●NSns1.julydns.com2026-04-12 → 2026-04-12 · 2 obs

○ 2016-12-22 17:52:34
● 2026-04-12 10:03:36

●NSns2.judns.com2026-04-12 → 2026-04-12 · 2 obs

○ 2016-12-22 17:52:34
● 2026-04-12 10:03:36

●NSns2.julydns.com2026-04-12 → 2026-04-12 · 2 obs

○ 2016-12-22 17:52:34
● 2026-04-12 10:03:36

○A112.124.180.1952015-07-25 → 2015-07-25 · 3 obs

● 2015-07-25 10:43:52
○ 2015-12-09 21:24:54
○ 2026-04-12 10:03:36

●A154.12.19.512026-04-12 → 2026-04-12 · 2 obs

○ 2016-04-29 01:28:20
● 2026-04-12 10:03:36

○A218.60.99.2322015-12-09 → 2016-02-08 · 5 obs

○ 2015-07-25 10:43:52
● 2015-12-09 21:24:54
● 2016-02-08 07:23:54
○ 2016-04-29 01:28:20
○ 2026-04-12 10:03:36

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:47.97.51.45

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for signjammer.com (unsigned zone)

⏱️ Timing

Total: 434ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`154.12.19.51`
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.judns.com, ns2.judns.com)

Analysis

Hierarchy

signjammer.com is the parent of mail.signjammer.com.

IP Addresses

signjammer.com points to a single IP number: 154.12.19.51.

other host names for instance 2v1l.dgltk.cn, 365aizw.com, wtgov.cn.dhbnk.cn, hengmeihardware.com and cbc.shuangxingyxcjdyf.com share IP numbers with signjammer.com.

Name Servers

signjammer.com is delegated to four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.

signjammer.com at least partially shares name servers with other domains, for instance gofreerobot.com, cn-tradex.com, yfupu.cn, jshjgk.com and gn121.com.