🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`problemstructuring.com`

DNSSEC	⚠️ Not signed
A	173.254.30.90^{🇺🇸 EIGI173.254.30.0/23}
		PTR	`just2004.justhost.com`
NS	`ns1.justhost.com` ⭐
		A	162.159.24.49^{Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.justhost.com`
NS	`ns2.justhost.com`
		A	162.159.25.241^{Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.justhost.com`
MX	`mail.problemstructuring.com` ⭐
		A	173.254.30.90^{🇺🇸 EIGI173.254.30.0/23}
			PTR	`just2004.justhost.com`
MX	`problemstructuring.com`⁽¹⁰⁾
		A	173.254.30.90^{🇺🇸 EIGI173.254.30.0/23}
			PTR	`just2004.justhost.com`
TXT	`v=spf1 a mx include:websitewelcome.com ~all`
SOA	`ns1.justhost.com`root@just2004.justhost.com 2025-04-05 #0

`com`

	DNSSEC	⚠️ Not signed
	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=1793595971

MX for

problemstructuring.com

Subdomains

mail.problemstructuring.com

Same first word

problemstructuring.com

problemstructuring.net

Previous names

Next names

DNS History

10 records (5 active, 5 former)

○NSdocks07.rzone.de2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 17:23:16
○ 2026-10-05 08:35:38
○ 2026-11-02 05:29:24

●NSns1.justhost.com2026-10-05 → 2026-11-02 · 3 obs

○ 2019-12-15 17:23:16
● 2026-10-05 08:35:38
● 2026-11-02 05:29:24

●NSns2.justhost.com2026-10-05 → 2026-11-02 · 3 obs

○ 2019-12-15 17:23:16
● 2026-10-05 08:35:38
● 2026-11-02 05:29:24

○NSshades19.rzone.de2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 17:23:16
○ 2026-10-05 08:35:38
○ 2026-11-02 05:29:24

●MXmail.problemstructuring.com2026-10-05 → 2026-11-02 · 3 obs

○ 2019-12-15 17:23:16
● 2026-10-05 08:35:38
● 2026-11-02 05:29:24

●MXproblemstructuring.com2026-10-05 → 2026-11-02 · 3 obs

○ 2019-12-15 17:23:16
● 2026-10-05 08:35:38
● 2026-11-02 05:29:24

○MXsmtpin.rzone.de2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 17:23:16
○ 2026-10-05 08:35:38
○ 2026-11-02 05:29:24

●A173.254.30.902026-10-05 → 2026-11-02 · 3 obs

○ 2019-12-15 17:23:16
● 2026-10-05 08:35:38
● 2026-11-02 05:29:24

○A2a01:238:20a:202:1148::2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 17:23:16
○ 2026-10-05 08:35:38
○ 2026-11-02 05:29:24

○A81.169.145.1482019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 17:23:16
○ 2026-10-05 08:35:38
○ 2026-11-02 05:29:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, b.gtld-servers.net, d.gtld-servers.net, f.gtld-servers.net...	-
problemstructuring.com	ns1.justhost.com, ns2.justhost.com	2 records

✅ Authoritative Response

Server:162.159.24.49

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for problemstructuring.com (unsigned zone)

⏱️ Timing

Total: 198ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`173.254.30.90`
NS	2	`ns1.justhost.com, ns2.justhost.com`
MX	2	`mail.problemstructuring.com (pri: 0), problemstructuring.com (pri: 10)`
TXT	1	`v=spf1 a mx include:websitewelcome.com ~`
SOA	1	`ns1.justhost.com root.just2004.justhost.`

📌 Glue Records Collected

Total: 2

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

Analysis

Hierarchy

The domain mail.problemstructuring.com falls under the parent problemstructuring.com.

Mail Server Role

problemstructuring.com serves as a mail server for problemstructuring.com.

mail.problemstructuring.com is a mail server commonly deployed alongside problemstructuring.com.

IP Addresses

problemstructuring.com has exactly one IP address — 173.254.30.90.

getfmsservices.com, christwinfield.org, mail.wampu.com.pe plus two other host names have IP numbers in common with problemstructuring.com.

Name Servers

Two name servers handle the delegation for problemstructuring.com: ns1.justhost.com and ns2.justhost.com.

The name server configuration of problemstructuring.com is shared with other domains, for instance migralens.com, boldsay.com, themendelsohns.us and two others.

At least some of problemstructuring.com's name servers are shared with other domains, for example signocomunicaciones.com, 1234test.co.uk, biztou.com and two more.

These name servers tend to appear together with the name servers ns2.pipedns.com, ns3.pipedns.com and ns1.bluehost.com, plus two others.

Each of ns1.justhost.com and ns2.justhost.com has one IP address: ns1.justhost.com uses 162.159.24.49 and ns2.justhost.com uses 162.159.25.241.

Mail Servers

problemstructuring.com relies on two mail servers for delivery — problemstructuring.com and mail.problemstructuring.com.

problemstructuring.com directs to 173.254.30.90, as does mail.problemstructuring.com — both hostnames resolve to that one IP address.

problemstructuring.com along with mail.problemstructuring.com each resolve to 173.254.30.90 IP addresses.

problemstructuring.com - robtex.com