`extremembtool.com`

DNSSEC	⚠️ Not signed
A	167.86.97.200^{🇩🇪 CONTABO167.86.96.0/23}
		PTR	`dsrv1.diagcode.com`
NS	`ns1.diagcode.com` ⭐ ⚠️ Not in parent delegation
		A	167.86.97.200^{🇩🇪 CONTABO167.86.96.0/23}
			PTR	`dsrv1.diagcode.com`
NS	`ns2.diagcode.com` ⚠️ Not in zone NS records
		A	167.86.97.200^{🇩🇪 CONTABO167.86.96.0/23}
			PTR	`dsrv1.diagcode.com`
NS	`ns3.diagcode.com` ⚠️ Not in zone NS records
		A	167.86.97.200^{🇩🇪 CONTABO167.86.96.0/23}
			PTR	`dsrv1.diagcode.com`
MX	`mail.extremembtool.com` ⭐
		A	167.86.97.200^{🇩🇪 CONTABO167.86.96.0/23}
			PTR	`dsrv1.diagcode.com`
TXT	`v=spf1 a mx a:extremembtool.com ip4:10.1.232.201 ip4:167.86.97.200 ?all`
SOA	`ns1.diagcode.com`root@ns1.diagcode.com serial=1606747259

`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=1774400362

Subdomains

mail.extremembtool.com

Same first word

extremembtool.com

DNS History

6 records (5 active, 1 former)

●NSns1.diagcode.com2019-10-11 → 2026-03-25 · 2 obs

● 2019-10-11 10:17:16
● 2026-03-25 01:18:02

●NSns2.diagcode.com2019-10-11 → 2026-03-25 · 2 obs

● 2019-10-11 10:17:16
● 2026-03-25 01:18:02

●NSns3.diagcode.com2019-10-11 → 2026-03-25 · 2 obs

● 2019-10-11 10:17:16
● 2026-03-25 01:18:02

●MXmail.extremembtool.com2019-10-11 → 2026-03-25 · 2 obs

● 2019-10-11 10:17:16
● 2026-03-25 01:18:02

○A163.172.176.1482019-10-11 → 2019-10-11 · 3 obs

● 2019-10-11 10:17:16
○ 2026-02-15 02:18:18
○ 2026-03-25 01:18:02

●A167.86.97.2002026-02-15 → 2026-03-25 · 3 obs

○ 2019-10-11 10:17:16
● 2026-02-15 02:18:18
● 2026-03-25 01:18:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
extremembtool.com	ns2.diagcode.com, ns3.diagcode.com	2 records

✅ Authoritative Response

Server:167.86.97.200

NS records: ns2.diagcode.com, ns3.diagcode.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for extremembtool.com (unsigned zone)

⏱️ Timing

Total: 281ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`167.86.97.200`
NS	1	`ns1.diagcode.com`
MX	1	`mail.extremembtool.com (pri: 5)`
TXT	1	`v=spf1 a mx a:extremembtool.com ip4:10.1`
SOA	1	`ns1.diagcode.com root.ns1.diagcode.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.diagcode.com, ns3.diagcode.com)

Analysis

Hierarchy

extremembtool.com is the parent of mail.extremembtool.com.

IP Addresses

extremembtool.com points to a single IP number: 167.86.97.200.

other host names for instance mail.extremembtool.com, srv1.diagcode.com, mail.hkcalc.com, ns1.diagcode.com and ns2.diagcode.com share IP numbers with extremembtool.com.

Name Servers

extremembtool.com is delegated to three name servers: ns1.diagcode.com, ns2.diagcode.com and ns3.diagcode.com.

extremembtool.com at least partially shares name servers with other domains, for example diagcode.com and hkcalc.com.

Host names with a single IP number:

ns1.diagcode.com points to 167.86.97.200.

ns2.diagcode.com points to 167.86.97.200.

ns3.diagcode.com points to 167.86.97.200.

Host names pointing to 167.86.97.200: ns1.diagcode.com, ns2.diagcode.com and ns3.diagcode.com.

Mail Servers

extremembtool.com is handled by a single mail server, mail.extremembtool.com.

Host name mail.extremembtool.com points to IP address 167.86.97.200.

extremembtool.com - robtex.com