`dnsfortress.com`

DNSSEC	⚠️ Not signed
A	158.220.91.254^{🇬🇧 CONTABO158.220.80.0/20}
		PTR	`vmi2376890.contaboserver.net`
NS	`vmi2376890.contaboserver.net` ⭐ ⚠️ Not in parent delegation
		A	158.220.91.254^{🇬🇧 CONTABO158.220.80.0/20}
			PTR	`vmi2376890.contaboserver.net`
NS	`ns1.dnsfortress.com` ⚠️ Not in zone NS records
NS	`ns2.dnsfortress.com` ⚠️ Not in zone NS records
MX	`mail.dnsfortress.com` ⭐
		A	158.220.91.254^{🇬🇧 CONTABO158.220.80.0/20}
			PTR	`vmi2376890.contaboserver.net`
TXT	`v=spf1 a mx a:dnsfortress.com ip4:158.220.91.254 ?all`
SOA	`vmi2376890.contaboserver.net`root@vmi2376890.contaboserver.net 2025-10-17 #23

`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=1777261401

Subdomains

mail.dnsfortress.com

Same first word

dnsfortress.co.uk

dnsfortress.com

Similar names

fortressdns.net

DNS History

7 records (5 active, 2 former)

●NSns1.dnsfortress.com2015-06-27 → 2026-04-27 · 2 obs

● 2015-06-27 05:46:52
● 2026-04-27 03:48:40

●NSns2.dnsfortress.com2015-06-27 → 2026-04-27 · 2 obs

● 2015-06-27 05:46:52
● 2026-04-27 03:48:40

●NSvmi2376890.contaboserver.net2026-04-27 → 2026-04-27 · 2 obs

○ 2015-06-27 05:46:52
● 2026-04-27 03:48:40

○MXdnsfortress.com2015-06-27 → 2017-03-16 · 3 obs

● 2015-06-27 05:46:52
● 2017-03-16 13:00:28
○ 2026-04-27 03:48:40

●MXmail.dnsfortress.com2026-04-27 → 2026-04-27 · 2 obs

○ 2017-03-16 13:00:28
● 2026-04-27 03:48:40

○A109.203.102.2132015-06-27 → 2017-03-16 · 3 obs

● 2015-06-27 05:46:52
● 2017-03-16 13:00:28
○ 2026-04-27 03:48:40

●A158.220.91.2542026-04-27 → 2026-04-27 · 2 obs

○ 2017-03-16 13:00:28
● 2026-04-27 03:48:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, b.gtld-servers.net, m.gtld-servers.net, l.gtld-servers.net...	-
dnsfortress.com	ns1.dnsfortress.com, ns2.dnsfortress.com	2 records

✅ Authoritative Response

Server:158.220.91.254

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dnsfortress.com (unsigned zone)

⏱️ Timing

Total: 208ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`158.220.91.254`
NS	1	`vmi2376890.contaboserver.net`
MX	1	`mail.dnsfortress.com (pri: 5)`
TXT	1	`v=spf1 a mx a:dnsfortress.com ip4:158.22`
SOA	1	`vmi2376890.contaboserver.net root.vmi237`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.dnsfortress.com, ns2.dnsfortress.com)

Analysis

Hierarchy

dnsfortress.com is the parent of mail.dnsfortress.com.

IP Addresses

dnsfortress.com resolves to one IP number: 158.220.91.254.

Other host names such as mail.dnsfortress.com and vmi2376890.contaboserver.net share IP numbers with dnsfortress.com.

Name Servers

dnsfortress.com is delegated to three name servers ns1.dnsfortress.com, ns2.dnsfortress.com and vmi2376890.contaboserver.net.

Hostnames with a single IP:

vmi2376890.contaboserver.net points to 158.220.91.254.

Mail Servers

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

mail.dnsfortress.com resolves to IP 158.220.91.254.

dnsfortress.com - robtex.com

dnsfortress.com

com