`blackmarlinsecurity.com`

DNSSEC	⚠️ Not signed
NS	`ns1.digitalocean.com` ⚠️ Not in zone NS records
		A	2606:4700:52::ac40:34d2^{🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.digitalocean.com`
		A	172.64.52.210^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.digitalocean.com`
NS	`ns2.digitalocean.com` ⚠️ Not in zone NS records
		A	2606:4700:5a::ac40:3515^{🇺🇸 Cloudflare2606:4700:5a::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.digitalocean.com`
		A	172.64.53.21^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.digitalocean.com`
NS	`ns3.digitalocean.com` ⚠️ Not in zone NS records
		A	2606:4700:52::ac40:31d1^{🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns3.digitalocean.com`
		A	172.64.49.209^{🇺🇸 Cloudflare172.64.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns3.digitalocean.com`

`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=1777320356

Previously MX for

blackmarlinsecurity.com

Same first word

blackmarlinsecurity.com

DNS History

9 records (3 active, 6 former)

○NSns1.bluehost.com2015-07-09 → 2015-11-16 · 4 obs

● 2015-07-09 19:08:10
● 2015-11-16 00:53:16
○ 2016-03-06 10:43:04
○ 2026-04-27 20:32:06

●NSns1.digitalocean.com2016-03-06 → 2026-04-27 · 3 obs

○ 2015-11-16 00:53:16
● 2016-03-06 10:43:04
● 2026-04-27 20:32:06

○NSns2.bluehost.com2015-07-09 → 2015-11-16 · 4 obs

● 2015-07-09 19:08:10
● 2015-11-16 00:53:16
○ 2016-03-06 10:43:04
○ 2026-04-27 20:32:06

●NSns2.digitalocean.com2016-03-06 → 2026-04-27 · 3 obs

○ 2015-11-16 00:53:16
● 2016-03-06 10:43:04
● 2026-04-27 20:32:06

●NSns3.digitalocean.com2016-03-06 → 2026-04-27 · 3 obs

○ 2015-11-16 00:53:16
● 2016-03-06 10:43:04
● 2026-04-27 20:32:06

○MXblackmarlinsecurity.com2015-07-09 → 2015-11-16 · 4 obs

● 2015-07-09 19:08:10
● 2015-11-16 00:53:16
○ 2016-03-06 10:43:04
○ 2026-04-27 20:32:06

○A45.55.110.2082016-03-06 → 2016-03-06 · 4 obs

○ 2015-11-16 00:53:16
● 2016-03-06 10:43:04
○ 2016-07-12 17:59:12
○ 2026-04-27 20:32:06

○A45.55.110.752016-07-12 → 2017-03-25 · 5 obs

○ 2016-03-06 10:43:04
● 2016-07-12 17:59:12
● 2017-03-25 21:47:42
○ 2026-03-23 06:56:46
○ 2026-04-27 20:32:06

○A69.89.31.2282015-07-09 → 2015-11-16 · 4 obs

● 2015-07-09 19:08:10
● 2015-11-16 00:53:16
○ 2016-03-06 10:43:04
○ 2026-04-27 20:32:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net...	-
blackmarlinsecurity.com	ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com	3 records

✅ Authoritative Response

Server:172.64.53.21

NS records: ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for blackmarlinsecurity.com (unsigned zone)

⏱️ Timing

Total: 234ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com)

Analysis

Name Servers

The delegation for blackmarlinsecurity.com is handled by three name servers: ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com.

blackmarlinsecurity.com shares name servers with other domains at least partially, for example interactiondesign.org, 1.0.0.8.3.a.0.1.0.0.0.0.0.0.0.0.0.d.0.0.3.0.0.0.0.c.0.b.3.0.a.2.ip6.arpa, zcellz.com, aqservices.com and gopaywall.com.

Host names with two IPs:

ns1.digitalocean.com points to 2606:4700:52::ac40:34d2 and 172.64.52.210

ns2.digitalocean.com points to 2606:4700:5a::ac40:3515 and 172.64.53.21

ns3.digitalocean.com points to 2606:4700:52::ac40:31d1 and 172.64.49.209

blackmarlinsecurity.com - robtex.com