`contentblocker.com`

DNSSEC	⚠️ Not signed
NS	`ns1ak.dell.com` ⭐
		A	193.108.91.65^{🇳🇱 Akamai193.108.91.0/24 Technologies}
			PTR	`a1-65.akam.net`
			PTR	`ns1-65.akam.net`
NS	`ns1ns.dell.com`
		A	2400:cb00:2049:1::a29f:995^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.9.149^{Cloudflare162.159.9.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2ak.dell.com`
		A	2600:1408:1c::41^{🇺🇸 Akamai2600:1408:1c::/48 Technologies}
			PTR	`a3-65.akam.net`
			PTR	`ns7-65.akam.net`
		A	96.7.49.65^{🇺🇸 Akamai96.7.49.0/24 Technologies}
NS	`ns2ns.dell.com`
		A	2400:cb00:2049:1::c629:df5a^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	198.41.223.90^{Cloudflare198.41.223.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cf-198-41-223-90.cloudflare.com`
NS	`ns3ak.dell.com`
		A	2600:1401:1::40^{🇺🇸 Akamai2600:1401:1::/48 Technologies}
			PTR	`a6-64.akam.net`
		A	23.211.133.64^{🇺🇸 Akamai23.211.133.0/24 Technologies}
			PTR	`a6-64.akam.net`
NS	`ns3ns.dell.com`
		A	2400:cb00:2049:1::a29f:995^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.9.149^{Cloudflare162.159.9.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns4ak.dell.com` ⚠️ Not in parent delegation
		A	2a02:26f0:117::41^{🇳🇱 Akamai2a02:26f0:117::/48 Technologies}
			PTR	`a9-65.akam.net`
			PTR	`ns5-65.akam.net`
		A	184.85.248.65^{🇺🇸 Akamai184.85.248.0/24 Technologies}
			PTR	`a9-65.akam.net`
			PTR	`ns5-65.akam.net`
NS	`ns4ns.dell.com` ⚠️ Not in parent delegation
		A	2400:cb00:2049:1::c629:df5a^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	198.41.223.90^{Cloudflare198.41.223.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cf-198-41-223-90.cloudflare.com`
TXT	`v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com. ~all`
SOA	`ns1ak.dell.com`dnsadmin@dell.com serial=2024063938

`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=1784808982

Same first word

contentblocker.com

DNS History

13 records (8 active, 5 former)

○NSemcns.emc.com2015-05-20 → 2017-03-26 · 5 obs

○ 2008-03-20 05:34:06
● 2015-05-20 20:46:40
● 2017-03-26 16:54:28
○ 2026-06-20 21:21:36
○ 2026-07-23 12:19:16

○NSemcns2.emc.com2015-05-20 → 2017-03-26 · 5 obs

○ 2008-03-20 05:34:06
● 2015-05-20 20:46:40
● 2017-03-26 16:54:28
○ 2026-06-20 21:21:36
○ 2026-07-23 12:19:16

○NSgw.emc.com2015-05-20 → 2017-03-26 · 5 obs

○ 2008-03-20 05:34:06
● 2015-05-20 20:46:40
● 2017-03-26 16:54:28
○ 2026-06-20 21:21:36
○ 2026-07-23 12:19:16

○NSns0.emc.com2015-05-20 → 2017-03-26 · 5 obs

○ 2008-03-20 05:34:06
● 2015-05-20 20:46:40
● 2017-03-26 16:54:28
○ 2026-06-20 21:21:36
○ 2026-07-23 12:19:16

●NSns1ak.dell.com2026-06-20 → 2026-07-23 · 3 obs

○ 2017-03-26 16:54:28
● 2026-06-20 21:21:36
● 2026-07-23 12:19:16

●NSns1ns.dell.com2026-06-20 → 2026-07-23 · 3 obs

○ 2017-03-26 16:54:28
● 2026-06-20 21:21:36
● 2026-07-23 12:19:16

●NSns2ak.dell.com2026-06-20 → 2026-07-23 · 3 obs

○ 2017-03-26 16:54:28
● 2026-06-20 21:21:36
● 2026-07-23 12:19:16

●NSns2ns.dell.com2026-06-20 → 2026-07-23 · 3 obs

○ 2017-03-26 16:54:28
● 2026-06-20 21:21:36
● 2026-07-23 12:19:16

●NSns3ak.dell.com2026-06-20 → 2026-07-23 · 3 obs

○ 2017-03-26 16:54:28
● 2026-06-20 21:21:36
● 2026-07-23 12:19:16

●NSns3ns.dell.com2026-06-20 → 2026-07-23 · 3 obs

○ 2017-03-26 16:54:28
● 2026-06-20 21:21:36
● 2026-07-23 12:19:16

●NSns4ak.dell.com2026-06-20 → 2026-07-23 · 3 obs

○ 2017-03-26 16:54:28
● 2026-06-20 21:21:36
● 2026-07-23 12:19:16

●NSns4ns.dell.com2026-06-20 → 2026-07-23 · 3 obs

○ 2017-03-26 16:54:28
● 2026-06-20 21:21:36
● 2026-07-23 12:19:16

○MXmail.tablus.com2015-05-20 → 2017-03-26 · 5 obs

○ 2008-03-20 05:34:06
● 2015-05-20 20:46:40
● 2017-03-26 16:54:28
○ 2026-06-20 21:21:36
○ 2026-07-23 12:19:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
contentblocker.com	ns1ak.dell.com, ns2ak.dell.com, ns3ak.dell.com, ns1ns.dell.com...	9 records

✅ Authoritative Response

Server:198.41.223.90

NS records: ns1ak.dell.com, ns2ak.dell.com, ns3ak.dell.com, ns1ns.dell.com, ns2ns.dell.com, ns3ns.dell.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for contentblocker.com (unsigned zone)

⏱️ Timing

Total: 182ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	8	`ns1ak.dell.com, ns4ns.dell.com...`
TXT	1	`v=spf1 include:%{ir}.%{v}.%{d}.spf.has.p`
SOA	1	`ns1ak.dell.com dnsadmin.dell.com`

📌 Glue Records Collected

Total: 9

Out-of-bailiwick: 9 (ns1ak.dell.com, ns2ak.dell.com, ns3ak.dell.com...)

Analysis

Name Servers

contentblocker.com is served by 8 authoritative name servers — among them ns1ak.dell.com, ns1ns.dell.com, ns2ak.dell.com and 5 others.

The name servers of contentblocker.com overlap at least partially with those of other domains — among them automatepci.com, tablus.com, vcesupport.com and two more.

These name servers are routinely co-deployed with the name servers ns2ns.dell.com, ns3ak.dell.com, ns3ns.dell.com and two others.

Hosts with two IP numbers each:

ns1ns.dell.com resolves to two addresses: 162.159.9.149 and 2400:cb00:2049:1::a29f:995.

ns2ak.dell.com resolves to two addresses: 96.7.49.65 and 2600:1408:1c::41.

ns2ns.dell.com resolves to two addresses: 198.41.223.90 and 2400:cb00:2049:1::c629:df5a.

ns3ak.dell.com resolves to two addresses: 23.211.133.64 and 2600:1401:1::40.

ns3ns.dell.com resolves to two addresses: 162.159.9.149 and 2400:cb00:2049:1::a29f:995.

ns4ak.dell.com resolves to two addresses: 184.85.248.65 and 2a02:26f0:117::41.

ns4ns.dell.com resolves to two addresses: 198.41.223.90 and 2400:cb00:2049:1::c629:df5a.

Hosts that resolve to one IP address:

The hostname ns1ak.dell.com resolves to 193.108.91.65.

ns1ns.dell.com along with ns3ns.dell.com each resolve to 2400:cb00:2049:1::a29f:995 IP addresses.

ns1ns.dell.com along with ns3ns.dell.com each resolve to 162.159.9.149 IP addresses.

ns2ns.dell.com along with ns4ns.dell.com each resolve to 2400:cb00:2049:1::c629:df5a IP addresses.

ns2ns.dell.com along with ns4ns.dell.com each resolve to 198.41.223.90 IP addresses.

contentblocker.com - robtex.com