contentblocker.com - dns.ninja

`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}
			PTR	`a3-65.akam.net`
			PTR	`ns7-65.akam.net`
			PTR	`use3.akam.net`
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=1783932237

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
○ 2026-07-13 09:11:04

○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
○ 2026-07-13 09:11:04

○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
○ 2026-07-13 09:11:04

○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
○ 2026-07-13 09:11:04

●NSns1ak.dell.com2026-06-20 → 2026-07-13 · 3 obs

○ 2017-03-26 16:54:28
● 2026-06-20 21:21:36
● 2026-07-13 09:11:04

●NSns1ns.dell.com2026-06-20 → 2026-07-13 · 3 obs

○ 2017-03-26 16:54:28
● 2026-06-20 21:21:36
● 2026-07-13 09:11:04

●NSns2ak.dell.com2026-06-20 → 2026-07-13 · 3 obs

○ 2017-03-26 16:54:28
● 2026-06-20 21:21:36
● 2026-07-13 09:11:04

●NSns2ns.dell.com2026-06-20 → 2026-07-13 · 3 obs

○ 2017-03-26 16:54:28
● 2026-06-20 21:21:36
● 2026-07-13 09:11:04

●NSns3ak.dell.com2026-06-20 → 2026-07-13 · 3 obs

○ 2017-03-26 16:54:28
● 2026-06-20 21:21:36
● 2026-07-13 09:11:04

●NSns3ns.dell.com2026-06-20 → 2026-07-13 · 3 obs

○ 2017-03-26 16:54:28
● 2026-06-20 21:21:36
● 2026-07-13 09:11:04

●NSns4ak.dell.com2026-06-20 → 2026-07-13 · 3 obs

○ 2017-03-26 16:54:28
● 2026-06-20 21:21:36
● 2026-07-13 09:11:04

●NSns4ns.dell.com2026-06-20 → 2026-07-13 · 3 obs

○ 2017-03-26 16:54:28
● 2026-06-20 21:21:36
● 2026-07-13 09:11:04

○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
○ 2026-07-13 09:11:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.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:162.159.9.149

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: 120ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	8	`ns4ns.dell.com, ns2ns.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 carries NS records listing 8 name servers — ns1ak.dell.com, ns1ns.dell.com, ns2ak.dell.com and 5 others.

contentblocker.com shares at least some of its name servers with other domains, including automatepci.com, tablus.com, vcesupport.com and two others.

It is common to find these name servers alongside the name servers ns2ns.dell.com, ns3ak.dell.com, ns3ns.dell.com and two others.

Hostnames that resolve to two IP addresses:

The A records for ns1ns.dell.com return 162.159.9.149 and 2400:cb00:2049:1::a29f:995.

The A records for ns2ak.dell.com return 96.7.49.65 and 2600:1408:1c::41.

The A records for ns2ns.dell.com return 198.41.223.90 and 2400:cb00:2049:1::c629:df5a.

The A records for ns3ak.dell.com return 23.211.133.64 and 2600:1401:1::40.

The A records for ns3ns.dell.com return 162.159.9.149 and 2400:cb00:2049:1::a29f:995.

The A records for ns4ak.dell.com return 184.85.248.65 and 2a02:26f0:117::41.

The A records for ns4ns.dell.com return 198.41.223.90 and 2400:cb00:2049:1::c629:df5a.

Hosts with just one IP address:

ns1ak.dell.com resolves to the IP address 193.108.91.65.

ns1ns.dell.com and ns3ns.dell.com each have 2400:cb00:2049:1::a29f:995 IP addresses.