sch.com - dns.ninja

`sch.com`

DNSSEC	⚠️ Not signed
A	168.159.218.91^{🇺🇸 UNSPECIFIED160.0.0.0/3}
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 2024-06-21 #24

`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=1783833742

WOT: SAFE (62/100)

Same first word

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sch.es

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sch.sk

sch.hs.kr

sch.academy

sch.edgesuite.net

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sch.asia

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chs.edu.au

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hcs.se

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chs.at

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csh.cl

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hsc.com.ar

csh.no

hsc.cz

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chs.com.my

DNS History

17 records (9 active, 8 former)

○NSemcns3.emc.com2015-07-12 → 2021-04-24 · 4 obs

● 2015-07-12 06:53:20
● 2021-04-24 02:50:48
○ 2026-02-21 14:08:38
○ 2026-07-12 05:44:16

○NSemcns4.emc.com2015-07-12 → 2021-04-24 · 4 obs

● 2015-07-12 06:53:20
● 2021-04-24 02:50:48
○ 2026-02-21 14:08:38
○ 2026-07-12 05:44:16

○NSemcns6.emc.com2015-07-12 → 2021-04-24 · 4 obs

● 2015-07-12 06:53:20
● 2021-04-24 02:50:48
○ 2026-02-21 14:08:38
○ 2026-07-12 05:44:16

○NSemcns7.emc.com2015-07-12 → 2021-04-24 · 4 obs

● 2015-07-12 06:53:20
● 2021-04-24 02:50:48
○ 2026-02-21 14:08:38
○ 2026-07-12 05:44:16

○NSemcns8.emc.com2020-04-08 → 2021-04-24 · 5 obs

○ 2017-10-17 11:05:20
● 2020-04-08 04:44:48
● 2021-04-24 02:50:48
○ 2026-02-21 14:08:38
○ 2026-07-12 05:44:16

○NSgw.emc.com2015-07-12 → 2021-04-24 · 4 obs

● 2015-07-12 06:53:20
● 2021-04-24 02:50:48
○ 2026-02-21 14:08:38
○ 2026-07-12 05:44:16

○NSns0.emc.com2015-07-12 → 2021-04-24 · 6 obs

● 2015-07-12 06:53:20
● 2017-10-17 11:05:20
○ 2020-04-08 04:44:48
● 2021-04-24 02:50:48
○ 2026-02-21 14:08:38
○ 2026-07-12 05:44:16

●NSns1ak.dell.com2026-02-21 → 2026-07-12 · 3 obs

○ 2021-04-24 02:50:48
● 2026-02-21 14:08:38
● 2026-07-12 05:44:16

●NSns1ns.dell.com2026-02-21 → 2026-07-12 · 3 obs

○ 2021-04-24 02:50:48
● 2026-02-21 14:08:38
● 2026-07-12 05:44:16

●NSns2ak.dell.com2026-02-21 → 2026-07-12 · 3 obs

○ 2021-04-24 02:50:48
● 2026-02-21 14:08:38
● 2026-07-12 05:44:16

●NSns2ns.dell.com2026-02-21 → 2026-07-12 · 3 obs

○ 2021-04-24 02:50:48
● 2026-02-21 14:08:38
● 2026-07-12 05:44:16

●NSns3ak.dell.com2026-02-21 → 2026-07-12 · 3 obs

○ 2021-04-24 02:50:48
● 2026-02-21 14:08:38
● 2026-07-12 05:44:16

●NSns3ns.dell.com2026-02-21 → 2026-07-12 · 3 obs

○ 2021-04-24 02:50:48
● 2026-02-21 14:08:38
● 2026-07-12 05:44:16

●NSns4ak.dell.com2026-02-21 → 2026-07-12 · 3 obs

○ 2021-04-24 02:50:48
● 2026-02-21 14:08:38
● 2026-07-12 05:44:16

●NSns4ns.dell.com2026-02-21 → 2026-07-12 · 3 obs

○ 2021-04-24 02:50:48
● 2026-02-21 14:08:38
● 2026-07-12 05:44:16

○A168.159.208.552017-01-27 → 2017-10-17 · 5 obs

○ 2016-10-04 08:07:20
● 2017-01-27 04:04:22
● 2017-10-17 11:05:20
○ 2020-04-08 04:44:48
○ 2026-07-12 05:44:16

●A168.159.218.912015-07-12 → 2026-07-12 · 6 obs

● 2015-07-12 06:53:20
● 2016-10-04 08:07:20
○ 2017-01-27 04:04:22
○ 2017-10-17 11:05:20
● 2020-04-08 04:44:48
● 2026-07-12 05:44:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, h.gtld-servers.net, c.gtld-servers.net, a.gtld-servers.net...	-
sch.com	ns1ak.dell.com, ns2ak.dell.com, ns3ak.dell.com, ns1ns.dell.com...	9 records

✅ Authoritative Response

Server:23.211.133.64

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 sch.com (unsigned zone)

⏱️ Timing

Total: 193ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`168.159.218.91`
NS	8	`ns1ak.dell.com, ns2ak.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

IP Addresses

sch.com points to a single IP number: 168.159.218.91.

Additional host names — wysdm.com, vivaecn.com, avamar.com and two others — share IP numbers with sch.com.

Name Servers

The DNS delegation for sch.com covers 8 name servers: ns1ak.dell.com, ns1ns.dell.com, ns2ak.dell.com and 5 more.

The name servers of sch.com overlap at least partially with those of other domains — among them globalinformationwatch.com, dell.ky, alienware.co.in and two more.

These name servers are frequently paired with the name servers ns3ak.dell.com, ns2ns.dell.com, ns3ns.dell.com and two others.

Host names with two IP numbers:

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

ns2ak.dell.com maps to two IP addresses — 96.7.49.65 and 2600:1408:1c::41.

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

ns3ak.dell.com maps to two IP addresses — 23.211.133.64 and 2600:1401:1::40.

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

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

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

Host names pointing to a single IP address:

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

These two host names — ns1ns.dell.com and ns3ns.dell.com — each point to 2400:cb00:2049:1::a29f:995 IP addresses.

These two host names — ns1ns.dell.com and ns3ns.dell.com — each point to 162.159.9.149 IP addresses.

These two host names — ns2ns.dell.com and ns4ns.dell.com — each point to 2400:cb00:2049:1::c629:df5a IP addresses.

These two host names — ns2ns.dell.com and ns4ns.dell.com — each point to 198.41.223.90 IP addresses.