instructing.com - dns.ninja

`instructing.com`

DNSSEC	⚠️ Not signed
A	3.33.251.168^{🇺🇸 Amazon3.33.240.0/20}
		PTR	`aec037177372cc6cd.awsglobalaccelerator.com`
A	15.197.225.128^{🇺🇸 Amazon15.197.224.0/20}
NS	`ns05.domaincontrol.com` ⭐
		A	2603:5:2160::3^{🇺🇸 GODADDY-DNS2603:5:2160::/44}
			PTR	`ns05.domaincontrol.com`
		A	97.74.102.3^{🇺🇸 GODADDY-DNS97.74.102.0/23}
			PTR	`ns05.domaincontrol.com`
NS	`ns06.domaincontrol.com`
		A	2603:5:2260::3^{🇺🇸 GODADDY-DNS2603:5:2260::/44}
			PTR	`ns06.domaincontrol.com`
		A	173.201.70.3^{🇺🇸 GODADDY-DNS173.201.70.0/23}
			PTR	`ns06.domaincontrol.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1d::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f27.1e100.net`
		A	142.250.31.27^{🇺🇸 Google142.250.31.0/24}
			PTR	`bj-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`v=spf1 include:_spf.google.com ~all`
TXT	`google-site-verification=ptQaOaOlw2mJzonQQp8V2cTtgSblc7733Vt5q_tzMdE`
SOA	`ns05.domaincontrol.com`dns@jomax.net 2026-05-08 #1

`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=1783168871

WOT: SAFE (68/100)

Same first word

instructing.com

instructing.de

instructing.com.au

instructing.ru

DNS History

17 records (9 active, 8 former)

●NSns05.domaincontrol.com2026-06-06 → 2026-07-04 · 3 obs

○ 2017-02-05 10:24:30
● 2026-06-06 02:34:48
● 2026-07-04 12:54:16

●NSns06.domaincontrol.com2026-06-06 → 2026-07-04 · 3 obs

○ 2017-02-05 10:24:30
● 2026-06-06 02:34:48
● 2026-07-04 12:54:16

○NSns1.bluehost.com2015-08-01 → 2017-02-05 · 5 obs

○ 2007-10-22 21:25:24
● 2015-08-01 18:22:50
● 2017-02-05 10:24:30
○ 2026-06-06 02:34:48
○ 2026-07-04 12:54:16

○NSns1.netnation.com2007-10-22 → 2007-10-22 · 3 obs

● 2007-10-22 21:25:24
○ 2015-08-01 18:22:50
○ 2026-07-04 12:54:16

○NSns2.bluehost.com2015-08-01 → 2017-02-05 · 5 obs

○ 2007-10-22 21:25:24
● 2015-08-01 18:22:50
● 2017-02-05 10:24:30
○ 2026-06-06 02:34:48
○ 2026-07-04 12:54:16

○NSns2.netnation.com2007-10-22 → 2007-10-22 · 3 obs

● 2007-10-22 21:25:24
○ 2015-08-01 18:22:50
○ 2026-07-04 12:54:16

●MXalt1.aspmx.l.google.com2026-06-06 → 2026-07-04 · 3 obs

○ 2017-02-05 10:24:30
● 2026-06-06 02:34:48
● 2026-07-04 12:54:16

●MXalt2.aspmx.l.google.com2026-06-06 → 2026-07-04 · 3 obs

○ 2017-02-05 10:24:30
● 2026-06-06 02:34:48
● 2026-07-04 12:54:16

●MXalt3.aspmx.l.google.com2026-06-06 → 2026-07-04 · 3 obs

○ 2017-02-05 10:24:30
● 2026-06-06 02:34:48
● 2026-07-04 12:54:16

●MXalt4.aspmx.l.google.com2026-06-06 → 2026-07-04 · 3 obs

○ 2017-02-05 10:24:30
● 2026-06-06 02:34:48
● 2026-07-04 12:54:16

●MXaspmx.l.google.com2026-06-06 → 2026-07-04 · 3 obs

○ 2017-02-05 10:24:30
● 2026-06-06 02:34:48
● 2026-07-04 12:54:16

○MXmail.instructing.com2015-08-01 → 2017-02-05 · 5 obs

○ 2007-10-22 21:25:24
● 2015-08-01 18:22:50
● 2017-02-05 10:24:30
○ 2026-06-06 02:34:48
○ 2026-07-04 12:54:16

○MXsmtp.instructing.com2007-10-22 → 2007-10-22 · 3 obs

● 2007-10-22 21:25:24
○ 2015-08-01 18:22:50
○ 2026-07-04 12:54:16

●A15.197.225.1282026-06-06 → 2026-07-04 · 3 obs

○ 2017-02-05 10:24:30
● 2026-06-06 02:34:48
● 2026-07-04 12:54:16

●A3.33.251.1682026-06-06 → 2026-07-04 · 3 obs

○ 2017-02-05 10:24:30
● 2026-06-06 02:34:48
● 2026-07-04 12:54:16

○A66.113.136.2252007-10-22 → 2007-10-22 · 3 obs

● 2007-10-22 21:25:24
○ 2015-08-01 18:22:50
○ 2026-07-04 12:54:16

○A66.147.244.902015-08-01 → 2017-02-05 · 5 obs

○ 2007-10-22 21:25:24
● 2015-08-01 18:22:50
● 2017-02-05 10:24:30
○ 2026-06-06 02:34:48
○ 2026-07-04 12:54:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
instructing.com	ns05.domaincontrol.com, ns06.domaincontrol.com	4 records

✅ Authoritative Response

Server:97.74.102.3

NS records: ns05.domaincontrol.com, ns06.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for instructing.com (unsigned zone)

⏱️ Timing

Total: 251ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`15.197.225.128, 3.33.251.168`
NS	2	`ns05.domaincontrol.com, ns06.domaincontrol.com`
MX	5	`aspmx.l.google.com (pri: 1), alt1.aspmx.l.google.com (pri: 5)...`
TXT	2	`v=spf1 include:_spf.google.com ~all, google-site-verification=ptQaOaOlw2mJzon`
SOA	1	`ns05.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns05.domaincontrol.com, ns05.domaincontrol.com, ns06.domaincontrol.com...)

Analysis

IP Addresses

instructing.com directs to two IP numbers, 3.33.251.168 and 15.197.225.128

Additional host names — genieleader.com, edtechxeurope.com, bcso-ma.com and two others — share IP numbers with instructing.com.

Name Servers

DNS delegation for instructing.com points to two name servers: ns05.domaincontrol.com and ns06.domaincontrol.com.

instructing.com shares its name server setup with other domains, including csophia.com, virtualnotdistant.com, pro-tected.com and two others.

ns05.domaincontrol.com directs to 97.74.102.3 and 2603:5:2160::3. ns06.domaincontrol.com directs to 173.201.70.3 and 2603:5:2260::3. Each host name carries two IP addresses.

Mail Servers

Mail for instructing.com is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

instructing.com shares mail servers — at least in part — with other domains, including ns500765.ns500693.ns500693.ns500699.ns500699.ns500693.ns500699.ns500693.ns500699.ns500734.ns500588.ns500699.ns500588.ns500588.ns500588.ns500588.ns500588.dtrkdll.com, ns500754.ns500731.ns500742.ns500731.ns500704.ns500678.ns500688.ns500678.ns500649.ns500666.ns500653.ns500153.tenderladiesbz.com, ns500698.ns500698.ns500759.ns500758.ns500698.ns500735.ns500736.ns500735.ns500735.ns500736.ns500735.ns500698.ns500708.ns500698.ns500652.trackreceptor.com and two others.

These mail servers are frequently paired with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com has two IP addresses: 142.250.31.27 and 2607:f8b0:4004:c1d::1b.

alt1.aspmx.l.google.com has two IP addresses: 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com has two IP addresses: 172.253.116.27 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com has two IP addresses: 192.178.223.27 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com has two IP addresses: 172.253.157.26 and 2a00:1450:400c:c23::1b.