classk12.com - dns.ninja

`classk12.com`

DNSSEC	⚠️ Not signed
NS	`ns-841.awsdns-41.net` ⭐
		A	2600:9000:5303:4900::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-841.awsdns-41.net`
		A	205.251.195.73^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-841.awsdns-41.net`
NS	`ns-1208.awsdns-23.org`
		A	2600:9000:5304:b800::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1208.awsdns-23.org`
		A	205.251.196.184^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1208.awsdns-23.org`
NS	`ns-2039.awsdns-62.co.uk`
		A	2600:9000:5307:f700::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-2039.awsdns-62.co.uk`
		A	205.251.199.247^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-2039.awsdns-62.co.uk`
NS	`ns-76.awsdns-09.com`
		A	2600:9000:5300:4c00::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-76.awsdns-09.com`
		A	205.251.192.76^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-76.awsdns-09.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c08::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f26.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f26.1e100.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::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`google-site-verification=fTQ_Ys5iSKYHv3LPpHExiij-0lr1jvPeSgNp02XJZ9k`
SOA	`ns-841.awsdns-41.net`awsdns-hostmaster@amazon.com serial=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=1786671519

Same first word

classk12.net

classk12.com

Similar names

k12class.com

DNS History

18 records (9 active, 9 former)

●NSns-1208.awsdns-23.org2016-12-15 → 2026-08-14 · 2 obs

● 2016-12-15 12:43:40
● 2026-08-14 02:01:58

●NSns-2039.awsdns-62.co.uk2016-12-15 → 2026-08-14 · 2 obs

● 2016-12-15 12:43:40
● 2026-08-14 02:01:58

●NSns-76.awsdns-09.com2016-12-15 → 2026-08-14 · 2 obs

● 2016-12-15 12:43:40
● 2026-08-14 02:01:58

●NSns-841.awsdns-41.net2016-12-15 → 2026-08-14 · 2 obs

● 2016-12-15 12:43:40
● 2026-08-14 02:01:58

●MXalt1.aspmx.l.google.com2016-12-15 → 2026-08-14 · 2 obs

● 2016-12-15 12:43:40
● 2026-08-14 02:01:58

●MXalt2.aspmx.l.google.com2016-12-15 → 2026-08-14 · 2 obs

● 2016-12-15 12:43:40
● 2026-08-14 02:01:58

●MXalt3.aspmx.l.google.com2016-12-15 → 2026-08-14 · 2 obs

● 2016-12-15 12:43:40
● 2026-08-14 02:01:58

●MXalt4.aspmx.l.google.com2016-12-15 → 2026-08-14 · 2 obs

● 2016-12-15 12:43:40
● 2026-08-14 02:01:58

●MXaspmx.l.google.com2016-12-15 → 2026-08-14 · 2 obs

● 2016-12-15 12:43:40
● 2026-08-14 02:01:58

○A52.219.20.472017-09-07 → 2017-09-07 · 4 obs

○ 2016-12-15 12:43:40
● 2017-09-07 09:16:22
○ 2026-04-17 12:15:56
○ 2026-08-14 02:01:58

○A52.219.20.72017-09-07 → 2017-09-07 · 4 obs

○ 2016-12-15 12:43:40
● 2017-09-07 09:16:22
○ 2026-04-17 12:15:56
○ 2026-08-14 02:01:58

○A52.219.24.72017-09-07 → 2017-09-07 · 4 obs

○ 2016-12-15 12:43:40
● 2017-09-07 09:16:22
○ 2026-04-17 12:15:56
○ 2026-08-14 02:01:58

○A52.219.28.152017-09-07 → 2017-09-07 · 4 obs

○ 2016-12-15 12:43:40
● 2017-09-07 09:16:22
○ 2026-04-17 12:15:56
○ 2026-08-14 02:01:58

○A52.219.28.272017-09-07 → 2017-09-07 · 4 obs

○ 2016-12-15 12:43:40
● 2017-09-07 09:16:22
○ 2026-04-17 12:15:56
○ 2026-08-14 02:01:58

○A54.231.235.262017-09-07 → 2017-09-07 · 4 obs

○ 2016-12-15 12:43:40
● 2017-09-07 09:16:22
○ 2026-04-17 12:15:56
○ 2026-08-14 02:01:58

○A54.231.235.422017-09-07 → 2017-09-07 · 4 obs

○ 2016-12-15 12:43:40
● 2017-09-07 09:16:22
○ 2026-04-17 12:15:56
○ 2026-08-14 02:01:58

○A54.231.236.462016-12-15 → 2016-12-15 · 3 obs

● 2016-12-15 12:43:40
○ 2017-09-07 09:16:22
○ 2026-08-14 02:01:58

○A54.231.237.302017-09-07 → 2017-09-07 · 4 obs

○ 2016-12-15 12:43:40
● 2017-09-07 09:16:22
○ 2026-04-17 12:15:56
○ 2026-08-14 02:01:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
classk12.com	ns-76.awsdns-09.com, ns-841.awsdns-41.net, ns-1208.awsdns-23.org, ns-2039.awsdns-62.co.uk	2 records

✅ Authoritative Response

Server:205.251.196.184

NS records: ns-76.awsdns-09.com, ns-841.awsdns-41.net, ns-1208.awsdns-23.org, ns-2039.awsdns-62.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classk12.com (unsigned zone)

⏱️ Timing

Total: 377ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns-1208.awsdns-23.org, ns-2039.awsdns-62.co.uk...`
MX	5	`aspmx.l.google.com (pri: 0), alt3.aspmx.l.google.com (pri: 10)...`
TXT	1	`google-site-verification=fTQ_Ys5iSKYHv3L`
SOA	1	`ns-841.awsdns-41.net awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-76.awsdns-09.com, ns-76.awsdns-09.com)

Analysis

Name Servers

Four name servers handle the delegation for classk12.com: ns-76.awsdns-09.com, ns-841.awsdns-41.net, ns-1208.awsdns-23.org and ns-2039.awsdns-62.co.uk.

classk12.com shares at least some of its name servers with other domains, including unityscm.com, user.jatri.co, bonikacaroline.com and two others.

The host names ns-76.awsdns-09.com, ns-841.awsdns-41.net, ns-1208.awsdns-23.org and ns-2039.awsdns-62.co.uk each resolve to two IP addresses: ns-76.awsdns-09.com resolves to 205.251.192.76 and 2600:9000:5300:4c00::1; ns-841.awsdns-41.net resolves to 205.251.195.73 and 2600:9000:5303:4900::1; ns-1208.awsdns-23.org resolves to 205.251.196.184 and 2600:9000:5304:b800::1; ns-2039.awsdns-62.co.uk resolves to 205.251.199.247 and 2600:9000:5307:f700::1.

Mail Servers

Mail for classk12.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.

At least some of the mail servers used by classk12.com are shared with other domains: productcampaustin.org, ns500671.ns500671.ns500754.ns500731.ns500742.ns500754.ns500671.ns500742.ns500688.ns500705.ns500649.ns500649.ns500688.ns500671.ns500649.lustychickser.com, ns500693.ns500699.ns500699.ns500693.ns500693.ns500734.ns500693.ns500699.ns500699.ns500693.ns500699.ns500693.ns500588.ns500588.ns500602.ns500578.ns500110.dtrkdll.com and two others among them.

These mail servers often appear in conjunction with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names pointing to two IP addresses:

The A records for aspmx.l.google.com return 192.178.155.26 and 2607:f8b0:4004:c08::1a.

The A records for alt1.aspmx.l.google.com return 192.178.234.26 and 2800:3f0:4003:c14::1b.

The A records for alt2.aspmx.l.google.com return 172.253.116.27 and 2a00:1450:400b:c02::1b.

The A records for alt3.aspmx.l.google.com return 192.178.223.26 and 2a00:1450:4009:c0f::1a.

The A records for alt4.aspmx.l.google.com return 172.253.157.27 and 2a00:1450:400c:c23::1a.