class101.com - dns.ninja

`class101.com`

DNSSEC	⚠️ Not signed
A	141.193.213.20^{🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US}
A	141.193.213.21^{🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US}
NS	`ns27.domaincontrol.com` ⭐
		A	2603:5:2171::e^{🇺🇸 GODADDY-DNS2603:5:2170::/44}
			PTR	`ns27.domaincontrol.com`
		A	97.74.103.14^{🇺🇸 GODADDY-DNS97.74.102.0/23}
			PTR	`ns27.domaincontrol.com`
NS	`ns28.domaincontrol.com`
		A	2603:5:2271::e^{🇺🇸 GODADDY-DNS2603:5:2270::/44}
			PTR	`ns28.domaincontrol.com`
		A	173.201.71.14^{🇺🇸 GODADDY-DNS173.201.70.0/23}
			PTR	`ns28.domaincontrol.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c21::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pe-in-f26.1e100.net`
		A	142.251.111.26^{🇺🇸 Google142.251.111.0/24}
			PTR	`bk-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽³⁰⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`aspmx2.googlemail.com`⁽⁴⁰⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`aspmx3.googlemail.com`⁽⁵⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
TXT	`box-domain-verification=370ce76948848e112b3fc58c4dff118ab6cbc13c5fa9327c52835...`
TXT	`knowbe4-site-verification=c4133e55ea8542f319d0a0ef8d6caa24`
TXT	`google-site-verification=pzBlsR7D-N8d1sb6H9by8C(0x787878)Fo7SOi02ytTA7_R6SM`
TXT	`google-site-verification=K1fFguTZvkdBhlsWuh7zgHNfnnft4Fkcuc7-L2Z6Dag`
SOA	`ns27.domaincontrol.com`dns@jomax.net 2026-04-14 #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=1785782127

rank #776856 globally
rank #327782 in the tld

Same first word

class101.app

class101.org

class101.co

class101.us

class101.net

class101.com

class101.jp

Similar names

101class.net

101class.com

110class.com

DNS History

17 records (9 active, 8 former)

○NSns1.commonmx.com2016-04-02 → 2016-04-02 · 4 obs

○ 2016-02-12 18:29:38
● 2016-04-02 03:21:54
○ 2016-06-10 03:31:50
○ 2026-08-03 19:03:16

○NSns2.commonmx.com2016-04-02 → 2016-04-02 · 4 obs

○ 2016-02-12 18:29:38
● 2016-04-02 03:21:54
○ 2016-06-10 03:31:50
○ 2026-08-03 19:03:16

●NSns27.domaincontrol.com2026-03-14 → 2026-08-03 · 3 obs

○ 2016-11-17 15:43:08
● 2026-03-14 07:33:30
● 2026-08-03 19:03:16

●NSns28.domaincontrol.com2026-03-14 → 2026-08-03 · 3 obs

○ 2016-11-17 15:43:08
● 2026-03-14 07:33:30
● 2026-08-03 19:03:16

○NSsk.s5.cm.ns1.88.ztomy.com2015-07-23 → 2016-11-17 · 7 obs

● 2015-07-23 19:05:24
● 2016-02-12 18:29:38
○ 2016-04-02 03:21:54
● 2016-06-10 03:31:50
● 2016-11-17 15:43:08
○ 2026-03-14 07:33:30
○ 2026-08-03 19:03:16

○NSsk.s5.cm.ns2.88.ztomy.com2015-07-23 → 2016-11-17 · 7 obs

● 2015-07-23 19:05:24
● 2016-02-12 18:29:38
○ 2016-04-02 03:21:54
● 2016-06-10 03:31:50
● 2016-11-17 15:43:08
○ 2026-03-14 07:33:30
○ 2026-08-03 19:03:16

●MXalt1.aspmx.l.google.com2026-03-14 → 2026-08-03 · 3 obs

○ 2015-11-21 06:49:44
● 2026-03-14 07:33:30
● 2026-08-03 19:03:16

●MXalt2.aspmx.l.google.com2026-03-14 → 2026-08-03 · 3 obs

○ 2015-11-21 06:49:44
● 2026-03-14 07:33:30
● 2026-08-03 19:03:16

●MXaspmx.l.google.com2026-03-14 → 2026-08-03 · 3 obs

○ 2015-11-21 06:49:44
● 2026-03-14 07:33:30
● 2026-08-03 19:03:16

●MXaspmx2.googlemail.com2026-03-14 → 2026-08-03 · 3 obs

○ 2015-11-21 06:49:44
● 2026-03-14 07:33:30
● 2026-08-03 19:03:16

●MXaspmx3.googlemail.com2026-03-14 → 2026-08-03 · 3 obs

○ 2015-11-21 06:49:44
● 2026-03-14 07:33:30
● 2026-08-03 19:03:16

○MXmail.b-io.co2015-07-23 → 2015-07-23 · 3 obs

● 2015-07-23 19:05:24
○ 2015-11-21 06:49:44
○ 2026-08-03 19:03:16

●A141.193.213.202026-03-14 → 2026-08-03 · 3 obs

○ 2016-11-17 15:43:08
● 2026-03-14 07:33:30
● 2026-08-03 19:03:16

●A141.193.213.212026-03-14 → 2026-08-03 · 3 obs

○ 2016-11-17 15:43:08
● 2026-03-14 07:33:30
● 2026-08-03 19:03:16

○A141.8.225.672015-07-23 → 2016-11-17 · 7 obs

● 2015-07-23 19:05:24
● 2016-02-12 18:29:38
○ 2016-04-02 03:21:54
● 2016-06-10 03:31:50
● 2016-11-17 15:43:08
○ 2026-03-14 07:33:30
○ 2026-08-03 19:03:16

○A149.56.9.682016-04-02 → 2016-04-02 · 4 obs

○ 2016-02-12 18:29:38
● 2016-04-02 03:21:54
○ 2016-06-10 03:31:50
○ 2026-08-03 19:03:16

○PTRsk.s5.cm.ns1.88.ztomy.com2016-11-17 → 2016-11-17 · 3 obs

● 2016-11-17 15:43:08
○ 2026-03-14 07:33:30
○ 2026-08-03 19:03:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, m.gtld-servers.net, l.gtld-servers.net, k.gtld-servers.net...	-
class101.com	ns27.domaincontrol.com, ns28.domaincontrol.com	4 records

✅ Authoritative Response

Server:173.201.71.14

NS records: ns27.domaincontrol.com, ns28.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for class101.com (unsigned zone)

⏱️ Timing

Total: 420ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`141.193.213.21, 141.193.213.20`
NS	2	`ns27.domaincontrol.com, ns28.domaincontrol.com`
MX	5	`alt1.aspmx.l.google.com (pri: 20), aspmx.l.google.com (pri: 10)...`
TXT	4	`box-domain-verification=370ce76948848e11, knowbe4-site-verification=c4133e55ea8542...`
SOA	1	`ns27.domaincontrol.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns27.domaincontrol.com, ns27.domaincontrol.com, ns28.domaincontrol.com...)

Analysis

IP Addresses

class101.com resolves to the IP addresses 141.193.213.20 and 141.193.213.21

Two other host names, along with homeschools.org, tursagroup.com and samfit.org, also share IP numbers with class101.com.

Name Servers

class101.com has two authoritative name servers — ns27.domaincontrol.com and ns28.domaincontrol.com.

class101.com shares its NS records with other domains, for example adultpay.co, huntat.com, mail.bet-mail.com and two others.

Both ns27.domaincontrol.com and ns28.domaincontrol.com have two IP addresses each. ns27.domaincontrol.com resolves to 97.74.103.14 and 2603:5:2171::e; ns28.domaincontrol.com resolves to 173.201.71.14 and 2603:5:2271::e.

Mail Servers

class101.com is handled by five mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.

There is at least a partial MX overlap between class101.com and other domains, including turboo.com, segelflugverein-bielefeld.de, koor.ee and two others.

These mail servers tend to appear in combination with mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 others.

Host names that have two IP addresses:

aspmx2.googlemail.com resolves to 108.177.123.27 and 2800:3f0:4003:c0f::1b.

aspmx3.googlemail.com resolves to 172.253.116.27 and 2a00:1450:400b:c02::1a.

aspmx.l.google.com resolves to 142.251.111.26 and 2607:f8b0:4004:c21::1a.

alt1.aspmx.l.google.com resolves to 108.177.123.26 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com resolves to 172.253.116.26 and 2a00:1450:400b:c02::1b.