class101.com - robtex.com

class101.com

DNSSEC⚠️ Not signed
A141.193.213.20🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US
A141.193.213.21🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US
NSns27.domaincontrol.com ⭐
A2603:5:2171::e🇺🇸 GODADDY-DNS2603:5:2170::/44
PTRns27.domaincontrol.com
A97.74.103.14🇺🇸 GODADDY-DNS97.74.102.0/23
PTRns27.domaincontrol.com
NSns28.domaincontrol.com
A2603:5:2271::e🇺🇸 GODADDY-DNS2603:5:2270::/44
PTRns28.domaincontrol.com
A173.201.71.14🇺🇸 GODADDY-DNS173.201.70.0/23
PTRns28.domaincontrol.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c19::1b🇺🇸 Google2607:f8b0:4004::/48
PTRbk-in-f27.1e100.net
A172.253.62.27🇺🇸 Google172.253.62.0/24
PTRbc-in-f27.1e100.net
MXalt1.aspmx.l.google.com(20)
A2607:f8b0:4003:c30::1b🇺🇸 Google2607:f8b0:4003::/48
PTRyutulis-in-f27.1e100.net
A74.125.27.26🇺🇸 Google74.125.27.0/24
PTRyutulis-in-f26.1e100.net
MXalt2.aspmx.l.google.com(30)
A2607:f8b0:4001:c70::1a🇺🇸 Google2607:f8b0:4001::/48
PTRyucbful-in-f26.1e100.net
A192.178.209.26🇺🇸 Google192.178.209.0/24
PTRyucbful-in-f26.1e100.net
MXaspmx2.googlemail.com(40)
A2607:f8b0:4023:2801::1b🇺🇸 Google2607:f8b0::/32
PTRlcausi-in-f27.1e100.net
A192.178.128.27🇺🇸 Google192.178.128.0/24
PTRlcausi-in-f27.1e100.net
MXaspmx3.googlemail.com(50)
A2607:f8b0:4023:1015::1b🇺🇸 Google2607:f8b0::/32
PTRyudfwta-in-f27.1e100.net
A172.253.135.26🇺🇸 Google172.253.135.0/24
PTRyudfwta-in-f26.1e100.net
TXTbox-domain-verification=370ce76948848e112b3fc58c4dff118ab6cbc13c5fa9327c52835...
TXTknowbe4-site-verification=c4133e55ea8542f319d0a0ef8d6caa24
TXTgoogle-site-verification=pzBlsR7D-N8d1sb6H9by8C(0x787878)Fo7SOi02ytTA7_R6SM
TXTgoogle-site-verification=K1fFguTZvkdBhlsWuh7zgHNfnnft4Fkcuc7-L2Z6Dag
SOAns27.domaincontrol.comdns@jomax.net 2024-05-02 #0

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1771291435
rank #846852 globally
rank #386130 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)

20162017201820192020202120222023202420252026NSns27.domaincontrol.comns28.domaincontrol.comns1.commonmx.comns2.commonmx.comsk.s5.cm.ns1.88.ztomy.comsk.s5.cm.ns2.88.ztomy.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.commail.b-io.coA141.193.213.20141.193.213.21141.8.225.67149.56.9.68PTRsk.s5.cm.ns1.88.ztomy.com
○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
○ 2026-03-18 21:44:20
○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
○ 2026-03-18 21:44:20
●NSns27.domaincontrol.com2026-03-14 → 2026-03-18 · 3 obs
○ 2016-11-17 15:43:08
● 2026-03-14 07:33:30
● 2026-03-18 21:44:20
●NSns28.domaincontrol.com2026-03-14 → 2026-03-18 · 3 obs
○ 2016-11-17 15:43:08
● 2026-03-14 07:33:30
● 2026-03-18 21:44:20
○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
○ 2026-03-18 21:44:20
○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
○ 2026-03-18 21:44:20
●MXalt1.aspmx.l.google.com2026-03-14 → 2026-03-18 · 3 obs
○ 2015-11-21 06:49:44
● 2026-03-14 07:33:30
● 2026-03-18 21:44:20
●MXalt2.aspmx.l.google.com2026-03-14 → 2026-03-18 · 3 obs
○ 2015-11-21 06:49:44
● 2026-03-14 07:33:30
● 2026-03-18 21:44:20
●MXaspmx.l.google.com2026-03-14 → 2026-03-18 · 3 obs
○ 2015-11-21 06:49:44
● 2026-03-14 07:33:30
● 2026-03-18 21:44:20
●MXaspmx2.googlemail.com2026-03-14 → 2026-03-18 · 3 obs
○ 2015-11-21 06:49:44
● 2026-03-14 07:33:30
● 2026-03-18 21:44:20
●MXaspmx3.googlemail.com2026-03-14 → 2026-03-18 · 3 obs
○ 2015-11-21 06:49:44
● 2026-03-14 07:33:30
● 2026-03-18 21:44:20
○MXmail.b-io.co2015-07-23 → 2015-07-23 · 3 obs
● 2015-07-23 19:05:24
○ 2015-11-21 06:49:44
○ 2026-03-18 21:44:20
●A141.193.213.202026-03-14 → 2026-03-18 · 3 obs
○ 2016-11-17 15:43:08
● 2026-03-14 07:33:30
● 2026-03-18 21:44:20
●A141.193.213.212026-03-14 → 2026-03-18 · 3 obs
○ 2016-11-17 15:43:08
● 2026-03-14 07:33:30
● 2026-03-18 21:44:20
○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
○ 2026-03-18 21:44:20
○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
○ 2026-03-18 21:44:20
○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
○ 2026-03-18 21:44:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
class101.comns27.domaincontrol.com, ns28.domaincontrol.com4 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: 190ms | Queries: -

📄 Records

TypeCountSample Data
A2141.193.213.21, 141.193.213.20
NS2ns27.domaincontrol.com, ns28.domaincontrol.com
MX5alt1.aspmx.l.google.com (pri: 20), aspmx.l.google.com (pri: 10)...
TXT4box-domain-verification=370ce76948848e11, knowbe4-site-verification=c4133e55ea8542...
SOA1ns27.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 points to two IP numbers: 141.193.213.20 and 141.193.213.21.

Other host names such as homeschools.org, tursagroup.com, samfit.org, nwrecycling.com and ff3pupclbwsv.wpeproxy.com share IPs with class101.com.

Name Servers

Two name servers ns27.domaincontrol.com and ns28.domaincontrol.com handle the delegation for class101.com.

class101.com shares the same name server setup as other domains, for example huntat.com, movablepoolfloor.com, homesbyzipcodes.com, solarticino.ch and ukfireservices.com.

Host names with two IP numbers:

ns27.domaincontrol.com points to 2603:5:2171::e and 97.74.103.14.

ns28.domaincontrol.com points to 2603:5:2271::e and 173.201.71.14.

Mail Servers

class101.com is handled by five mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.

class101.com shares at least partially some mail servers with other domains, for instance turboo.com, segelflugverein-bielefeld.de, koor.ee, hospitalfloridavalle.gov.co and arc-renovation.fr.

these mail servers are often used together with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx5.googlemail.com and aspmx4.googlemail.com.

Host names with two IP numbers

Each host name points to two IP numbers:

aspmx2.googlemail.com points to 2607:f8b0:4023:2801::1b and 192.178.128.27

aspmx3.googlemail.com points to 2607:f8b0:4023:1015::1b and 172.253.135.26

aspmx.l.google.com points to 2607:f8b0:4004:c19::1b and 172.253.62.27

alt1.aspmx.l.google.com points to 2607:f8b0:4003:c30::1b and 74.125.27.26

alt2.aspmx.l.google.com points to 2607:f8b0:4001:c70::1a and 192.178.209.26