class221.com - robtex.com

class221.com

DNSSEC⚠️ Not signed
A35.212.102.188🇺🇸 Google35.212.0.0/17
PTR188.102.212.35.bc.googleusercontent.com
NSns1.siteground.net ⭐ ⚠️ Not in parent delegation
A75.2.77.104🇺🇸 Amazon75.2.64.0/20
PTRac4b097dbd0dd6307.awsglobalaccelerator.com
NSns1.siteground203.com ⚠️ Not in zone NS records
A75.2.77.104🇺🇸 Amazon75.2.64.0/20
PTRac4b097dbd0dd6307.awsglobalaccelerator.com
NSns2.siteground.net ⚠️ Not in parent delegation
A99.83.229.113🇺🇸 Amazon99.83.224.0/20
PTRac4b097dbd0dd6307.awsglobalaccelerator.com
NSns2.siteground203.com ⚠️ Not in zone NS records
A99.83.229.113🇺🇸 Amazon99.83.224.0/20
PTRac4b097dbd0dd6307.awsglobalaccelerator.com
MXmx10.antispam.mailspamprotection.com ⭐
A34.149.79.66🇺🇸 Google34.148.0.0/14
PTR66.79.149.34.bc.googleusercontent.com
MXmx20.antispam.mailspamprotection.com(20)
A34.120.156.61🇺🇸 Google34.120.0.0/14
PTR61.156.120.34.bc.googleusercontent.com
MXmx30.antispam.mailspamprotection.com(30)
A34.111.121.216🇺🇸 Google34.108.0.0/14
PTR216.121.111.34.bc.googleusercontent.com
TXTv=spf1 +a +mx include:class221.com.spf.auto.dnssmarthost.net ~all
SOAns1.siteground.netroot@serv01.siteground203.com 2020-08-18 #88

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=1774735677

Same first word

class221.com

DNS History

12 records (8 active, 4 former)

20162017201820192020202120222023202420252026NSns1.siteground.netns1.siteground203.comns2.siteground.netns2.siteground203.comMXmx10.antispam.mailspamprotection.commx20.antispam.mailspamprotection.commx30.antispam.mailspamprotection.commx10.mailspamprotection.commx20.mailspamprotection.commx30.mailspamprotection.comA35.212.102.188181.224.138.149
●NSns1.siteground.net2026-03-23 → 2026-03-28 · 3 obs
○ 2015-07-19 05:52:24
● 2026-03-23 12:40:48
● 2026-03-28 22:29:30
●NSns1.siteground203.com2015-07-19 → 2026-03-28 · 2 obs
● 2015-07-19 05:52:24
● 2026-03-28 22:29:30
●NSns2.siteground.net2026-03-23 → 2026-03-28 · 3 obs
○ 2015-07-19 05:52:24
● 2026-03-23 12:40:48
● 2026-03-28 22:29:30
●NSns2.siteground203.com2015-07-19 → 2026-03-28 · 2 obs
● 2015-07-19 05:52:24
● 2026-03-28 22:29:30
●MXmx10.antispam.mailspamprotection.com2026-03-23 → 2026-03-28 · 3 obs
○ 2017-01-03 04:16:44
● 2026-03-23 12:40:48
● 2026-03-28 22:29:30
○MXmx10.mailspamprotection.com2015-07-19 → 2017-01-03 · 4 obs
● 2015-07-19 05:52:24
● 2017-01-03 04:16:44
○ 2026-03-23 12:40:48
○ 2026-03-28 22:29:30
●MXmx20.antispam.mailspamprotection.com2026-03-23 → 2026-03-28 · 3 obs
○ 2017-01-03 04:16:44
● 2026-03-23 12:40:48
● 2026-03-28 22:29:30
○MXmx20.mailspamprotection.com2015-07-19 → 2017-01-03 · 4 obs
● 2015-07-19 05:52:24
● 2017-01-03 04:16:44
○ 2026-03-23 12:40:48
○ 2026-03-28 22:29:30
●MXmx30.antispam.mailspamprotection.com2026-03-23 → 2026-03-28 · 3 obs
○ 2017-01-03 04:16:44
● 2026-03-23 12:40:48
● 2026-03-28 22:29:30
○MXmx30.mailspamprotection.com2015-07-19 → 2017-01-03 · 4 obs
● 2015-07-19 05:52:24
● 2017-01-03 04:16:44
○ 2026-03-23 12:40:48
○ 2026-03-28 22:29:30
○A181.224.138.1492015-07-19 → 2017-01-03 · 4 obs
● 2015-07-19 05:52:24
● 2017-01-03 04:16:44
○ 2026-03-23 12:40:48
○ 2026-03-28 22:29:30
●A35.212.102.1882026-03-23 → 2026-03-28 · 3 obs
○ 2017-01-03 04:16:44
● 2026-03-23 12:40:48
● 2026-03-28 22:29:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comk.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net...-
class221.comns1.siteground203.com, ns2.siteground203.com2 records

✅ Authoritative Response

Server:99.83.229.113

NS records: ns1.siteground203.com, ns2.siteground203.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for class221.com (unsigned zone)

⏱️ Timing

Total: 187ms | Queries: -

📄 Records

TypeCountSample Data
A135.212.102.188
NS2ns1.siteground.net, ns2.siteground.net
MX3mx10.antispam.mailspamprotection.com (pr, mx30.antispam.mailspamprotection.com (pr...
TXT1v=spf1 +a +mx include:class221.com.spf.a
SOA1ns1.siteground.net root.serv01.sitegroun

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.siteground203.com, ns2.siteground203.com)

Analysis

IP Addresses

class221.com points to a single IP number: 35.212.102.188.

Other host names, for instance e-bogu.org, e-bogu.com.br, arigadojo.com, engineeringventures.com and videa.ca share IP numbers with class221.com.

Name Servers

class221.com is delegated to four name servers: ns1.siteground203.com, ns2.siteground203.com, ns1.siteground.net and ns2.siteground.net.

class221.com shares name servers with other domains at least partially, for instance fieldsofvision.net, tamarindobeachsurf.com, gowithus.nl, ecologyapplied.com and integrityinsurancespecialist.com.

Names with a single IP:

ns1.siteground203.com points to: 75.2.77.104

ns2.siteground203.com points to: 99.83.229.113

ns1.siteground.net points to: 75.2.77.104

ns2.siteground.net points to: 99.83.229.113

Names pointing to 75.2.77.104: ns1.siteground203.com and ns1.siteground.net

Names pointing to 99.83.229.113: ns2.siteground203.com and ns2.siteground.net

Mail Servers

class221.com is handled by three mail servers: mx10.antispam.mailspamprotection.com, mx20.antispam.mailspamprotection.com and mx30.antispam.mailspamprotection.com.

class221.com shares some mail servers with other domains, including maple-test.com, agraltamecanica.com.mx, arkafrica.org, proword.net and ofthecourtmate.nl.

Host names with a single IP number:

mx10.antispam.mailspamprotection.com points to 34.149.79.66.

mx20.antispam.mailspamprotection.com points to 34.120.156.61.

mx30.antispam.mailspamprotection.com points to 34.111.121.216.