class.it - dns.ninja

class.it

DNSSEC⚠️ Not signed
A172.213.177.73🇬🇧 Microsoft172.208.0.0/13
NSdns3.fastweb.it ⭐
A2001:b00:4:5:3::🇮🇹 FASTWEB2001:b00::/29 Fastweb Networks ipv6 block
A85.18.87.69🇮🇹 FASTWEB85.18.0.0/17 Fastweb Networks block
PTRdns3.fastweb.it
NSdns4.fastweb.it
A2001:b00:4:8:3::🇮🇹 FASTWEB2001:b00::/29 Fastweb Networks ipv6 block
A213.140.22.93🇮🇹 FASTWEB213.140.16.0/20 Fastweb Networks block
PTRdns4.fastweb.it
MXclass-it.mail.protection.outlook.com ⭐
A2a01:111:f403:ca04::4🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db4pr02cu00204.inbound.protection.outlook.com
A2a01:111:f403:ca04::5🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db3pr0202cu00205.inbound.protection.outlook.com
A2a01:111:f403:ca04::8🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db5pr02cu00100.inbound.protection.outlook.com
A2a01:111:f403:ca09::20🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-as8pr05cu00400.inbound.protection.outlook.com
A52.101.68.12🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db9pr02cu00204.inbound.protection.outlook.com
A52.101.73.16🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-as2pr05cu00100.inbound.protection.outlook.com
A52.101.73.22🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am7pr05cu00106.inbound.protection.outlook.com
A52.101.73.153🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-as8pr05cu00401.inbound.protection.outlook.com
TXTMS=ms13359557
TXTv=spf1 ip4:151.80.30.116 ip4:212.35.204.99 ip4:212.35.206.19 ip4:37.9.237.80 ...
TXTgoogle-site-verification=10DbMNvm26e6WTP3xpkpG0dQXG7_B8EBfSUSf7uDT4I
SOAdns3.fastweb.itdnsmaster@fastweb.it 2026-05-28 #0

it

DNSSEC🔒 Signed (DS record present)
NSdns.nic.it ⭐
NSa.dns.it
NSm.dns.it
NSnameserver.cnr.it
NSr.dns.it
NSv.dns.it
SOAdns.nic.ithostmaster@nic.it 2026-07-01 #21
WOT: SAFE (68/100)

Subdomains

www.class.it
mail.class.it
newsletter.class.it
adserver.class.it
ftp.class.it

Same first word

class.co
class.am
class.it
class.works
class.systems
class.technology
class.network
class.com.py
class.info
class.do
class.tax
class.world
class.expert
class.co.at
class.msk.ru
class.so
class.report
class.al
class.eu
class.st
class.id
class.biz
class.com.tr
class.gr
class.org
class.us
class.com
class.bet
class.ps
class.edu.pl
class.com.mx
class.dk
class.builders
class.capital
class.watch
class.srl
class.com.cn
class.lv
class.cash
class.management
class.wiki
class.ch
class.com.tw
class.guide
class.kr
class.cc
class.mba
class.tech
class.digital
class.sk
class.run
class.today
class.immo
class.me
class.im
class.cl
class.ma
class.adobeaemcloud.com
class.com.au
class.nl
class.io
class.fr
class.tel
class.net
class.hu
class.ro
class.net.nz
class.co.jp
class.zone
class.no
class.es
class.hr
class.on.ca
class.community
class.agency
class.cn
class.rocks
class.cz
class.com.br
class.la
class.ca
class.solutions
class.com.pe
class.lk
class.edu.vn
class.net.br
class.email
class.pe
class.bg
class.ai
class.business
class.cool
class.ai.in
class.se
class.ly
class.su
class.rs
class.de

Similar names

cassl.org
ascls.org
lsasc.org
slacs.de
clssa.info
lscas.com
scals.de
clssa.org
scsla.com
scals.co.jp
sacsl.es
ascsl.com
acssl.campaign.gov.uk
aslcs.com
scals.com
lscsa.com
lcsas.us
lcssa.com
lssac.com
slacs.ca
lsasc.com
cssla.com
slsca.com
sslca.com
ascsl.net
sscal.com
aclss.com
ssalc.org
saslc.com
casls.com
acssl.com
salsc.com
alscs.com
calss.net.cn
lscsa.de
lacss.org

DNS History

11 records (4 active, 7 former)

20162017201820192020202120222023202420252026NSdns3.fastweb.itdns4.fastweb.itdns1.fastweb.itdns2.fastweb.itMXclass-it.mail.protection.outlook.commx01cef.spamina.commx02cef.spamina.commx1.class.itmx2.class.itA172.213.177.73194.185.224.188
○NSdns1.fastweb.it2015-07-23 → 2018-02-07 · 4 obs
● 2015-07-23 13:17:38
● 2018-02-07 10:00:28
○ 2026-02-23 17:15:46
○ 2026-07-01 20:04:02
○NSdns2.fastweb.it2015-07-23 → 2018-02-07 · 4 obs
● 2015-07-23 13:17:38
● 2018-02-07 10:00:28
○ 2026-02-23 17:15:46
○ 2026-07-01 20:04:02
●NSdns3.fastweb.it2026-02-23 → 2026-07-01 · 3 obs
○ 2018-02-07 10:00:28
● 2026-02-23 17:15:46
● 2026-07-01 20:04:02
●NSdns4.fastweb.it2026-02-23 → 2026-07-01 · 3 obs
○ 2018-02-07 10:00:28
● 2026-02-23 17:15:46
● 2026-07-01 20:04:02
●MXclass-it.mail.protection.outlook.com2026-02-23 → 2026-07-01 · 3 obs
○ 2018-02-07 10:00:28
● 2026-02-23 17:15:46
● 2026-07-01 20:04:02
○MXmx01cef.spamina.com2015-07-23 → 2016-12-31 · 4 obs
● 2015-07-23 13:17:38
● 2016-12-31 00:50:00
○ 2018-02-07 10:00:28
○ 2026-07-01 20:04:02
○MXmx02cef.spamina.com2015-07-23 → 2016-12-31 · 4 obs
● 2015-07-23 13:17:38
● 2016-12-31 00:50:00
○ 2018-02-07 10:00:28
○ 2026-07-01 20:04:02
○MXmx1.class.it2018-02-07 → 2018-02-07 · 4 obs
○ 2016-12-31 00:50:00
● 2018-02-07 10:00:28
○ 2026-02-23 17:15:46
○ 2026-07-01 20:04:02
○MXmx2.class.it2018-02-07 → 2018-02-07 · 4 obs
○ 2016-12-31 00:50:00
● 2018-02-07 10:00:28
○ 2026-02-23 17:15:46
○ 2026-07-01 20:04:02
●A172.213.177.732026-02-23 → 2026-07-01 · 3 obs
○ 2018-02-07 10:00:28
● 2026-02-23 17:15:46
● 2026-07-01 20:04:02
○A194.185.224.1882018-02-07 → 2018-02-07 · 3 obs
● 2018-02-07 10:00:28
○ 2026-02-23 17:15:46
○ 2026-07-01 20:04:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
itnameserver.cnr.it, v.dns.it, m.dns.it, a.dns.it...-
class.itdns4.fastweb.it, dns3.fastweb.it2 records

✅ Authoritative Response

Server:213.140.22.93

NS records: dns4.fastweb.it, dns3.fastweb.it

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for class.it (unsigned zone)

⏱️ Timing

Total: 1133ms | Queries: -

📄 Records

TypeCountSample Data
A1172.213.177.73
NS2dns3.fastweb.it, dns4.fastweb.it
MX1class-it.mail.protection.outlook.com (pr
TXT3v=spf1 ip4:151.80.30.116 ip4:212.35.204., MS=ms13359557...
SOA1dns3.fastweb.it dnsmaster.fastweb.it

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns4.fastweb.it, dns3.fastweb.it)

Analysis

Hierarchy

class.it is a parent domain of www.class.it, mail.class.it, newsletter.class.it, adserver.class.it and ftp.class.it.

IP Addresses

class.it has exactly one IP address — 172.213.177.73.

classxhsilkroad.it, static.italiaoggi.it, milanofinanza.it plus two other host names have IP numbers in common with class.it.

Name Servers

class.it is delegated to two name servers: dns3.fastweb.it and dns4.fastweb.it.

The name server configuration of class.it is shared with other domains, for instance 122.233.2.in-addr.arpa, 86.224.2.in-addr.arpa, 218.32.93.in-addr.arpa and two others.

dns3.fastweb.it and dns4.fastweb.it each resolve to two IP addresses: dns3.fastweb.it points to 85.18.87.69 and 2001:b00:4:5:3::, while dns4.fastweb.it points to 213.140.22.93 and 2001:b00:4:8:3::.

Mail Servers

class.it uses one mail server — class-it.mail.protection.outlook.com.

class-it.mail.protection.outlook.com has 8 IP addresses: 52.101.68.12, 52.101.73.16, 52.101.73.22 plus 5 more.