class.do - dns.ninja

class.do

DNSSEC⚠️ Not signed
A2606:4700:3035::6815:3af1🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:a645🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.58.241Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.166.69🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdayana.ns.cloudflare.com ⭐
A2606:4700:50::a29f:2667🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdayana.ns.cloudflare.com
A2803:f800:50::6ca2:c267🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdayana.ns.cloudflare.com
A2a06:98c1:50::ac40:2267🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdayana.ns.cloudflare.com
A108.162.194.103🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdayana.ns.cloudflare.com
A162.159.38.103Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdayana.ns.cloudflare.com
A172.64.34.103🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdayana.ns.cloudflare.com
NSsean.ns.cloudflare.com
A2606:4700:58::adf5:3be7🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsean.ns.cloudflare.com
A2803:f800:50::6ca2:c1e7🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsean.ns.cloudflare.com
A2a06:98c1:50::ac40:21e7🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsean.ns.cloudflare.com
A108.162.193.231🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsean.ns.cloudflare.com
A172.64.33.231🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsean.ns.cloudflare.com
A173.245.59.231🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsean.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.58.241, 172.67.166.69
IPv6 hints2606:4700:3035::6815:3af1, 2606:4700:3037::ac43:a645
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=117, name=cloudflare-ech.com
SOAdayana.ns.cloudflare.comdns@cloudflare.com serial=2406697566

do

DNSSEC⚠️ Not signed
NSns2.nic.do ⭐
NSa.lactld.org ⚠️ Not in parent delegation
NSns.nic.do
NSns1.nic.do
NSns4.nic.do
NSns5.nic.do
NSphloem.uoregon.edu ⚠️ Not in parent delegation
TXTGeneration Time: 1781402414
SOAns1.nic.dohostmaster@nic.do 2026-06-14 #2

Same first word

class.hr
class.on.ca
class.community
class.agency
class.cn
class.rocks
class.services
class.cz
class.com.br
class.la
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class.pe
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class.ai
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class.se
class.ly
class.su
class.rs
class.de
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.es

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alcss.com
saslc.ca
cslsa.org
scasl.com
acssl.lu
slacs.org
clssa.net
clssa.co.za
salcs.com
cslsa.com
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salcs.org
cssla.org
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lcass.com
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scals.cn
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scsla.org
clsas.com
ssacl.com
slcsa.co.za
slcas.on.ca
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
slacs.net

DNS History

12 records (6 active, 6 former)

20162017201820192020202120222023202420252026NSdayana.ns.cloudflare.comsean.ns.cloudflare.comns-1390.awsdns-45.orgns-1990.awsdns-56.co.ukns-40.awsdns-05.comns-679.awsdns-20.netA104.21.58.241172.67.166.692606:4700:3035::6815:3af12606:4700:3037::ac43:a645175.41.254.13052.192.113.154
●NSdayana.ns.cloudflare.com2026-02-15 → 2026-06-14 · 3 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
● 2026-06-14 03:33:38
○NSns-1390.awsdns-45.org2015-06-25 → 2016-06-30 · 4 obs
● 2015-06-25 09:09:22
● 2016-06-30 19:12:32
○ 2026-02-15 04:45:54
○ 2026-06-14 03:33:38
○NSns-1990.awsdns-56.co.uk2015-06-25 → 2016-06-30 · 4 obs
● 2015-06-25 09:09:22
● 2016-06-30 19:12:32
○ 2026-02-15 04:45:54
○ 2026-06-14 03:33:38
○NSns-40.awsdns-05.com2015-06-25 → 2016-06-30 · 4 obs
● 2015-06-25 09:09:22
● 2016-06-30 19:12:32
○ 2026-02-15 04:45:54
○ 2026-06-14 03:33:38
○NSns-679.awsdns-20.net2015-06-25 → 2016-06-30 · 4 obs
● 2015-06-25 09:09:22
● 2016-06-30 19:12:32
○ 2026-02-15 04:45:54
○ 2026-06-14 03:33:38
●NSsean.ns.cloudflare.com2026-02-15 → 2026-06-14 · 3 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
● 2026-06-14 03:33:38
●A104.21.58.2412026-02-15 → 2026-06-14 · 3 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
● 2026-06-14 03:33:38
●A172.67.166.692026-02-15 → 2026-06-14 · 3 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
● 2026-06-14 03:33:38
○A175.41.254.1302015-06-25 → 2015-10-30 · 4 obs
● 2015-06-25 09:09:22
● 2015-10-30 15:17:22
○ 2016-01-05 15:02:14
○ 2026-06-14 03:33:38
●A2606:4700:3035::6815:3af12026-02-15 → 2026-06-14 · 3 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
● 2026-06-14 03:33:38
●A2606:4700:3037::ac43:a6452026-02-15 → 2026-06-14 · 3 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
● 2026-06-14 03:33:38
○A52.192.113.1542016-01-05 → 2016-06-30 · 5 obs
○ 2015-10-30 15:17:22
● 2016-01-05 15:02:14
● 2016-06-30 19:12:32
○ 2026-02-15 04:45:54
○ 2026-06-14 03:33:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dons5.nic.do, a.lactld.org, ns1.nic.do, ns2.nic.do...14 records
class.dosean.ns.cloudflare.com, dayana.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.38.103

NS records: sean.ns.cloudflare.com, dayana.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for do (unsigned zone)

⏱️ Timing

Total: 502ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.58.241, 172.67.166.69
AAAA22606:4700:3037::ac43:a645, 2606:4700:3035::6815:3af1
NS2dayana.ns.cloudflare.com, sean.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1dayana.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 14

In-bailiwick: 10 (ns5.nic.do, ns5.nic.do, ns1.nic.do...)

Out-of-bailiwick: 4 (a.lactld.org, a.lactld.org, phloem.uoregon.edu...)

Analysis

IP Addresses

class.do points to four IP numbers: 104.21.58.241, 172.67.166.69, 2606:4700:3035::6815:3af1 and 2606:4700:3037::ac43:a645.

Additional host names — amploi.com, tr-jojobet1174.com, lnpost.pdfgjk445.icu and two others — share IP numbers with class.do.

Name Servers

Two name servers handle the delegation for class.do: dayana.ns.cloudflare.com and sean.ns.cloudflare.com.

class.do shares its name server setup with other domains, including ruby.do, federationinternational.com, parami.io and two others.

At least some of class.do's name servers are shared with other domains, for example eaglene.gov, mfe.dev, enteralrelay.digital and two more.

It is common for these name servers to be used in conjunction with the name servers luciana.ns.cloudflare.com, roman.ns.cloudflare.com and chad.ns.cloudflare.com.

Host names with 6 IP numbers:

dayana.ns.cloudflare.com resolves to 108.162.194.103, 162.159.38.103 and 172.64.34.103 among others, with 3 other IP addresses in total.

sean.ns.cloudflare.com resolves to 108.162.193.231, 172.64.33.231 and 173.245.59.231 among others, with 3 other IP addresses in total.