class.do - dns.ninja

class.do

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:a645🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:3af1🇺🇸 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 hints2606:4700:3032::ac43:a645, 2606:4700:3037::6815:3af1
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=86, name=cloudflare-ech.com
SOAdayana.ns.cloudflare.comdns@cloudflare.com serial=2410591163

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: 1785470415
SOAns1.nic.dohostmaster@nic.do 2026-07-31 #5

Same first word

class.hr
class.on.ca
class.community
class.agency
class.cn
class.rocks
class.cz
class.com.br
class.estate
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class.st
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class.ps
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class.com.mx
class.dk
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class.capital
class.watch
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class.com.cn
class.lv
class.cash
class.management
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class.is
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class.tech
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class.immo
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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

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ssalc.org
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salsc.com
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calss.net.cn
lscsa.de

DNS History

14 records (6 active, 8 former)

20162017201820192020202120222023202420252026NSdayana.ns.cloudflare.comsean.ns.cloudflare.comns-1390.awsdns-45.orgns-1990.awsdns-56.co.ukns-40.awsdns-05.comns-679.awsdns-20.netA104.21.58.241172.67.166.692606:4700:3032::ac43:a6452606:4700:3037::6815:3af1175.41.254.1302606:4700:3035::6815:3af12606:4700:3037::ac43:a64552.192.113.154
●NSdayana.ns.cloudflare.com2026-02-15 → 2026-07-31 · 3 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
● 2026-07-31 05:51:38
○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
○ 2026-07-31 05:51:38
○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
○ 2026-07-31 05:51:38
○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
○ 2026-07-31 05:51:38
○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
○ 2026-07-31 05:51:38
●NSsean.ns.cloudflare.com2026-02-15 → 2026-07-31 · 3 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
● 2026-07-31 05:51:38
●A104.21.58.2412026-02-15 → 2026-07-31 · 4 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
○ 2026-07-20 21:12:22
● 2026-07-31 05:51:38
●A172.67.166.692026-02-15 → 2026-07-31 · 4 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
○ 2026-07-20 21:12:22
● 2026-07-31 05:51:38
○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
○ 2026-07-31 05:51:38
●A2606:4700:3032::ac43:a6452026-06-27 → 2026-07-31 · 4 obs
○ 2026-06-14 03:33:38
● 2026-06-27 05:19:32
○ 2026-07-20 21:12:22
● 2026-07-31 05:51:38
○A2606:4700:3035::6815:3af12026-02-15 → 2026-06-14 · 5 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
● 2026-06-14 03:33:38
○ 2026-06-27 05:19:32
○ 2026-07-31 05:51:38
●A2606:4700:3037::6815:3af12026-06-27 → 2026-07-31 · 4 obs
○ 2026-06-14 03:33:38
● 2026-06-27 05:19:32
○ 2026-07-20 21:12:22
● 2026-07-31 05:51:38
○A2606:4700:3037::ac43:a6452026-02-15 → 2026-06-14 · 5 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
● 2026-06-14 03:33:38
○ 2026-06-27 05:19:32
○ 2026-07-31 05:51:38
○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
○ 2026-07-31 05:51:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dons5.nic.do, ns1.nic.do, ns2.nic.do, ns.nic.do...-
class.dodayana.ns.cloudflare.com, sean.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.231

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for do (unsigned zone)

⏱️ Timing

Total: 326ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.166.69, 104.21.58.241
AAAA22606:4700:3032::ac43:a645, 2606:4700:3037::6815:3af1
NS2dayana.ns.cloudflare.com, sean.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1dayana.ns.cloudflare.com dns.cloudflare.

Analysis

IP Addresses

class.do directs to four IP numbers, which are 104.21.58.241, 172.67.166.69, 2606:4700:3032::ac43:a645 and 2606:4700:3037::6815:3af1.

Additional host names — amploi.com, lnpost.pdfgjk445.icu, 181778.com 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, dipwarevault.digital and two more.

These name servers are often deployed together with the name servers luciana.ns.cloudflare.com, roman.ns.cloudflare.com, chad.ns.cloudflare.com and rayden.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.