class.do - robtex.com

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=135, name=cloudflare-ech.com
SOAdayana.ns.cloudflare.comdns@cloudflare.com serial=2400186983

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: 1776938701
SOAns1.nic.dohostmaster@nic.do 2026-04-23 #10

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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 → 2026-04-23 · 3 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
● 2026-04-23 11:35:08
○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
○ 2026-04-23 11:35:08
○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
○ 2026-04-23 11:35:08
○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
○ 2026-04-23 11:35:08
○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
○ 2026-04-23 11:35:08
●NSsean.ns.cloudflare.com2026-02-15 → 2026-04-23 · 3 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
● 2026-04-23 11:35:08
●A104.21.58.2412026-02-15 → 2026-04-23 · 3 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
● 2026-04-23 11:35:08
●A172.67.166.692026-02-15 → 2026-04-23 · 3 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
● 2026-04-23 11:35:08
○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
○ 2026-04-23 11:35:08
●A2606:4700:3035::6815:3af12026-02-15 → 2026-04-23 · 3 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
● 2026-04-23 11:35:08
●A2606:4700:3037::ac43:a6452026-02-15 → 2026-04-23 · 3 obs
○ 2016-06-30 19:12:32
● 2026-02-15 04:45:54
● 2026-04-23 11:35:08
○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
○ 2026-04-23 11:35:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dons4.nic.do, ns1.nic.do, ns.nic.do, ns5.nic.do...-
class.dodayana.ns.cloudflare.com, sean.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.34.103

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for do (unsigned zone)

⏱️ Timing

Total: 447ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.166.69, 104.21.58.241
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.

Analysis

IP Addresses

Four IP numbers are pointed to by class.do: 2606:4700:3035::6815:3af1, 2606:4700:3037::ac43:a645, 104.21.58.241 and 172.67.166.69.

other host names including amploi.com, lnpost.pdfgjk445.icu, bellybutton.co.uk, www.austintravel.com and 181778.com share IP numbers with class.do.

Name Servers

class.do is delegated to two name servers dayana.ns.cloudflare.com and sean.ns.cloudflare.com.

class.do shares the same name server setup as other domains, for instance ruby.do, federationinternational.com, parami.io, comfortbet.info and pages.as.

class.do at least partially shares name servers with other domains, for instance eaglene.gov, mfe.dev, instrumedic.pl, gamotitegaonpartners64.click and 1xbet-giris2026.com.

these name servers are often used together with luciana.ns.cloudflare.com, roman.ns.cloudflare.com, bradley.ns.cloudflare.com and rayden.ns.cloudflare.com.

Host names with six IP numbers:

Host name dayana.ns.cloudflare.com points to: 2606:4700:50::a29f:2667, 2803:f800:50::6ca2:c267, 2a06:98c1:50::ac40:2267, 108.162.194.103, 162.159.38.103 and 172.64.34.103.

Host name sean.ns.cloudflare.com points to: 2606:4700:58::adf5:3be7, 2803:f800:50::6ca2:c1e7, 2a06:98c1:50::ac40:21e7, 108.162.193.231, 172.64.33.231 and 173.245.59.231.