dwu21.net - robtex.com

dwu21.net

DNSSECπŸ”’ Signed (DS record present)
A2606:4700:3035::6815:25beπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A2606:4700:3036::ac43:d46cπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A104.21.37.190Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A172.67.212.108πŸ‡ΊπŸ‡Έ Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
NScora.ns.cloudflare.com ⭐
A2606:4700:50::a29f:26c3πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcora.ns.cloudflare.com
A2803:f800:50::6ca2:c2c3πŸ‡¨πŸ‡· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcora.ns.cloudflare.com
A2a06:98c1:50::ac40:22c3πŸ‡ΊπŸ‡Έ Cloudflare2a06:98c1:50::/45
PTRcora.ns.cloudflare.com
A108.162.194.195πŸ‡ΊπŸ‡Έ Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcora.ns.cloudflare.com
A162.159.38.195Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcora.ns.cloudflare.com
A172.64.34.195πŸ‡ΊπŸ‡Έ Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcora.ns.cloudflare.com
NState.ns.cloudflare.com
A2606:4700:58::a29f:2cbfπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtate.ns.cloudflare.com
A2803:f800:50::6ca2:c3bfπŸ‡¨πŸ‡· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtate.ns.cloudflare.com
A2a06:98c1:50::ac40:23bfπŸ‡ΊπŸ‡Έ Cloudflare2a06:98c1:50::/45
PTRtate.ns.cloudflare.com
A108.162.195.191πŸ‡ΊπŸ‡Έ Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtate.ns.cloudflare.com
A162.159.44.191Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtate.ns.cloudflare.com
A172.64.35.191πŸ‡ΊπŸ‡Έ Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtate.ns.cloudflare.com
MXmail.protonmail.ch ⭐
A176.119.200.128πŸ‡¨πŸ‡­ Proton176.119.200.0/24
PTRmail.protonmail.ch
A185.70.42.128πŸ‡¨πŸ‡­ Proton185.70.42.0/24
PTRmail.protonmail.ch
A185.205.70.128πŸ‡«πŸ‡· Proton185.205.70.0/24
PTRmail.protonmail.ch
MXmailsec.protonmail.ch(20)
A176.119.200.129πŸ‡¨πŸ‡­ Proton176.119.200.0/24
PTRmailsec.protonmail.ch
A185.70.42.129πŸ‡¨πŸ‡­ Proton185.70.42.0/24
PTRmailsec.protonmail.ch
A185.205.70.129πŸ‡«πŸ‡· Proton185.205.70.0/24
PTRmailsec.protonmail.ch
TXTprotonmail-verification=bcc489d416878a19cc35ab5573311a2979fc0727
TXTv=spf1 include:_spf.protonmail.ch mx -all
HTTPSHTTP/3, HTTP/2 βœ“ hints match
IPv4 hints104.21.37.190, 172.67.212.108
IPv6 hints2606:4700:3035::6815:25be, 2606:4700:3036::ac43:d46c
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=3, name=cloudflare-ech.com
SOAcora.ns.cloudflare.comdns@cloudflare.com serial=2402355122

net

πŸ”’ HSTS Preload (+subdomains)

Same first word

DNS History

10 records (8 active, 2 former)

NScora.ns.cloudflare.comtate.ns.cloudflare.comMXmail.protonmail.chmailsec.protonmail.chA104.21.37.190172.67.212.1082606:4700:3035::6815:25be2606:4700:3036::ac43:d46c172.64.80.12606:4700:130:436c:6f75:6466:6c61:7265
●NScora.ns.cloudflare.com2026-02-16 β†’ 2026-04-26 Β· 2 obs
● 2026-02-16 23:44:44
● 2026-04-26 09:48:12
●NState.ns.cloudflare.com2026-02-16 β†’ 2026-04-26 Β· 2 obs
● 2026-02-16 23:44:44
● 2026-04-26 09:48:12
●MXmail.protonmail.ch2026-02-16 β†’ 2026-04-26 Β· 2 obs
● 2026-02-16 23:44:44
● 2026-04-26 09:48:12
●MXmailsec.protonmail.ch2026-02-16 β†’ 2026-04-26 Β· 2 obs
● 2026-02-16 23:44:44
● 2026-04-26 09:48:12
●A104.21.37.1902026-02-16 β†’ 2026-04-26 Β· 5 obs
● 2026-02-16 23:44:44
● 2026-02-25 23:12:16
β—‹ 2026-03-18 00:40:42
● 2026-03-18 02:16:44
● 2026-04-26 09:48:12
β—‹A172.64.80.12026-03-18 β†’ 2026-03-18 Β· 4 obs
β—‹ 2026-02-25 23:12:16
● 2026-03-18 00:40:42
β—‹ 2026-03-18 02:16:44
β—‹ 2026-04-26 09:48:12
●A172.67.212.1082026-02-16 β†’ 2026-04-26 Β· 5 obs
● 2026-02-16 23:44:44
● 2026-02-25 23:12:16
β—‹ 2026-03-18 00:40:42
● 2026-03-18 02:16:44
● 2026-04-26 09:48:12
β—‹A2606:4700:130:436c:6f75:6466:6c61:72652026-03-18 β†’ 2026-03-18 Β· 4 obs
β—‹ 2026-02-25 23:12:16
● 2026-03-18 00:40:42
β—‹ 2026-03-18 02:16:44
β—‹ 2026-04-26 09:48:12
●A2606:4700:3035::6815:25be2026-02-16 β†’ 2026-04-26 Β· 5 obs
● 2026-02-16 23:44:44
● 2026-02-25 23:12:16
β—‹ 2026-03-18 00:40:42
● 2026-03-18 02:16:44
● 2026-04-26 09:48:12
●A2606:4700:3036::ac43:d46c2026-02-16 β†’ 2026-04-26 Β· 5 obs
● 2026-02-16 23:44:44
● 2026-02-25 23:12:16
β—‹ 2026-03-18 00:40:42
● 2026-03-18 02:16:44
● 2026-04-26 09:48:12

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
netc.gtld-servers.net, e.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net...-
dwu21.netcora.ns.cloudflare.com, tate.ns.cloudflare.com-

βœ… Authoritative Response

Server:162.159.38.195

NS records: cora.ns.cloudflare.com, tate.ns.cloudflare.com

πŸ”’ DNSSEC Status

πŸ” Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 505ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A2172.67.212.108, 104.21.37.190
AAAA22606:4700:3036::ac43:d46c, 2606:4700:3035::6815:25be
NS2cora.ns.cloudflare.com, tate.ns.cloudflare.com
MX2mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20)
TXT2protonmail-verification=bcc489d416878a19, v=spf1 include:_spf.protonmail.ch mx -al
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1cora.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

dwu21.net points to four IP numbers: 2606:4700:3035::6815:25be, 2606:4700:3036::ac43:d46c, 104.21.37.190 and 172.67.212.108.

Other host names including belboon.es, ruletka.guru, faturakom.net, davmohali.com and hexinfo.io share IP numbers with dwu21.net.

Name Servers

dwu21.net's delegation uses two name servers, cora.ns.cloudflare.com and tate.ns.cloudflare.com.

dwu21.net shares the same name server setup as other domains, for example procuraplus.org, solutions-gateway.org, iclei.net, sustainable-procurement.org and preventive-integrative.ch.

dwu21.net at least partially shares name servers with other domains, including nk88s.me, monnit.com, event-graplinqproto.xyz, j7vo.com and oscar89.fun.

These name servers are commonly used with susan.ns.cloudflare.com and kyrie.ns.cloudflare.com.

Host names with six IP numbers:

cora.ns.cloudflare.com points to: 2606:4700:50::a29f:26c3, 2803:f800:50::6ca2:c2c3, 2a06:98c1:50::ac40:22c3, 108.162.194.195, 162.159.38.195 and 172.64.34.195.

tate.ns.cloudflare.com points to: 2606:4700:58::a29f:2cbf, 2803:f800:50::6ca2:c3bf, 2a06:98c1:50::ac40:23bf, 108.162.195.191, 162.159.44.191 and 172.64.35.191.

Mail Servers

dwu21.net is handled by two mail servers: mail.protonmail.ch and mailsec.protonmail.ch.

dwu21.net shares its mail server setup with other domains, including geoapi.net, mcclumpha.uk, tuxmelv.net, mixu.fi and laraguys.com.

The mail servers for dwu21.net are shared with other domains, for instance mtingenevacenter.com, riffle.ca, sarahscussel.com, aaronphilipose.com and dcel.net.

Host names with three IPs:

mail.protonmail.ch points to 176.119.200.128, 185.70.42.128 and 185.205.70.128

mailsec.protonmail.ch points to 176.119.200.129, 185.70.42.129 and 185.205.70.129