sienc.vn - robtex.com

sienc.vn

DNSSEC⚠️ Not signed
A2606:4700:3034::ac43:de19🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:5b92🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.91.146Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.222.25🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSrazvan.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c4d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrazvan.ns.cloudflare.com
A2803:f800:50::6ca2:c34d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRrazvan.ns.cloudflare.com
A2a06:98c1:50::ac40:234d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRrazvan.ns.cloudflare.com
A108.162.195.77🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrazvan.ns.cloudflare.com
A162.159.44.77Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrazvan.ns.cloudflare.com
A172.64.35.77🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrazvan.ns.cloudflare.com
NSruth.ns.cloudflare.com
A2606:4700:50::adf5:3a8f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRruth.ns.cloudflare.com
A2803:f800:50::6ca2:c08f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRruth.ns.cloudflare.com
A2a06:98c1:50::ac40:208f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRruth.ns.cloudflare.com
A108.162.192.143🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRruth.ns.cloudflare.com
A172.64.32.143🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRruth.ns.cloudflare.com
A173.245.58.143🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRruth.ns.cloudflare.com
MXmail.sienc.vn ⭐
A118.69.170.114🇻🇳 FPT-AS-AP118.69.170.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 10th floor, MITEC Tower, Duong Dinh Nghe, Cau Giay, Hanoi
PTRgvn8.hanbiro.net
TXTv=spf1 ip4:118.69.170.114 ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.91.146, 172.67.222.25
IPv6 hints2606:4700:3034::ac43:de19, 2606:4700:3036::6815:5b92
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=109, name=cloudflare-ech.com
SOArazvan.ns.cloudflare.comdns@cloudflare.com serial=2408535931

vn

DNSSEC🔒 Signed (DS record present)
NSdns-master.vnnic.vn ⭐
NSa.dns-servers.vn
NSb.dns-servers.vn
NSc.dns-servers.vn
NSd.dns-servers.vn
NSe.dns-servers.vn
NSf.dns-servers.vn
NSg.dns-servers.vn
NSh.dns-servers.vn
SOAdns-master.vnnic.vnpostmaster@vnnic.vn serial=2030998126

Subdomains

mail.sienc.vn
erp.sienc.vn

Same first word

sienc.vn
sienc.square7.ch
sienc.co.kr

Similar names

enics.com
cisne.org.mx
scien.jp
cisne.com.pe
cesin.ru
cesin.fr
cnsei.com
nesic.ch
escin.cn
necis.de
niesc.k12.in.us
insec.cloud
insec.pl
nesci.ac.uk
nesic.co.jp
nisec.co.uk
since.es
inces.it
sinec.com
encis.org
since.com.au
iecns.com
senic.com
sinec.com.ar
cesni.eu
inesc.net
cisen.gob.mx
insce.ca
cines.fr
since.mx
cines.de
cines.com.py
nesci.org
sinec.com.vn
sneci.hu
scien.us
insec.in
ecins.net
inces.ws
insec.se
enics.ru
encis.eu
inesc.org.br
scien.se
ensci.co.uk
nesic.de
insec.su
ncsei.com
ecins.fr
isecn.in
cenis.it
necsi.it
sniec.au
cesni.org.ar
insec.be
scien.co
niesc.com
esinc.ca
encis.net
since.com
insec.pro
nesic.rs
censi.it
cines.info
sicen.net
encis.biz
senci.cn
since.it
necis.me
snice.gob.mx
cesin.pl
insec.de
inces.gob.ve
cesin.com.pl
since.be
nesic.com.br
nices.es
since.se
cenis.de
encis.coop
nices.com.cn
nesic.es
nices.com
insec.online
ensci.net
insec.ca
inesc.com
nisec.cn
ecsni.com
since.ch
cines.co.uk
since.cc
iensc.no-ip.biz
cnsie.cn
scien.cx
cisne.com.mx
senci.com.ua
cisne.mx

DNS History

9 records (7 active, 2 former)

NSrazvan.ns.cloudflare.comruth.ns.cloudflare.comMXmail.sienc.vnA104.21.91.146172.67.222.252606:4700:3034::ac43:de192606:4700:3036::6815:5b922606:4700:3033::ac43:de192606:4700:3037::6815:5b92
●NSrazvan.ns.cloudflare.com2026-05-20 → 2026-07-14 · 2 obs
● 2026-05-20 05:04:38
● 2026-07-14 23:45:02
●NSruth.ns.cloudflare.com2026-05-20 → 2026-07-14 · 2 obs
● 2026-05-20 05:04:38
● 2026-07-14 23:45:02
●MXmail.sienc.vn2026-05-20 → 2026-07-14 · 2 obs
● 2026-05-20 05:04:38
● 2026-07-14 23:45:02
●A104.21.91.1462026-05-20 → 2026-07-14 · 2 obs
● 2026-05-20 05:04:38
● 2026-07-14 23:45:02
●A172.67.222.252026-05-20 → 2026-07-14 · 2 obs
● 2026-05-20 05:04:38
● 2026-07-14 23:45:02
○A2606:4700:3033::ac43:de192026-05-20 → 2026-05-20 · 3 obs
● 2026-05-20 05:04:38
○ 2026-06-25 20:04:42
○ 2026-07-14 23:45:02
●A2606:4700:3034::ac43:de192026-06-25 → 2026-07-14 · 3 obs
○ 2026-05-20 05:04:38
● 2026-06-25 20:04:42
● 2026-07-14 23:45:02
●A2606:4700:3036::6815:5b922026-06-25 → 2026-07-14 · 3 obs
○ 2026-05-20 05:04:38
● 2026-06-25 20:04:42
● 2026-07-14 23:45:02
○A2606:4700:3037::6815:5b922026-05-20 → 2026-05-20 · 3 obs
● 2026-05-20 05:04:38
○ 2026-06-25 20:04:42
○ 2026-07-14 23:45:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vna.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...-
sienc.vnrazvan.ns.cloudflare.com, ruth.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.143

NS records: razvan.ns.cloudflare.com, ruth.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sienc.vn (unsigned zone)

⏱️ Timing

Total: 1726ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.222.25, 104.21.91.146
AAAA22606:4700:3036::6815:5b92, 2606:4700:3034::ac43:de19
NS2razvan.ns.cloudflare.com, ruth.ns.cloudflare.com
MX1mail.sienc.vn (pri: 10)
TXT1v=spf1 ip4:118.69.170.114 ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1razvan.ns.cloudflare.com dns.cloudflare.

Analysis

Hierarchy

sienc.vn serves as the parent of mail.sienc.vn and erp.sienc.vn.

IP Addresses

sienc.vn has four IP addresses: 104.21.91.146, 172.67.222.25, 2606:4700:3034::ac43:de19 and 2606:4700:3036::6815:5b92.

bungeglobalsa.org, novelasyrelatos.com, dc-baaedfa66779.watchthinkchat.com plus two other host names have IP numbers in common with sienc.vn.

Name Servers

sienc.vn is served by two delegated name servers, razvan.ns.cloudflare.com and ruth.ns.cloudflare.com.

The name server configuration of sienc.vn is shared with other domains, for instance trangiacomputer.vn, vinoargentino.com.br, chardhamhelicopters.com and two others.

sienc.vn has at least partial name server overlap with other domains, such as backboneconnect.co.uk, ebooknet.com, wcms.co.il and two others.

It is common to see these name servers used together with name servers lucy.ns.cloudflare.com and lilith.ns.cloudflare.com.

Hosts with 6 IP addresses each:

razvan.ns.cloudflare.com carries IP addresses 108.162.195.77, 162.159.44.77 and 172.64.35.77, with 3 other addresses beyond those.

ruth.ns.cloudflare.com carries IP addresses 108.162.192.143, 172.64.32.143 and 173.245.58.143, with 3 other addresses beyond those.

Mail Servers

sienc.vn uses one mail server — mail.sienc.vn.

There is one IP number for mail.sienc.vn: 118.69.170.114.