sof.edu.vn - dns.ninja

sof.edu.vn

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:4c62🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::ac43:c0ac🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.76.98Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.192.172🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSisaac.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3bb1🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRisaac.ns.cloudflare.com
A2803:f800:50::6ca2:c1b1🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRisaac.ns.cloudflare.com
A2a06:98c1:50::ac40:21b1🇺🇸 Cloudflare2a06:98c1:50::/45
PTRisaac.ns.cloudflare.com
A108.162.193.177🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRisaac.ns.cloudflare.com
A172.64.33.177🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRisaac.ns.cloudflare.com
A173.245.59.177🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRisaac.ns.cloudflare.com
NSrosalyn.ns.cloudflare.com
A2606:4700:50::a29f:263b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrosalyn.ns.cloudflare.com
A2803:f800:50::6ca2:c23b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRrosalyn.ns.cloudflare.com
A2a06:98c1:50::ac40:223b🇺🇸 Cloudflare2a06:98c1:50::/45
PTRrosalyn.ns.cloudflare.com
A108.162.194.59🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrosalyn.ns.cloudflare.com
A162.159.38.59Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrosalyn.ns.cloudflare.com
A172.64.34.59🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrosalyn.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.76.98, 172.67.192.172
IPv6 hints2606:4700:3033::6815:4c62, 2606:4700:3033::ac43:c0ac
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=134, name=cloudflare-ech.com
SOAisaac.ns.cloudflare.comdns@cloudflare.com serial=2405811623

edu.vn

DNSSEC⚠️ Not signed
NSdns-master.vnnic.vn ⭐
NSa.dns-servers.vn ⚠️ Not in parent delegation
NSb.dns-servers.vn ⚠️ Not in parent delegation
NSc.dns-servers.vn ⚠️ Not in parent delegation
NSd.dns-servers.vn ⚠️ Not in parent delegation
NSe.dns-servers.vn ⚠️ Not in parent delegation
NSf.dns-servers.vn ⚠️ Not in parent delegation
NSg.dns-servers.vn ⚠️ Not in parent delegation
NSh.dns-servers.vn ⚠️ Not in parent delegation
SOAdns-master.vnnic.vnpostmaster@vnnic.vn serial=2018572760

Subdomains

www.sof.edu.vn

Same first word

sof.fr
sof.dk
sof.cn
sof.co.id
sof.si
sof.fi
sof.es
sof.tv
sof.us
sof.center
sof.beauty
sof.edu.vn
sof.ee
sof.org.nz
sof.gr
sof.org.br
sof.mobi
sof.nu
sof.in
sof.info
sof.sg
sof.rs
sof.ca
sof.mx
sof.com.vn
sof.dance
sof.edu
sof.ch
sof.sk
sof.ru
sof.az
sof.cl
sof.news
sof.to
sof.one
sof.de
sof.su
sof.org.in
sof.se
sof.it
sof.pl
sof.bet
sof.co.in
sof.com
sof.net
sof.photos
sof.co
sof.com.pl
sof.me
sof.vn
sof.edu.pl
sof.altervista.org
sof.at
sof.bg
sof.net.cn
sof.lt
sof.be

Similar names

sfo.jp
fso.info
fso.net
ofs.se
fos.support
fos.co.th
sfo.com.ua
sfo.fi
fos.or.kr
sfo.govt.nz
ofs.by
fos.consulting
fso.cn
fos.ai
fso.gov
sfo.ca
osf.bg
osf.co
osf.fi
osf.jp
fso.de
osf.cc
sfo.pl
fso.co.nz
ofs.edu.sg
fso.me
osf.cn
fso.nu
fso.gov.ru
ofs.ru
fos.info
osf.eu
ofs.net.tr
fos.cc
fso.es
osf.co.kr
fos.de
ofs.com
fso.com.cn
sfo.co
osf.pe
fso.be
sfo.su
fso.it
sfo.se
osf.am
fso.ovh
fso.vg
ofs.be
ofs.qa
fos.com
fos.es
ofs.cz
sfo.mobi
fos.ngo
fos.art.br
sfo.tw
fos.dk
sfo.mx
osf.digital
ofs.org.ar
fos.com.ar
fos.in
osf.nl
sfo.biz
osf.ro
ofs.ro
fos.com.tw
fos.world
sfo.kz
fos.ie
osf.kr
fos.lt
fso.pl
fos.net
ofs.co.il
ofs.org.co
ofs.dk
fos.fi
ofs.cc
ofs.mo.it
sfo.us
ofs.in
sfo.ws
fso.co.ir
sfo.in
ofs.sh.cn
fos.com.my
sfo.cl
osf.es
ofs.kr
osf.to
sfo.net.cn
fso.se
osf.no
osf.nu
fos.uk.com
sfo.gotdns.com
ofs.hu
sfo.org
fso.biz
sfo.co.il
fos.edu.om
fos.eu
osf.care
fso.pt
ofs.su
ofs.equipment
fos.company
ofs.es
fos.sg
fos.com.au
osf.ie
sfo.me
osf.se
osf.cz
fos.ro
osf.or.jp
osf.lt
ofs.nu
fos.hu
fos.gg
osf.jobs
sfo.de
ofs.info
osf.org.za
fos.org.il
ofs.org.my
fso.us
ofs.org.br
sfo.ru
osf.ink
sfo.ch
osf.pt
sfo.no
sfo.gov
osf.org.ua
sfo.at
fso.eu
fso.no
sfo.com.br
fos.org
fos.ink
sfo.gov.uk
fos.co.uk
fos.org.uk
sfo.cn

DNS History

16 records (6 active, 10 former)

20192020202120222023202420252026NSisaac.ns.cloudflare.comrosalyn.ns.cloudflare.comns1.nina.vnns2.nina.vnMXmail.sof.edu.vnA104.21.76.98172.67.192.1722606:4700:3033::6815:4c622606:4700:3033::ac43:c0ac172.64.80.1188.114.96.0188.114.97.0203.113.172.1482606:4700:130:436c:6f75:6466:6c61:72652a06:98c1:3120::2a06:98c1:3121::
●NSisaac.ns.cloudflare.com2026-02-23 → 2026-06-11 · 3 obs
○ 2018-05-15 14:18:40
● 2026-02-23 09:38:12
● 2026-06-11 18:47:42
○NSns1.nina.vn2018-05-15 → 2018-05-15 · 3 obs
● 2018-05-15 14:18:40
○ 2026-02-23 09:38:12
○ 2026-06-11 18:47:42
○NSns2.nina.vn2018-05-15 → 2018-05-15 · 3 obs
● 2018-05-15 14:18:40
○ 2026-02-23 09:38:12
○ 2026-06-11 18:47:42
●NSrosalyn.ns.cloudflare.com2026-02-23 → 2026-06-11 · 3 obs
○ 2018-05-15 14:18:40
● 2026-02-23 09:38:12
● 2026-06-11 18:47:42
○MXmail.sof.edu.vn2018-05-15 → 2018-05-15 · 3 obs
● 2018-05-15 14:18:40
○ 2026-02-23 09:38:12
○ 2026-06-11 18:47:42
●A104.21.76.982026-03-23 → 2026-06-11 · 6 obs
○ 2026-03-20 01:49:02
● 2026-03-23 17:41:28
● 2026-05-10 16:03:42
○ 2026-05-19 11:33:52
● 2026-05-26 11:58:06
● 2026-06-11 18:47:42
○A172.64.80.12026-02-23 → 2026-03-20 · 5 obs
○ 2018-05-15 14:18:40
● 2026-02-23 09:38:12
● 2026-03-20 01:49:02
○ 2026-03-23 17:41:28
○ 2026-06-11 18:47:42
●A172.67.192.1722026-03-23 → 2026-06-11 · 6 obs
○ 2026-03-20 01:49:02
● 2026-03-23 17:41:28
● 2026-05-10 16:03:42
○ 2026-05-19 11:33:52
● 2026-05-26 11:58:06
● 2026-06-11 18:47:42
○A188.114.96.02026-05-19 → 2026-05-19 · 5 obs
○ 2026-02-23 09:38:12
○ 2026-05-10 16:03:42
● 2026-05-19 11:33:52
○ 2026-05-26 11:58:06
○ 2026-06-11 18:47:42
○A188.114.97.02026-05-19 → 2026-05-19 · 5 obs
○ 2026-02-23 09:38:12
○ 2026-05-10 16:03:42
● 2026-05-19 11:33:52
○ 2026-05-26 11:58:06
○ 2026-06-11 18:47:42
○A203.113.172.1482018-05-15 → 2018-05-15 · 3 obs
● 2018-05-15 14:18:40
○ 2026-02-23 09:38:12
○ 2026-06-11 18:47:42
○A2606:4700:130:436c:6f75:6466:6c61:72652026-02-23 → 2026-03-20 · 5 obs
○ 2018-05-15 14:18:40
● 2026-02-23 09:38:12
● 2026-03-20 01:49:02
○ 2026-03-23 17:41:28
○ 2026-06-11 18:47:42
●A2606:4700:3033::6815:4c622026-03-23 → 2026-06-11 · 6 obs
○ 2026-03-20 01:49:02
● 2026-03-23 17:41:28
● 2026-05-10 16:03:42
○ 2026-05-19 11:33:52
● 2026-05-26 11:58:06
● 2026-06-11 18:47:42
●A2606:4700:3033::ac43:c0ac2026-03-23 → 2026-06-11 · 6 obs
○ 2026-03-20 01:49:02
● 2026-03-23 17:41:28
● 2026-05-10 16:03:42
○ 2026-05-19 11:33:52
● 2026-05-26 11:58:06
● 2026-06-11 18:47:42
○A2a06:98c1:3120::2026-05-19 → 2026-05-19 · 5 obs
○ 2026-02-23 09:38:12
○ 2026-05-10 16:03:42
● 2026-05-19 11:33:52
○ 2026-05-26 11:58:06
○ 2026-06-11 18:47:42
○A2a06:98c1:3121::2026-05-19 → 2026-05-19 · 5 obs
○ 2026-02-23 09:38:12
○ 2026-05-10 16:03:42
● 2026-05-19 11:33:52
○ 2026-05-26 11:58:06
○ 2026-06-11 18:47:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vna.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn, c.dns-servers.vn...-
sof.edu.vnisaac.ns.cloudflare.com, rosalyn.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.193.177

NS records: isaac.ns.cloudflare.com, rosalyn.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sof.edu.vn (unsigned zone)

⏱️ Timing

Total: 1089ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.192.172, 104.21.76.98
AAAA22606:4700:3033::6815:4c62, 2606:4700:3033::ac43:c0ac
NS2isaac.ns.cloudflare.com, rosalyn.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1isaac.ns.cloudflare.com dns.cloudflare.c

Analysis

Hierarchy

sof.edu.vn is the parent zone for www.sof.edu.vn.

IP Addresses

sof.edu.vn points to four IP numbers: 104.21.76.98, 172.67.192.172, 2606:4700:3033::6815:4c62 and 2606:4700:3033::ac43:c0ac.

Additional host names — creamretin.com, im-tek.com.tr, 555.(0x706f726e) and two others — share IP numbers with sof.edu.vn.

Name Servers

sof.edu.vn is served by two delegated name servers, isaac.ns.cloudflare.com and rosalyn.ns.cloudflare.com.

sof.edu.vn shares its name server setup with other domains, including gbpro.download, romaniatraveldestinations.com, k0rdf.net and two others.

sof.edu.vn partially shares its NS delegation with several other domains, including mt.gov.sa, emsinsider.com, dibellagroup.com.au and two others.

These name servers often co-occur with the name servers barbara.ns.cloudflare.com.

Host names with 6 IP numbers:

isaac.ns.cloudflare.com carries IP addresses 108.162.193.177, 172.64.33.177 and 173.245.59.177, with 3 other addresses beyond those.

rosalyn.ns.cloudflare.com carries IP addresses 108.162.194.59, 162.159.38.59 and 172.64.34.59, with 3 other addresses beyond those.