core-sd.com - robtex.com

core-sd.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:198f🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::ac43:864d🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.25.143Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.134.77🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSarushi.ns.cloudflare.com ⭐
A2606:4700:50::a29f:263d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarushi.ns.cloudflare.com
A2803:f800:50::6ca2:c23d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRarushi.ns.cloudflare.com
A2a06:98c1:50::ac40:223d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRarushi.ns.cloudflare.com
A108.162.194.61🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarushi.ns.cloudflare.com
A162.159.38.61Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarushi.ns.cloudflare.com
A172.64.34.61🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarushi.ns.cloudflare.com
NSrommy.ns.cloudflare.com
A2606:4700:58::a29f:2c14🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrommy.ns.cloudflare.com
A2803:f800:50::6ca2:c314🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRrommy.ns.cloudflare.com
A2a06:98c1:50::ac40:2314🇺🇸 Cloudflare2a06:98c1:50::/45
PTRrommy.ns.cloudflare.com
A108.162.195.20🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrommy.ns.cloudflare.com
A162.159.44.20Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrommy.ns.cloudflare.com
A172.64.35.20🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrommy.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.25.143, 172.67.134.77
IPv6 hints2606:4700:3030::6815:198f, 2606:4700:3031::ac43:864d
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=216, name=cloudflare-ech.com
SOAarushi.ns.cloudflare.comdns@cloudflare.com serial=2410065549

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1785262532

Same first word

core-sd.com

Similar names

sd-core.com
rs-code.de
creo-ds.com
s-coder.com
s-decor.vn
s-decor.de
re-docs.com
ecs-ord.jp
roces-d.com
eros-dc.com
sr-code.com
rs-code.com
os-cedr.cz
sod-rec.de
credo-s.ru
scor-ed.com
ds-core.com
coder-s.com
dc-eros.com
core-ds.de
code-rs.com
de-cors.com
d-score.com
er-docs.com
s-decor.ru
s-codre.ru

DNS History

15 records (6 active, 9 former)

2017201820192020202120222023202420252026NSarushi.ns.cloudflare.comrommy.ns.cloudflare.comdns10.hichina.comdns9.hichina.comA104.21.25.143172.67.134.772606:4700:3030::6815:198f2606:4700:3031::ac43:864d121.42.101.81188.114.96.0188.114.97.02606:4700:3033::6815:198f2606:4700:3036::ac43:864d2a06:98c1:3120::2a06:98c1:3121::
●NSarushi.ns.cloudflare.com2026-05-15 → 2026-07-28 · 3 obs
○ 2016-12-16 21:13:30
● 2026-05-15 22:46:00
● 2026-07-28 18:40:36
○NSdns10.hichina.com2016-12-16 → 2016-12-16 · 3 obs
● 2016-12-16 21:13:30
○ 2026-05-15 22:46:00
○ 2026-07-28 18:40:36
○NSdns9.hichina.com2016-12-16 → 2016-12-16 · 3 obs
● 2016-12-16 21:13:30
○ 2026-05-15 22:46:00
○ 2026-07-28 18:40:36
●NSrommy.ns.cloudflare.com2026-05-15 → 2026-07-28 · 3 obs
○ 2016-12-16 21:13:30
● 2026-05-15 22:46:00
● 2026-07-28 18:40:36
●A104.21.25.1432026-05-26 → 2026-07-28 · 3 obs
○ 2026-05-15 22:46:00
● 2026-05-26 01:45:58
● 2026-07-28 18:40:36
○A121.42.101.812016-12-16 → 2016-12-16 · 3 obs
● 2016-12-16 21:13:30
○ 2026-05-15 22:46:00
○ 2026-07-28 18:40:36
●A172.67.134.772026-05-26 → 2026-07-28 · 3 obs
○ 2026-05-15 22:46:00
● 2026-05-26 01:45:58
● 2026-07-28 18:40:36
○A188.114.96.02026-05-15 → 2026-05-15 · 4 obs
○ 2016-12-16 21:13:30
● 2026-05-15 22:46:00
○ 2026-05-26 01:45:58
○ 2026-07-28 18:40:36
○A188.114.97.02026-05-15 → 2026-05-15 · 4 obs
○ 2016-12-16 21:13:30
● 2026-05-15 22:46:00
○ 2026-05-26 01:45:58
○ 2026-07-28 18:40:36
●A2606:4700:3030::6815:198f2026-06-30 → 2026-07-28 · 3 obs
○ 2026-06-11 13:12:32
● 2026-06-30 18:40:02
● 2026-07-28 18:40:36
●A2606:4700:3031::ac43:864d2026-06-30 → 2026-07-28 · 3 obs
○ 2026-06-11 13:12:32
● 2026-06-30 18:40:02
● 2026-07-28 18:40:36
○A2606:4700:3033::6815:198f2026-05-26 → 2026-06-11 · 5 obs
○ 2026-05-15 22:46:00
● 2026-05-26 01:45:58
● 2026-06-11 13:12:32
○ 2026-06-30 18:40:02
○ 2026-07-28 18:40:36
○A2606:4700:3036::ac43:864d2026-05-26 → 2026-06-11 · 5 obs
○ 2026-05-15 22:46:00
● 2026-05-26 01:45:58
● 2026-06-11 13:12:32
○ 2026-06-30 18:40:02
○ 2026-07-28 18:40:36
○A2a06:98c1:3120::2026-05-15 → 2026-05-15 · 4 obs
○ 2016-12-16 21:13:30
● 2026-05-15 22:46:00
○ 2026-05-26 01:45:58
○ 2026-07-28 18:40:36
○A2a06:98c1:3121::2026-05-15 → 2026-05-15 · 4 obs
○ 2016-12-16 21:13:30
● 2026-05-15 22:46:00
○ 2026-05-26 01:45:58
○ 2026-07-28 18:40:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
core-sd.comarushi.ns.cloudflare.com, rommy.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.61

NS records: arushi.ns.cloudflare.com, rommy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for core-sd.com (unsigned zone)

⏱️ Timing

Total: 167ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.25.143, 172.67.134.77
AAAA22606:4700:3030::6815:198f, 2606:4700:3031::ac43:864d
NS2arushi.ns.cloudflare.com, rommy.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1arushi.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (arushi.ns.cloudflare.com, arushi.ns.cloudflare.com, arushi.ns.cloudflare.com...)

Analysis

IP Addresses

core-sd.com points to the four IP addresses 104.21.25.143, 172.67.134.77, 2606:4700:3030::6815:198f and 2606:4700:3031::ac43:864d.

Additional host names — kadinkabserambarat.org, t8n2r.com, romarins.com and two others — share IP numbers with core-sd.com.

Name Servers

DNS delegation for core-sd.com points to two name servers: arushi.ns.cloudflare.com and rommy.ns.cloudflare.com.

core-sd.com shares its name server setup with other domains, including yiju521.com, yujianet.com, sh-angli.com and two others.

At least some of core-sd.com's name servers are shared with other domains, for example rosehillrail.com, u8888.house, c2-apps.com and two more.

It is common for these name servers to be used in conjunction with the name servers nova.ns.cloudflare.com, eoin.ns.cloudflare.com and sandra.ns.cloudflare.com.

Host names with 6 IP numbers:

arushi.ns.cloudflare.com has IP addresses 108.162.194.61, 162.159.38.61 and 172.64.34.61, plus 3 other.

rommy.ns.cloudflare.com has IP addresses 108.162.195.20, 162.159.44.20 and 172.64.35.20, plus 3 other.