core-server.io - robtex.com

core-server.io

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:b8c8🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:4c05🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.76.5Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.184.200🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSfatima.ns.cloudflare.com ⭐
A2606:4700:50::a29f:26bc🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRfatima.ns.cloudflare.com
A2803:f800:50::6ca2:c2bc🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRfatima.ns.cloudflare.com
A2a06:98c1:50::ac40:22bc🇺🇸 Cloudflare2a06:98c1:50::/45
PTRfatima.ns.cloudflare.com
A108.162.194.188🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRfatima.ns.cloudflare.com
A162.159.38.188Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRfatima.ns.cloudflare.com
A172.64.34.188🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRfatima.ns.cloudflare.com
NSfred.ns.cloudflare.com
A2606:4700:58::adf5:3b71🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRfred.ns.cloudflare.com
A2803:f800:50::6ca2:c171🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRfred.ns.cloudflare.com
A2a06:98c1:50::ac40:2171🇺🇸 Cloudflare2a06:98c1:50::/45
PTRfred.ns.cloudflare.com
A108.162.193.113🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRfred.ns.cloudflare.com
A172.64.33.113🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRfred.ns.cloudflare.com
A173.245.59.113🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRfred.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.76.5, 172.67.184.200
IPv6 hints2606:4700:3032::ac43:b8c8, 2606:4700:3036::6815:4c05
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=234, name=cloudflare-ech.com
SOAfatima.ns.cloudflare.comdns@cloudflare.com serial=2410071799

io

DNSSEC🔒 Signed (DS record present)
NSa0.nic.io ⭐
NSa2.nic.io
NSb0.nic.io
NSc0.nic.io
SOAa0.nic.iohostmaster@donuts.email serial=1785523110

Same first word

core-server.net
core-server.host
core-server.de
core-server.be
core-server.s3-website-us-east-1.amazonaws.com
core-server.io

Similar names

server-core.de

DNS History

8 records (6 active, 2 former)

NSfatima.ns.cloudflare.comfred.ns.cloudflare.comA104.21.76.5172.67.184.2002606:4700:3032::ac43:b8c82606:4700:3036::6815:4c052606:4700:3031::6815:4c052606:4700:3036::ac43:b8c8
●NSfatima.ns.cloudflare.com2026-05-17 → 2026-07-31 · 2 obs
● 2026-05-17 06:08:10
● 2026-07-31 18:48:08
●NSfred.ns.cloudflare.com2026-05-17 → 2026-07-31 · 2 obs
● 2026-05-17 06:08:10
● 2026-07-31 18:48:08
●A104.21.76.52026-05-17 → 2026-07-31 · 2 obs
● 2026-05-17 06:08:10
● 2026-07-31 18:48:08
●A172.67.184.2002026-05-17 → 2026-07-31 · 2 obs
● 2026-05-17 06:08:10
● 2026-07-31 18:48:08
○A2606:4700:3031::6815:4c052026-05-17 → 2026-05-22 · 4 obs
● 2026-05-17 06:08:10
● 2026-05-22 20:21:02
○ 2026-06-28 16:33:28
○ 2026-07-31 18:48:08
●A2606:4700:3032::ac43:b8c82026-06-28 → 2026-07-31 · 3 obs
○ 2026-05-22 20:21:02
● 2026-06-28 16:33:28
● 2026-07-31 18:48:08
●A2606:4700:3036::6815:4c052026-06-28 → 2026-07-31 · 3 obs
○ 2026-05-22 20:21:02
● 2026-06-28 16:33:28
● 2026-07-31 18:48:08
○A2606:4700:3036::ac43:b8c82026-05-17 → 2026-05-22 · 4 obs
● 2026-05-17 06:08:10
● 2026-05-22 20:21:02
○ 2026-06-28 16:33:28
○ 2026-07-31 18:48:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
ioc0.nic.io, a2.nic.io, a0.nic.io, b0.nic.io-
core-server.iofatima.ns.cloudflare.com, fred.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.38.188

NS records: fatima.ns.cloudflare.com, fred.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for core-server.io (unsigned zone)

⏱️ Timing

Total: 363ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.76.5, 172.67.184.200
AAAA22606:4700:3032::ac43:b8c8, 2606:4700:3036::6815:4c05
NS2fatima.ns.cloudflare.com, fred.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1fatima.ns.cloudflare.com dns.cloudflare.

Analysis

IP Addresses

core-server.io has four IP addresses: 104.21.76.5, 172.67.184.200, 2606:4700:3032::ac43:b8c8 and 2606:4700:3036::6815:4c05.

Additional host names — kancelaria-roczkowski.pl, zuipianxuziyanzouqiyabu.bond, sebangsa.com and two others — share IP numbers with core-server.io.

Name Servers

The NS records for core-server.io delegate to fatima.ns.cloudflare.com and fred.ns.cloudflare.com.

core-server.io shares its name server setup with other domains, including vip888casino.top, peterchen.io, mayduavong.mobi and two others.

core-server.io partially shares its NS delegation with several other domains, including unioninfra-2025.pics, burenawoaanalytics21.sbs, sylviasignal.digital and two others.

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

Host names with 6 IP numbers:

fatima.ns.cloudflare.com maps to 108.162.194.188, 162.159.38.188, 172.64.34.188 and 3 additional IP addresses.

fred.ns.cloudflare.com maps to 108.162.193.113, 172.64.33.113, 173.245.59.113 and 3 additional IP addresses.