referu.io - robtex.com

referu.io

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:2978🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:a4c1🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.41.120Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.164.193🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSalex.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b64🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalex.ns.cloudflare.com
A2803:f800:50::6ca2:c164🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRalex.ns.cloudflare.com
A2a06:98c1:50::ac40:2164🇺🇸 Cloudflare2a06:98c1:50::/45
PTRalex.ns.cloudflare.com
A108.162.193.100🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalex.ns.cloudflare.com
A172.64.33.100🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalex.ns.cloudflare.com
A173.245.59.100🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalex.ns.cloudflare.com
NSnia.ns.cloudflare.com
A2606:4700:50::adf5:3ad2🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnia.ns.cloudflare.com
A2803:f800:50::6ca2:c0d2🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnia.ns.cloudflare.com
A2a06:98c1:50::ac40:20d2🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnia.ns.cloudflare.com
A108.162.192.210🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnia.ns.cloudflare.com
A172.64.32.210🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnia.ns.cloudflare.com
A173.245.58.210🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnia.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.41.120, 172.67.164.193
IPv6 hints2606:4700:3030::6815:2978, 2606:4700:3037::ac43:a4c1
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=169, name=cloudflare-ech.com
SOAalex.ns.cloudflare.comdns@cloudflare.com serial=2403616192

io

DNSSEC🔒 Signed (DS record present)
NSa0.nic.io ⭐
NSa2.nic.io
NSb0.nic.io
NSc0.nic.io
SOAa0.nic.iohostmaster@donuts.email serial=1778633854

Same first word

referu.io
referu.co.uk
referu.in

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DNS History

6 records (6 active, 0 former)

NSalex.ns.cloudflare.comnia.ns.cloudflare.comA104.21.41.120172.67.164.1932606:4700:3030::6815:29782606:4700:3037::ac43:a4c1
●NSalex.ns.cloudflare.com2026-05-10 → 2026-05-13 · 2 obs
● 2026-05-10 18:02:24
● 2026-05-13 01:13:20
●NSnia.ns.cloudflare.com2026-05-10 → 2026-05-13 · 2 obs
● 2026-05-10 18:02:24
● 2026-05-13 01:13:20
●A104.21.41.1202026-05-10 → 2026-05-13 · 2 obs
● 2026-05-10 18:02:24
● 2026-05-13 01:13:20
●A172.67.164.1932026-05-10 → 2026-05-13 · 2 obs
● 2026-05-10 18:02:24
● 2026-05-13 01:13:20
●A2606:4700:3030::6815:29782026-05-10 → 2026-05-13 · 2 obs
● 2026-05-10 18:02:24
● 2026-05-13 01:13:20
●A2606:4700:3037::ac43:a4c12026-05-10 → 2026-05-13 · 2 obs
● 2026-05-10 18:02:24
● 2026-05-13 01:13:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
ioa0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io-
referu.ionia.ns.cloudflare.com, alex.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.100

NS records: nia.ns.cloudflare.com, alex.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for referu.io (unsigned zone)

⏱️ Timing

Total: 614ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.164.193, 104.21.41.120
AAAA22606:4700:3030::6815:2978, 2606:4700:3037::ac43:a4c1
NS2alex.ns.cloudflare.com, nia.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1alex.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

referu.io points to four IP numbers: 2606:4700:3030::6815:2978, 2606:4700:3037::ac43:a4c1, 104.21.41.120 and 172.67.164.193.

Other host names including www.gkssolution.com, kl8.co, huntpeck.com, appemporio.com and www.stam.uz share IP numbers with referu.io.

Name Servers

referu.io's delegation uses two name servers, alex.ns.cloudflare.com and nia.ns.cloudflare.com.

referu.io shares the same name server setup as other domains, for example siteservicesusa.com, adsinc.io, getpart.io, go8818.net and xn--72cbb5hgv1a0f2g.com.

referu.io at least partially shares name servers with other domains, including longtengsf.com, moplox.com, arjen.eu, newtektechnologysolutions.com and poisson.pages.dev.

These name servers are often used together with vera.ns.cloudflare.com.

Host names with six IP numbers:

alex.ns.cloudflare.com points to: 2606:4700:58::adf5:3b64, 2803:f800:50::6ca2:c164, 2a06:98c1:50::ac40:2164, 108.162.193.100, 172.64.33.100 and 173.245.59.100.

nia.ns.cloudflare.com points to: 2606:4700:50::adf5:3ad2, 2803:f800:50::6ca2:c0d2, 2a06:98c1:50::ac40:20d2, 108.162.192.210, 172.64.32.210 and 173.245.58.210.