with-u.co - robtex.com

with-u.co

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:c1c4🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:5a1d🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.90.29Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.193.196🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSishaan.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2cd5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRishaan.ns.cloudflare.com
A2803:f800:50::6ca2:c3d5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRishaan.ns.cloudflare.com
A2a06:98c1:50::ac40:23d5🇺🇸 Cloudflare2a06:98c1:50::/45
PTRishaan.ns.cloudflare.com
A108.162.195.213🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRishaan.ns.cloudflare.com
A162.159.44.213Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRishaan.ns.cloudflare.com
A172.64.35.213🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRishaan.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
MXmail.with-u.co ⭐
A78.189.17.28🇹🇷 TTNET78.189.17.0/24
PTRmail.with-u.co
TXTv=spf1 mx ip4:78.189.17.28 -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.90.29, 172.67.193.196
IPv6 hints2606:4700:3030::ac43:c1c4, 2606:4700:3035::6815:5a1d
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=152, name=cloudflare-ech.com
SOAishaan.ns.cloudflare.comdns@cloudflare.com serial=2399990437

co

DNSSEC🔒 Signed (DS record present)
NSns0.centralnic.net ⭐
NSa.registrydns.co
NSb.registrydns.co
NSc.registrydns.co
NSd.registrydns.co
SOAns0.centralnic.nethostmaster@centralnic.net serial=1759632872

Subdomains

mail.with-u.co

Same first word

with-u.net
with-u.co
with-u.nl

DNS History

8 records (7 active, 1 former)

NSishaan.ns.cloudflare.comrosalyn.ns.cloudflare.comMXmail.with-u.coA104.21.90.29172.67.193.1962606:4700:3030::ac43:c1c42606:4700:3035::6815:5a1d2606:4700:130:436c:6f75:6466:6c61:7265
●NSishaan.ns.cloudflare.com2026-02-18 → 2026-04-13 · 2 obs
● 2026-02-18 06:56:14
● 2026-04-13 08:09:30
●NSrosalyn.ns.cloudflare.com2026-02-18 → 2026-04-13 · 2 obs
● 2026-02-18 06:56:14
● 2026-04-13 08:09:30
●MXmail.with-u.co2026-02-18 → 2026-04-13 · 2 obs
● 2026-02-18 06:56:14
● 2026-04-13 08:09:30
●A104.21.90.292026-02-18 → 2026-04-13 · 2 obs
● 2026-02-18 06:56:14
● 2026-04-13 08:09:30
●A172.67.193.1962026-02-18 → 2026-04-13 · 2 obs
● 2026-02-18 06:56:14
● 2026-04-13 08:09:30
○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-13 → 2026-03-13 · 4 obs
○ 2026-03-09 21:40:44
● 2026-03-13 23:50:44
○ 2026-03-14 00:27:02
○ 2026-04-13 08:09:30
●A2606:4700:3030::ac43:c1c42026-02-18 → 2026-04-13 · 5 obs
● 2026-02-18 06:56:14
● 2026-03-09 21:40:44
○ 2026-03-13 23:50:44
● 2026-03-14 00:27:02
● 2026-04-13 08:09:30
●A2606:4700:3035::6815:5a1d2026-02-18 → 2026-04-13 · 5 obs
● 2026-02-18 06:56:14
● 2026-03-09 21:40:44
○ 2026-03-13 23:50:44
● 2026-03-14 00:27:02
● 2026-04-13 08:09:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coc.registrydns.co, b.registrydns.co, d.registrydns.co, a.registrydns.co-
with-u.coishaan.ns.cloudflare.com, rosalyn.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.34.59

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for with-u.co (unsigned zone)

⏱️ Timing

Total: 446ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.193.196, 104.21.90.29
AAAA22606:4700:3030::ac43:c1c4, 2606:4700:3035::6815:5a1d
NS2ishaan.ns.cloudflare.com, rosalyn.ns.cloudflare.com
MX1mail.with-u.co (pri: 10)
TXT1v=spf1 mx ip4:78.189.17.28 -all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1ishaan.ns.cloudflare.com dns.cloudflare.

Analysis

Hierarchy

The parent of mail.with-u.co is with-u.co.

IP Addresses

with-u.co maps to four IP numbers: 2606:4700:3030::ac43:c1c4, 2606:4700:3035::6815:5a1d, 104.21.90.29 and 172.67.193.196.

Other host names such as ksxjzs.com, inwa7.ssddnn.com, craigydon.co.uk, gtnclub.ssddnn.com and www.legabaskettv.it share IPs with with-u.co.

Name Servers

Two name servers ishaan.ns.cloudflare.com and rosalyn.ns.cloudflare.com handle the delegation for with-u.co.

with-u.co shares the same name server setup as other domains, for example tacka.ba, mhttcnetwork.org, gi888.cc, drugrehab-york.uk and medicare24bd.com.

with-u.co at least partially shares name servers with other domains, for example lootdest.org, quieromimoto.com, antykoncepcja.com.pl, truetoolparts.com and aldiwan.com.

Host names with six IP numbers:

ishaan.ns.cloudflare.com points to 2606:4700:58::a29f:2cd5, 2803:f800:50::6ca2:c3d5, 2a06:98c1:50::ac40:23d5, 108.162.195.213, 162.159.44.213 and 172.64.35.213.

rosalyn.ns.cloudflare.com points to 2606:4700:50::a29f:263b, 2803:f800:50::6ca2:c23b, 2a06:98c1:50::ac40:223b, 108.162.194.59, 162.159.38.59 and 172.64.34.59.

Mail Servers

The mail.with-u.co mail server handles with-u.co.

mail.with-u.co points to a single IP number: 78.189.17.28.