mail.kerim.cfd - robtex.com

mail.kerim.cfd

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:1c2b🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:9039🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.28.43Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.144.57🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.28.43, 172.67.144.57
IPv6 hints2606:4700:3033::6815:1c2b, 2606:4700:3037::ac43:9039
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=59, name=cloudflare-ech.com

kerim.cfd

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:1c2b🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:9039🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.28.43Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.144.57🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSrandall.ns.cloudflare.com ⭐
NSteresa.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.28.43, 172.67.144.57
IPv6 hints2606:4700:3033::6815:1c2b, 2606:4700:3037::ac43:9039
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=59, name=cloudflare-ech.com
SOArandall.ns.cloudflare.comdns@cloudflare.com serial=2406122359
⚠️ On DNS blocklist: tif

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DNS History

4 records (4 active, 0 former)

A104.21.28.43172.67.144.572606:4700:3033::6815:1c2b2606:4700:3037::ac43:9039
●A104.21.28.432026-07-28 → 2026-08-02 · 2 obs
● 2026-07-28 09:26:08
● 2026-08-02 15:28:14
●A172.67.144.572026-07-28 → 2026-08-02 · 2 obs
● 2026-07-28 09:26:08
● 2026-08-02 15:28:14
●A2606:4700:3033::6815:1c2b2026-07-28 → 2026-08-02 · 2 obs
● 2026-07-28 09:26:08
● 2026-08-02 15:28:14
●A2606:4700:3037::ac43:90392026-07-28 → 2026-08-02 · 2 obs
● 2026-07-28 09:26:08
● 2026-08-02 15:28:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cfda.nic.cfd, c.nic.cfd, b.nic.cfd, d.nic.cfd-
kerim.cfdteresa.ns.cloudflare.com, randall.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.34.216

NS records: teresa.ns.cloudflare.com, randall.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kerim.cfd (unsigned zone)

⏱️ Timing

Total: 361ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.28.43, 172.67.144.57
AAAA22606:4700:3037::ac43:9039, 2606:4700:3033::6815:1c2b
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

mail.kerim.cfd directs to four IP numbers, which are 104.21.28.43, 172.67.144.57, 2606:4700:3033::6815:1c2b and 2606:4700:3037::ac43:9039.

Two other host names, along with stichting1913.nl, oj.kerim.cfd and scholasphere.net, also share IP numbers with mail.kerim.cfd.