mail.cdbiz.pl - robtex.com

mail.cdbiz.pl

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:36d0🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:8e15🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.54.208Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.142.21🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.54.208, 172.67.142.21
IPv6 hints2606:4700:3033::6815:36d0, 2606:4700:3037::ac43:8e15
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=136, name=cloudflare-ech.com

cdbiz.pl

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:36d0🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:8e15🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.54.208Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.142.21🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjade.ns.cloudflare.com ⭐
NSmax.ns.cloudflare.com
MXmail.cdbiz.pl ⭐
TXTv=spf1 a mx include:_spf.atthost.pl -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.54.208, 172.67.142.21
IPv6 hints2606:4700:3033::6815:36d0, 2606:4700:3037::ac43:8e15
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=136, name=cloudflare-ech.com
SOAjade.ns.cloudflare.comdns@cloudflare.com serial=2409588600

MX for

cdbiz.pl

Same first word

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DNS History

9 records (4 active, 5 former)

201820192020202120222023202420252026A104.21.54.208172.67.142.212606:4700:3033::6815:36d02606:4700:3037::ac43:8e15188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::85.10.234.26
●A104.21.54.2082026-06-23 → 2026-08-11 · 5 obs
○ 2026-06-13 08:24:02
● 2026-06-23 20:43:12
○ 2026-06-24 02:35:58
● 2026-07-15 15:02:22
● 2026-08-11 18:44:30
●A172.67.142.212026-06-23 → 2026-08-11 · 5 obs
○ 2026-06-13 08:24:02
● 2026-06-23 20:43:12
○ 2026-06-24 02:35:58
● 2026-07-15 15:02:22
● 2026-08-11 18:44:30
○A188.114.96.02026-06-13 → 2026-06-24 · 6 obs
○ 2017-03-21 06:16:02
● 2026-06-13 08:24:02
○ 2026-06-23 20:43:12
● 2026-06-24 02:35:58
○ 2026-07-15 15:02:22
○ 2026-08-11 18:44:30
○A188.114.97.02026-06-13 → 2026-06-24 · 6 obs
○ 2017-03-21 06:16:02
● 2026-06-13 08:24:02
○ 2026-06-23 20:43:12
● 2026-06-24 02:35:58
○ 2026-07-15 15:02:22
○ 2026-08-11 18:44:30
●A2606:4700:3033::6815:36d02026-06-23 → 2026-08-11 · 5 obs
○ 2026-06-13 08:24:02
● 2026-06-23 20:43:12
○ 2026-06-24 02:35:58
● 2026-07-15 15:02:22
● 2026-08-11 18:44:30
●A2606:4700:3037::ac43:8e152026-06-23 → 2026-08-11 · 5 obs
○ 2026-06-13 08:24:02
● 2026-06-23 20:43:12
○ 2026-06-24 02:35:58
● 2026-07-15 15:02:22
● 2026-08-11 18:44:30
○A2a06:98c1:3120::2026-06-13 → 2026-06-24 · 6 obs
○ 2017-03-21 06:16:02
● 2026-06-13 08:24:02
○ 2026-06-23 20:43:12
● 2026-06-24 02:35:58
○ 2026-07-15 15:02:22
○ 2026-08-11 18:44:30
○A2a06:98c1:3121::2026-06-13 → 2026-06-24 · 6 obs
○ 2017-03-21 06:16:02
● 2026-06-13 08:24:02
○ 2026-06-23 20:43:12
● 2026-06-24 02:35:58
○ 2026-07-15 15:02:22
○ 2026-08-11 18:44:30
○A85.10.234.262017-03-21 → 2017-03-21 · 3 obs
● 2017-03-21 06:16:02
○ 2026-06-13 08:24:02
○ 2026-08-11 18:44:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
plh-dns.pl, f-dns.pl, a-dns.pl, d-dns.pl...-
cdbiz.plmax.ns.cloudflare.com, jade.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.167

NS records: max.ns.cloudflare.com, jade.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cdbiz.pl (unsigned zone)

⏱️ Timing

Total: 2243ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.54.208, 172.67.142.21
AAAA22606:4700:3037::ac43:8e15, 2606:4700:3033::6815:36d0
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

Mail Server Role

cdbiz.pl uses mail.cdbiz.pl as a mail server.

IP Addresses

mail.cdbiz.pl directs to four IP numbers, which are 104.21.54.208, 172.67.142.21, 2606:4700:3033::6815:36d0 and 2606:4700:3037::ac43:8e15.

mail.jonssonschool.org, www.020rr.com, ethiopianstoday.com and two other host names share IP numbers with mail.cdbiz.pl.