mail.codeblock.co.za - dns.ninja

mail.codeblock.co.za

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:d74f🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:5dd8🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.93.216Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.215.79🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.93.216, 172.67.215.79
IPv6 hints2606:4700:3030::ac43:d74f, 2606:4700:3034::6815:5dd8
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=107, name=cloudflare-ech.com

codeblock.co.za

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:d74f🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:5dd8🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.93.216Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.215.79🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSderek.ns.cloudflare.com ⭐
NSraegan.ns.cloudflare.com
MXmail.codeblock.co.za ⭐
MXmx1.tld-mx.com(10)
TXTv=spf1 +a +mx ip4:169.239.217.61 include:_spf.tld-mx.com include:host.blusilv...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.93.216, 172.67.215.79
IPv6 hints2606:4700:3030::ac43:d74f, 2606:4700:3034::6815:5dd8
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=107, name=cloudflare-ech.com
SOAderek.ns.cloudflare.comdns@cloudflare.com serial=2409643636

MX for

codeblock.co.za

Same first word

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DNS History

9 records (4 active, 5 former)

202120222023202420252026A104.21.93.216172.67.215.792606:4700:3030::ac43:d74f2606:4700:3034::6815:5dd8172.64.80.12606:4700:130:436c:6f75:6466:6c61:72652606:4700:3032::ac43:d74f2606:4700:3033::6815:5dd835.239.157.20
●A104.21.93.2162026-03-01 → 2026-08-04 · 6 obs
○ 2020-04-14 11:11:08
● 2026-03-01 04:25:04
● 2026-03-03 00:55:40
○ 2026-03-04 03:55:46
● 2026-03-08 16:12:14
● 2026-08-04 03:00:02
○A172.64.80.12026-03-04 → 2026-03-04 · 4 obs
○ 2026-03-03 00:55:40
● 2026-03-04 03:55:46
○ 2026-03-08 16:12:14
○ 2026-08-04 03:00:02
●A172.67.215.792026-03-01 → 2026-08-04 · 6 obs
○ 2020-04-14 11:11:08
● 2026-03-01 04:25:04
● 2026-03-03 00:55:40
○ 2026-03-04 03:55:46
● 2026-03-08 16:12:14
● 2026-08-04 03:00:02
○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-01 → 2026-03-01 · 4 obs
○ 2020-04-14 11:11:08
● 2026-03-01 04:25:04
○ 2026-03-03 00:55:40
○ 2026-08-04 03:00:02
●A2606:4700:3030::ac43:d74f2026-06-27 → 2026-08-04 · 3 obs
○ 2026-03-08 16:12:14
● 2026-06-27 13:50:50
● 2026-08-04 03:00:02
○A2606:4700:3032::ac43:d74f2026-03-03 → 2026-03-03 · 4 obs
○ 2026-03-01 04:25:04
● 2026-03-03 00:55:40
○ 2026-06-27 13:50:50
○ 2026-08-04 03:00:02
○A2606:4700:3033::6815:5dd82026-03-03 → 2026-03-03 · 4 obs
○ 2026-03-01 04:25:04
● 2026-03-03 00:55:40
○ 2026-06-27 13:50:50
○ 2026-08-04 03:00:02
●A2606:4700:3034::6815:5dd82026-06-27 → 2026-08-04 · 3 obs
○ 2026-03-08 16:12:14
● 2026-06-27 13:50:50
● 2026-08-04 03:00:02
○A35.239.157.202020-04-14 → 2020-04-14 · 3 obs
● 2020-04-14 11:11:08
○ 2026-03-01 04:25:04
○ 2026-08-04 03:00:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
zaza1.dnsnode.net, nsza.is.co.za, za-ns.anycast.pch.net-
codeblock.co.zaderek.ns.cloudflare.com, raegan.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.38.158

NS records: derek.ns.cloudflare.com, raegan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for codeblock.co.za (unsigned zone)

⏱️ Timing

Total: 661ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.215.79, 104.21.93.216
AAAA22606:4700:3034::6815:5dd8, 2606:4700:3030::ac43:d74f
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

Mail Server Role

codeblock.co.za uses mail.codeblock.co.za as a mail server.

mx1.tld-mx.com routinely functions as a mail server together with mail.codeblock.co.za.

IP Addresses

mail.codeblock.co.za resolves to four IP addresses: 104.21.93.216, 172.67.215.79, 2606:4700:3030::ac43:d74f and 2606:4700:3034::6815:5dd8.

codeblock.co.za, mesh-forwarder-integration-path.in.net, uruguay-blogs.com and two other host names share IP numbers with mail.codeblock.co.za.