mail.bertusdijkstra.nl - robtex.com

mail.bertusdijkstra.nl

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:1936🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:def7🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.25.54Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.222.247🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.25.54, 172.67.222.247
IPv6 hints2606:4700:3033::6815:1936, 2606:4700:3036::ac43:def7
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=139, name=cloudflare-ech.com

bertusdijkstra.nl

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:1936🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:def7🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.25.54Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.222.247🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScarlos.ns.cloudflare.com ⭐
NSjosephine.ns.cloudflare.com
MXvm11769.tttsoftware.nl ⭐
TXTgoogle-site-verification=vf1AXqpo-MA6kuwSgAQTQDNfrtoW__AAFJfTlLCuXNQ
TXTv=spf1 +a +mx ip6:2001:828:400:1039:a6::1/80 -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.25.54, 172.67.222.247
IPv6 hints2606:4700:3033::6815:1936, 2606:4700:3036::ac43:def7
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=139, name=cloudflare-ech.com
SOAcarlos.ns.cloudflare.comdns@cloudflare.com serial=2404033936

Previously MX for

www.bertusdijkstra.nl
bertusdijkstra.nl

Same first word

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DNS History

6 records (4 active, 2 former)

20162017201820192020202120222023202420252026A104.21.25.54172.67.222.2472606:4700:3033::6815:19362606:4700:3036::ac43:def7193.189.149.11084.22.101.111
●A104.21.25.542026-05-13 → 2026-05-13 · 2 obs
○ 2016-07-03 15:07:54
● 2026-05-13 05:54:34
●A172.67.222.2472026-05-13 → 2026-05-13 · 2 obs
○ 2016-07-03 15:07:54
● 2026-05-13 05:54:34
○A193.189.149.1102015-07-06 → 2016-02-08 · 4 obs
● 2015-07-06 20:42:50
● 2016-02-08 00:51:46
○ 2016-07-03 15:07:54
○ 2026-05-13 05:54:34
●A2606:4700:3033::6815:19362026-05-13 → 2026-05-13 · 2 obs
○ 2016-07-03 15:07:54
● 2026-05-13 05:54:34
●A2606:4700:3036::ac43:def72026-05-13 → 2026-05-13 · 2 obs
○ 2016-07-03 15:07:54
● 2026-05-13 05:54:34
○A84.22.101.1112016-07-03 → 2016-07-03 · 3 obs
○ 2016-02-08 00:51:46
● 2016-07-03 15:07:54
○ 2026-05-13 05:54:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nlns1.dns.nl, ns4.dns.nl, ns3.dns.nl-
bertusdijkstra.nlcarlos.ns.cloudflare.com, josephine.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.35.112

NS records: carlos.ns.cloudflare.com, josephine.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bertusdijkstra.nl (unsigned zone)

⏱️ Timing

Total: 469ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.222.247, 104.21.25.54
AAAA22606:4700:3036::ac43:def7, 2606:4700:3033::6815:1936
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

Four IP numbers are pointed to by mail.bertusdijkstra.nl: 2606:4700:3033::6815:1936, 2606:4700:3036::ac43:def7, 104.21.25.54 and 172.67.222.247.

other host names including squaredot.de, bfns.ru, japonstore.vn, www.catgriz.com and oligarsi.com share IP numbers with mail.bertusdijkstra.nl.