mail.konstruct.nl - robtex.com

mail.konstruct.nl

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:2fe9🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:ae79🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.47.233Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.174.121🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.47.233, 172.67.174.121
IPv6 hints2606:4700:3033::6815:2fe9, 2606:4700:3037::ac43:ae79
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=158, name=cloudflare-ech.com

konstruct.nl

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:2fe9🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:ae79🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.47.233Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.174.121🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSderek.ns.cloudflare.com ⭐
NSjill.ns.cloudflare.com
MXroute3.mx.cloudflare.net ⭐
MXroute2.mx.cloudflare.net(57)
MXroute1.mx.cloudflare.net(63)
TXTv=spf1 include:_spf.mx.cloudflare.net ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.47.233, 172.67.174.121
IPv6 hints2606:4700:3033::6815:2fe9, 2606:4700:3037::ac43:ae79
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=158, name=cloudflare-ech.com
SOAderek.ns.cloudflare.comdns@cloudflare.com serial=2401588885

Previously MX for

konstruct.nl

Same first word

mail.systems
mail.itigo.jp
mail.cl
mail.vc
mail.babymilk.jp
mail.gov.by
mail.chat
mail.fastvps.host
mail.style
mail.altervista.org
mail.monster
mail.ngo.za
mail.awsapps.com
mail.biz
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mail.jetzt
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mail.ru
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mail.myshopify.com
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mail.charity
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mail.ap.gov.br
mail.dp.ua
mail.myjino.ru
mail.space
mail.net.ph
mail.rr.gov.br
mail.read-books.org
mail.ilovecollege.info
mail.gmx
mail.info.pl
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mail.graphics
mail.lc
mail.city
mail.yt
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mail.ma
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mail.gov.af
mail.hashbang.sh
mail.mil.ru
mail.schwarz
mail.co.uk
mail.net.mk
mail.rj.gov.br
mail.freedesktop.org
mail.direct
mail.yandex
mail.sh.cn
mail.vacations
mail.my

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DNS History

11 records (4 active, 7 former)

20162017201820192020202120222023202420252026A104.21.47.233172.67.174.1212606:4700:3033::6815:2fe92606:4700:3037::ac43:ae79188.114.96.0188.114.97.02a01:7c8:eb:0:95:170:70:1162a06:98c1:3120::2a06:98c1:3121::37.34.59.13795.170.70.116
●A104.21.47.2332026-04-06 → 2026-04-17 · 3 obs
○ 2016-09-12 23:23:56
● 2026-04-06 21:53:10
● 2026-04-17 10:19:18
●A172.67.174.1212026-04-06 → 2026-04-17 · 3 obs
○ 2016-09-12 23:23:56
● 2026-04-06 21:53:10
● 2026-04-17 10:19:18
○A188.114.96.02026-04-06 → 2026-04-17 · 2 obs
○ 2026-04-06 21:53:10
○ 2026-04-17 10:19:18
○A188.114.97.02026-04-06 → 2026-04-17 · 2 obs
○ 2026-04-06 21:53:10
○ 2026-04-17 10:19:18
●A2606:4700:3033::6815:2fe92026-04-06 → 2026-04-17 · 3 obs
○ 2016-09-12 23:23:56
● 2026-04-06 21:53:10
● 2026-04-17 10:19:18
●A2606:4700:3037::ac43:ae792026-04-06 → 2026-04-17 · 3 obs
○ 2016-09-12 23:23:56
● 2026-04-06 21:53:10
● 2026-04-17 10:19:18
○A2a01:7c8:eb:0:95:170:70:1162016-09-12 → 2016-09-12 · 4 obs
○ 2016-01-22 09:27:36
● 2016-09-12 23:23:56
○ 2026-04-06 21:53:10
○ 2026-04-17 10:19:18
○A2a06:98c1:3120::2026-04-06 → 2026-04-17 · 2 obs
○ 2026-04-06 21:53:10
○ 2026-04-17 10:19:18
○A2a06:98c1:3121::2026-04-06 → 2026-04-17 · 2 obs
○ 2026-04-06 21:53:10
○ 2026-04-17 10:19:18
○A37.34.59.1372015-07-11 → 2015-11-09 · 4 obs
● 2015-07-11 06:52:14
● 2015-11-09 23:13:00
○ 2016-01-22 09:27:36
○ 2026-04-17 10:19:18
○A95.170.70.1162016-09-12 → 2016-09-12 · 4 obs
○ 2016-01-22 09:27:36
● 2016-09-12 23:23:56
○ 2026-04-06 21:53:10
○ 2026-04-17 10:19:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nlns3.dns.nl, ns1.dns.nl, ns4.dns.nl-
konstruct.nljill.ns.cloudflare.com, derek.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.59.154

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for konstruct.nl (unsigned zone)

⏱️ Timing

Total: 244ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.47.233, 172.67.174.121
AAAA22606:4700:3037::ac43:ae79, 2606:4700:3033::6815:2fe9
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

Four IP numbers are pointed to by mail.konstruct.nl: 2606:4700:3033::6815:2fe9, 2606:4700:3037::ac43:ae79, 104.21.47.233 and 172.67.174.121.

other host names including acgtut.com, jedar88vvip.space, duraplay.com.mx, putlocker-online.me and www.digitalwaters.net share IP numbers with mail.konstruct.nl.