mail.flexrens.dk - robtex.com

mail.flexrens.dk

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:2460🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3030::ac43:bfc7🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.36.96Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.191.199🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.36.96, 172.67.191.199
IPv6 hints2606:4700:3030::6815:2460, 2606:4700:3030::ac43:bfc7
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=53, name=cloudflare-ech.com

flexrens.dk

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:2460🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3030::ac43:bfc7🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.36.96Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.191.199🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSnorm.ns.cloudflare.com ⭐
NSsara.ns.cloudflare.com
MXmx10.antispam.mailspamprotection.com ⭐
MXmx20.antispam.mailspamprotection.com(20)
MXmx30.antispam.mailspamprotection.com(30)
TXTgoogle-site-verification=uL92JoIHGXmXeQbUCLjMeQVfyEGx1Ab_9x4Uz5CS3QI
TXTv=spf1 +a +mx +ip4:35.207.79.210 include:_spf.mailspamprotection.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.36.96, 172.67.191.199
IPv6 hints2606:4700:3030::6815:2460, 2606:4700:3030::ac43:bfc7
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=53, name=cloudflare-ech.com
SOAnorm.ns.cloudflare.comdns@cloudflare.com serial=2400865217
WOT: SAFE (62/100)
WOT: SAFE (68/100)

Previously MX for

flexrens.dk

Same first word

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DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026A104.21.36.96172.67.191.1992606:4700:3030::6815:24602606:4700:3030::ac43:bfc7216.70.64.39
●A104.21.36.962026-02-18 → 2026-04-12 · 3 obs
○ 2016-08-08 06:54:50
● 2026-02-18 08:08:46
● 2026-04-12 13:34:48
●A172.67.191.1992026-02-18 → 2026-04-12 · 3 obs
○ 2016-08-08 06:54:50
● 2026-02-18 08:08:46
● 2026-04-12 13:34:48
○A216.70.64.392015-05-22 → 2016-08-08 · 4 obs
● 2015-05-22 02:33:38
● 2016-08-08 06:54:50
○ 2026-02-18 08:08:46
○ 2026-04-12 13:34:48
●A2606:4700:3030::6815:24602026-02-18 → 2026-04-12 · 3 obs
○ 2016-08-08 06:54:50
● 2026-02-18 08:08:46
● 2026-04-12 13:34:48
●A2606:4700:3030::ac43:bfc72026-02-18 → 2026-04-12 · 3 obs
○ 2016-08-08 06:54:50
● 2026-02-18 08:08:46
● 2026-04-12 13:34:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dkb.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk...-
flexrens.dknorm.ns.cloudflare.com, sara.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.193.134

NS records: norm.ns.cloudflare.com, sara.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for flexrens.dk (unsigned zone)

⏱️ Timing

Total: 472ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.191.199, 104.21.36.96
AAAA22606:4700:3030::ac43:bfc7, 2606:4700:3030::6815:2460
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

mail.flexrens.dk points to four IP numbers: 2606:4700:3030::6815:2460, 2606:4700:3030::ac43:bfc7, 104.21.36.96 and 172.67.191.199.

Other host names, for instance mail.talking-heads.net, masvs.in, vintage(0x706f726e).work, sysarabs.com and 35733g.com share IP numbers with mail.flexrens.dk.