`fallback.extern-it.nl`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:51ca^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:a407^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.81.202^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.164.7^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.81.202, 172.67.164.7
		IPv6 hints	2606:4700:3034::6815:51ca, 2606:4700:3035::ac43:a407
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=59, name=cloudflare-ech.com

`extern-it.nl`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3034::6815:51ca^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:a407^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.81.202^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.164.7^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dilbert.ns.cloudflare.com` ⭐
NS	`violet.ns.cloudflare.com`
MX	`externit-nl01e.mail.protection.outlook.com` ⭐
TXT	`1password-site-verification=5OM55LGHHRAONECO5TS6OWY5Z4`
TXT	`Y7iG4Qnp9erwSqNLvcNrIDUg5xDgY6ig`
TXT	`_xfhc3x5s9rung5466l5n4gp1mkej8if`
TXT	`apple-domain-verification=itvsQS2qIH9pssnV`
TXT	`asv=eb1673c864af7ed1b6012fb3996dbec5`
TXT	`bastion365-domain-validation=6c79f88061c8`
TXT	`google-site-verification=4sZTfoMDxuaU6GTj8qbpS0tHUvm42trRhB9udmxcAvI`
TXT	`have-i-been-pwned-verification=dweb_0n4pssrv8rf8c2angolly1ub`
TXT	`v=NTA7516-1;startdate=2019-06;enddate=2029-09;provider=bastionic;ntamx=10 mx....`
TXT	`v=spf1 include:spf.protection.outlook.com include:_spf.exactonline.nl include...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.81.202, 172.67.164.7
		IPv6 hints	2606:4700:3034::6815:51ca, 2606:4700:3035::ac43:a407
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=59, name=cloudflare-ech.com
SOA	`dilbert.ns.cloudflare.com`dns@cloudflare.com serial=2402154180

Previously MX for

extern-it.nl

chemelot-inscite.com

Same first word

fallback.mx

fallback.fr

fallback.at

fallback.org

fallback.biz

fallback.com

fallback.io

fallback.ru

fallback.de

fallback.ca

fallback.it

fallback.zone

fallback.us

fallback.be

fallback.nl

fallback.net

fallback.info

DNS History

11 records (4 active, 7 former)

●A104.21.81.2022026-03-09 → 2026-04-22 · 6 obs

○ 2017-02-07 21:55:02
● 2026-03-09 01:51:50
● 2026-03-10 19:08:20
○ 2026-03-17 04:48:10
● 2026-04-03 21:51:10
● 2026-04-22 12:32:12

●A172.67.164.72026-03-09 → 2026-04-22 · 6 obs

○ 2017-02-07 21:55:02
● 2026-03-09 01:51:50
● 2026-03-10 19:08:20
○ 2026-03-17 04:48:10
● 2026-04-03 21:51:10
● 2026-04-22 12:32:12

○A188.114.96.02026-03-17 → 2026-03-17 · 4 obs

○ 2026-03-10 19:08:20
● 2026-03-17 04:48:10
○ 2026-04-03 21:51:10
○ 2026-04-22 12:32:12

○A188.114.97.02026-03-17 → 2026-03-17 · 4 obs

○ 2026-03-10 19:08:20
● 2026-03-17 04:48:10
○ 2026-04-03 21:51:10
○ 2026-04-22 12:32:12

○A208.79.240.22017-02-07 → 2017-02-07 · 3 obs

● 2017-02-07 21:55:02
○ 2026-03-09 01:51:50
○ 2026-04-22 12:32:12

●A2606:4700:3034::6815:51ca2026-03-09 → 2026-04-22 · 6 obs

○ 2017-02-07 21:55:02
● 2026-03-09 01:51:50
● 2026-03-10 19:08:20
○ 2026-03-17 04:48:10
● 2026-04-03 21:51:10
● 2026-04-22 12:32:12

●A2606:4700:3035::ac43:a4072026-03-09 → 2026-04-22 · 6 obs

○ 2017-02-07 21:55:02
● 2026-03-09 01:51:50
● 2026-03-10 19:08:20
○ 2026-03-17 04:48:10
● 2026-04-03 21:51:10
● 2026-04-22 12:32:12

○A2607:fe70:0:3::a2017-02-07 → 2017-02-07 · 3 obs

● 2017-02-07 21:55:02
○ 2026-03-09 01:51:50
○ 2026-04-22 12:32:12

○A2a06:98c1:3120::2026-03-17 → 2026-03-17 · 4 obs

○ 2026-03-10 19:08:20
● 2026-03-17 04:48:10
○ 2026-04-03 21:51:10
○ 2026-04-22 12:32:12

○A2a06:98c1:3121::2026-03-17 → 2026-03-17 · 4 obs

○ 2026-03-10 19:08:20
● 2026-03-17 04:48:10
○ 2026-04-03 21:51:10
○ 2026-04-22 12:32:12

○CNAMEmail.rollernet.us2017-02-07 → 2017-02-07 · 3 obs

● 2017-02-07 21:55:02
○ 2026-03-09 01:51:50
○ 2026-04-22 12:32:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns1.dns.nl, ns3.dns.nl, ns4.dns.nl	-
extern-it.nl	violet.ns.cloudflare.com, dilbert.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.237

NS records: violet.ns.cloudflare.com, dilbert.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 352ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.164.7, 104.21.81.202`
AAAA	2	`2606:4700:3035::ac43:a407, 2606:4700:3034::6815:51ca`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

fallback.extern-it.nl points to four IP numbers: 2606:4700:3034::6815:51ca, 2606:4700:3035::ac43:a407, 104.21.81.202 and 172.67.164.7.

Other host names, for instance jcanepa.com, straffordcountyjail.org, fancywin.win, solexnet.com and restorepoint.net share IP numbers with fallback.extern-it.nl.

fallback.extern-it.nl - robtex.com