mastertech.dk - dns.ninja

`mastertech.dk`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:464d^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:dda3^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.70.77^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.221.163^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`edna.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a6d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`edna.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c06d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`edna.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:206d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`edna.ns.cloudflare.com`
		A	108.162.192.109^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`edna.ns.cloudflare.com`
		A	172.64.32.109^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`edna.ns.cloudflare.com`
		A	173.245.58.109^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`edna.ns.cloudflare.com`
NS	`kai.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bbc^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kai.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1bc^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kai.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21bc^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kai.ns.cloudflare.com`
		A	108.162.193.188^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kai.ns.cloudflare.com`
		A	172.64.33.188^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kai.ns.cloudflare.com`
		A	173.245.59.188^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kai.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.70.77, 172.67.221.163
		IPv6 hints	2606:4700:3032::6815:464d, 2606:4700:3037::ac43:dda3
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=187, name=cloudflare-ech.com
SOA	`edna.ns.cloudflare.com`dns@cloudflare.com serial=2410534528

`dk`

	DNSSEC	🔒 Signed (DS record present)
	NS	`b.nic.dk` ⭐
	NS	`c.nic.dk`
	NS	`h.nic.dk`
	NS	`l.nic.dk`
	NS	`s.nic.dk`
	NS	`t.nic.dk`
	TXT	`DK zone updateEpoch 1785322261localtime Wed Jul 29 12:51:01 2026gmtime Wed Ju...`
	SOA	`b.nic.dk`tech@punktum.dk serial=1785322261

Same first word

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DNS History

19 records (6 active, 13 former)

●NSedna.ns.cloudflare.com2026-03-08 → 2026-07-29 · 3 obs

○ 2017-02-19 23:48:00
● 2026-03-08 09:40:52
● 2026-07-29 11:02:28

●NSkai.ns.cloudflare.com2026-03-08 → 2026-07-29 · 3 obs

○ 2017-02-19 23:48:00
● 2026-03-08 09:40:52
● 2026-07-29 11:02:28

○NSns1.gratisdns.dk2015-08-04 → 2017-02-19 · 4 obs

● 2015-08-04 02:22:30
● 2017-02-19 23:48:00
○ 2026-03-08 09:40:52
○ 2026-07-29 11:02:28

○NSns2.gratisdns.dk2015-08-04 → 2017-02-19 · 4 obs

● 2015-08-04 02:22:30
● 2017-02-19 23:48:00
○ 2026-03-08 09:40:52
○ 2026-07-29 11:02:28

○NSns3.gratisdns.dk2015-08-04 → 2017-02-19 · 4 obs

● 2015-08-04 02:22:30
● 2017-02-19 23:48:00
○ 2026-03-08 09:40:52
○ 2026-07-29 11:02:28

○NSns4.gratisdns.dk2015-08-04 → 2017-02-19 · 4 obs

● 2015-08-04 02:22:30
● 2017-02-19 23:48:00
○ 2026-03-08 09:40:52
○ 2026-07-29 11:02:28

○NSns5.gratisdns.dk2015-08-04 → 2017-02-19 · 4 obs

● 2015-08-04 02:22:30
● 2017-02-19 23:48:00
○ 2026-03-08 09:40:52
○ 2026-07-29 11:02:28

●A104.21.70.772026-03-16 → 2026-07-29 · 10 obs

○ 2026-03-08 09:40:52
● 2026-03-16 04:06:30
● 2026-03-29 15:46:14
○ 2026-04-12 14:25:24
○ 2026-04-17 13:19:38
● 2026-06-05 21:20:00
● 2026-06-15 09:31:08
○ 2026-06-21 03:24:54
● 2026-07-29 07:18:34
● 2026-07-29 11:02:28

●A172.67.221.1632026-03-16 → 2026-07-29 · 10 obs

○A188.114.96.02026-03-08 → 2026-06-21 · 11 obs

○ 2017-02-19 23:48:00
● 2026-03-08 09:40:52
○ 2026-03-16 04:06:30
○ 2026-03-29 15:46:14
● 2026-04-12 14:25:24
● 2026-04-17 13:19:38
○ 2026-06-05 21:20:00
○ 2026-06-15 09:31:08
● 2026-06-21 03:24:54
○ 2026-07-29 07:18:34
○ 2026-07-29 11:02:28

○A188.114.97.02026-03-08 → 2026-06-21 · 11 obs

○A2001:67c:3c0:12::532015-08-04 → 2017-02-19 · 4 obs

● 2015-08-04 02:22:30
● 2017-02-19 23:48:00
○ 2026-03-08 09:40:52
○ 2026-07-29 11:02:28

○A2606:4700:3031::6815:464d2026-03-16 → 2026-06-15 · 9 obs

●A2606:4700:3032::6815:464d2026-07-29 → 2026-07-29 · 3 obs

○ 2026-06-21 03:24:54
● 2026-07-29 07:18:34
● 2026-07-29 11:02:28

○A2606:4700:3033::ac43:dda32026-03-16 → 2026-06-15 · 9 obs

●A2606:4700:3037::ac43:dda32026-07-29 → 2026-07-29 · 3 obs

○ 2026-06-21 03:24:54
● 2026-07-29 07:18:34
● 2026-07-29 11:02:28

○A2a06:98c1:3120::2026-03-08 → 2026-06-21 · 11 obs

○A2a06:98c1:3121::2026-03-08 → 2026-06-21 · 11 obs

○A91.221.196.2532015-08-04 → 2017-02-19 · 4 obs

● 2015-08-04 02:22:30
● 2017-02-19 23:48:00
○ 2026-03-08 09:40:52
○ 2026-07-29 11:02:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	b.nic.dk, s.nic.dk, h.nic.dk, l.nic.dk...	-
mastertech.dk	kai.ns.cloudflare.com, edna.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.188

NS records: kai.ns.cloudflare.com, edna.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mastertech.dk (unsigned zone)

⏱️ Timing

Total: 648ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.70.77, 172.67.221.163`
AAAA	2	`2606:4700:3037::ac43:dda3, 2606:4700:3032::6815:464d`
NS	2	`edna.ns.cloudflare.com, kai.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`edna.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

mastertech.dk directs to four IP numbers, which are 104.21.70.77, 172.67.221.163, 2606:4700:3032::6815:464d and 2606:4700:3037::ac43:dda3.

pa-siak.go.id, 056qq.com, www.midterm.us plus two other host names have IP numbers in common with mastertech.dk.

Name Servers

mastertech.dk is delegated to two name servers: edna.ns.cloudflare.com and kai.ns.cloudflare.com.

The name server configuration of mastertech.dk is shared with other domains, for instance cakesta.com, camelbackairconditioning.com, chrysanthemumgarden.com and two others.

There is at least partial name server overlap between mastertech.dk and other domains — master-ac.com, kdtcare.com, alexistoto21d.site and two more among them.

These name servers are routinely deployed together with the name servers joan.ns.cloudflare.com.

Hosts with 6 IP addresses each:

edna.ns.cloudflare.com resolves to 108.162.192.109, 172.64.32.109, 173.245.58.109 and 3 other IP addresses.

kai.ns.cloudflare.com resolves to 108.162.193.188, 172.64.33.188, 173.245.59.188 and 3 other IP addresses.