groundwater.dk

📜 Historical scan 2026-10-23 21:07:39 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

groundwater.dk is a .dk domain served by 2 nameservers (fatima.ns.cloudflare.com, ryan.ns.cloudflare.com). It was registered on 22 December 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.52.16 is hosted by Cloudflare, Inc. (AS13335). The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 23ms

Nameserver	IP addresses	PTR	ASN / ISP
fatima.ns.cloudflare.com	108.162.194.188 162.159.38.188 172.64.34.188 2606:4700:50::a29f:26bc 2803:f800:50::6ca2:c2bc 2a06:98c1:50::ac40:22bc	fatima.ns.cloudflare.com fatima.ns.cloudflare.com fatima.ns.cloudflare.com fatima.ns.cloudflare.com fatima.ns.cloudflare.com fatima.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ryan.ns.cloudflare.com	108.162.195.229 162.159.44.229 172.64.35.229 2606:4700:58::a29f:2ce5 2803:f800:50::6ca2:c3e5 2a06:98c1:50::ac40:23e5	ryan.ns.cloudflare.com ryan.ns.cloudflare.com ryan.ns.cloudflare.com ryan.ns.cloudflare.com ryan.ns.cloudflare.com ryan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 22ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.52.16	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.193.239	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.52.16
🔶 Autoconfig	104.21.52.16

🔷 AAAA Records (IPv6)#

2 records 25ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:3410	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:c1ef	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 29ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.52.16,172.67.193.239 ech=AEX+DQBB+AAgACCXqy/0K1IWhcBtF0Op9PLaHF+/bPFKZfNl29cvd0shVgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:3410,2606:4700:3037::ac43:c1ef

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-25 02:00:54

www	104.21.52.16 172.67.193.239 2606:4700:3030::6815:3410 2606:4700:3037::ac43:c1ef (AS13335) (address records, no CNAME)
www vs bare domain	Same network groundwater.dk: 188.114.96.1 188.114.97.1 2606:4700:3030::6815:3410 2606:4700:3037::ac43:c1ef (AS13335) www.groundwater.dk: 104.21.52.16 172.67.193.239 2606:4700:3030::6815:3410 2606:4700:3037::ac43:c1ef (AS13335)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

90ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

31ms

Field	Value
Serial	2418074872
Primary NS (MNAME)	fatima.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-21 15:00:06

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-12-22
Expires	2026-12-31 (65d)

🔗 Same registrant#

97 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
a76.dk	Punktum dk A/S (direct)
a76sokkel.dk	Punktum dk A/S (direct)
aquaplexus.dk	Punktum dk A/S (direct)
artikel76.dk	Punktum dk A/S (direct)
campcenturyclimate.dk	Punktum dk A/S (direct)
d-mic.dk	Punktum dk A/S (direct)
danmarks-geologiske-undersoegelse.dk	Punktum dk A/S (direct)
danmarks-geologiske-undersögelse.dk	Punktum dk A/S (direct)
danmarks-geologiske-undersøgelse.dk	Punktum dk A/S (direct)
danmarks-og-groenlands-geologiske-undersoegelse.dk	Punktum dk A/S (direct)
danmarks-og-grönlands-geologiske-undersögelse.dk	Punktum dk A/S (direct)
danmarks-og-grønlands-geologiske-undersøgelse.dk	Punktum dk A/S (direct)
danmarksgeologiskeundersoegelse.dk	Punktum dk A/S (direct)
danmarksgeologiskeundersögelse.dk	Punktum dk A/S (direct)
danmarksgeologiskeundersøgelse.dk	Punktum dk A/S (direct)
danmarksoggroenlandsgeologiskeundersoegelse.dk	Punktum dk A/S (direct)
danmarksoggrönlandsgeologiskeundersögelse.dk	Punktum dk A/S (direct)
danmarksoggrønlandsgeologiskeundersøgelse.dk	Punktum dk A/S (direct)
defa76.dk	Punktum dk A/S (direct)
denationalegeologiskeundersøgelserfordanmarkoggrønland.dk	Punktum dk A/S (direct)
dennationalehydrologiskemodel.dk	Punktum dk A/S (direct)
dia76.dk	Punktum dk A/S (direct)
dmic.dk	Punktum dk A/S (direct)
emerald.dk	Punktum dk A/S (direct)
geocenter-danmark.dk	Punktum dk A/S (direct)
geocenter-koebenhavn.dk	Punktum dk A/S (direct)
geocenter-köbenhavn.dk	Punktum dk A/S (direct)
geocenter-københavn.dk	Punktum dk A/S (direct)
geocenterdanmark.dk	Punktum dk A/S (direct)
geocenterkoebenhavn.dk	Punktum dk A/S (direct)
geologi.dk	Punktum dk A/S (direct)
geological-survey.dk	Punktum dk A/S (direct)
geologicalsurvey.dk	Punktum dk A/S (direct)
geologicalsurveydenmark.dk	Punktum dk A/S (direct)
geologicalsurveygreenland.dk	Punktum dk A/S (direct)
geologicalsurveyofdenmarkandgreenland.dk	Punktum dk A/S (direct)
geologisk-undersoegelse.dk	Punktum dk A/S (direct)
geologisk-undersögelse.dk	Punktum dk A/S (direct)
geologisk-undersøgelse.dk	Punktum dk A/S (direct)
geologiske-undersögelse.dk	Punktum dk A/S (direct)
geologiske-undersøgelse.dk	Punktum dk A/S (direct)
geologiskeundersögelse.dk	Punktum dk A/S (direct)
geologiskeundersøgelse.dk	Punktum dk A/S (direct)
geologisknyt.dk	Punktum dk A/S (direct)
geologiskundersoegelse.dk	Punktum dk A/S (direct)
geologiskundersögelse.dk	Punktum dk A/S (direct)
geologiskundersøgelse.dk	Punktum dk A/S (direct)
geology.dk	Punktum dk A/S (direct)
geosites.dk	Punktum dk A/S (direct)
geoviden.dk	Punktum dk A/S (direct)
gerda.dk	Punktum dk A/S (direct)
geus.dk	Punktum dk A/S (direct)
geusbulletin.dk	Punktum dk A/S (direct)
geusjournals.dk	Punktum dk A/S (direct)
geusx.dk	Punktum dk A/S (direct)
ggu.dk	Punktum dk A/S (direct)
greenmin.dk	Punktum dk A/S (direct)
groenlands-geologiske-undersoegelse.dk	Punktum dk A/S (direct)
groenlandsgeologiskeundersoegelse.dk	Punktum dk A/S (direct)
groundwaterlevel.dk	Punktum dk A/S (direct)
groundwatermapping.dk	Punktum dk A/S (direct)
groundwatermaps.dk	Punktum dk A/S (direct)
grundvandskort.dk	Punktum dk A/S (direct)
grundvandsovervaagning.dk	Punktum dk A/S (direct)
grundvandsovervågning.dk	Punktum dk A/S (direct)
grundvandsstanden.dk	Punktum dk A/S (direct)
grönlands-geologiske-undersögelse.dk	Punktum dk A/S (direct)
grönlandsgeologiskeundersögelse.dk	Punktum dk A/S (direct)
grønlands-geologiske-undersøgelse.dk	Punktum dk A/S (direct)
grønlandsgeologiskeundersøgelse.dk	Punktum dk A/S (direct)
harmonirib.dk	Punktum dk A/S (direct)
hydrologiforum.dk	Punktum dk A/S (direct)
icemon.dk	Punktum dk A/S (direct)
isskolen.dk	Punktum dk A/S (direct)
jordfugtighed.dk	Punktum dk A/S (direct)
jordskaelv.dk	Punktum dk A/S (direct)
jordskälv.dk	Punktum dk A/S (direct)
jordskælv.dk	Punktum dk A/S (direct)
kaempesten.dk	Punktum dk A/S (direct)
kontinentalsokkel.dk	Punktum dk A/S (direct)
kupa.dk	Punktum dk A/S (direct)
kæmpesten.dk	Punktum dk A/S (direct)
mem-bio.dk	Punktum dk A/S (direct)
mem2bio.dk	Punktum dk A/S (direct)
miresowa.dk	Punktum dk A/S (direct)
mosikt.dk	Punktum dk A/S (direct)
neogen.dk	Punktum dk A/S (direct)
nitrat.dk	Punktum dk A/S (direct)
pesticidvarsling.dk	Punktum dk A/S (direct)
promice.dk	Punktum dk A/S (direct)
seis-sustain.dk	Simply.com A/S
seismologi.dk	Punktum dk A/S (direct)
seissustain.dk	Simply.com A/S
unclos-76.dk	Punktum dk A/S (direct)
unclos76.dk	Punktum dk A/S (direct)
vandmodel.dk	Punktum dk A/S (direct)
vap.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

23ms

22ms

33ms

AAAA

25ms

TXT

163ms

CAA

25ms

HTTPS

29ms

TLSA

50ms

SOA

31ms

MTA-STS

45ms

DNSSEC

90ms

SRV

70ms

Total

1571ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-25 02:00:54	403ms	2 NS 2 A 0 MX	🔒 Secure
2026-10-23 21:26:59	1972ms	2 NS 2 A 0 MX	🔒 Secure
2026-10-23 21:07:39 shown	1571ms	2 NS 2 A 0 MX	🔒 Secure
2026-10-22 02:04:27	1151ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-27 22:39:31	566ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-16 13:30:18	1458ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-09 12:06:23	1303ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-06 07:13:08	682ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-27 20:24:11	672ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-23 20:38:28	2280ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-21 13:54:58	837ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-10 16:35:29	907ms	2 NS 2 A 0 MX	🔒 Secure
2026-07-18 01:43:11	954ms	2 NS 2 A 0 MX	🔒 Secure
2026-07-15 09:08:48	880ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-26 06:00:07	1010ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-21 22:34:35	482ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-21 04:02:14	3039ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-21 01:07:22	910ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 09:22:52	781ms	2 NS 2 A 0 MX	🔒 Secure