zerv.dk

📜 Historical scan 2026-07-01 11:07:08 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

zerv.dk is a .dk domain served by 2 nameservers (henry.ns.cloudflare.com, may.ns.cloudflare.com). It was registered on 14 October 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.26.14.153 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by zerv-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a 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 43ms

Nameserver	IP addresses	PTR	ASN / ISP
henry.ns.cloudflare.com	108.162.193.176 172.64.33.176 173.245.59.176 2606:4700:58::adf5:3bb0 2803:f800:50::6ca2:c1b0 2a06:98c1:50::ac40:21b0	henry.ns.cloudflare.com henry.ns.cloudflare.com henry.ns.cloudflare.com henry.ns.cloudflare.com henry.ns.cloudflare.com henry.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
may.ns.cloudflare.com	108.162.192.135 172.64.32.135 173.245.58.135 2606:4700:50::adf5:3a87 2803:f800:50::6ca2:c087 2a06:98c1:50::ac40:2087	may.ns.cloudflare.com may.ns.cloudflare.com may.ns.cloudflare.com may.ns.cloudflare.com may.ns.cloudflare.com may.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

3 records 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.26.14.153	300s	—	AS13335	Cloudflare, Inc.	104.26.0.0/20	—	—
104.26.15.153	300s	—	AS13335	Cloudflare, Inc.	104.26.0.0/20	—	—
172.67.75.247	300s	—	AS13335	Cloudflare, Inc.	172.67.64.0/18	—	—

📧 MX Records#

1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	zerv-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::5 2a01:111:f403:ca04::9 2a01:111:f403:ca04::b 52.101.68.0 52.101.68.16 52.101.68.21 52.101.73.153	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.40
🔶 Autoconfig	autoconfig-mf.dandomain.dk → 212.237.249.54

🔷 AAAA Records (IPv6)#

3 records 39ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:20::681a:e99	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2606:4700:20::681a:f99	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2606:4700:20::ac43:4bf7	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—

🔐 HTTPS Records#

1 records 49ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.26.14.153,104.26.15.153,172.67.75.247 ipv6hint=2606:4700:20::681a:e99,2606:4700:20::681a:f99,2606:4700:20::ac43:4bf7

📝 TXT Records#

4 records 176ms

TXT Record
google-site-verification=ACIM-oIxNKf42CnULuvzCMgAR8YDUoRTs0DcfQTLHvg
klaviyo-site-verification=QSAVBH
MS=ms70303979
v=spf1 include:spf.protection.outlook.com include:mailgun.org include:_spf.herodesk-mails.io ~all

✉️ SPF#

Policy	Record (zerv.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:mailgun.org include:_spf.herodesk-mails.io ~all

📨 DMARC#

Policy	Record (_dmarc.zerv.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 2026-10-20 06:10:26

www	104.26.14.153 104.26.15.153 172.67.75.247 2606:4700:20::681a:e99 2606:4700:20::681a:f99 2606:4700:20::ac43:4bf7 (AS13335) (address records, no CNAME)
www vs bare domain	Same network zerv.dk: 104.26.14.153 104.26.15.153 172.67.75.247 2606:4700:20::681a:e99 (AS13335) www.zerv.dk: 104.26.14.153 104.26.15.153 172.67.75.247 2606:4700:20::681a:e99 (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u24016106.wl107.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u24016106.wl107.sendgrid.net	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 7/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

150ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2407636942
Primary NS (MNAME)	henry.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-20 06:33:39

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-10-14
Expires	2027-10-31 (376d)

🔗 Same registrant#

8 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
badminton-outlet.dk	Punktum dk A/S (direct)
badmintonshop.dk	Punktum dk A/S (direct)
badmintonshoppen.dk	Punktum dk A/S (direct)
ketshop.dk	Punktum dk A/S (direct)
rackethouse.dk	DANDOMAIN A/S
tennisshoppen.dk	Punktum dk A/S (direct)
tennisxpert.dk	Punktum dk A/S (direct)
zerv-denmark.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

43ms

48ms

41ms

AAAA

39ms

TXT

176ms

CAA

39ms

HTTPS

49ms

TLSA

155ms

SOA

0ms

MTA-STS

51ms

DNSSEC

150ms

SRV

69ms

Total

977ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-20 06:10:26	3320ms	2 NS 3 A 1 MX	🔓 Insecure
2026-10-13 21:50:12	1413ms	2 NS 3 A 1 MX	🔓 Insecure
2026-10-08 15:54:33	4530ms	2 NS 3 A 1 MX	🔓 Insecure
2026-10-03 14:57:16	847ms	2 NS 3 A 1 MX	🔓 Insecure
2026-09-01 14:48:37	1101ms	2 NS 3 A 1 MX	🔓 Insecure
2026-08-28 02:23:39	1177ms	2 NS 3 A 1 MX	🔓 Insecure
2026-08-21 11:03:02	11568ms	2 NS 3 A 1 MX	🔓 Insecure
2026-08-06 22:33:14	2340ms	2 NS 3 A 1 MX	🔓 Insecure
2026-07-01 11:07:08 shown	977ms	2 NS 3 A 1 MX	🔓 Insecure
2026-06-17 14:42:54	1764ms	2 NS 3 A 1 MX	🔓 Insecure