grep.dk

📜 Historical scan 2026-08-13 02:39:39 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

grep.dk is a .dk domain served by 2 nameservers (doug.ns.cloudflare.com, lia.ns.cloudflare.com). It was registered on 15 January 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.49.73 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.zoho.com, mx2.zoho.com. 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 46ms

Nameserver	IP addresses	PTR	ASN / ISP
doug.ns.cloudflare.com	108.162.193.159 172.64.33.159 173.245.59.159 2606:4700:58::adf5:3b9f 2803:f800:50::6ca2:c19f 2a06:98c1:50::ac40:219f	doug.ns.cloudflare.com doug.ns.cloudflare.com doug.ns.cloudflare.com doug.ns.cloudflare.com doug.ns.cloudflare.com doug.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
lia.ns.cloudflare.com	108.162.192.185 172.64.32.185 173.245.58.185 2606:4700:50::adf5:3ab9 2803:f800:50::6ca2:c0b9 2a06:98c1:50::ac40:20b9	lia.ns.cloudflare.com lia.ns.cloudflare.com lia.ns.cloudflare.com lia.ns.cloudflare.com lia.ns.cloudflare.com lia.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 56ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.49.73	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.160.166	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 65ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	mx.zoho.com	204.141.43.44 204.141.43.44 204.141.43.44 204.141.43.44 204.141.43.44 204.141.43.44 204.141.43.44 204.141.43.44 204.141.43.44	mx6.zoho.com mx3.zohomail.com mx2.zohomail.com mx.zohomail.com mx.zoho.com mx3.zoho.com mx2.zoho.com mx8.zoho.com mx7.zoho.com	AS2639 ZOHO AS2639 ZOHO AS2639 ZOHO AS2639 ZOHO AS2639 ZOHO AS2639 ZOHO AS2639 ZOHO AS2639 ZOHO AS2639 ZOHO
20	600s	mx2.zoho.com	136.143.183.44 136.143.183.44 136.143.183.44 136.143.183.44 136.143.183.44 136.143.183.44	mx3.zohomail.com mx2.zohomail.com mx.zohomail.com mx.zoho.com mx3.zoho.com mx2.zoho.com	AS2639 ZOHO AS2639 ZOHO AS2639 ZOHO AS2639 ZOHO AS2639 ZOHO AS2639 ZOHO

🔷 AAAA Records (IPv6)#

2 records 52ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:3149	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:a0a6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 47ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.49.73,172.67.160.166 ech=AEX+DQBBNAAgACCyup0GYiVj1Iph45mjgzNuuKu0qMra6LGPbZVfMTXgJwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:3149,2606:4700:3035::ac43:a0a6

🔌 SRV Records#

1 records 83ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	10	2	5061	federation.messenger.msn.com

📝 TXT Records#

1 records 215ms

TXT Record
v=spf1 include:zohomail.com a include:myroot.dk include:zoho.com ~all

✉️ SPF#

Policy	Record (grep.dk)
~all (soft fail)	v=spf1 include:zohomail.com a include:myroot.dk include:zoho.com ~all

📨 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 2026-10-15 08:06:14

www	104.21.49.73 172.67.160.166 2606:4700:3031::6815:3149 2606:4700:3035::ac43:a0a6 (AS13335) (address records, no CNAME)
www vs bare domain	Same network grep.dk: 104.21.49.73 172.67.160.166 2606:4700:3031::6815:3149 2606:4700:3035::ac43:a0a6 (AS13335) www.grep.dk: 104.21.49.73 172.67.160.166 2606:4700:3031::6815:3149 2606:4700:3035::ac43:a0a6 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 9/10 · policy: ~all

error include:myroot.dk has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)
warn 9 of the 10 allowed DNS lookups used: one more include can break SPF

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.grep.dk	4HXgc2ZVBuRhtslO1hW1jJOJyE1vLKhsgr9P7FsvjzQ

🔗 TLSA / DANE#

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

🔐 DNSSEC#

88ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2411871898
Primary NS (MNAME)	doug.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-15 15:59:55

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-01-15
Expires	2027-01-31 (105d)

🔗 Same registrant#

3 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
nightscout.dk	Punktum dk A/S (direct)
reinhardt-consult.dk	Punktum dk A/S (direct)
reinhardtconsult.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

46ms

56ms

65ms

AAAA

52ms

TXT

215ms

CAA

39ms

HTTPS

47ms

TLSA

366ms

SOA

0ms

MTA-STS

67ms

DNSSEC

88ms

SRV

83ms

Total

1459ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 08:06:14	641ms	2 NS 2 A 2 MX	🔒 Secure
2026-10-09 01:04:01	3277ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-29 18:41:20	684ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-27 04:27:38	1291ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-23 10:31:23	1572ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-30 13:21:10	2120ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-29 12:16:51	1645ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-13 02:39:39 shown	1459ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-10 19:47:11	2509ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-08 06:26:31	1490ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-12 00:40:46	1210ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-26 15:34:14	951ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-21 03:54:07	1144ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-20 22:52:57	1134ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 06:13:21	1345ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-17 09:25:40	924ms	2 NS 2 A 2 MX	🔒 Secure