big.dk

📜 Historical scan 2026-08-11 14:28:04 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

big.dk is a .dk domain served by 2 nameservers (arch.ns.cloudflare.com, dawn.ns.cloudflare.com). It was registered on 31 January 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.150.1.1 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by big-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 66ms

Nameserver	IP addresses	PTR	ASN / ISP
arch.ns.cloudflare.com	108.162.193.68 172.64.33.68 173.245.59.68 2606:4700:58::adf5:3b44 2803:f800:50::6ca2:c144 2a06:98c1:50::ac40:2144	arch.ns.cloudflare.com arch.ns.cloudflare.com arch.ns.cloudflare.com arch.ns.cloudflare.com arch.ns.cloudflare.com arch.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
dawn.ns.cloudflare.com	108.162.192.106 172.64.32.106 173.245.58.106 2606:4700:50::adf5:3a6a 2803:f800:50::6ca2:c06a 2a06:98c1:50::ac40:206a	dawn.ns.cloudflare.com dawn.ns.cloudflare.com dawn.ns.cloudflare.com dawn.ns.cloudflare.com dawn.ns.cloudflare.com dawn.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 54ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
216.150.1.1	300s	—	AS16509	Amazon.com, Inc.	216.150.1.0/24	🇺🇸 United States	—

📧 MX Records#

1 records 59ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	big-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca09::b 2a01:111:f403:ca09::d 2a01:111:f403:ca09::f 52.101.68.15 52.101.68.3 52.101.73.24 52.101.73.8	mail-du0pr03cu00102.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-as8pr05cu00300.inbound.protection.outlook.com mail-am0pr04cu00500.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 → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 84ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

18 records 2264ms

TXT Record
_bd803oc6q59l1wxfjppc3t27l3235c4
_globalsign-domain-verification=4HDE8epUsSL1Eua3IypuQW4DLptiB6hyxthEt4WdF6
375919af-4c2b-481f-bb46-a6d6c6c3dc8e
adobe-idp-site-verification=56817f62-c418-4c5d-9dad-afe36f7672e6
airalo-domain-verification=dHFNyzglLpPtYcX
apple-domain-verification=51HpwC26mTD79c9J
asv=bce8f38660b6e2a60fb7d9636f6c49a5
autodesk-domain-verification=DXtK31VwmKupx9Dy02yo
bw=tAv2nQbTYs39YrPJJNkRx1kWHosSUrAZ98rhG1c0Ay4X
google-site-verification=5ZamKvM9WV-5xkC21Ums6xM9wMzt5CnIZHvqwl1DEf8
google-site-verification=PX1x9s_2aj_WljPQza7RF1KogMPl3pFNbirP2PAnQcE
google-site-verification=rqnNiYSUf3ZnigR6cMNlHO_jEXehJazUNOYE6SdjET4
LT4DtvlU/tEpEFT99Q2HcJZYM8qWMU3sX53rEiCKaS/wD4bJP4GHWthTBU36ElL4KgNeo+exYZnLOYxoU3FzBA==
miro-verification=da2deb365952c7c1ae25617b93bd35dbcc84843a
MS=ms56749993
v=spf1 mx a include:spf.mandrillapp.com include:spf.protection.outlook.com include:_spf.concurcompleat.com include:_spf.essenslms.com include:_spf.emply.com -all
xn--MS=ms65969977
xn--MS=ms67034159

✉️ SPF#

Policy	Record (big.dk)
-all (hard fail)	v=spf1 mx a include:spf.mandrillapp.com include:spf.protection.outlook.com include:_spf.concurcompleat.com include:_spf.essenslms.com include:_spf.emply.com -all

📨 DMARC#

Policy	Record (_dmarc.big.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:umviz6cy@ag.eu.dmarcian.com; ruf=mailto:umviz6cy@fr.eu.dmarcian.com

📬 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 2026-10-14 19:03:43

www CNAME	cf32b3f056135485.vercel-dns-016.com (all on vercel-dns-016.com) → 216.150.1.65 216.150.16.65 (AS16509)
www vs bare domain	Same network big.dk: 216.150.1.1 (AS16509) www.big.dk: 216.150.1.65 216.150.16.65 (AS16509)
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

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-big-dk._domainkey.bigarchitects.onmicrosoft.com	RSA · ~1024 bit below 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: 8/10 · policy: -all

warn 8 of the 10 allowed DNS lookups used: one more include can break SPF

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.big.dk	2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com
TXT	2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com	32Q0VK5taXHbk5uOBQgF3YSZMLyQM_wuxWq33hrbXRQ
TXT	2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com	3Iq4ZyPFtSicmktpSK4lv7S1w3908S9rtdzAQ7KUc-s
TXT	2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com	GjiZIsvXpdUsTRNgFSjchHZjtUPXsN8v1kw4NXLoF2I
TXT	2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com	MTo90DWpb1jL7moUKnbtb4LagPW8insgxLM8cYI9aPA
TXT	2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com	NZbBQk0o9cziAul-7BS_JLhJljNR28g1185Q52ZDJnU
TXT	2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com	OFCx8a4GDj6Ej3-rxjt9QQ2eEufay2eiuuUmeu9p9-M
TXT	2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com	_Cywx_o-S7vjDe7DuJ4jJ6vK4fFFDvSw6u2M-VTBDZY
TXT	2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com	a8aQKClMN-G_rGcgggix-1-WENY3PLv9-AvJgQwhoIQ
TXT	2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com	deCAaIppqPP_SzKtRISDtEmX0oGaKgsZcqSi9jEi5lc
TXT	2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com	drrY_q5khyJacqPA-ecH9DGplof6iq8ukTBcYd5ZR5k
TXT	2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com	qMCytpOWl7C4aExZswk-W4GDlf1K-kUUGaxJkr_ppLQ
TXT	2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com	tBj9a4YOWtVQzXR_eVTl2xZgkW-dK7JzOCD_jXI3Wmk
TXT	2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com	wTp_UpWkGx4q_uH0NLAqktPvHZEv11-K1gSo2nH2IbU

🔗 TLSA / DANE#

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

🔐 DNSSEC#

93ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2411877528
Primary NS (MNAME)	arch.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-07 20:55:09

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-01-31
Expires	2027-03-31 (165d)

📋 WHOIS#

⏱️ Lookup Timing#

66ms

54ms

59ms

AAAA

55ms

TXT

2264ms

CAA

51ms

HTTPS

66ms

TLSA

607ms

SOA

0ms

MTA-STS

74ms

DNSSEC

93ms

SRV

84ms

Total

4066ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 19:03:43	2617ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-13 17:44:54	3347ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 20:17:58	2062ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 19:02:26	1382ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 05:41:36	717ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 18:09:05	1695ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-28 17:52:19	1752ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-20 20:28:11	2468ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-16 18:08:17	2345ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-12 15:53:41	1203ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-08 19:50:46	2025ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 18:18:51	764ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 16:57:01	1264ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-11 14:28:04 shown	4066ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-10 12:59:00	9335ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-09 12:53:26	5892ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-06 06:46:42	1534ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-22 21:32:19	10780ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-11 20:36:02	3673ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-03 19:58:16	8969ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 17:10:25	997ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 17:46:12	1928ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 14:02:16	1079ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 16:16:23	898ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 16:04:53	12861ms	2 NS 1 A 1 MX	🔒 Secure