xroot.dk

📜 Historical scan 2026-07-16 14:36:23 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

xroot.dk is a .dk domain served by 2 nameservers (alan.ns.cloudflare.com, donna.ns.cloudflare.com). It was registered on 5 May 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by aspmx1.migadu.com, aspmx2.migadu.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 53ms

Nameserver	IP addresses	PTR	ASN / ISP
alan.ns.cloudflare.com	108.162.193.57 172.64.33.57 173.245.59.57 2606:4700:58::adf5:3b39 2803:f800:50::6ca2:c139 2a06:98c1:50::ac40:2139	alan.ns.cloudflare.com alan.ns.cloudflare.com alan.ns.cloudflare.com alan.ns.cloudflare.com alan.ns.cloudflare.com alan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
donna.ns.cloudflare.com	108.162.192.151 172.64.32.151 173.245.58.151 2606:4700:50::adf5:3a97 2803:f800:50::6ca2:c097 2a06:98c1:50::ac40:2097	donna.ns.cloudflare.com donna.ns.cloudflare.com donna.ns.cloudflare.com donna.ns.cloudflare.com donna.ns.cloudflare.com donna.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

🌍

No A records found

📧 MX Records#

2 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	aspmx1.migadu.com	135.125.171.180 135.125.222.87 2001:41d0:303:648a::1 2001:41d0:700:19b4::1 2001:41d0:700:1a57::1 51.38.57.138	ns3160119.ip-135-125-171.eu ns3160230.ip-135-125-222.eu — — — mizu0.migadu.com	AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS
20	300s	aspmx2.migadu.com	135.125.171.180 135.125.222.87 2001:41d0:303:648a::1 2001:41d0:700:19b4::1 2001:41d0:700:1a57::1 51.38.57.138	ns3160119.ip-135-125-171.eu ns3160230.ip-135-125-222.eu — — — mizu0.migadu.com	AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.159.131
🔶 Autoconfig	104.21.41.35

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 115ms

Service	Priority	Weight	Port	Target
_imaps._tcp	0	1	993	imap.migadu.com

📝 TXT Records#

3 records 242ms

TXT Record
google-site-verification=fNs5y3CqZ-3m7LPRYXlwCTf41NvuLqtUs7wk817kd0c
hosted-email-verify=wmpk31kt
v=spf1 include:spf.migadu.com -all

✉️ SPF#

Policy	Record (xroot.dk)
-all (hard fail)	v=spf1 include:spf.migadu.com -all

📨 DMARC#

Policy	Record (_dmarc.xroot.dk)
p=reject	v=DMARC1; p=reject;

📬 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 2026-10-23 17:59:07

www	Exists, no address
www vs bare domain	Neither resolves xroot.dk: no address www.xroot.dk: no address
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: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

179ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

0ms

Field	Value
Serial	2409661409
Primary NS (MNAME)	alan.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-16 20:18:17

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2016-05-05
Expires	2031-05-31 (1678d)

📋 WHOIS#

⏱️ Lookup Timing#

53ms

50ms

51ms

AAAA

57ms

TXT

242ms

CAA

46ms

HTTPS

61ms

TLSA

1916ms

SOA

0ms

MTA-STS

95ms

DNSSEC

179ms

SRV

115ms

Total

3589ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-23 17:59:07	777ms	2 NS 0 A 2 MX	🔒 Secure
2026-10-21 01:33:52	1781ms	2 NS 0 A 2 MX	🔒 Secure
2026-10-16 19:53:17	1974ms	2 NS 0 A 2 MX	🔒 Secure
2026-10-08 07:51:17	493ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-30 17:43:46	860ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-26 18:24:44	1486ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-23 17:07:25	1235ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-23 15:44:23	4156ms	2 NS 0 A 2 MX	🔒 Secure
2026-09-07 09:25:15	2316ms	2 NS 0 A 2 MX	🔒 Secure
2026-08-17 13:27:32	1909ms	2 NS 0 A 2 MX	🔒 Secure
2026-08-16 08:51:36	5662ms	2 NS 0 A 2 MX	🔒 Secure
2026-08-10 03:38:19	2772ms	2 NS 0 A 2 MX	🔒 Secure
2026-07-26 08:44:17	25531ms	2 NS 0 A 2 MX	🔒 Secure
2026-07-19 05:43:12	18181ms	2 NS 0 A 2 MX	🔒 Secure
2026-07-16 14:36:23 shown	3589ms	2 NS 0 A 2 MX	🔒 Secure
2026-06-23 20:46:15	1046ms	2 NS 0 A 2 MX	🔒 Secure
2026-06-20 22:07:33	542ms	2 NS 0 A 2 MX	🔒 Secure
2026-06-19 05:55:30	1405ms	2 NS 0 A 2 MX	🔒 Secure
2026-06-18 03:21:11	1420ms	2 NS 0 A 2 MX	🔒 Secure