restudy.dk DNS records

🖥️ Nameservers4 records 49ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1-08.azure-dns.com	13.107.236.8 2603:1061:0:700::8	ns1-08.azure-dns.com ns1-08.azure-dns.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns2-08.azure-dns.net	150.171.21.8 2620:1ec:8ec:700::8	ns2-08.azure-dns.net ns2-08.azure-dns.net	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns3-08.azure-dns.org	204.14.183.8 2a01:111:4000:700::8	ns3-08.azure-dns.org ns3-08.azure-dns.org	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns4-08.azure-dns.info	208.84.5.8 2620:1ec:bda:700::8	ns4-08.azure-dns.info ns4-08.azure-dns.info	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records1 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
86.58.160.87	3600s	—	AS47292	Sentia Denmark A/S	86.58.160.0/21	🇩🇰 Denmark	—

📧 MX Records1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	restudy-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::4 2a01:111:f403:ca09::24 2a01:111:f403:ca09::e 52.101.68.39 52.101.73.2 52.101.73.24 52.101.73.8	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-as9pr07cu00302.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records5 records 190ms

TXT Record
_globalsign-domain-verification=8EQIRajZZJiyXwX88dCZBN-ffvdg9bteZB9Fu12rXz
1yj7fsb5kjk2ycm7108ps5dpg3q7cy9x
dCeNZ5869TKw3fC+E5M3CY0r7H6EbgFQpzsX0ULKEW8=
google-site-verification=Cu-hkFEGPnzsYaWE7g3kq3Xla6Zf_IIuUYRIR2Ft2bs
v=spf1 ip4:86.58.160.179 ip4:86.58.160.180 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (restudy.dk)
-all (hard fail)	v=spf1 ip4:86.58.160.179 ip4:86.58.160.180 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.restudy.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:62de94a87c3dc@dmarc.centerasecurity.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

🔗 TLSA / DANE

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

🔐 DNSSEC87ms

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

🏷️ SOA0ms

Field	Value
Serial	1
Primary NS (MNAME)	ns1-08.azure-dns.com
Responsible (RNAME)	azuredns-hostmaster@microsoft.com
Refresh	3600s
Retry	300s
Expire	2419200s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

49ms

A

40ms

MX

42ms

AAAA

37ms

TXT

190ms

CAA

45ms

HTTPS

59ms

TLSA

590ms

SOA

0ms

MTA-STS

61ms

DNSSEC

87ms

SRV

74ms

Total

1168ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 09:14:54	1168ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-30 23:00:38	1426ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 19:35:56	994ms	4 NS 1 A 1 MX	❓ Unknown	View
2026-06-17 12:14:13	939ms	4 NS 1 A 1 MX	🔒 Secure	View