restudy.dk

📜 Historical scan 2026-09-28 06:42:54 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

restudy.dk is a .dk domain served by 4 nameservers (ns1-08.azure-dns.com, ns2-08.azure-dns.net, ns3-08.azure-dns.org and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 86.58.160.87 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by restudy-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#

4 records 91ms

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 Records#

1 records 69ms

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 Records#

1 records 73ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	restudy-dk.mail.protection.outlook.com	2a01:111:f403:ca04::b 2a01:111:f403:ca09::22 2a01:111:f403:ca21::c 2a01:111:f403:ca21::e 52.101.209.31 52.101.68.10 52.101.91.153 52.101.91.159	mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am7pr02cu00302.inbound.protection.outlook.com mail-matpr04cu00204.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-matpr04cu00101.inbound.protection.outlook.com mail-matpr04cu00207.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 Records#

5 records 215ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-10 05:40:53

www	Exists, no address
www vs bare domain	www does not resolve restudy.dk: 86.58.160.87 (AS47292) www.restudy.dk: no address (all like this)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

101ms

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

🏷️ SOA#

0ms

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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

91ms

69ms

73ms

AAAA

76ms

TXT

215ms

CAA

37ms

HTTPS

41ms

TLSA

367ms

SOA

0ms

MTA-STS

91ms

DNSSEC

101ms

SRV

84ms

Total

963ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 20:53:15	1267ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-28 06:42:54 shown	963ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-26 09:14:54	1168ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-30 23:00:38	1426ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-25 19:35:56	994ms	4 NS 1 A 1 MX	❓ Unknown
2026-06-17 12:14:13	939ms	4 NS 1 A 1 MX	🔒 Secure