ustc.dk DNS records

🖥️ Nameservers2 records 69ms

Nameserver	IP addresses	PTR	ASN / ISP
dns1.cscdns.net	156.154.130.100 2610:a1:1022::100	ns2.euro909.com ns2.euro909.com	AS12008 Vercara, LLC AS12008 Vercara, LLC
dns2.cscdns.net	156.154.131.100 2610:a1:1023::100	ns4.ascio.net ns2.netnames.net	AS12008 Vercara, LLC AS12008 Vercara, LLC

🌍 A Records2 records 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.140.98	3600s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	—	—
172.66.0.96	3600s	—	AS13335	Cloudflare, Inc.	172.66.0.0/22	—	—

📧 MX Records1 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	ustc-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca09:: 2a01:111:f403:ca09::20 2a01:111:f403:ca09::9 52.101.68.32 52.101.68.39 52.101.73.28 52.101.73.8	mail-db4pr02cu00307.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am7pr05cu00204.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 → 40.104.116.40

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 104ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	0	5061	sipfed.online.lync.com

📝 TXT Records14 records 277ms

TXT Record
8Rj6zA+kbi6YJaOqJEVkes2OTo3esXtZsfIov/ZKgDo=
adobe-idp-site-verification=edd12c984ce6b53ae147023c8ecfdf80c599378201871316ad7959887ad75d59
apple-domain-verification=DOQAstql1LV99kTV
CEOV1607253747_ 12swBF
globalsign-domain-verification=cvE1o8ImayTB7LRnSnsdKPT8eRHN5_VOne97C0U_tB
google-site-verification=PnzGTsvWyrWZxZSeSc4a4sPrAdHLwknbaDsaNPXZxXc
IPwfnaOevpMA0FP8kqafl+n2492e9KPjAbA0rxL3mro=
jdbozzrqDWMa/X3I8MwqYkfdvzAYSYdhsx9iDTmIO5E=
knowbe4-site-verification=19ecbcfcb9e46a23beec6adde2f8d3b6
MS=ms26011496
MS=ms26935357
qohYonaJ9urGj7o8AIhAGZeZJXYbz0D1HkothJ9KsCQ=
QTPcAa86rwgMYxvsiJxaMMZBHcg5bMqYHzvk2lyQlKC75f/iBUhVviz8imtBxFXlcRWN2Nt6HIO7h3qbxBF4jg==
v=spf1 include:spf.protection.outlook.com ip4:87.54.30.26 mx:ofithost.dk a:ustc.dk include:spf.unit-it.dk include:sendgrid.net include:mailgun.org ~all

✉️ SPF

Policy	Record (ustc.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com ip4:87.54.30.26 mx:ofithost.dk a:ustc.dk include:spf.unit-it.dk include:sendgrid.net include:mailgun.org ~all

📨 DMARC

Policy	Record (_dmarc.ustc.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@14kt1cdr.uriports.com; ruf=mailto:dmarc@14kt1cdr.uriports.com; fo=1

📬 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)

🔐 DNSSEC96ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA61ms

Field	Value
Serial	2018082044
Primary NS (MNAME)	dns1.cscdns.net
Responsible (RNAME)	hostmaster@cscdns.net
Refresh	10800s
Retry	1800s
Expire	3600000s
Minimum (neg-cache TTL)	21600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

69ms

A

44ms

MX

53ms

AAAA

45ms

TXT

277ms

CAA

47ms

HTTPS

45ms

TLSA

129ms

SOA

61ms

MTA-STS

56ms

DNSSEC

96ms

SRV

104ms

Total

825ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-27 18:27:45	825ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-21 01:30:33	2552ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-20 20:05:42	1555ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-20 02:12:11	4836ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 11:45:06	1011ms	2 NS 2 A 1 MX	🔓 Insecure	View