100opgaver.dk DNS records

🖥️ Nameservers3 records 45ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 17ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
23.227.38.65	3600s	myshopify.com	AS13335	Cloudflare, Inc.	23.227.38.0/23	🇨🇦 Canada	Ottawa

📧 MX Records1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	600s	smtp.google.com	172.253.152.27 2a00:1450:4010:c01::1a 2a00:1450:4010:c01::1a 2a00:1450:4010:c0e::1a 2a00:1450:4010:c0e::1a 2a00:1450:4010:c0e::1b 2a00:1450:4010:c0e::1b 2a00:1450:4010:c22::1a 64.233.161.26 64.233.161.27 74.125.131.26 74.125.131.27	yulpptr-in-f27.1e100.net lh-in-x1a.1e100.net lh-in-f26.1e100.net lu-in-x1a.1e100.net lu-in-f26.1e100.net lu-in-x1b.1e100.net lu-in-f27.1e100.net yulpptr-in-f26.1e100.net lh-in-f26.1e100.net lh-in-f27.1e100.net lu-in-f26.1e100.net lu-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	185.20.205.47
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 49ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com

📝 TXT Records1 records 160ms

TXT Record
google-site-verification=2YKpKVd2EooLrkvH3KeXqKSU3rwCp_785DtK2Dw5ii4

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 DMARC

Policy	Record (_dmarc.100opgaver.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.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)

🔐 DNSSEC71ms

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

🏷️ SOA28ms

Field	Value
Serial	2025090101
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

45ms

A

17ms

MX

31ms

AAAA

26ms

TXT

160ms

CAA

31ms

HTTPS

27ms

TLSA

111ms

SOA

28ms

MTA-STS

40ms

DNSSEC

71ms

SRV

49ms

Total

1005ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-02 17:59:52	1005ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-27 17:46:23	1384ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-24 03:40:09	724ms	3 NS 1 A 1 MX	❓ Unknown	View
2026-06-22 14:59:18	1172ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 14:38:42	547ms	3 NS 1 A 1 MX	⚠️ Bogus	View
2026-06-19 08:50:57	7348ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 12:33:37	1345ms	3 NS 1 A 1 MX	🔓 Insecure	View