slbooks.dk DNS records

🖥️ Nameservers2 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
lee.ns.cloudflare.com	108.162.193.129 172.64.33.129 173.245.59.129 2606:4700:58::adf5:3b81 2803:f800:50::6ca2:c181 2a06:98c1:50::ac40:2181	lee.ns.cloudflare.com lee.ns.cloudflare.com lee.ns.cloudflare.com lee.ns.cloudflare.com lee.ns.cloudflare.com lee.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
phoenix.ns.cloudflare.com	108.162.194.201 162.159.38.201 172.64.34.201 2606:4700:50::a29f:26c9 2803:f800:50::6ca2:c2c9 2a06:98c1:50::ac40:22c9	phoenix.ns.cloudflare.com phoenix.ns.cloudflare.com phoenix.ns.cloudflare.com phoenix.ns.cloudflare.com phoenix.ns.cloudflare.com phoenix.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 61ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.31.224	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.180.8	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	slbooks-dk.mail.protection.outlook.com	2a01:111:f403:ca04::d 2a01:111:f403:ca09::1 2a01:111:f403:ca09::24 2a01:111:f403:ca09::e 52.101.68.3 52.101.73.28 52.101.73.6 52.101.73.8	mail-db6pr03cu00105.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com mail-am6pr04cu00306.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)2 records 48ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:b408	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:1fe0	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 58ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.31.224,172.67.180.8 ech=AEX+DQBBKgAgACCagOE0lmOvNWN5uy3ezyGns3addflhunnKLGpZ9c/7MwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:b408,2606:4700:3036::6815:1fe0

📝 TXT Records2 records 193ms

TXT Record
MS=ms31642961
v=spf1 ip4:192.38.111.162/28 include:spf.messagelabs.com include:bounce.peytz.dk include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (slbooks.dk)
-all (hard fail)	v=spf1 ip4:192.38.111.162/28 include:spf.messagelabs.com include:bounce.peytz.dk include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.slbooks.dk)
p=none (monitor only)	v=DMARC1; p=none

📬 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)

🔐 DNSSEC98ms

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

🏷️ SOA0ms

Field	Value
Serial	2412954240
Primary NS (MNAME)	lee.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

50ms

A

61ms

MX

44ms

AAAA

48ms

TXT

193ms

CAA

45ms

HTTPS

58ms

TLSA

326ms

SOA

0ms

MTA-STS

63ms

DNSSEC

98ms

SRV

73ms

Total

957ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 00:21:09	957ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-27 00:36:00	1552ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-23 22:51:01	2434ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-18 23:10:39	1111ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-29 07:51:04	1631ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-26 17:30:58	970ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-22 17:05:41	1069ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-19 23:47:47	1069ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 23:26:26	2895ms	2 NS 2 A 1 MX	🔓 Insecure	View