calendra.dk

📜 Historical scan 2026-10-17 21:34:07 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

calendra.dk is a .dk domain served by 2 nameservers (gwen.ns.cloudflare.com, johnathan.ns.cloudflare.com). It was registered on 14 August 2026 (WHOIS) and first appeared in the .dk zone on 15 August 2026. Its website address 104.21.93.198 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mailserver.purelymail.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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#

2 records 38ms

Nameserver	IP addresses	PTR	ASN / ISP
gwen.ns.cloudflare.com	108.162.192.160 172.64.32.160 173.245.58.160 2606:4700:50::adf5:3aa0 2803:f800:50::6ca2:c0a0 2a06:98c1:50::ac40:20a0	gwen.ns.cloudflare.com gwen.ns.cloudflare.com gwen.ns.cloudflare.com gwen.ns.cloudflare.com gwen.ns.cloudflare.com gwen.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
johnathan.ns.cloudflare.com	108.162.195.44 162.159.44.44 172.64.35.44 2606:4700:58::a29f:2c2c 2803:f800:50::6ca2:c32c 2a06:98c1:50::ac40:232c	johnathan.ns.cloudflare.com johnathan.ns.cloudflare.com johnathan.ns.cloudflare.com johnathan.ns.cloudflare.com johnathan.ns.cloudflare.com johnathan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.93.198	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.214.52	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	mailserver.purelymail.com	18.204.123.63	ec2-18-204-123-63.compute-1.amazonaws.com	AS14618 Amazon.com, Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	d573ik9u.up.railway.app → 69.46.46.16
🔶 Autoconfig	d573ik9u.up.railway.app → 69.46.46.16

🔷 AAAA Records (IPv6)#

2 records 36ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:5dc6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:d634	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 37ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.93.198,172.67.214.52 ech=AEX+DQBBOwAgACARFe9nK5vV9CjGgiItGDjteo3gyUT78fIxKEQjrGu9WAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:5dc6,2606:4700:3034::ac43:d634

📝 TXT Records#

2 records 254ms

TXT Record
purelymail_ownership_proof=e5397fdc4a06608a13ed49aed0a24a0ba43c85cd3e305163829ef8ebcfdded26be1784fb3e6cea21f62cc51cfea37efe958a355efbf8c92470f473df659cf31c
v=spf1 include:_spf.purelymail.com ~all

✉️ SPF#

Policy	Record (calendra.dk)
~all (soft fail)	v=spf1 include:_spf.purelymail.com ~all

📨 DMARC#

Policy	Record (_dmarc.calendra.dk)
p=reject	v=DMARC1; p=reject; ruf=mailto:dmarc@purelymail.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 2026-10-18 21:43:09

www CNAME	eoeuhla8.up.railway.app (all on railway.app) → 69.46.46.104 (AS400940)
www vs bare domain	Different networks calendra.dk: 104.21.93.198 172.67.214.52 2606:4700:3033::6815:5dc6 2606:4700:3034::ac43:d634 (AS13335) www.calendra.dk: 69.46.46.104 (AS400940) (all like this)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.calendra.dk	d573ik9u.authorize.railwaydns.net
TXT	d573ik9u.authorize.railwaydns.net	F1TprGsgCBe8kQwWK_RXlFzq_WgV-SmG6RgEv7WbBnc
TXT	d573ik9u.authorize.railwaydns.net	JBbiGgZ_1ypQed0NnLfm4vcoF1XIokAfseOlENTSkLs
TXT	d573ik9u.authorize.railwaydns.net	TP_PAwSzXJW9ri5m_LqppJOhU9JgOibKd6_X_sVlfuU

🔗 TLSA / DANE#

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

🔐 DNSSEC#

57ms

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

🏷️ SOA#

32ms

Field	Value
Serial	2417751211
Primary NS (MNAME)	gwen.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-15 23:41:51

Field	Value
Registrar	ONE.COM A/S
Registered	2026-08-14
Expires	2027-08-13 (298d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

38ms

AAAA

36ms

TXT

254ms

CAA

49ms

HTTPS

37ms

TLSA

87ms

SOA

32ms

MTA-STS

91ms

DNSSEC

57ms

SRV

103ms

Total

715ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-18 21:43:09	896ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-17 21:34:07 shown	715ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-14 16:44:26	1059ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-13 15:23:36	2887ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 13:14:50	883ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-29 23:22:40	995ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 10:40:39	995ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-15 08:39:53	6429ms	2 NS 2 A 1 MX	🔓 Insecure