fellow.dk

📜 Historical scan 2026-09-08 05:42:42 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fellow.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 3 January 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 198.202.211.1 is hosted by Cloudflare London, LLC (AS209242) in United States. Mail is handled by fellow-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#

3 records 21ms

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 Records#

1 records 29ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
198.202.211.1	300s	—	AS209242	Cloudflare London, LLC	198.202.211.0/24	🇺🇸 United States	—

📧 MX Records#

1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	fellow-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::9 2a01:111:f403:ca04::c 2a01:111:f403:ca09::26 52.101.73.11 52.101.73.12 52.101.73.19 52.101.91.159	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-as8pr04cu00803.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

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8
🔶 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 Records#

1 records 37ms

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

📝 TXT Records#

2 records 85ms

TXT Record
1password-site-verification=IOHQRG2SHFGK5GKT6AFMKCYGJU
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (fellow.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.fellow.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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-17 00:32:53

www CNAME	mly92ha9.up.railway.app (all on railway.app) → 69.46.46.38 (AS400940)
www vs bare domain	Same network fellow.dk: 69.46.46.69 (AS400940) www.fellow.dk: 69.46.46.38 (AS400940)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u57698740.wl241.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u57698740.wl241.sendgrid.net	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 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	2026090600
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-17 00:56:15

Field	Value
Registrar	Simply.com A/S
Registered	2023-01-03
Expires	2027-01-02 (72d)

🔗 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#

21ms

29ms

31ms

AAAA

26ms

TXT

85ms

CAA

27ms

HTTPS

23ms

TLSA

624ms

SOA

0ms

MTA-STS

41ms

DNSSEC

101ms

SRV

37ms

Total

1148ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 00:32:53	1451ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-12 17:19:05	1630ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-11 16:28:21	993ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-06 01:15:37	1561ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-03 01:08:34	2099ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-01 00:51:59	1516ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-24 16:28:19	1961ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-23 15:39:55	1770ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-15 13:44:12	1589ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-09 07:08:11	1634ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-08 05:42:42 shown	1148ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-28 00:35:01	2597ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-26 17:41:46	1713ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-07 17:08:16	9840ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-06 04:33:03	2803ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-25 22:19:39	1426ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-23 15:09:51	1166ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 20:55:14	1610ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-17 09:45:34	1372ms	3 NS 1 A 1 MX	🔒 Secure