tesserogroup.dk

📜 Historical scan 2026-08-17 10:12:25  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tesserogroup.dk is a .dk domain served by 2 nameservers (ivan.ns.cloudflare.com, jo.ns.cloudflare.com). It was registered on 7 August 2026 (WHOIS) and first appeared in the .dk zone on 8 August 2026. Its website address 104.21.42.27 is hosted by Cloudflare, Inc. (AS13335). 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   176ms
NameserverIP addressesPTRASN / ISP
ivan.ns.cloudflare.com 108.162.193.120
172.64.33.120
173.245.59.120
2606:4700:58::adf5:3b78
2803:f800:50::6ca2:c178
2a06:98c1:50::ac40:2178		 ivan.ns.cloudflare.com
ivan.ns.cloudflare.com
ivan.ns.cloudflare.com
ivan.ns.cloudflare.com
ivan.ns.cloudflare.com
ivan.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
jo.ns.cloudflare.com 108.162.192.172
172.64.32.172
173.245.58.172
2606:4700:50::adf5:3aac
2803:f800:50::6ca2:c0ac
2a06:98c1:50::ac40:20ac		 jo.ns.cloudflare.com
jo.ns.cloudflare.com
jo.ns.cloudflare.com
jo.ns.cloudflare.com
jo.ns.cloudflare.com
jo.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   183ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.42.27 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.199.67 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

📧
No MX records found

🔷 AAAA Records (IPv6)#

2 records   223ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3032::6815:2a1b 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3033::ac43:c743 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   205ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.42.27,172.67.199.67 ech=AEX+DQBBZAAgACAz1CP6q4fcfyJ6b2ffYS3vQUd2WWFK61OalUpGO3xGMwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:2a1b,2606:4700:3033::ac43:c743

📝 TXT Records#

📝
No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

PolicyRecord (_dmarc.tesserogroup.dk)
p=quarantine v=DMARC1; p=quarantine; adkim=r; aspf=r; rua=mailto:dmarc_rua@onsecureserver.net;

📬 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 2026-10-21 19:58:07
www CNAMEcdn.webflow.com (all on webflow.com)
www vs bare domainSame network
tesserogroup.dk: 198.202.211.1 (AS209242)
www.tesserogroup.dk: 198.202.211.1 2620:cb:2000::1 (AS13335 AS209242)
WildcardNo

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.tesserogroup.dk 0cgieFNXvjUUmSeHLVXKGxrD6jjJ14WgIYKK1kcKFeI
TXT _acme-challenge.tesserogroup.dk ilECv1GYFdUxsj7wZRJ9G-ko8FvzePkOvHSISN8PyIw

🔗 TLSA / DANE#

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

🔐 DNSSEC#

318ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2412414678
Primary NS (MNAME)ivan.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-16 05:15:30
FieldValue
Registrar1API GmbH
Registered2026-08-07
Expires2027-08-06 (286d)

🔗 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#

NS
176ms
A
183ms
MX
205ms
AAAA
223ms
TXT
419ms
CAA
227ms
HTTPS
205ms
TLSA
154ms
SOA
0ms
MTA-STS
278ms
DNSSEC
318ms
SRV
242ms
Total
1423ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-21 19:58:07 1974ms 2 NS 1 A 2 MX 🔓 Insecure
2026-10-17 05:52:41 1462ms 2 NS 1 A 2 MX 🔓 Insecure
2026-10-16 05:00:51 898ms 2 NS 1 A 2 MX 🔓 Insecure
2026-10-13 19:28:39 1524ms 2 NS 1 A 2 MX 🔓 Insecure
2026-10-12 18:05:10 2692ms 2 NS 1 A 2 MX 🔓 Insecure
2026-09-11 08:22:43 1992ms 2 NS 1 A 2 MX 🔓 Insecure
2026-09-04 07:09:20 1436ms 2 NS 1 A 2 MX 🔓 Insecure
2026-08-26 21:22:36 976ms 2 NS 1 A 2 MX 🔓 Insecure
2026-08-20 15:42:53 7201ms 2 NS 1 A 2 MX 🔓 Insecure
2026-08-19 15:10:02 2099ms 2 NS 1 A 2 MX 🔓 Insecure
2026-08-18 15:03:49 1561ms 2 NS 2 A 0 MX 🔓 Insecure
2026-08-17 10:12:25 shown 1423ms 2 NS 2 A 0 MX 🔓 Insecure
2026-08-16 00:35:07 5167ms 2 NS 2 A 0 MX 🔓 Insecure
2026-08-14 14:46:43 2702ms 2 NS 2 A 0 MX 🔓 Insecure
2026-08-12 22:06:38 1872ms 1 NS 0 A 0 MX ❓ Unknown
2026-08-10 17:25:12 2018ms 1 NS 0 A 0 MX ❓ Unknown
2026-08-08 08:53:13 859ms 1 NS 0 A 0 MX ❓ Unknown
dhd.dk [/] search Domains, Hosts & DNS — .dk zone