customoffice.dk

📜 Historical scan 2026-10-05 20:09:10  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

customoffice.dk is a .dk domain served by 2 nameservers (alan.ns.cloudflare.com, grace.ns.cloudflare.com). It was registered on 5 May 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.6.43 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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   180ms
NameserverIP addressesPTRASN / ISP
alan.ns.cloudflare.com 108.162.193.57
172.64.33.57
173.245.59.57
2606:4700:58::adf5:3b39
2803:f800:50::6ca2:c139
2a06:98c1:50::ac40:2139		 alan.ns.cloudflare.com
alan.ns.cloudflare.com
alan.ns.cloudflare.com
alan.ns.cloudflare.com
alan.ns.cloudflare.com
alan.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
grace.ns.cloudflare.com 108.162.192.159
172.64.32.159
173.245.58.159
2606:4700:50::adf5:3a9f
2803:f800:50::6ca2:c09f
2a06:98c1:50::ac40:209f		 grace.ns.cloudflare.com
grace.ns.cloudflare.com
grace.ns.cloudflare.com
grace.ns.cloudflare.com
grace.ns.cloudflare.com
grace.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   112ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.6.43 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.154.231 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

5 records   183ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s aspmx.l.google.com 2a00:1450:4001:c21::1a
74.125.206.27		 lcfrai-in-f26.1e100.net
wk-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
20 300s alt1.aspmx.l.google.com 142.250.147.26
2a00:1450:4013:c1e::1b		 rd-in-f26.1e100.net
yugrqzs-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
20 300s alt2.aspmx.l.google.com 172.253.152.26
2a00:1450:4010:c22::1b		 yulpptr-in-f26.1e100.net
yulpptr-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
30 300s aspmx2.googlemail.com 192.178.213.27
2a00:1450:4013:c1e::1b		 yugrqzs-in-f27.1e100.net
yugrqzs-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
30 300s aspmx3.googlemail.com 142.251.127.26
2a00:1450:4010:c22::1a		 lcfrai-in-f26.1e100.net
yulpptr-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records   164ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3032::ac43:9ae7 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3034::6815:62b 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   114ms
PriorityTargetSvcParams
1 service . alpn="h2" ipv4hint=104.21.6.43,172.67.154.231 ech=AEX+DQBBdAAgACCrlhIv03QoIIRMaEQ8GNpowq1LUde5Ju96mbxfgn7gPAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:9ae7,2606:4700:3034::6815:62b

📝 TXT Records#

4 records   597ms
TXT Record
anthropic-domain-verification-992zwc=5DwOIzes67TW8WqSXY5u37qen
apple-domain-verification=MR5VTBUsG99xnr18
google-site-verification=aXGpqjI8Vdr2ShtlY5hYlCEyx6iVBLY0DE4ZZEv4Hqg
v=spf1 include:sendgrid.net include:_spf.google.com include:spf.simply.com ip4:94.231.103.98 include:146721256.spf08.hubspotemail.net -all

✉️ SPF#

PolicyRecord (customoffice.dk)
-all (hard fail) v=spf1 include:sendgrid.net include:_spf.google.com include:spf.simply.com ip4:94.231.103.98 include:146721256.spf08.hubspotemail.net -all

📨 DMARC#

PolicyRecord (_dmarc.customoffice.dk)
p=quarantine v=DMARC1; p=quarantine; pct=25; sp=none; rua=mailto:e8a9f6ae365a48a8bf1513e57e0e465a@dmarc-reports.cloudflare.net,mailto:developer@customoffice.dk; adkim=r; aspf=r

📬 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 2026-10-13 08:08:36
www104.21.6.43 172.67.154.231 2606:4700:3032::ac43:9ae7 2606:4700:3034::6815:62b (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo

✍️ DKIM keys#

3 found
SelectorCNAMEKey
google — RSA · ~2048 bit
s1 s1.domainkey.u23374310.wl061.sendgrid.net RSA · ~2048 bit
s2 s2.domainkey.u23374310.wl061.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: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

517ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

923ms
FieldValue
Serial2416667725
Primary NS (MNAME)alan.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-05 20:16:20
FieldValue
RegistrarSimply.com A/S
Registered2011-05-05
Expires2027-05-31 (226d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
180ms
A
112ms
MX
183ms
AAAA
164ms
TXT
597ms
CAA
124ms
HTTPS
114ms
TLSA
924ms
SOA
923ms
MTA-STS
328ms
DNSSEC
517ms
SRV
226ms
Total
5230ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-13 08:08:36 6336ms 2 NS 2 A 5 MX 🔓 Insecure
2026-10-05 20:09:10 shown 5230ms 2 NS 2 A 5 MX 🔓 Insecure
2026-09-30 19:31:00 908ms 2 NS 2 A 5 MX 🔓 Insecure
2026-09-27 18:14:58 9618ms 2 NS 2 A 5 MX 🔓 Insecure
2026-09-23 13:47:01 1596ms 2 NS 2 A 5 MX 🔓 Insecure
2026-09-18 19:23:23 890ms 2 NS 2 A 5 MX 🔓 Insecure
2026-09-05 06:17:36 1288ms 2 NS 2 A 5 MX 🔓 Insecure
2026-09-03 19:43:24 1615ms 2 NS 2 A 5 MX 🔓 Insecure
2026-08-30 23:19:21 745ms 2 NS 2 A 5 MX 🔓 Insecure
2026-08-27 11:43:40 887ms 2 NS 2 A 5 MX 🔓 Insecure
2026-08-24 20:14:15 9034ms 2 NS 2 A 5 MX 🔓 Insecure
2026-08-21 17:42:54 9484ms 2 NS 2 A 5 MX 🔓 Insecure
2026-08-20 17:37:40 13630ms 2 NS 2 A 5 MX 🔓 Insecure
2026-08-19 14:52:29 2496ms 2 NS 2 A 5 MX 🔓 Insecure
2026-08-08 09:09:09 17511ms 2 NS 2 A 5 MX 🔓 Insecure
2026-08-07 01:26:57 1527ms 2 NS 2 A 5 MX 🔓 Insecure
2026-08-02 02:25:26 9407ms 2 NS 2 A 5 MX 🔓 Insecure
2026-07-31 02:44:52 1473ms 2 NS 2 A 5 MX 🔓 Insecure
2026-07-25 07:50:30 2054ms 2 NS 2 A 5 MX 🔓 Insecure
2026-07-24 07:43:33 3243ms 2 NS 2 A 5 MX 🔓 Insecure
2026-07-18 04:46:14 7170ms 2 NS 2 A 5 MX 🔓 Insecure
2026-07-11 13:12:57 9291ms 2 NS 2 A 5 MX 🔓 Insecure
2026-07-09 02:17:10 10160ms 2 NS 2 A 5 MX 🔓 Insecure
2026-07-07 01:08:32 3078ms 2 NS 2 A 5 MX 🔓 Insecure
2026-07-04 17:02:26 10790ms 2 NS 2 A 5 MX 🔓 Insecure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone