nerd911.dk

📜 Historical scan 2026-09-28 05:46:09  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nerd911.dk is a .dk domain served by 2 nameservers (erin.ns.cloudflare.com, nash.ns.cloudflare.com). It was registered on 11 January 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.42.244 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 DNSSEC-signed and validates, 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   32ms
NameserverIP addressesPTRASN / ISP
erin.ns.cloudflare.com 108.162.192.113
172.64.32.113
173.245.58.113
2606:4700:50::adf5:3a71
2803:f800:50::6ca2:c071
2a06:98c1:50::ac40:2071		 erin.ns.cloudflare.com
erin.ns.cloudflare.com
erin.ns.cloudflare.com
erin.ns.cloudflare.com
erin.ns.cloudflare.com
erin.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
nash.ns.cloudflare.com 108.162.193.209
172.64.33.209
173.245.59.209
2606:4700:58::adf5:3bd1
2803:f800:50::6ca2:c1d1
2a06:98c1:50::ac40:21d1		 nash.ns.cloudflare.com
nash.ns.cloudflare.com
nash.ns.cloudflare.com
nash.ns.cloudflare.com
nash.ns.cloudflare.com
nash.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
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.42.244 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.213.111 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

5 records   47ms
PriorityTTLMail ServerIP addressesPTRASN
1 300s aspmx.l.google.com 2a00:1450:4010:c09::1a
2a00:1450:4010:c09::1a
64.233.161.26		 lk-in-x1a.1e100.net
lk-in-f26.1e100.net
lh-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
5 300s alt1.aspmx.l.google.com 192.178.158.26
2404:6800:4013:813::1a		 lcdels-in-f26.1e100.net
lcdels-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
5 300s alt2.aspmx.l.google.com 173.194.41.27
173.194.41.27
2404:6800:4001:c01::1b		 mad01s14-in-f27.1e100.net
yukulwh-in-f27.1e100.net
yukulwh-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
10 300s alt3.aspmx.l.google.com 172.253.158.27
2404:6800:4003:c26::1a		 so-in-f27.1e100.net
so-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
10 300s alt4.aspmx.l.google.com 108.177.125.26
2404:6800:4008:c01::1a		 tp-in-f26.1e100.net
tp-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 52.98.154.136
🔶 Autoconfigdiscovery.nerd911.dk → 77.233.252.6

🔷 AAAA Records (IPv6)#

2 records   54ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3033::6815:2af4 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3037::ac43:d56f 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   39ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.42.244,172.67.213.111 ech=AEX+DQBBsQAgACBQ30TbiZW7IIvZ8ZL95VRd3spVoHNmLmga9zbmHuDCLgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:2af4,2606:4700:3037::ac43:d56f

🔌 SRV Records#

5 records   75ms
ServicePriorityWeightPortTarget
_xmpp-server._tcp 0 0 5269 xmpp-server2.l.google.com
_xmpp-server._tcp 0 0 5269 xmpp-server1.l.google.com
_xmpp-server._tcp 0 0 5269 xmpp-server.l.google.com
_xmpp-server._tcp 0 0 5269 xmpp-server4.l.google.com
_xmpp-server._tcp 0 0 5269 xmpp-server3.l.google.com

📝 TXT Records#

6 records   181ms
TXT Record
apple-domain-verification=1XvQ8I33AlIm2NVH
google-site-verification=LnmwogcweG7jbuapPUUBdSgelZNTkXGhBFKweqtL1s4
google-site-verification=MWkAghV3z1Y-aFw_pey3dKi1itbz_aK_a3Zmnq1j-Wg
MS=ms78162267
protonmail-verification=c703fe83e4b6054cd17eaf7b95a856da55ab6fd8
v=spf1 include:_spf.google.com include:spf.protection.outlook.com include:_spf.protonmail.ch include:_spf.smtp.com include:sendgrid.net ip4:185.140.164.57 ip4:77.233.252.0/27 -all

✉️ SPF#

PolicyRecord (nerd911.dk)
-all (hard fail) v=spf1 include:_spf.google.com include:spf.protection.outlook.com include:_spf.protonmail.ch include:_spf.smtp.com include:sendgrid.net ip4:185.140.164.57 ip4:77.233.252.0/27 -all

📨 DMARC#

PolicyRecord (_dmarc.nerd911.dk)
p=reject v=DMARC1; p=reject; pct=100; rua=mailto:7978e4f27aa340c19f587dd62deb61b7@dmarc-reports.cloudflare.net,mailto:dmarc_agg@vali.email; ruf=mailto:dmarc_agg@vali.email; sp=none; 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 2026-10-15 17:41:31
www104.21.42.244 172.67.213.111 2606:4700:3033::6815:2af4 2606:4700:3037::ac43:d56f (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceCompact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

3 found
SelectorCNAMEKey
google — RSA · ~2048 bit
s1 s1.domainkey.u16073062.wl063.sendgrid.net RSA · ~2048 bit
s2 s2.domainkey.u16073062.wl063.sendgrid.net RSA · ~1024 bit below 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: 7/10 · policy: -all

No problems found

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.nerd911.dk I2BVCO2o_zBoLVhFkVsmmGMSsL9Nkz5GDkaeWXED-oI

🔗 TLSA / DANE#

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

🔐 DNSSEC#

114ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2415989966
Primary NS (MNAME)erin.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-15 17:53:22
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2001-01-11
Expires2027-03-31 (164d)

🔗 Same registrant#

15 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).

DomainRegistrar
afoss.dkSimply.com A/S
aigym.dkKey-Systems GmbH
bay-consult.dkPunktum dk A/S (direct)
bhv2.dkPunktum dk A/S (direct)
brock-didriksen.dkPunktum dk A/S (direct)
bwbp.dkPunktum dk A/S (direct)
homaizi.dkPunktum dk A/S (direct)
meretezacho.dkPunktum dk A/S (direct)
nerdweb.dkPunktum dk A/S (direct)
nnoo.dkSimply.com A/S
pourquoi.dkPunktum dk A/S (direct)
radbs.dkPunktum dk A/S (direct)
rebeccaelbek.dkPunktum dk A/S (direct)
scantrenddesign.dkPunktum dk A/S (direct)
traveljustlinde.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
32ms
A
38ms
MX
47ms
AAAA
54ms
TXT
181ms
CAA
35ms
HTTPS
39ms
TLSA
296ms
SOA
0ms
MTA-STS
56ms
DNSSEC
114ms
SRV
75ms
Total
1725ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-15 17:41:31 622ms 2 NS 2 A 5 MX 🔒 Secure
2026-10-08 08:08:00 4578ms 2 NS 2 A 5 MX 🔒 Secure
2026-10-02 06:28:13 1236ms 2 NS 2 A 5 MX 🔒 Secure
2026-09-28 05:46:09 shown 1725ms 2 NS 2 A 5 MX 🔒 Secure
2026-09-24 03:59:23 1006ms 2 NS 2 A 5 MX 🔒 Secure
2026-09-16 13:42:44 1373ms 2 NS 2 A 5 MX 🔒 Secure
2026-09-10 09:22:00 1175ms 2 NS 2 A 5 MX 🔒 Secure
2026-09-08 09:18:38 1271ms 2 NS 2 A 5 MX 🔒 Secure
2026-09-06 13:24:30 2400ms 2 NS 2 A 5 MX 🔒 Secure
2026-08-23 06:22:59 10627ms 2 NS 2 A 5 MX 🔒 Secure
2026-08-21 05:58:20 1619ms 2 NS 2 A 5 MX 🔒 Secure
2026-08-19 02:31:12 6229ms 2 NS 2 A 5 MX 🔒 Secure
2026-08-17 20:04:12 1652ms 2 NS 2 A 5 MX 🔒 Secure
2026-08-16 01:10:23 1672ms 2 NS 2 A 5 MX 🔒 Secure
2026-08-13 20:19:28 6596ms 2 NS 2 A 5 MX 🔒 Secure
2026-07-27 11:48:17 2973ms 2 NS 2 A 5 MX 🔒 Secure
2026-07-24 09:39:09 1980ms 2 NS 2 A 5 MX 🔒 Secure
2026-07-16 09:24:54 1590ms 2 NS 2 A 5 MX 🔒 Secure
2026-07-03 20:32:58 12166ms 2 NS 1 A 5 MX 🔒 Secure
2026-07-02 20:01:24 1485ms 2 NS 1 A 5 MX 🔒 Secure
2026-06-26 23:23:48 1170ms 2 NS 1 A 5 MX 🔒 Secure
2026-06-20 21:30:05 1136ms 2 NS 1 A 5 MX 🔒 Secure
2026-06-18 04:18:27 47185ms 2 NS 1 A 5 MX 🔒 Secure
2026-06-18 04:01:50 3139ms 2 NS 1 A 5 MX 🔒 Secure
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