nerd911.dk

📜 Historical scan 2026-10-08 08:08:00  ·  ← 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   97ms
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   144ms
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   124ms
PriorityTTLMail ServerIP addressesPTRASN
1 300s aspmx.l.google.com 142.251.127.27
2a00:1450:4001:c21::1a		 lcfrai-in-f27.1e100.net
lcfrai-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
5 300s alt1.aspmx.l.google.com 142.250.147.26
2a00:1450:4025:c01::1b		 rd-in-f26.1e100.net
rd-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
5 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
10 300s alt3.aspmx.l.google.com 192.179.20.26
2404:6800:4000:1027::1b		 ncboms-in-f26.1e100.net
ncboms-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
10 300s alt4.aspmx.l.google.com 192.178.158.26
2404:6800:4013:813::1b		 lcdels-in-f26.1e100.net
lcdels-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 52.98.154.152
🔶 Autoconfigdiscovery.nerd911.dk → 77.233.252.6

🔷 AAAA Records (IPv6)#

2 records   122ms
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   136ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.42.244,172.67.213.111 ech=AEX+DQBBVgAgACDGzeHda0pFVlXOa8RxU1peLnfQk0KiY+dzz2ytUPRoAwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:2af4,2606:4700:3037::ac43:d56f

🔌 SRV Records#

5 records   212ms
ServicePriorityWeightPortTarget
_xmpp-server._tcp 0 0 5269 xmpp-server2.l.google.com
_xmpp-server._tcp 0 0 5269 xmpp-server3.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

📝 TXT Records#

6 records   632ms
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#

262ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

94ms
FieldValue
Serial2416849762
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
97ms
A
144ms
MX
124ms
AAAA
122ms
TXT
632ms
CAA
121ms
HTTPS
136ms
TLSA
854ms
SOA
94ms
MTA-STS
177ms
DNSSEC
262ms
SRV
212ms
Total
4578ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-15 17:41:31 622ms 2 NS 2 A 5 MX 🔒 Secure
2026-10-08 08:08:00 shown 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 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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