firstgrade.dk

📜 Historical scan 2026-06-26 07:24:25 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

firstgrade.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 28 February 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 23.227.38.36 is hosted by Cloudflare, Inc. (AS13335) in Canada. Mail is handled by aspmx.l.google.com, smtp.google.com and 6 more. 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#

2 records 406ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 337ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
23.227.38.36	600s	myshopify.com	AS13335	Cloudflare, Inc.	23.227.38.0/23	🇨🇦 Canada	Ottawa

📧 MX Records#

8 records 321ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	43200s	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
1	600s	smtp.google.com	142.251.127.26 142.251.127.27 2a00:1450:4001:c21::1a 2a00:1450:4001:c21::1b	lcfrai-in-f26.1e100.net lcfrai-in-f27.1e100.net lcfrai-in-f26.1e100.net lcfrai-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	43200s	alt1.aspmx.l.google.com	172.253.152.27 2a00:1450:4010:c22::1b	yulpptr-in-f27.1e100.net yulpptr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	43200s	alt2.aspmx.l.google.com	192.178.211.26 2404:6800:4000:1025::1a	lcbomp-in-f26.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	43200s	alt3.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	43200s	alt4.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
11	600s	mx1.postal.yuu.dk	—	—	—
11	600s	mx2.postal.yuu.dk	—	—	—

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

7 records 595ms

TXT Record
atlassian-domain-verification=DYTmazkcp8i/1rCu4Ya/G2s3I3XbWxhFCUlcV2x7JQKTKawlVbCySLZ0OFIyWorG
facebook-domain-verification=gbq91kuz131euvi2y7a483c8799ylg
klaviyo-site-verification=U9uJFt
klaviyo-site-verification=WAJjNZ
shopify-verification-code=gDX9tGNZSOINQD8OXsISQjNTh4geK3
unione-validate-hash=7975ed2b4200068467c984a9de4bb83f
v=spf1 a mx include:spf.mailjet.com include:send.heysender.com include:spf.smartpack.dk include:mxsspf.sendpulse.com include:_spf.google.com include:spf.simply.com include:shops.shopify.com include:servers.mcsv.net include:spf.postal.yuu.dk include:spf.unione.io ~all

✉️ SPF#

Policy	Record (firstgrade.dk)
~all (soft fail)	v=spf1 a mx include:spf.mailjet.com include:send.heysender.com include:spf.smartpack.dk include:mxsspf.sendpulse.com include:_spf.google.com include:spf.simply.com include:shops.shopify.com include:servers.mcsv.net include:spf.postal.yuu.dk include:spf.unione.io ~all

📨 DMARC#

Policy	Record (_dmarc.firstgrade.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 2026-10-10 04:09:37

www CNAME	shops.myshopify.com (all on myshopify.com) → 23.227.38.74 2620:127:f00f:e:: (AS13335)
www vs bare domain	Same network firstgrade.dk: 23.227.38.36 (AS13335) www.firstgrade.dk: 23.227.38.74 2620:127:f00f:e:: (AS13335)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

3 found

Selector	CNAME	Key
google	—	RSA · ~2048 bit
s1	s1.domainkey.u25188765.wl016.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u25188765.wl016.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: 12/10 · policy: ~all

error include:spf.smartpack.dk has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)
error include:spf.postal.yuu.dk has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)
error 12 DNS lookups: the limit is 10, so a receiver whose evaluation gets past the 10th returns permerror (SPF fails)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

526ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

299ms

Field	Value
Serial	2026050501
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-10 04:52:03

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-02-28
Expires	2027-02-28 (132d)

📋 WHOIS#

⏱️ Lookup Timing#

406ms

337ms

321ms

AAAA

333ms

TXT

595ms

CAA

363ms

HTTPS

306ms

TLSA

334ms

SOA

299ms

MTA-STS

470ms

DNSSEC

526ms

SRV

446ms

Total

1879ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 04:09:37	745ms	2 NS 1 A 8 MX	🔒 Secure
2026-10-03 02:32:44	718ms	2 NS 1 A 8 MX	🔒 Secure
2026-09-24 22:13:53	763ms	2 NS 1 A 8 MX	🔒 Secure
2026-09-06 16:38:47	1317ms	2 NS 1 A 8 MX	🔒 Secure
2026-07-27 21:49:25	1544ms	2 NS 1 A 8 MX	🔒 Secure
2026-06-26 07:24:25 shown	1879ms	2 NS 1 A 8 MX	🔒 Secure
2026-06-17 09:37:07	1163ms	2 NS 1 A 8 MX	🔒 Secure