firstgrade.dk - dns.ninja
firstgrade.dk
dk
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | b.nic.dk ⭐ | ||||||
| NS | c.nic.dk | ||||||
| NS | h.nic.dk | ||||||
| NS | l.nic.dk | ||||||
| NS | s.nic.dk | ||||||
| NS | t.nic.dk | ||||||
| TXT | DK zone updateEpoch 1782765001localtime Mon Jun 29 22:30:01 2026gmtime Mon Ju... | ||||||
| SOA | b.nic.dktech@punktum.dk serial=1782765001 | ||||||
Same first word
firstgrade.de |
firstgrade.co.uk |
firstgrade.dk |
firstgrade.sch.ng |
firstgrade.us |
firstgrade.net |
firstgrade.com.au |
firstgrade.org |
firstgrade.com.sg |
firstgrade.ru |
Similar names
driftgaser.pro |
fridgearts.com |
gradefirst.biz |
gradefirst.com |
gradefirst.net |
gradefirst.info |
gradefirst.org |
fridgestar.com |
DNS History
11 records (11 active, 0 former)
●MXalt1.aspmx.l.google.com2026-03-16 → 2026-06-29 · 2 obs
● 2026-06-29 20:48:26
●MXalt2.aspmx.l.google.com2026-03-16 → 2026-06-29 · 2 obs
● 2026-06-29 20:48:26
●MXalt3.aspmx.l.google.com2026-03-16 → 2026-06-29 · 2 obs
● 2026-06-29 20:48:26
●MXalt4.aspmx.l.google.com2026-03-16 → 2026-06-29 · 2 obs
● 2026-06-29 20:48:26
●MXaspmx.l.google.com2026-03-16 → 2026-06-29 · 2 obs
● 2026-06-29 20:48:26
●MXmx1.postal.yuu.dk2026-03-16 → 2026-06-29 · 2 obs
● 2026-06-29 20:48:26
●MXmx2.postal.yuu.dk2026-03-16 → 2026-06-29 · 2 obs
● 2026-06-29 20:48:26
●MXsmtp.google.com2026-03-16 → 2026-06-29 · 2 obs
● 2026-06-29 20:48:26
●A23.227.38.362026-03-16 → 2026-06-29 · 2 obs
● 2026-06-29 20:48:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dk | b.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk... | - |
| firstgrade.dk | ns02.one.com, ns01.one.com | - |
✅ Authoritative Response
Server:185.10.11.10
NS records: ns02.one.com, ns01.one.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1328ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 23.227.38.36 |
| NS | 2 | ns01.one.com, ns02.one.com |
| MX | 8 | smtp.google.com (pri: 1), aspmx.l.google.com (pri: 1)... |
| TXT | 7 | v=spf1 a mx include:spf.mailjet.com incl, facebook-domain-verification=gbq91kuz131... |
| SOA | 1 | ns01.one.com hostmaster.one.com |
Analysis
IP Addresses
firstgrade.dk has exactly one IP address — 23.227.38.36.
blackrabbitfabrics.com, finallapjax.com, ommizon.com plus two other host names have IP numbers in common with firstgrade.dk.
Name Servers
The NS records for firstgrade.dk delegate to ns01.one.com and ns02.one.com.
The name server configuration of firstgrade.dk is shared with other domains, for instance ferroteknik.dk, bmst.be, socialfoodies.dk and two others.
ns01.one.com resolves to 195.206.121.10 and 2001:67c:28cc::10. Likewise, ns02.one.com resolves to 185.10.11.10 and 2001:67c:3c0::10 — two IP addresses apiece.
Mail Servers
The MX records for firstgrade.dk point to 8 mail servers — smtp.google.com, aspmx.l.google.com, mx1.postal.yuu.dk and 5 other.
At least some of the mail servers used by firstgrade.dk are shared with other domains: rmscg.net, buildmor.com, womensrugbyagency.co.uk and two others among them.
These mail servers are often deployed together with alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 other mail servers.
Hosts with 9 IP addresses each:
smtp.google.com maps to 142.251.163.27, 142.251.167.26, 142.251.167.27 and 6 additional IP addresses.
Host names pointing to two IP addresses:
The A records for aspmx.l.google.com return 142.251.163.27 and 2607:f8b0:4004:c1d::1a.
The A records for alt1.aspmx.l.google.com return 108.177.123.27 and 2800:3f0:4003:c0f::1a.
The A records for alt2.aspmx.l.google.com return 172.253.116.26 and 2a00:1450:400b:c02::1a.
The A records for alt3.aspmx.l.google.com return 192.178.223.26 and 2a00:1450:4009:c0f::1a.
The A records for alt4.aspmx.l.google.com return 172.253.157.27 and 2a00:1450:400c:c23::1b.
smtp.google.com and aspmx.l.google.com each have 2607:f8b0:4004:c1d::1a IP addresses.
smtp.google.com and aspmx.l.google.com each have 142.251.163.27 IP addresses.