builder.nl - dns.ninja
builder.nl
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-08-15 05:00:01 +0000 (EPOCH 1786770001) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-08-15 #10 | ||||||
Subdomains
smtp.builder.nl |
Same first word
Similar names
DNS History
10 records (7 active, 3 former)
●NSns0.leaseweb.com2026-02-14 → 2026-08-15 · 3 obs
● 2026-02-14 17:55:14
● 2026-08-15 05:41:02
○NSns0.leaseweb.nl2015-08-21 → 2018-09-29 · 4 obs
● 2018-09-29 03:46:42
○ 2026-02-14 17:55:14
○ 2026-08-15 05:41:02
●NSns1.leaseweb.nl2015-08-21 → 2026-08-15 · 2 obs
● 2026-08-15 05:41:02
●NSns4.leaseweb.net2015-08-21 → 2026-08-15 · 2 obs
● 2026-08-15 05:41:02
●NSns5.leaseweb.nl2015-08-21 → 2026-08-15 · 2 obs
● 2026-08-15 05:41:02
●MXmailfilter1.leaseweb.com2015-08-21 → 2026-08-15 · 2 obs
● 2026-08-15 05:41:02
●MXmailfilter2.leaseweb.com2015-08-21 → 2026-08-15 · 2 obs
● 2026-08-15 05:41:02
●MXmailfilter3.leaseweb.com2015-08-21 → 2026-08-15 · 2 obs
● 2026-08-15 05:41:02
○MXmailfilter4.leaseweb.com2015-08-21 → 2018-09-29 · 4 obs
● 2018-09-29 03:46:42
○ 2026-02-14 17:55:14
○ 2026-08-15 05:41:02
○A90.145.135.2082015-08-21 → 2026-02-15 · 4 obs
● 2026-02-15 00:24:58
○ 2026-02-22 05:00:28
○ 2026-08-15 05:41:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns3.dns.nl, ns4.dns.nl, ns1.dns.nl | - |
| builder.nl | ns1.leaseweb.nl, ns4.leaseweb.net, ns5.leaseweb.nl | 4 records |
✅ Authoritative Response
Server:23.19.196.53
NS records: ns1.leaseweb.nl, ns4.leaseweb.net, ns5.leaseweb.nl
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 561ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | ns4.leaseweb.net, ns5.leaseweb.nl... |
| MX | 3 | mailfilter2.leaseweb.com (pri: 100), mailfilter1.leaseweb.com (pri: 100)... |
| SOA | 1 | ns0.leaseweb.com postmaster.leaseweb.com |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.leaseweb.nl, ns1.leaseweb.nl, ns5.leaseweb.nl...)
Analysis
Hierarchy
The domain smtp.builder.nl falls under the parent builder.nl.
Name Servers
The domain builder.nl is delegated to these four name servers: ns0.leaseweb.com, ns4.leaseweb.net, ns1.leaseweb.nl and ns5.leaseweb.nl.
At least some of builder.nl's name servers are shared with other domains, for example 87.38.70.in-addr.arpa, 138.211.95.in-addr.arpa, directadmin.mobi and two more.
These name servers tend to be deployed in combination with the name servers ns0.leaseweb.nl and ns1.leaseweb.com.
Four hostnames, each with two IP addresses. ns0.leaseweb.com, ns4.leaseweb.net and ns1.leaseweb.nl all resolve to 23.19.196.53 and 2607:f5b5::53. ns5.leaseweb.nl has IP addresses 23.19.197.53 and 2607:f5b5:1::53.
ns0.leaseweb.com, ns4.leaseweb.net and ns1.leaseweb.nl all direct to 2607:f5b5::53.
ns0.leaseweb.com, ns4.leaseweb.net and ns1.leaseweb.nl all direct to 23.19.196.53.
Mail Servers
The MX records for builder.nl list three mail servers: mailfilter1.leaseweb.com, mailfilter2.leaseweb.com and mailfilter3.leaseweb.com.
builder.nl shares at least some of its mail servers with other domains — for example telekap.nl, on.eu, arjanm.com and two more.
It is common to find these mail servers paired with the mail servers mailfilter4.leaseweb.com.
The hostnames mailfilter1.leaseweb.com, mailfilter2.leaseweb.com and mailfilter3.leaseweb.com each direct to two IP addresses — mailfilter1.leaseweb.com to 85.17.150.25 and 2001:1af8:4100:2::70, mailfilter2.leaseweb.com to 85.17.96.86 and 2001:1af8:2100:1::30, and mailfilter3.leaseweb.com to 83.149.80.118 and 2001:1af8:3100:1::30.