checkalert.nl - robtex.com
checkalert.nl
| DNSSEC | ⚠️ Not signed | ||||||
| A | 160.153.247.190🇳🇱 GODADDY-SXB160.153.244.0/22 GoDaddy | ||||||
| PTR | 190.247.153.160.host.secureserver.net | ||||||
| NS | ns1.dnstools.nl ⭐ | ||||||
| A | 2a02:728:e:66::100🇳🇱 UNISERVER-AS2a02:728::/32 | ||||||
| PTR | ns1.dnstools.nl | ||||||
| A | 81.26.219.100🇳🇱 UNISERVER-AS81.26.208.0/20 | ||||||
| PTR | ns1.dnstools.nl | ||||||
| NS | ns2.dnstools.nl | ||||||
| A | 2a02:728:e:758::160🇳🇱 UNISERVER-AS2a02:728::/32 | ||||||
| PTR | ns2.dnstools.nl | ||||||
| A | 81.26.208.160🇳🇱 UNISERVER-AS81.26.208.0/20 | ||||||
| PTR | ns2.dnstools.nl | ||||||
| MX | mail.checkalert.nl ⭐ | ||||||
| SOA | ns1.dnstools.nlfeedback@drs.easyhosting.nl 2026-03-26 #1 | ||||||
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-03-28 21:00:01 +0000 (EPOCH 1774731601) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-03-28 #42 | ||||||
Same first word
checkalert.nl |
Similar names
DNS History
7 records (4 active, 3 former)
○NSns1.dhn.nl2015-08-04 → 2017-04-08 · 4 obs
● 2017-04-08 20:06:44
○ 2026-02-26 16:54:14
○ 2026-03-28 22:04:56
●NSns1.dnstools.nl2026-02-26 → 2026-03-28 · 3 obs
● 2026-02-26 16:54:14
● 2026-03-28 22:04:56
○NSns2.dhn.nl2015-08-04 → 2017-04-08 · 4 obs
● 2017-04-08 20:06:44
○ 2026-02-26 16:54:14
○ 2026-03-28 22:04:56
●NSns2.dnstools.nl2026-02-26 → 2026-03-28 · 3 obs
● 2026-02-26 16:54:14
● 2026-03-28 22:04:56
●MXmail.checkalert.nl2015-08-04 → 2026-03-28 · 2 obs
● 2026-03-28 22:04:56
●A160.153.247.1902026-02-26 → 2026-03-28 · 3 obs
● 2026-02-26 16:54:14
● 2026-03-28 22:04:56
○A81.26.209.732015-08-04 → 2017-04-08 · 4 obs
● 2017-04-08 20:06:44
○ 2026-02-26 16:54:14
○ 2026-03-28 22:04:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns1.dns.nl, ns3.dns.nl, ns4.dns.nl | - |
| checkalert.nl | ns1.dnstools.nl, ns2.dnstools.nl | 4 records |
✅ Authoritative Response
Server:81.26.219.100
NS records: ns1.dnstools.nl, ns2.dnstools.nl
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for checkalert.nl (unsigned zone)
⏱️ Timing
Total: 331ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 160.153.247.190 |
| NS | 2 | ns1.dnstools.nl, ns2.dnstools.nl |
| MX | 1 | mail.checkalert.nl (pri: 10) |
| SOA | 1 | ns1.dnstools.nl feedback.drs.easyhosting |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.dnstools.nl, ns1.dnstools.nl, ns2.dnstools.nl...)
Analysis
IP Addresses
checkalert.nl points to IP number 160.153.247.190.
For instance, other host names dhncc.nl, dhn.nl, djvitro.nl, qr7.nl and clesol.com share IP numbers with checkalert.nl.
Name Servers
checkalert.nl is delegated to two name servers: ns1.dnstools.nl and ns2.dnstools.nl.
checkalert.nl uses the same name server setup as other domains such as coko-easy-clean.nl, stelwagen.com, sosef-engineering.nl, gebr-koole.com and isogroen.be.
checkalert.nl shares name servers with other domains at least partially, for example yachtstart.nl, konsili.nl, autobedrijf-sanders.nl, readyjet.eu and pvx.be.
Host names with two IP numbers:
ns1.dnstools.nl points to 2a02:728:e:66::100 and 81.26.219.100; ns2.dnstools.nl points to 2a02:728:e:758::160 and 81.26.208.160.
Mail Servers
checkalert.nl is handled by a single mail server, mail.checkalert.nl.