cocu.nl - robtex.com
cocu.nl
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:7c8:fff9:14f::20🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network | ||||||
| PTR | cocu.nl | ||||||
| A | 136.144.132.73🇳🇱 TRANSIP-AS136.144.128.0/17 TransIP BV Amsterdam, The Netherlands | ||||||
| NS | ns1.synet.nl ⭐ | ||||||
| A | 2a01:7c8:d001:3b2::1🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network | ||||||
| PTR | ns1.synet.nl | ||||||
| A | 136.144.206.217🇳🇱 TRANSIP-AS136.144.128.0/17 TransIP BV Amsterdam, The Netherlands | ||||||
| PTR | ns1.synet.nl | ||||||
| NS | ns2.synet.nl | ||||||
| A | 2a01:7c8:aaba:2f5::1:1🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network | ||||||
| PTR | ns2.synet.nl | ||||||
| A | 149.210.229.86🇳🇱 TRANSIP-AS149.210.128.0/17 TransIP BV Amsterdam, The Netherlands | ||||||
| PTR | ns2.synet.nl | ||||||
| MX | mail.cocu.nl ⭐ | ||||||
| A | 2a01:7c8:fff9:14f::20🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network | ||||||
| PTR | cocu.nl | ||||||
| A | 136.144.132.73🇳🇱 TRANSIP-AS136.144.128.0/17 TransIP BV Amsterdam, The Netherlands | ||||||
| PTR | wp.synet.nl | ||||||
| TXT | v=spf1 mx a ip4:136.144.132.73 ip6:2a01:7c8:fff9:14f:0:0:0:0/64 include:_spf.... | ||||||
| SOA | ns1.synet.nlhostmaster@cocu.nl 2025-05-21 #1 | ||||||
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-07-23 15:00:01 +0000 (EPOCH 1784818801) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-07-23 #30 | ||||||
PTR for
Subdomains
mail.cocu.nl |
Same first word
cocu.com |
cocu.nyc |
cocu.eu |
cocu.in |
cocu.xyz |
cocu.net |
cocu.la |
cocu.cz |
cocu.nu |
cocu.online |
cocu.ch |
cocu.fr |
cocu.nl |
cocu.es |
cocu.hatenablog.com |
cocu.ru |
cocu.co.za |
cocu.de |
cocu.io |
cocu.me |
cocu.com.ar |
cocu.info |
Similar names
DNS History
10 records (5 active, 5 former)
○NSns1.hostnet.nl2015-06-27 → 2017-01-02 · 4 obs
● 2017-01-02 16:46:16
○ 2026-04-05 15:15:24
○ 2026-07-23 15:37:54
●NSns1.synet.nl2026-04-05 → 2026-07-23 · 3 obs
● 2026-04-05 15:15:24
● 2026-07-23 15:37:54
○NSns2.hostnetbv.com2015-06-27 → 2017-01-02 · 4 obs
● 2017-01-02 16:46:16
○ 2026-04-05 15:15:24
○ 2026-07-23 15:37:54
●NSns2.synet.nl2026-04-05 → 2026-07-23 · 3 obs
● 2026-04-05 15:15:24
● 2026-07-23 15:37:54
○NSns3.hostnetbv.nl2015-06-27 → 2017-01-02 · 4 obs
● 2017-01-02 16:46:16
○ 2026-04-05 15:15:24
○ 2026-07-23 15:37:54
●MXmail.cocu.nl2026-04-05 → 2026-07-23 · 3 obs
● 2026-04-05 15:15:24
● 2026-07-23 15:37:54
○MXmail1.aerobe.net2015-06-27 → 2017-01-02 · 4 obs
● 2017-01-02 16:46:16
○ 2026-04-05 15:15:24
○ 2026-07-23 15:37:54
●A136.144.132.732026-04-05 → 2026-07-23 · 3 obs
● 2026-04-05 15:15:24
● 2026-07-23 15:37:54
●A2a01:7c8:fff9:14f::202026-04-05 → 2026-07-23 · 3 obs
● 2026-04-05 15:15:24
● 2026-07-23 15:37:54
○A84.244.186.1382015-06-27 → 2017-01-02 · 4 obs
● 2017-01-02 16:46:16
○ 2026-04-05 15:15:24
○ 2026-07-23 15:37:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns1.dns.nl, ns3.dns.nl, ns4.dns.nl | - |
| cocu.nl | ns1.synet.nl, ns2.synet.nl | 4 records |
✅ Authoritative Response
Server:136.144.206.217
NS records: ns1.synet.nl, ns2.synet.nl
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cocu.nl (unsigned zone)
⏱️ Timing
Total: 658ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 136.144.132.73 |
| AAAA | 1 | 2a01:7c8:fff9:14f::20 |
| NS | 2 | ns2.synet.nl, ns1.synet.nl |
| MX | 1 | mail.cocu.nl (pri: 10) |
| TXT | 1 | v=spf1 mx a ip4:136.144.132.73 ip6:2a01: |
| SOA | 1 | ns1.synet.nl hostmaster.cocu.nl |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.synet.nl, ns1.synet.nl, ns2.synet.nl...)
Analysis
Hierarchy
mail.cocu.nl is delegated beneath cocu.nl.
IP Addresses
cocu.nl has two IP addresses: 136.144.132.73 and 2a01:7c8:fff9:14f::20
Additional host names — vanriemsdijk.eu, wp.synet.nl, stelgijsel.nl and two others — share IP numbers with cocu.nl.
Name Servers
DNS delegation for cocu.nl points to two name servers: ns1.synet.nl and ns2.synet.nl.
cocu.nl shares its name server setup with other domains, including psia.nl, longtermbalivillas.com, danilakoster.nl and two others.
There is at least partial name server overlap between cocu.nl and other domains — longtermvillarentals.com, yachtcoatings.nl, youre-on2.synet.nl and two more among them.
ns1.synet.nl directs to 136.144.206.217 and 2a01:7c8:d001:3b2::1. ns2.synet.nl directs to 149.210.229.86 and 2a01:7c8:aaba:2f5::1:1. Each host name carries two IP addresses.
Mail Servers
cocu.nl has one mail server: mail.cocu.nl.
mail.cocu.nl carries two IP numbers: 136.144.132.73 and 2a01:7c8:fff9:14f::20.