crtholding.com - robtex.com
crtholding.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 88.255.107.73🇹🇷 TTNet88.255.64.0/18 | ||||||
| PTR | server.crtholding.com | ||||||
| NS | ns1.crtholding.com ⭐ | ||||||
| A | 88.255.107.74🇹🇷 TTNet88.255.64.0/18 | ||||||
| NS | ns2.crtholding.com | ||||||
| A | 88.255.107.75🇹🇷 TTNet88.255.64.0/18 | ||||||
| MX | crtholding.com ⭐ | ||||||
| A | 88.255.107.73🇹🇷 TTNet88.255.64.0/18 | ||||||
| PTR | server.crtholding.com | ||||||
| TXT | v=spf1 +a +mx +ip4:88.255.107.73 ~all | ||||||
| SOA | ns1.crtholding.comroot@server.crtholding.com 2026-03-16 #2 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1774500502 | ||||||
MX for
crtholding.com |
Subdomains
Same first word
crtholding.com |
DNS History
9 records (4 active, 5 former)
●NSns1.crtholding.com2026-02-23 → 2026-03-26 · 3 obs
● 2026-02-23 20:41:46
● 2026-03-26 04:52:44
○NSns1.mxserver.ro2016-12-18 → 2016-12-18 · 3 obs
○ 2026-02-23 20:41:46
○ 2026-03-26 04:52:44
●NSns2.crtholding.com2026-02-23 → 2026-03-26 · 3 obs
● 2026-02-23 20:41:46
● 2026-03-26 04:52:44
○NSns2.mxserver.ro2016-12-18 → 2016-12-18 · 3 obs
○ 2026-02-23 20:41:46
○ 2026-03-26 04:52:44
●MXcrtholding.com2026-02-23 → 2026-03-26 · 3 obs
● 2026-02-23 20:41:46
● 2026-03-26 04:52:44
○MXmx1.emailsrvr.com2016-12-18 → 2016-12-18 · 3 obs
○ 2026-02-23 20:41:46
○ 2026-03-26 04:52:44
○A212.175.17.1672026-02-23 → 2026-02-23 · 4 obs
● 2026-02-23 20:41:46
○ 2026-03-26 04:51:26
○ 2026-03-26 04:52:44
○A31.14.23.2542016-12-18 → 2016-12-18 · 3 obs
○ 2026-02-23 20:41:46
○ 2026-03-26 04:52:44
●A88.255.107.732026-03-26 → 2026-03-26 · 3 obs
● 2026-03-26 04:51:26
● 2026-03-26 04:52:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| crtholding.com | ns1.crtholding.com, ns2.crtholding.com | 2 records |
✅ Authoritative Response
Server:88.255.107.75
NS records: ns1.crtholding.com, ns2.crtholding.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for crtholding.com (unsigned zone)
⏱️ Timing
Total: 346ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 88.255.107.73 |
| NS | 2 | ns2.crtholding.com, ns1.crtholding.com |
| MX | 1 | crtholding.com (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:88.255.107.73 ~all |
| SOA | 1 | ns1.crtholding.com root.server.crtholdin |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns1.crtholding.com, ns2.crtholding.com)
Analysis
Hierarchy
crtholding.com is a parent of ns1.crtholding.com, ns2.crtholding.com and server.crtholding.com.
Mail Server Role
crtholding.com serves as the mail server for crtholding.com.
IP Addresses
crtholding.com points to a single IP address: 88.255.107.73.
Other host names such as zabunbilisim.com, server.crtholding.com and crtmetal.com share IP numbers with crtholding.com.
Name Servers
crtholding.com is delegated to two name servers: ns1.crtholding.com and ns2.crtholding.com.
crtholding.com uses the same name server setup as other domains, for example crtkimya.com.
crtholding.com shares name servers with other domains, at least partially; for example crtmetal.com and zabunbilisim.com.
These name servers are commonly used alongside ns1.zabunbilisim.com and ns2.zabunbilisim.com.
Hostnames with a single IP
ns1.crtholding.com resolves to: 88.255.107.74.
ns2.crtholding.com resolves to: 88.255.107.75.
Mail Servers
Mail for crtholding.com is handled by a single mail server, crtholding.com.
Host crtholding.com points to IP 88.255.107.73.