firstclass.com.tr - dns.ninja
firstclass.com.tr
com.tr
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns73.ns.tr ⭐ ⚠️ Not in parent delegation | ||||||
| NS | ns43.ns.tr ⚠️ Not in parent delegation | ||||||
| NS | ns44.ns.tr ⚠️ Not in parent delegation | ||||||
| NS | ns61.ns.tr ⚠️ Not in parent delegation | ||||||
| NS | ns71.ns.tr ⚠️ Not in parent delegation | ||||||
| NS | ns72.ns.tr ⚠️ Not in parent delegation | ||||||
| NS | ns74.ns.tr ⚠️ Not in parent delegation | ||||||
| NS | ns75.ns.tr ⚠️ Not in parent delegation | ||||||
| SOA | ns73.ns.trhostmaster@trabis.gov.tr serial=1784154680 | ||||||
Subdomains
mail.firstclass.com.tr |
Same first word
Similar names
DNS History
11 records (5 active, 6 former)
●NSns1.cdnetdns.net2026-02-24 → 2026-07-16 · 3 obs
● 2026-02-24 23:19:08
● 2026-07-16 01:18:44
○NSns1.hurriyetemlak.com2015-08-12 → 2016-12-29 · 4 obs
● 2016-12-29 18:04:48
○ 2026-02-24 23:19:08
○ 2026-07-16 01:18:44
●NSns2.cdnetdns.net2026-02-24 → 2026-07-16 · 3 obs
● 2026-02-24 23:19:08
● 2026-07-16 01:18:44
○NSns2.hurriyetemlak.com2015-08-12 → 2016-12-29 · 4 obs
● 2016-12-29 18:04:48
○ 2026-02-24 23:19:08
○ 2026-07-16 01:18:44
●MXmail.firstclass.com.tr2026-02-24 → 2026-07-16 · 3 obs
● 2026-02-24 23:19:08
● 2026-07-16 01:18:44
●MXmailbackup3.doruk.net.tr2026-02-24 → 2026-07-16 · 3 obs
● 2026-02-24 23:19:08
● 2026-07-16 01:18:44
○MXmailcleaner.hurriyetemlak.com2015-08-12 → 2016-12-29 · 4 obs
● 2016-12-29 18:04:48
○ 2026-02-24 23:19:08
○ 2026-07-16 01:18:44
○MXmailcleaner1.hurriyetemlak.com2015-08-12 → 2016-12-29 · 4 obs
● 2016-12-29 18:04:48
○ 2026-02-24 23:19:08
○ 2026-07-16 01:18:44
○MXmailcleaner2.hurriyetemlak.com2015-08-12 → 2016-12-29 · 4 obs
● 2016-12-29 18:04:48
○ 2026-02-24 23:19:08
○ 2026-07-16 01:18:44
●A76.76.21.212026-02-24 → 2026-07-16 · 3 obs
● 2026-02-24 23:19:08
● 2026-07-16 01:18:44
○A83.66.2.862015-08-12 → 2016-12-29 · 4 obs
● 2016-12-29 18:04:48
○ 2026-02-24 23:19:08
○ 2026-07-16 01:18:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tr | ns43.ns.tr, ns44.ns.tr, ns61.ns.tr, ns71.ns.tr... | - |
| firstclass.com.tr | ns1.cdnetdns.net, ns2.cdnetdns.net | - |
✅ Authoritative Response
Server:138.113.24.63
NS records: ns1.cdnetdns.net, ns2.cdnetdns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for firstclass.com.tr (unsigned zone)
⏱️ Timing
Total: 1632ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 76.76.21.21 |
| NS | 2 | ns1.cdnetdns.net, ns2.cdnetdns.net |
| MX | 2 | mail.firstclass.com.tr (pri: 10), mailbackup3.doruk.net.tr (pri: 20) |
| TXT | 1 | v=spf1 a mx ptr ip4:213.243.32.0/21 mx:p |
| SOA | 1 | ns1.cdnetdns.net dnsadmin.cdnetworks.com |
Analysis
Hierarchy
firstclass.com.tr is a parent domain of mail.firstclass.com.tr.
IP Addresses
firstclass.com.tr resolves to one IP address: 76.76.21.21.
helecloud.se, raiodental.com, runa.co.kr and two other host names share IP numbers with firstclass.com.tr.
Name Servers
Two name servers handle the delegation for firstclass.com.tr: ns1.cdnetdns.net and ns2.cdnetdns.net.
firstclass.com.tr uses the same name servers as several other domains — among them ohpgpokk7kel.com, ar4n93.vip, r8zk3qp.com and two more.
firstclass.com.tr is at least partially co-delegated on name servers with other domains, such as eksun.com.
Hostnames that resolve to 6 IP addresses:
ns1.cdnetdns.net resolves to 66.114.55.22, 138.113.24.63 and 140.150.36.142 among others, with 3 other IP addresses in total.
ns2.cdnetdns.net resolves to 138.113.24.63, 140.150.36.142 and 157.185.165.2 among others, with 3 other IP addresses in total.
ns1.cdnetdns.net along with ns2.cdnetdns.net each resolve to 138.113.24.63 IP addresses.
ns1.cdnetdns.net along with ns2.cdnetdns.net each resolve to 140.150.36.142 IP addresses.
ns1.cdnetdns.net along with ns2.cdnetdns.net each resolve to 157.185.165.2 IP addresses.
ns1.cdnetdns.net along with ns2.cdnetdns.net each resolve to 157.185.179.97 IP addresses.
Mail Servers
Mail for firstclass.com.tr is handled by two mail servers — mail.firstclass.com.tr and mailbackup3.doruk.net.tr.
firstclass.com.tr has at least partial mail server overlap with other domains such as ersel.tc, exen-tr.com, gurlek.com.tr and two more.
These mail servers are frequently paired with the mail servers mailhost01.doruk.net.tr, cmail16.webkontrol.doruk.net.tr and mailbackup.doruk.net.tr.
mail.firstclass.com.tr and mailbackup3.doruk.net.tr each resolve to one IP number: mail.firstclass.com.tr points to 212.58.6.99 and mailbackup3.doruk.net.tr points to 212.58.5.35.