tc4b.com - robtex.com
tc4b.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.83.250.122🇵🇹 AS100LIMITE185.83.248.0/22 100 Limite, Lda. | ||||||
| PTR | frontflash.pt | ||||||
| NS | cp08.online.pt ⭐ | ||||||
| A | 185.83.250.3🇵🇹 AS100LIMITE185.83.248.0/22 100 Limite, Lda. | ||||||
| PTR | cp08.online.pt | ||||||
| NS | ns2.online.pt | ||||||
| A | 195.200.252.251🇵🇹 AS100LIMITE195.200.252.0/23 100 Limite, Lda. | ||||||
| PTR | ns2.online.pt | ||||||
| NS | ns4.online.pt | ||||||
| A | 193.163.151.109🇵🇹 EDGOO193.163.151.0/24 NETWORKS | ||||||
| PTR | ns4.online.pt | ||||||
| MX | tc4b.com ⭐ | ||||||
| A | 185.83.250.122🇵🇹 AS100LIMITE185.83.248.0/22 100 Limite, Lda. | ||||||
| PTR | frontflash.pt | ||||||
| TXT | v=spf1 ip4:185.83.250.3 ip4:185.83.250.122 +a +mx +ip4:195.200.253.97 ~all | ||||||
| SOA | cp08.online.ptcpanel@online.pt 2026-02-18 #1 | ||||||
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=1774380302 | ||||||
MX for
tc4b.com |
Subdomains
mail.tc4b.com |
Same first word
Similar names
btc4.fun |
4cbt.net |
b4tc.com |
b4tc.org |
bct4.com |
bt4c.com |
btc4.net |
4btc.cc |
cbt4.net |
4btc.eu |
b4ct.com |
cbt4.com |
4cbt.com |
DNS History
10 records (5 active, 5 former)
●NScp08.online.pt2026-02-23 → 2026-03-24 · 3 obs
● 2026-02-23 13:10:18
● 2026-03-24 19:50:10
○NSns1.frontflash.pt2015-06-30 → 2020-01-10 · 4 obs
● 2020-01-10 23:03:50
○ 2026-02-23 13:10:18
○ 2026-03-24 19:50:10
○NSns2.frontflash.pt2015-06-30 → 2020-01-10 · 4 obs
● 2020-01-10 23:03:50
○ 2026-02-23 13:10:18
○ 2026-03-24 19:50:10
●NSns2.online.pt2026-02-23 → 2026-03-24 · 3 obs
● 2026-02-23 13:10:18
● 2026-03-24 19:50:10
●NSns4.online.pt2026-02-23 → 2026-03-24 · 3 obs
● 2026-02-23 13:10:18
● 2026-03-24 19:50:10
○MXmail.tc4b.com2015-06-30 → 2020-01-10 · 4 obs
● 2020-01-10 23:03:50
○ 2026-02-23 13:10:18
○ 2026-03-24 19:50:10
●MXtc4b.com2026-02-23 → 2026-03-24 · 3 obs
● 2026-02-23 13:10:18
● 2026-03-24 19:50:10
●A185.83.250.1222026-02-23 → 2026-03-24 · 3 obs
● 2026-02-23 13:10:18
● 2026-03-24 19:50:10
○A195.200.252.2032015-06-30 → 2016-05-02 · 4 obs
● 2016-05-02 18:12:08
○ 2017-01-09 22:37:54
○ 2026-03-24 19:50:10
○A195.200.252.2042017-01-09 → 2020-01-10 · 5 obs
● 2017-01-09 22:37:54
● 2020-01-10 23:03:50
○ 2026-02-23 13:10:18
○ 2026-03-24 19:50:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| tc4b.com | ns2.online.pt, ns4.online.pt, cp08.online.pt | - |
✅ Authoritative Response
Server:185.83.250.3
NS records: ns2.online.pt, ns4.online.pt, cp08.online.pt
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tc4b.com (unsigned zone)
⏱️ Timing
Total: 2377ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.83.250.122 |
| NS | 3 | ns2.online.pt, ns4.online.pt... |
| MX | 1 | tc4b.com (pri: 0) |
| TXT | 1 | v=spf1 ip4:185.83.250.3 ip4:185.83.250.1 |
| SOA | 1 | cp08.online.pt cpanel.online.pt |
Analysis
Hierarchy
mail.tc4b.com has tc4b.com as its parent.
Mail Server Role
The mail server for tc4b.com is tc4b.com.
IP Addresses
tc4b.com maps to IP address 185.83.250.122.
Other host names, for instance mail.polisol.pt, polisol.pt, polisolar.pt, frontflash.pt and mail.frontflash.pt share IP numbers with tc4b.com.
Name Servers
tc4b.com is delegated to name servers cp08.online.pt, ns2.online.pt and ns4.online.pt.
tc4b.com at least partially shares name servers with other domains such as solferias.net, media1881.eu, ricardofigueiredo.com, calcidrata.pt and hotelaeroporto.com.pt.
These name servers are often used together with cp09.online.pt, cp07.online.pt, cp11.online.pt, cp12.online.pt, cp10.online.pt, cp02.online.pt, ns1.easyhost.pt, ns2.easyhost.pt, ns3.easyhost.pt and ns4.easyhost.pt.
Host names with a single IP:
cp08.online.pt points to 185.83.250.3
ns2.online.pt points to 195.200.252.251
ns4.online.pt points to 193.163.151.109
Mail Servers
One mail server serves tc4b.com.
tc4b.com points to one IP number: 185.83.250.122.