csfworlds.com - robtex.com
csfworlds.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 51.79.229.154🇸🇬 OVH51.79.128.0/17 Hosting route | ||||||
| PTR | earth-8.bikiran.net | ||||||
| NS | ns81.bikiran.net ⭐ ⚠️ Not in parent delegation | ||||||
| A | 51.79.229.154🇸🇬 OVH51.79.128.0/17 Hosting route | ||||||
| PTR | earth-8.bikiran.net | ||||||
| NS | ns21.bikiran.net ⚠️ Not in zone NS records | ||||||
| A | 51.79.229.154🇸🇬 OVH51.79.128.0/17 Hosting route | ||||||
| PTR | earth-8.bikiran.net | ||||||
| NS | ns22.bikiran.net ⚠️ Not in zone NS records | ||||||
| A | 51.79.155.229🇸🇬 OVH51.79.128.0/17 Hosting route | ||||||
| PTR | mars-8.bikiran.net | ||||||
| NS | ns82.bikiran.net ⚠️ Not in parent delegation | ||||||
| A | 51.79.155.229🇸🇬 OVH51.79.128.0/17 Hosting route | ||||||
| PTR | mars-8.bikiran.net | ||||||
| MX | csfworlds.com ⭐ | ||||||
| A | 51.79.229.154🇸🇬 OVH51.79.128.0/17 Hosting route | ||||||
| PTR | earth-8.bikiran.net | ||||||
| TXT | v=spf1 +a +mx +ip4:51.79.229.154 ~all | ||||||
| SOA | ns81.bikiran.netbikiran\@server.gmail.com 2026-03-05 #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=1774413007 | ||||||
MX for
csfworlds.com |
Same first word
csfworlds.com |
DNS History
6 records (6 active, 0 former)
●NSns21.bikiran.net2026-02-22 → 2026-03-25 · 2 obs
● 2026-03-25 04:31:32
●NSns22.bikiran.net2026-02-22 → 2026-03-25 · 2 obs
● 2026-03-25 04:31:32
●NSns81.bikiran.net2026-02-22 → 2026-03-25 · 2 obs
● 2026-03-25 04:31:32
●NSns82.bikiran.net2026-02-22 → 2026-03-25 · 2 obs
● 2026-03-25 04:31:32
●MXcsfworlds.com2026-02-22 → 2026-03-25 · 2 obs
● 2026-03-25 04:31:32
●A51.79.229.1542026-02-22 → 2026-03-25 · 2 obs
● 2026-03-25 04:31:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, g.gtld-servers.net, i.gtld-servers.net, k.gtld-servers.net... | - |
| csfworlds.com | ns21.bikiran.net, ns22.bikiran.net | - |
✅ Authoritative Response
Server:51.79.229.154
NS records: ns21.bikiran.net, ns22.bikiran.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for csfworlds.com (unsigned zone)
⏱️ Timing
Total: 723ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 51.79.229.154 |
| NS | 2 | ns82.bikiran.net, ns81.bikiran.net |
| MX | 1 | csfworlds.com (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:51.79.229.154 ~all |
| SOA | 1 | ns81.bikiran.net bikiran\.server.gmail.c |
Analysis
Mail Server Role
csfworlds.com serves as the mail server for csfworlds.com.
IP Addresses
csfworlds.com points to an IP address: 51.79.229.154.
other host names include tools.bikiran.com, carnivalbd.net, atsdhaka.com, ns31.bikiran.net and mail.noman.me; they share IP numbers with csfworlds.com.
Name Servers
csfworlds.com delegates to four name servers: ns21.bikiran.net, ns22.bikiran.net, ns81.bikiran.net and ns82.bikiran.net.
csfworlds.com at least partially shares name servers with other domains, for instance ecdl.com.bd, habibsworld.com, enroute.com.bd, nutritionmap.org and bddoctor.com.
These name servers are commonly used with the following: ns1.sudokkho.com, ns2.sudokkho.com, ns11.imtiajrasel.com and ns12.imtiajrasel.com.
Host names with one IP:
ns21.bikiran.net points to 51.79.229.154.
ns22.bikiran.net points to 51.79.155.229.
ns81.bikiran.net points to 51.79.229.154.
ns82.bikiran.net points to 51.79.155.229.
Host names pointing to 51.79.229.154: ns21.bikiran.net and ns81.bikiran.net.
Host names pointing to 51.79.155.229: ns22.bikiran.net and ns82.bikiran.net.
Mail Servers
csfworlds.com is handled by a single mail server.
The host name csfworlds.com points to IP 51.79.229.154.