classbd.com - dns.ninja
classbd.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.92.24.147🇺🇸 FIBERSTATE-AS2604238.92.24.0/24 FiberState Prefix | ||||||
| PTR | usaserver2.hostingbangladesh.com | ||||||
| NS | us3.hostingbangladesh.com ⭐ | ||||||
| A | 38.92.24.147🇺🇸 FIBERSTATE-AS2604238.92.24.0/24 FiberState Prefix | ||||||
| PTR | usaserver2.hostingbangladesh.com | ||||||
| NS | us4.hostingbangladesh.com | ||||||
| A | 38.92.24.147🇺🇸 FIBERSTATE-AS2604238.92.24.0/24 FiberState Prefix | ||||||
| PTR | usaserver2.hostingbangladesh.com | ||||||
| MX | classbd.com ⭐ | ||||||
| A | 38.92.24.147🇺🇸 FIBERSTATE-AS2604238.92.24.0/24 FiberState Prefix | ||||||
| PTR | usaserver2.hostingbangladesh.com | ||||||
| TXT | v=spf1 ip4:38.92.24.147 include:spf-c.mailbaby.net +a +mx +ip4:172.96.161.196... | ||||||
| SOA | us3.hostingbangladesh.comhostingbangladeshmonitor@gmail.com 2026-05-24 #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=1782104540 | ||||||
MX for
classbd.com |
Subdomains
www.classbd.com |
Same first word
classbd.com |
Similar names
scdlabs.com |
csdlabs.com |
classdb.de |
dsclabs.com |
dbclass.cn |
dbclass.com |
cdslabs.com |
cdslabs.net |
sdclabs.com |
cssdlab.com |
bcsadsl.ddns.net |
classdb.com |
bdclass.com |
DNS History
8 records (4 active, 4 former)
○NSns1.studysols.com2017-01-04 → 2018-07-22 · 4 obs
● 2018-07-22 17:18:22
○ 2026-03-08 09:49:44
○ 2026-06-22 05:27:32
○NSns2.studysols.com2017-01-04 → 2018-07-22 · 4 obs
● 2018-07-22 17:18:22
○ 2026-03-08 09:49:44
○ 2026-06-22 05:27:32
●NSus3.hostingbangladesh.com2026-03-08 → 2026-06-22 · 3 obs
● 2026-03-08 09:49:44
● 2026-06-22 05:27:32
●NSus4.hostingbangladesh.com2026-03-08 → 2026-06-22 · 3 obs
● 2026-03-08 09:49:44
● 2026-06-22 05:27:32
●MXclassbd.com2017-01-04 → 2026-06-22 · 2 obs
● 2026-06-22 05:27:32
○A142.44.139.32018-07-22 → 2018-07-22 · 4 obs
● 2018-07-22 17:18:22
○ 2026-03-08 09:49:44
○ 2026-06-22 05:27:32
○A158.69.124.32017-01-04 → 2017-01-04 · 3 obs
○ 2018-07-22 17:18:22
○ 2026-06-22 05:27:32
●A38.92.24.1472026-03-08 → 2026-06-22 · 3 obs
● 2026-03-08 09:49:44
● 2026-06-22 05:27:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| classbd.com | us3.hostingbangladesh.com, us4.hostingbangladesh.com | 2 records |
✅ Authoritative Response
Server:38.92.24.147
NS records: us3.hostingbangladesh.com, us4.hostingbangladesh.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for classbd.com (unsigned zone)
⏱️ Timing
Total: 245ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 38.92.24.147 |
| NS | 2 | us4.hostingbangladesh.com, us3.hostingbangladesh.com |
| MX | 1 | classbd.com (pri: 0) |
| TXT | 1 | v=spf1 ip4:38.92.24.147 include:spf-c.ma |
| SOA | 1 | us3.hostingbangladesh.com hostingbanglad |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (us3.hostingbangladesh.com, us4.hostingbangladesh.com)
Analysis
Hierarchy
The domain www.classbd.com falls under the parent classbd.com.
Mail Server Role
classbd.com handles its own mail, functioning as its own mail server.
IP Addresses
classbd.com resolves to just one IP address, 38.92.24.147.
Two other host names, along with goodsupportbd.com, chandersmhs.edu.bd and knitplusltd.com, also share IP numbers with classbd.com.
Name Servers
classbd.com uses two name servers for its delegation: us3.hostingbangladesh.com and us4.hostingbangladesh.com.
classbd.com shares its NS records with other domains, for example bbf.digital, thetruemuslim.com, cinetime.net and two others.
us3.hostingbangladesh.com resolves to 38.92.24.147; us4.hostingbangladesh.com resolves to the same IP address, 38.92.24.147.
Both us3.hostingbangladesh.com and us4.hostingbangladesh.com resolve to 38.92.24.147 IP addresses each.
Mail Servers
classbd.com is served by just one mail server: classbd.com.
classbd.com directs to just one IP number, 38.92.24.147.