challengebd.com - robtex.com
challengebd.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 208.115.236.166🇺🇸 Limestone Networks208.115.236.0/24 | ||||||
| PTR | falcon.amarserver.com | ||||||
| NS | ns1.topserverbd.com ⭐ | ||||||
| A | 208.115.236.166🇺🇸 Limestone Networks208.115.236.0/24 | ||||||
| PTR | falcon.amarserver.com | ||||||
| NS | ns2.topserverbd.com | ||||||
| A | 208.115.236.146🇺🇸 Limestone Networks208.115.236.0/24 | ||||||
| PTR | 146-236-115-208.static.reverse.lstn.net | ||||||
| MX | challengebd.com ⭐ | ||||||
| A | 208.115.236.166🇺🇸 Limestone Networks208.115.236.0/24 | ||||||
| PTR | falcon.amarserver.com | ||||||
| TXT | v=spf1 +a +mx +ip4:208.115.236.166 ~all | ||||||
| SOA | ns1.topserverbd.comictabd@gmail.com 2026-03-27 #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=1778301576 | ||||||
MX for
challengebd.com |
Same first word
challengebd.com |
Similar names
DNS History
4 records (4 active, 0 former)
●NSns1.topserverbd.com2026-03-21 → 2026-05-09 · 2 obs
● 2026-05-09 04:45:50
●NSns2.topserverbd.com2026-03-21 → 2026-05-09 · 2 obs
● 2026-05-09 04:45:50
●MXchallengebd.com2026-03-21 → 2026-05-09 · 2 obs
● 2026-05-09 04:45:50
●A208.115.236.1662026-03-21 → 2026-05-09 · 2 obs
● 2026-05-09 04:45:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | i.gtld-servers.net, f.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net... | - |
| challengebd.com | ns1.topserverbd.com, ns2.topserverbd.com | 2 records |
✅ Authoritative Response
Server:208.115.236.166
NS records: ns1.topserverbd.com, ns2.topserverbd.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for challengebd.com (unsigned zone)
⏱️ Timing
Total: 178ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 208.115.236.166 |
| NS | 2 | ns1.topserverbd.com, ns2.topserverbd.com |
| MX | 1 | challengebd.com (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:208.115.236.166 ~all |
| SOA | 1 | ns1.topserverbd.com ictabd.gmail.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.topserverbd.com, ns2.topserverbd.com)
Analysis
Mail Server Role
challengebd.com is the mail server for challengebd.com.
IP Addresses
challengebd.com resolves to a single IP: 208.115.236.166.
Other host names, for instance alaskainfo.org, ictabd.com, somikoron.com, ns1.itclanhost.com and beautysaviour.com share IP numbers with challengebd.com.
Name Servers
challengebd.com has two name servers: ns1.topserverbd.com and ns2.topserverbd.com.
challengebd.com shares the same name server setup as other domains, such as cwtbd.com, saco-watch.com, sacowatch.com and ictabd.com.
Host names with a single IP:
ns1.topserverbd.com points to 208.115.236.166
ns2.topserverbd.com points to 208.115.236.146
Mail Servers
One mail server handles challengebd.com.
Host name challengebd.com points to IP 208.115.236.166.