blue-science.net - robtex.com
blue-science.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 209.42.27.71🇬🇧 WHG-SGP209.42.27.0/24 | ||||||
| NS | ns1.bluerack.com.bd ⭐ | ||||||
| A | 13.248.158.180🇺🇸 Amazon13.248.144.0/20 | ||||||
| PTR | a79764cc55c0ac9c0.awsglobalaccelerator.com | ||||||
| NS | ns2.bluerack.com.bd | ||||||
| A | 75.2.118.134🇺🇸 Amazon75.2.112.0/20 | ||||||
| PTR | abc65dd9a44b5332f.awsglobalaccelerator.com | ||||||
| NS | ns3.bluerack.com.bd | ||||||
| A | 76.223.26.245🇺🇸 Amazon76.223.16.0/20 | ||||||
| PTR | a79764cc55c0ac9c0.awsglobalaccelerator.com | ||||||
| NS | ns4.bluerack.com.bd | ||||||
| A | 99.83.147.209🇺🇸 Amazon99.83.144.0/20 | ||||||
| PTR | abc65dd9a44b5332f.awsglobalaccelerator.com | ||||||
| MX | blue-science.net ⭐ | ||||||
| A | 209.42.27.71🇬🇧 WHG-SGP209.42.27.0/24 | ||||||
| TXT | v=spf1 +a +mx +ip4:209.42.27.61 include:spf.mysecurecloudhost.com +ip4:209.42... | ||||||
| SOA | ns1.bluerack.com.bdservers@mysecurecloudhost.com 2026-06-12 #1 | ||||||
net
| 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=1785690452 | ||||||
MX for
blue-science.net |
Same first word
blue-science.net |
DNS History
6 records (6 active, 0 former)
●NSns1.bluerack.com.bd2026-03-21 → 2026-08-02 · 2 obs
● 2026-08-02 17:27:44
●NSns2.bluerack.com.bd2026-03-21 → 2026-08-02 · 2 obs
● 2026-08-02 17:27:44
●NSns3.bluerack.com.bd2026-03-21 → 2026-08-02 · 2 obs
● 2026-08-02 17:27:44
●NSns4.bluerack.com.bd2026-03-21 → 2026-08-02 · 2 obs
● 2026-08-02 17:27:44
●MXblue-science.net2026-03-21 → 2026-08-02 · 2 obs
● 2026-08-02 17:27:44
●A209.42.27.712026-03-21 → 2026-08-02 · 2 obs
● 2026-08-02 17:27:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | g.gtld-servers.net, e.gtld-servers.net, k.gtld-servers.net, a.gtld-servers.net... | - |
| blue-science.net | ns1.bluerack.com.bd, ns2.bluerack.com.bd, ns3.bluerack.com.bd, ns4.bluerack.com.bd | - |
✅ Authoritative Response
Server:13.248.158.180
NS records: ns1.bluerack.com.bd, ns2.bluerack.com.bd, ns3.bluerack.com.bd, ns4.bluerack.com.bd
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for blue-science.net (unsigned zone)
⏱️ Timing
Total: 1337ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 209.42.27.71 |
| NS | 4 | ns3.bluerack.com.bd, ns2.bluerack.com.bd... |
| MX | 1 | blue-science.net (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:209.42.27.61 include: |
| SOA | 1 | ns1.bluerack.com.bd servers.mysecureclou |
Analysis
Mail Server Role
The MX record for blue-science.net points back to blue-science.net — it is its own mail server.
IP Addresses
blue-science.net directs to one IP number, which is 209.42.27.71.
Among the host names that share IP numbers with blue-science.net are mail.bluerack.com.bd, xcel.com.sg, scic.sg and two others.
Name Servers
The domain blue-science.net is delegated to these four name servers: ns1.bluerack.com.bd, ns2.bluerack.com.bd, ns3.bluerack.com.bd and ns4.bluerack.com.bd.
At least some of blue-science.net's name servers are shared with other domains, for example vision-bd.com, dadinternationalbd.com, prome.com.bd and two more.
ns1.bluerack.com.bd resolves to 13.248.158.180. ns2.bluerack.com.bd resolves to 75.2.118.134. ns3.bluerack.com.bd resolves to 76.223.26.245. ns4.bluerack.com.bd resolves to 99.83.147.209. All four hosts carry exactly one IP address.
Mail Servers
The MX record for blue-science.net points to a single mail server: blue-science.net.
blue-science.net points to one IP number — 209.42.27.71.