grsci.com - dns.ninja
grsci.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.hcst.net ⭐ | ||||||
| A | 3.215.248.165🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix | ||||||
| PTR | ec2-3-215-248-165.compute-1.amazonaws.com | ||||||
| NS | ns2.hcst.net | ||||||
| A | 69.133.42.116🇺🇸 RR-Star_Communications_LLC69.133.0.0/18 | ||||||
| PTR | syn-069-133-042-116.res.spectrum.com | ||||||
| NS | ns3.hcst.net | ||||||
| A | 192.52.183.252🇺🇸 AS3549192.52.183.0/24 | ||||||
| PTR | ns3.hcst.net | ||||||
| MX | tuscarora.hcst.net ⭐ | ||||||
| TXT | v=spf1 include:spf.protection.outlook.com -all | ||||||
| SOA | ns1.hcst.netsupport@hcst.com 2023-11-10 #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=1783828232 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●MXtuscarora.hcst.net2015-05-30 → 2026-07-12 · 2 obs
● 2026-07-12 04:16:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| grsci.com | ns1.hcst.net, ns2.hcst.net, ns3.hcst.net | - |
✅ Authoritative Response
Server:3.215.248.165
NS records: ns1.hcst.net, ns2.hcst.net, ns3.hcst.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for grsci.com (unsigned zone)
⏱️ Timing
Total: 267ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | ns1.hcst.net, ns2.hcst.net... |
| MX | 1 | tuscarora.hcst.net (pri: 10) |
| TXT | 1 | v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | ns1.hcst.net support.hcst.com |
Analysis
Name Servers
The authoritative name servers for grsci.com are ns1.hcst.net, ns2.hcst.net and ns3.hcst.net — three in total.
At least some of grsci.com's name servers are shared with other domains, for example grsci.org, ebusinessready.org, epcglobalintl.com and two more.
These name servers tend to be used in conjunction with the name servers ns1.hcst.com.
The hostnames ns1.hcst.net, ns2.hcst.net and ns3.hcst.net each resolve to a single IP: ns1.hcst.net → 3.215.248.165, ns2.hcst.net → 69.133.42.116, ns3.hcst.net → 192.52.183.252.
Mail Servers
grsci.com uses one mail server — tuscarora.hcst.net.
grsci.com has mail servers in common with grsci.org, intercertain.com, epcsystem.org and ccsi1.com, among others.