react-study.org - robtex.com
react-study.org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 216.150.1.1🇨🇦 Amazon216.150.1.0/24 EC2 Prefix | ||||||
| NS | ns1.simply.com ⭐ | ||||||
| A | 2a02:2339:1:15c::4562:4562🇩🇰 team-blue-denmark2a02:2339::/36 | ||||||
| PTR | ns1.simply.com | ||||||
| A | 91.197.248.78🇩🇰 team-blue-denmark91.197.248.0/22 | ||||||
| PTR | ns1.simply.com | ||||||
| NS | ns2.simply.com | ||||||
| A | 2a02:2339:4006:101::4562:4562🇩🇰 team-blue-denmark2a02:2339:4000::/34 | ||||||
| PTR | ns2.simply.com | ||||||
| A | 185.25.141.15🇩🇰 team-blue-denmark185.25.141.0/24 Zitcom A/S | ||||||
| PTR | ns2.simply.com | ||||||
| NS | ns3.simply.com | ||||||
| A | 91.197.248.79🇩🇰 team-blue-denmark91.197.248.0/22 | ||||||
| PTR | ns3.simply.com | ||||||
| MX | mx.simply.com ⭐ | ||||||
| A | 94.231.106.20🇩🇰 team-blue-denmark94.231.96.0/20 ZITCOM A/S | ||||||
| PTR | mx.simply.com | ||||||
| TXT | v=spf1 include:spf.simply.com -all | ||||||
| SOA | ns1.simply.comhostmaster@simply.com 2026-07-06 #0 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1788119585 | ||||||
Same first word
react-study.org |
Similar names
Previous names
Next names
DNS History
5 records (5 active, 0 former)
●NSns1.simply.com2026-08-27 → 2026-08-30 · 2 obs
● 2026-08-30 20:21:14
●NSns2.simply.com2026-08-27 → 2026-08-30 · 2 obs
● 2026-08-30 20:21:14
●NSns3.simply.com2026-08-27 → 2026-08-30 · 2 obs
● 2026-08-30 20:21:14
●MXmx.simply.com2026-08-27 → 2026-08-30 · 2 obs
● 2026-08-30 20:21:14
●A216.150.1.12026-08-27 → 2026-08-30 · 2 obs
● 2026-08-30 20:21:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| react-study.org | ns3.simply.com, ns1.simply.com, ns2.simply.com | - |
✅ Authoritative Response
Server:91.197.248.79
NS records: ns3.simply.com, ns1.simply.com, ns2.simply.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1523ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.150.1.1 |
| NS | 3 | ns2.simply.com, ns1.simply.com... |
| MX | 1 | mx.simply.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.simply.com -all |
| SOA | 1 | ns1.simply.com hostmaster.simply.com |
Analysis
IP Addresses
react-study.org points to a single IP number: 216.150.1.1.
Additional host names — bbfilepoint.com, stremu.com, mtmaintenance.ca and two others — share IP numbers with react-study.org.
Name Servers
react-study.org is served by three name servers: ns1.simply.com, ns2.simply.com and ns3.simply.com.
react-study.org has at least partial name server overlap with other domains, such as kulturstationensilkeborg.dk, logovin.dk, kospi.dk and two others.
It is common to find these name servers paired with the name servers ns4.simply.com.
Host names with two IP numbers:
The A records for ns1.simply.com return 91.197.248.78 and 2a02:2339:1:15c::4562:4562.
The A records for ns2.simply.com return 185.25.141.15 and 2a02:2339:4006:101::4562:4562.
Host names pointing to a single IP address:
ns3.simply.com resolves to the IP address 91.197.248.79.
Mail Servers
react-study.org has one mail server: mx.simply.com.
react-study.org shares the same mail server setup as other domains, including affiliatelink.store, notdraget.se, fosab.se and two others.
react-study.org has mail servers in common with other domains — for example yvonnekrogh.dk and dpfa.dk.
mx.simply.com resolves to 94.231.106.20 and no other IP number.