studycrowd.org - robtex.com
studycrowd.org
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns1.registrar-servers.com ⭐ | ||||||
| A | 2610:a1:1024::200🇺🇸 MAINT-ID-120082610:a1:1024::/48 Neustar | ||||||
| PTR | dns1.namecheaphosting.com | ||||||
| PTR | dns1.registrar-servers.com | ||||||
| A | 156.154.132.200🇺🇸 MAINT-ID-12008156.154.132.0/24 Neustar | ||||||
| PTR | dns1.namecheaphosting.com | ||||||
| PTR | dns1.registrar-servers.com | ||||||
| NS | dns2.registrar-servers.com | ||||||
| A | 2610:a1:1025::200🇺🇸 MAINT-ID-120082610:a1:1025::/48 Neustar | ||||||
| PTR | dns2.namecheaphosting.com | ||||||
| PTR | dns2.registrar-servers.com | ||||||
| A | 156.154.133.200🇺🇸 MAINT-ID-12008156.154.133.0/24 Neustar | ||||||
| PTR | dns2.namecheaphosting.com | ||||||
| PTR | dns2.registrar-servers.com | ||||||
| SOA | dns1.registrar-servers.comhostmaster@registrar-servers.com serial=1582342214 | ||||||
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=1790270757 | ||||||
Same first word
studycrowd.ai |
studycrowd.org |
studycrowd.com |
Previous names
Next names
DNS History
7 records (2 active, 5 former)
●NSdns1.registrar-servers.com2026-09-24 → 2026-09-24 · 3 obs
○ 2020-01-12 16:45:48
● 2026-09-24 14:49:54
● 2026-09-24 17:45:36
● 2026-09-24 14:49:54
● 2026-09-24 17:45:36
●NSdns2.registrar-servers.com2026-09-24 → 2026-09-24 · 3 obs
○ 2020-01-12 16:45:48
● 2026-09-24 14:49:54
● 2026-09-24 17:45:36
● 2026-09-24 14:49:54
● 2026-09-24 17:45:36
○NSns57.1and1.com2015-07-07 → 2020-01-12 · 4 obs
● 2015-07-07 07:44:32
● 2020-01-12 16:45:48
○ 2026-09-24 14:49:54
○ 2026-09-24 17:45:36
● 2020-01-12 16:45:48
○ 2026-09-24 14:49:54
○ 2026-09-24 17:45:36
○NSns58.1and1.com2015-07-07 → 2020-01-12 · 4 obs
● 2015-07-07 07:44:32
● 2020-01-12 16:45:48
○ 2026-09-24 14:49:54
○ 2026-09-24 17:45:36
● 2020-01-12 16:45:48
○ 2026-09-24 14:49:54
○ 2026-09-24 17:45:36
○MXmx00.1and1.com2015-07-07 → 2020-01-12 · 4 obs
● 2015-07-07 07:44:32
● 2020-01-12 16:45:48
○ 2026-09-24 14:49:54
○ 2026-09-24 17:45:36
● 2020-01-12 16:45:48
○ 2026-09-24 14:49:54
○ 2026-09-24 17:45:36
○MXmx01.1and1.com2015-07-07 → 2020-01-12 · 4 obs
● 2015-07-07 07:44:32
● 2020-01-12 16:45:48
○ 2026-09-24 14:49:54
○ 2026-09-24 17:45:36
● 2020-01-12 16:45:48
○ 2026-09-24 14:49:54
○ 2026-09-24 17:45:36
○A74.208.28.342015-07-07 → 2020-01-12 · 4 obs
● 2015-07-07 07:44:32
● 2020-01-12 16:45:48
○ 2026-09-24 14:49:54
○ 2026-09-24 17:45:36
● 2020-01-12 16:45:48
○ 2026-09-24 14:49:54
○ 2026-09-24 17:45:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| studycrowd.org | dns1.registrar-servers.com, dns2.registrar-servers.com | - |
✅ Authoritative Response
Server:156.154.133.200
NS records: dns1.registrar-servers.com, dns2.registrar-servers.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for studycrowd.org (unsigned zone)
⏱️ Timing
Total: 530ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns1.registrar-servers.com, dns2.registrar-servers.com |
| SOA | 1 | dns1.registrar-servers.com hostmaster.re |
Analysis
Name Servers
studycrowd.org uses two name servers for its delegation: dns1.registrar-servers.com and dns2.registrar-servers.com.
studycrowd.org uses the same name servers as several other domains — among them willmsrealestate.com, taxienglish.com, darshboards.com and two more.
The two host names dns1.registrar-servers.com and dns2.registrar-servers.com each have a pair of IP addresses: dns1.registrar-servers.com has 156.154.132.200 and 2610:a1:1024::200, and dns2.registrar-servers.com has 156.154.133.200 and 2610:a1:1025::200.