rstudy.com - dns.ninja
rstudy.com
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=1785274872 | ||||||
Same first word
Similar names
DNS History
11 records (11 active, 0 former)
●NSdns1.registrar-servers.com2015-06-27 → 2026-07-28 · 2 obs
● 2026-07-28 21:50:04
●NSdns2.registrar-servers.com2015-06-27 → 2026-07-28 · 2 obs
● 2026-07-28 21:50:04
●NSdns3.registrar-servers.com2015-06-27 → 2026-07-28 · 2 obs
● 2026-07-28 21:50:04
●NSdns4.registrar-servers.com2015-06-27 → 2026-07-28 · 2 obs
● 2026-07-28 21:50:04
●NSdns5.registrar-servers.com2015-06-27 → 2026-07-28 · 2 obs
● 2026-07-28 21:50:04
●MXalt1.aspmx.l.google.com2015-06-27 → 2026-07-28 · 2 obs
● 2026-07-28 21:50:04
●MXalt2.aspmx.l.google.com2015-06-27 → 2026-07-28 · 2 obs
● 2026-07-28 21:50:04
●MXalt3.aspmx.l.google.com2015-06-27 → 2026-07-28 · 2 obs
● 2026-07-28 21:50:04
●MXalt4.aspmx.l.google.com2015-06-27 → 2026-07-28 · 2 obs
● 2026-07-28 21:50:04
●MXaspmx.l.google.com2015-06-27 → 2026-07-28 · 2 obs
● 2026-07-28 21:50:04
●A208.91.197.272015-06-27 → 2026-07-28 · 2 obs
● 2026-07-28 21:50:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| rstudy.com | dns1.registrar-servers.com, dns2.registrar-servers.com | 4 records |
✅ 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 rstudy.com (unsigned zone)
⏱️ Timing
Total: 191ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 208.91.197.27 |
| NS | 5 | dns1.registrar-servers.com, dns2.registrar-servers.com... |
| MX | 5 | aspmx.l.google.com (pri: 1), alt1.aspmx.l.google.com (pri: 5)... |
| TXT | 1 | google-site-verification=JoqFO5Ar5SGMt_j |
| SOA | 1 | dns1.registrar-servers.com hostmaster.re |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (dns1.registrar-servers.com, dns1.registrar-servers.com, dns2.registrar-servers.com...)
Analysis
IP Addresses
rstudy.com has exactly one IP address — 208.91.197.27.
form706.com, mail.gemmary.com, trymybi.com plus two other host names have IP numbers in common with rstudy.com.
Name Servers
Five name servers handle delegation for rstudy.com: dns1.registrar-servers.com, dns2.registrar-servers.com, dns3.registrar-servers.com and two others.
rstudy.com has at least partial name server overlap with other domains, such as skillselective.com, southfloridatechsupport.com, hankooklastik.com and two others.
It is common to see these name servers used together with name servers dns4.registrar-servers.com and dns5.registrar-servers.com.
Host names pointing to two IP addresses:
dns1.registrar-servers.com directs traffic to 156.154.132.200 and 2610:a1:1024::200.
dns2.registrar-servers.com directs traffic to 156.154.133.200 and 2610:a1:1025::200.
Host names resolving to a single IP address:
dns3.registrar-servers.com has the IP address 156.154.132.200.
dns4.registrar-servers.com has the IP address 156.154.133.200.
dns5.registrar-servers.com has the IP address 156.154.132.200.
Three host names point to 156.154.132.200: dns1.registrar-servers.com, dns3.registrar-servers.com and dns5.registrar-servers.com.
Both dns2.registrar-servers.com and dns4.registrar-servers.com resolve to 156.154.133.200 IP addresses each.
Mail Servers
Mail for rstudy.com is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
At least some of the mail servers used by rstudy.com are shared with other domains: dn-s.fr, ns500698.ns500759.ns500758.ns500735.ns500736.ns500698.ns500735.ns500736.ns500736.ns500708.ns500698.ns500698.ns500652.ns500619.ns500619.trackreceptor.com, ns500698.ns500759.ns500759.ns500758.ns500736.ns500735.ns500736.ns500735.ns500576.ns500708.ns500698.ns500619.ns500576.ns500619.ns500619.trackreceptor.com and two others among them.
These mail servers often appear in conjunction with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.
Host names pointing to two IP addresses:
aspmx.l.google.com directs traffic to 192.178.155.27 and 2607:f8b0:4004:c09::1a.
alt1.aspmx.l.google.com directs traffic to 108.177.123.26 and 2800:3f0:4003:c0f::1a.
alt2.aspmx.l.google.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1a.
alt3.aspmx.l.google.com directs traffic to 192.178.223.26 and 2a00:1450:4009:c0f::1a.
alt4.aspmx.l.google.com directs traffic to 172.253.157.27 and 2a00:1450:400c:c23::1a.