studystack.app - robtex.com

🛡️Domain Reputation CheckBlocklist, phishing & malware status

studystack.app

DNSSEC⚠️ Not signed
A185.158.133.1🇩🇪 Cloudflare185.158.133.0/24
PTRlovable-app-cd-1-4.p.l5e.io
NSdns1.registrar-servers.com
A2610:a1:1024::200🇺🇸 MAINT-ID-120082610:a1:1024::/48 Neustar
PTRdns1.namecheaphosting.com
PTRdns1.registrar-servers.com
A156.154.132.200🇺🇸 MAINT-ID-12008156.154.132.0/24 Neustar
PTRdns1.namecheaphosting.com
PTRdns1.registrar-servers.com
NSdns2.registrar-servers.com
A2610:a1:1025::200🇺🇸 MAINT-ID-120082610:a1:1025::/48 Neustar
PTRdns2.namecheaphosting.com
PTRdns2.registrar-servers.com
A156.154.133.200🇺🇸 MAINT-ID-12008156.154.133.0/24 Neustar
PTRdns2.namecheaphosting.com
PTRdns2.registrar-servers.com
MXaspmx.l.google.com
A2607:f8b0:4004:c21::1b🇺🇸 Google2607:f8b0:4004::/48
PTRpe-in-f27.1e100.net
A142.251.111.27🇺🇸 Google142.251.111.0/24
PTRbk-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c14::1a🇨🇱 Google2800:3f0:4003::/48
A192.178.234.27🇺🇸 Google192.178.0.0/15
PTRncsclj-in-f27.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.27🇺🇸 Google172.253.116.0/24
PTRdj-in-f27.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1b🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f27.1e100.net
A192.178.223.26🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c23::1b🇧🇪 Google2a00:1450:400c::/48
PTRyubrupd-in-f27.1e100.net
A172.253.157.26🇺🇸 Google172.253.0.0/16
PTRyubrupd-in-f26.1e100.net
TXTgoogle-site-verification=VtsUCkwjiOcrv-Yj4w1PMgd2A01GtO5j_mOzrNsS_3U
SOAdns1.registrar-servers.comhostmaster@registrar-servers.com serial=1760237181

app

DNSSEC🔒 Signed (DS record present)
NSns-tld1.charlestonroadregistry.com
NSns-tld2.charlestonroadregistry.com
NSns-tld3.charlestonroadregistry.com
NSns-tld4.charlestonroadregistry.com
NSns-tld5.charlestonroadregistry.com
SOAns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=101427
🔒 HSTS Preload (+subdomains)

Same first word

Similar names

Previous names

Next names

DNS History

8 records (8 active, 0 former)

NSdns1.registrar-servers.comdns2.registrar-servers.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comA185.158.133.1
NSdns1.registrar-servers.com2026-08-16 → 2026-08-30 · 2 obs
● 2026-08-16 00:44:20
● 2026-08-30 15:04:38
NSdns2.registrar-servers.com2026-08-16 → 2026-08-30 · 2 obs
● 2026-08-16 00:44:20
● 2026-08-30 15:04:38
MXalt1.aspmx.l.google.com2026-08-16 → 2026-08-30 · 2 obs
● 2026-08-16 00:44:20
● 2026-08-30 15:04:38
MXalt2.aspmx.l.google.com2026-08-16 → 2026-08-30 · 2 obs
● 2026-08-16 00:44:20
● 2026-08-30 15:04:38
MXalt3.aspmx.l.google.com2026-08-16 → 2026-08-30 · 2 obs
● 2026-08-16 00:44:20
● 2026-08-30 15:04:38
MXalt4.aspmx.l.google.com2026-08-16 → 2026-08-30 · 2 obs
● 2026-08-16 00:44:20
● 2026-08-30 15:04:38
MXaspmx.l.google.com2026-08-16 → 2026-08-30 · 2 obs
● 2026-08-16 00:44:20
● 2026-08-30 15:04:38
A185.158.133.12026-08-16 → 2026-08-30 · 2 obs
● 2026-08-16 00:44:20
● 2026-08-30 15:04:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
appns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...-
studystack.appdns2.registrar-servers.com, dns1.registrar-servers.com-

✅ Authoritative Response

Server:156.154.133.200

NS records: dns2.registrar-servers.com, dns1.registrar-servers.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studystack.app (unsigned zone)

⏱️ Timing

Total: 1406ms | Queries: -

📄 Records

TypeCountSample Data
A1185.158.133.1
NS2dns1.registrar-servers.com, dns2.registrar-servers.com
MX5aspmx.l.google.com (pri: 1), alt1.aspmx.l.google.com (pri: 5)...
TXT1google-site-verification=VtsUCkwjiOcrv-Y
SOA1dns1.registrar-servers.com hostmaster.re

Analysis

IP Addresses

studystack.app has exactly one IP address — 185.158.133.1.

churchofenglandabuseclaim.com, keenen.me, christopherjboyd.com plus two other host names have IP numbers in common with studystack.app.

Name Servers

DNS delegation for studystack.app points to two name servers: dns1.registrar-servers.com and dns2.registrar-servers.com.

The name server configuration of studystack.app is shared with other domains, for instance dalerosevents.com, thelovebodyguard.com, tlkvovwrd01.pro and two others.

There is at least partial name server overlap between studystack.app and other domains — fankind.tech, bensontrash.com, sormaya.com and two more among them.

The name servers dns3.registrar-servers.com, dns4.registrar-servers.com and dns5.registrar-servers.com are often found in combination with these name servers.

dns1.registrar-servers.com directs to 156.154.132.200 and 2610:a1:1024::200. dns2.registrar-servers.com directs to 156.154.133.200 and 2610:a1:1025::200. Each host name carries two IP addresses.

Mail Servers

studystack.app has five mail servers, which are 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 studystack.app are shared with other domains: ardec.com, joncotton.co.uk, halocheerathletics.co.nz and two others among them.

These mail servers are often deployed together with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 other mail servers.

Host names pointing to two IP addresses:

aspmx.l.google.com has two IP addresses: 142.251.111.27 and 2607:f8b0:4004:c21::1b.

alt1.aspmx.l.google.com has two IP addresses: 192.178.234.27 and 2800:3f0:4003:c14::1a.

alt2.aspmx.l.google.com has two IP addresses: 172.253.116.27 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com has two IP addresses: 192.178.223.26 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com has two IP addresses: 172.253.157.26 and 2a00:1450:400c:c23::1b.