studynotes.us - robtex.com
studynotes.us
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns-cloud-c1.googledomains.com ⭐ | ||||||
| A | 2001:4860:4802:32::6c🇺🇸 Google2001:4860::/32 | ||||||
| PTR | ns-cloud-c1.googledomains.com | ||||||
| A | 216.239.32.108🇺🇸 Google216.239.32.0/24 | ||||||
| PTR | ns-cloud-c1.googledomains.com | ||||||
| NS | ns-cloud-c2.googledomains.com | ||||||
| A | 2001:4860:4802:34::6c🇺🇸 Google2001:4860::/32 | ||||||
| PTR | ns-cloud-c2.googledomains.com | ||||||
| A | 216.239.34.108🇺🇸 Google216.239.34.0/24 | ||||||
| PTR | ns-cloud-c2.googledomains.com | ||||||
| NS | ns-cloud-c3.googledomains.com | ||||||
| A | 2001:4860:4802:36::6c🇺🇸 Google2001:4860::/32 | ||||||
| PTR | ns-cloud-c3.googledomains.com | ||||||
| A | 216.239.36.108🇺🇸 Google216.239.36.0/24 | ||||||
| PTR | ns-cloud-c3.googledomains.com | ||||||
| NS | ns-cloud-c4.googledomains.com | ||||||
| A | 2001:4860:4802:38::6c🇺🇸 Google2001:4860::/32 | ||||||
| PTR | ns-cloud-c4.googledomains.com | ||||||
| A | 216.239.38.108🇺🇸 Google216.239.38.0/24 | ||||||
| PTR | ns-cloud-c4.googledomains.com | ||||||
| SOA | ns-cloud-c1.googledomains.comcloud-dns-hostmaster@google.com serial=3 | ||||||
us
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.cctld.us ⭐ | ||||||
| NS | b.cctld.us | ||||||
| NS | f.cctld.us | ||||||
| NS | k.cctld.us | ||||||
| NS | m.cctld.us | ||||||
| NS | n.cctld.us | ||||||
| NS | w.cctld.us | ||||||
| NS | x.cctld.us | ||||||
| NS | y.cctld.us | ||||||
| SOA | a.cctld.usadmin@tldns.godaddy serial=1783229751 | ||||||
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
●NSns-cloud-c1.googledomains.com2026-04-02 → 2026-07-05 · 3 obs
● 2026-04-02 18:20:54
● 2026-07-05 05:49:18
●NSns-cloud-c2.googledomains.com2026-04-02 → 2026-07-05 · 3 obs
● 2026-04-02 18:20:54
● 2026-07-05 05:49:18
●NSns-cloud-c3.googledomains.com2026-04-02 → 2026-07-05 · 3 obs
● 2026-04-02 18:20:54
● 2026-07-05 05:49:18
●NSns-cloud-c4.googledomains.com2026-04-02 → 2026-07-05 · 3 obs
● 2026-04-02 18:20:54
● 2026-07-05 05:49:18
○NSns17.domaincontrol.com2015-05-26 → 2020-03-19 · 4 obs
● 2020-03-19 19:43:02
○ 2026-04-02 18:20:54
○ 2026-07-05 05:49:18
○NSns18.domaincontrol.com2015-05-26 → 2020-03-19 · 4 obs
● 2020-03-19 19:43:02
○ 2026-04-02 18:20:54
○ 2026-07-05 05:49:18
○MXmailstore1.secureserver.net2015-05-26 → 2020-03-19 · 4 obs
● 2020-03-19 19:43:02
○ 2026-04-02 18:20:54
○ 2026-07-05 05:49:18
○MXsmtp.secureserver.net2015-05-26 → 2020-03-19 · 4 obs
● 2020-03-19 19:43:02
○ 2026-04-02 18:20:54
○ 2026-07-05 05:49:18
○A50.63.202.362015-05-26 → 2020-03-19 · 4 obs
● 2020-03-19 19:43:02
○ 2026-04-02 18:20:54
○ 2026-07-05 05:49:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| us | n.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us... | - |
| studynotes.us | ns-cloud-c2.googledomains.com, ns-cloud-c1.googledomains.com, ns-cloud-c4.googledomains.com, ns-cloud-c3.googledomains.com | - |
✅ Authoritative Response
Server:216.239.38.108
NS records: ns-cloud-c2.googledomains.com, ns-cloud-c1.googledomains.com, ns-cloud-c4.googledomains.com, ns-cloud-c3.googledomains.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 726ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-cloud-c3.googledomains.com, ns-cloud-c2.googledomains.com... |
| SOA | 1 | ns-cloud-c1.googledomains.com cloud-dns- |
Analysis
Name Servers
The authoritative name servers for studynotes.us are ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com and ns-cloud-c4.googledomains.com.
studynotes.us partially shares its NS delegation with several other domains, including dynamiccardcollectors.com, katiesproul.com, thefinaltouch.biz and two others.
ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com and ns-cloud-c4.googledomains.com each carry two IP addresses. ns-cloud-c1.googledomains.com has 216.239.32.108 and 2001:4860:4802:32::6c; ns-cloud-c2.googledomains.com has 216.239.34.108 and 2001:4860:4802:34::6c; ns-cloud-c3.googledomains.com has 216.239.36.108 and 2001:4860:4802:36::6c; ns-cloud-c4.googledomains.com has 216.239.38.108 and 2001:4860:4802:38::6c.