studyguide.cn - dns.ninja
studyguide.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns2.afternic.com ⭐ | ||||||
| A | 2603:5:2226::45🇺🇸 GODADDY-DNS2603:5:2220::/44 | ||||||
| PTR | ns2.afternic.com | ||||||
| A | 173.201.66.69🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns2.afternic.com | ||||||
| NS | ns1.afternic.com | ||||||
| A | 2603:5:2126::45🇺🇸 GODADDY-DNS2603:5:2120::/44 | ||||||
| PTR | ns1.afternic.com | ||||||
| A | 97.74.98.69🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns1.afternic.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns2.afternic.comdns@jomax.net serial=1 | ||||||
cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2034977687 | ||||||
Same first word
studyguide.cn |
studyguide.co |
studyguide.us |
studyguide.de |
studyguide.gr |
studyguide.net |
studyguide.eu |
studyguide.com |
studyguide.ca |
studyguide.buzz |
studyguide.co.in |
studyguide.org |
studyguide.ch |
studyguide.at |
Similar names
DNS History
10 records (4 active, 6 former)
○NSdns1.hichina.com2016-12-02 → 2017-11-19 · 5 obs
● 2016-12-02 02:49:28
● 2017-11-19 18:05:30
○ 2026-06-23 01:52:04
○ 2026-06-28 02:34:28
○NSdns2.hichina.com2016-12-02 → 2017-11-19 · 5 obs
● 2016-12-02 02:49:28
● 2017-11-19 18:05:30
○ 2026-06-23 01:52:04
○ 2026-06-28 02:34:28
○NSns.email.com.cn2015-06-18 → 2016-04-23 · 4 obs
● 2016-04-23 12:48:38
○ 2016-12-02 02:49:28
○ 2026-06-28 02:34:28
●NSns1.afternic.com2026-06-23 → 2026-06-28 · 3 obs
● 2026-06-23 01:52:04
● 2026-06-28 02:34:28
●NSns2.afternic.com2026-06-23 → 2026-06-28 · 3 obs
● 2026-06-23 01:52:04
● 2026-06-28 02:34:28
○NSns2.email.com.cn2015-10-31 → 2016-04-23 · 5 obs
● 2015-10-31 07:57:02
● 2016-04-23 12:48:38
○ 2016-12-02 02:49:28
○ 2026-06-28 02:34:28
○MX.2026-06-23 → 2026-06-28 · 2 obs
○ 2026-06-28 02:34:28
●A13.248.169.482026-06-23 → 2026-06-28 · 3 obs
● 2026-06-23 01:52:04
● 2026-06-28 02:34:28
○A23.27.192.1172015-06-18 → 2017-11-19 · 4 obs
● 2017-11-19 18:05:30
○ 2026-06-23 01:52:04
○ 2026-06-28 02:34:28
●A76.223.54.1462026-06-23 → 2026-06-28 · 3 obs
● 2026-06-23 01:52:04
● 2026-06-28 02:34:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, d.dns.cn, a.dns.cn, c.dns.cn... | - |
| studyguide.cn | ns1.afternic.com, ns2.afternic.com | - |
✅ Authoritative Response
Server:97.74.98.69
NS records: ns1.afternic.com, ns2.afternic.com
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at studyguide.cn: Error: DNS query timeout: 203.119.29.1 for DS studyguide.cn
⏱️ Timing
Total: 4295ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 76.223.54.146, 13.248.169.48 |
| NS | 2 | ns1.afternic.com, ns2.afternic.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns1.afternic.com dns.jomax.net |
Analysis
IP Addresses
studyguide.cn directs to two IP numbers, 13.248.169.48 and 76.223.54.146
Among the host names that share IP numbers with studyguide.cn are jqsx.com, beatmed.com, hostmaster.vonhumboldt.com and two others.
Name Servers
studyguide.cn is served by two delegated name servers, ns1.afternic.com and ns2.afternic.com.
studyguide.cn has the same name server delegation as a number of other domains, such as smoothen.com, www.jackiewoods.com, www.cambel.com and two more.
studyguide.cn shares at least some of its name servers with other domains, including normalai.com, drunken.net, b8w8.com and two others.
These name servers are frequently paired with the name servers verification-k4ibaefv92b8mcahic8cdo.ns101.verify.hn and verification-d3jclucsp89ganyqbydeny.ns101.verify.hn.
Each of the two host names carries two IP addresses: ns1.afternic.com points to 97.74.98.69 and 2603:5:2126::45, and ns2.afternic.com points to 173.201.66.69 and 2603:5:2226::45.