tutorial.cn - dns.ninja
tutorial.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 52.20.84.62🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix | ||||||
| PTR | ec2-52-20-84-62.compute-1.amazonaws.com | ||||||
| NS | ns1.atom.com ⭐ | ||||||
| A | 44.219.81.145🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix | ||||||
| PTR | ec2-44-219-81-145.compute-1.amazonaws.com | ||||||
| NS | ns2.atom.com | ||||||
| A | 50.19.240.86🇺🇸 Amazon50.19.128.0/17 EC2 IAD prefix | ||||||
| PTR | ec2-50-19-240-86.compute-1.amazonaws.com | ||||||
| SOA | ns1.atom.comhostmaster@tutorial.cn 2025-11-11 #1 | ||||||
cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| 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 2035-08-21 #49 | ||||||
Same first word
Similar names
DNS History
17 records (3 active, 14 former)
○NSbuy.internettraffic.com2015-10-27 → 2016-06-20 · 5 obs
● 2015-10-27 06:50:28
● 2016-06-20 02:16:18
○ 2017-02-13 06:37:48
○ 2026-07-24 03:42:24
○NSdns.namescout.com2015-06-14 → 2015-06-14 · 3 obs
○ 2015-10-27 06:50:28
○ 2026-07-24 03:42:24
○NSdns2.namescout.com2015-06-14 → 2015-06-14 · 3 obs
○ 2015-10-27 06:50:28
○ 2026-07-24 03:42:24
○NSns1.afternic.com2026-02-28 → 2026-02-28 · 3 obs
● 2026-02-28 19:36:18
○ 2026-07-24 03:42:24
○NSns1.uniregistrymarket.link2017-02-13 → 2017-02-13 · 4 obs
● 2017-02-13 06:37:48
○ 2026-02-28 19:36:18
○ 2026-07-24 03:42:24
○NSns2.afternic.com2026-02-28 → 2026-02-28 · 3 obs
● 2026-02-28 19:36:18
○ 2026-07-24 03:42:24
○NSns2.uniregistrymarket.link2017-02-13 → 2017-02-13 · 4 obs
● 2017-02-13 06:37:48
○ 2026-02-28 19:36:18
○ 2026-07-24 03:42:24
○NSsell.internettraffic.com2015-10-27 → 2016-06-20 · 5 obs
● 2015-10-27 06:50:28
● 2016-06-20 02:16:18
○ 2017-02-13 06:37:48
○ 2026-07-24 03:42:24
○MXloopback.namescout.com2015-06-14 → 2015-06-14 · 3 obs
○ 2015-10-27 06:50:28
○ 2026-07-24 03:42:24
○A13.248.169.482026-02-28 → 2026-02-28 · 3 obs
● 2026-02-28 19:36:18
○ 2026-07-24 03:42:24
●A52.20.84.622026-07-24 → 2026-07-24 · 2 obs
● 2026-07-24 03:42:24
○A54.208.19.1972015-06-14 → 2015-06-14 · 3 obs
○ 2015-10-27 06:50:28
○ 2026-07-24 03:42:24
○A69.172.201.1532016-06-20 → 2017-02-13 · 5 obs
● 2016-06-20 02:16:18
● 2017-02-13 06:37:48
○ 2026-02-28 19:36:18
○ 2026-07-24 03:42:24
○A69.172.201.2082015-10-27 → 2016-02-11 · 5 obs
● 2015-10-27 06:50:28
● 2016-02-11 22:06:14
○ 2016-06-20 02:16:18
○ 2026-07-24 03:42:24
○A76.223.54.1462026-02-28 → 2026-02-28 · 3 obs
● 2026-02-28 19:36:18
○ 2026-07-24 03:42:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, e.dns.cn, d.dns.cn, c.dns.cn... | - |
| tutorial.cn | ns1.atom.com, ns2.atom.com | - |
✅ Authoritative Response
Server:50.19.240.86
NS records: ns1.atom.com, ns2.atom.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tutorial.cn (unsigned zone)
⏱️ Timing
Total: 841ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 52.20.84.62 |
| NS | 2 | ns1.atom.com, ns2.atom.com |
| SOA | 1 | ns1.atom.com hostmaster.tutorial.cn |
Analysis
IP Addresses
tutorial.cn directs to one IP number, which is 52.20.84.62.
Among the host names that share IP numbers with tutorial.cn are deepseed.com, chewably.com, euholding.com and two others.
Name Servers
DNS delegation for tutorial.cn points to two name servers: ns1.atom.com and ns2.atom.com.
tutorial.cn has the same name server delegation as a number of other domains, such as multifamilyzoning.com, upcbl.com, pixmovies.com and two more.
tutorial.cn has a partial name server overlap with other domains — among them hostvoyage.com and ortix.org.
ns1.atom.com directs to 44.219.81.145 and ns2.atom.com directs to 50.19.240.86; each host name points to exactly one IP number.