classoos.com - dns.ninja
classoos.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=1781994580 | ||||||
Subdomains
Same first word
DNS History
13 records (10 active, 3 former)
●NSns-1161.awsdns-17.org2021-05-09 → 2026-06-20 · 3 obs
● 2021-05-09 15:20:16
● 2026-06-20 22:49:42
●NSns-2011.awsdns-59.co.uk2021-05-09 → 2026-06-20 · 3 obs
● 2021-05-09 15:20:16
● 2026-06-20 22:49:42
●NSns-251.awsdns-31.com2021-05-09 → 2026-06-20 · 3 obs
● 2021-05-09 15:20:16
● 2026-06-20 22:49:42
●NSns-644.awsdns-16.net2021-05-09 → 2026-06-20 · 3 obs
● 2021-05-09 15:20:16
● 2026-06-20 22:49:42
○NSns41.domaincontrol.com2016-12-19 → 2016-12-19 · 3 obs
○ 2021-05-09 15:20:16
○ 2026-06-20 22:49:42
○NSns42.domaincontrol.com2016-12-19 → 2016-12-19 · 3 obs
○ 2021-05-09 15:20:16
○ 2026-06-20 22:49:42
●MXalt1.aspmx.l.google.com2016-12-19 → 2026-06-20 · 2 obs
● 2026-06-20 22:49:42
●MXalt2.aspmx.l.google.com2016-12-19 → 2026-06-20 · 2 obs
● 2026-06-20 22:49:42
●MXaspmx.l.google.com2016-12-19 → 2026-06-20 · 2 obs
● 2026-06-20 22:49:42
●MXaspmx2.googlemail.com2016-12-19 → 2026-06-20 · 2 obs
● 2026-06-20 22:49:42
●MXaspmx3.googlemail.com2016-12-19 → 2026-06-20 · 2 obs
● 2026-06-20 22:49:42
○A52.16.164.1142016-12-19 → 2016-12-19 · 3 obs
○ 2021-05-09 15:20:16
○ 2026-06-20 22:49:42
●A52.213.149.2162021-05-09 → 2026-06-20 · 3 obs
● 2021-05-09 15:20:16
● 2026-06-20 22:49:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, j.gtld-servers.net, i.gtld-servers.net, h.gtld-servers.net... | - |
| classoos.com | ns-251.awsdns-31.com, ns-644.awsdns-16.net, ns-1161.awsdns-17.org, ns-2011.awsdns-59.co.uk | 2 records |
✅ Authoritative Response
Server:205.251.192.251
NS records: ns-251.awsdns-31.com, ns-644.awsdns-16.net, ns-1161.awsdns-17.org, ns-2011.awsdns-59.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for classoos.com (unsigned zone)
⏱️ Timing
Total: 239ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 52.213.149.216 |
| NS | 4 | ns-1161.awsdns-17.org, ns-2011.awsdns-59.co.uk... |
| MX | 5 | aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 20)... |
| TXT | 5 | MS=ms47439832, Sendinblue-code:602eb130710a38e41ca6a719... |
| SOA | 1 | ns-644.awsdns-16.net awsdns-hostmaster.a |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-251.awsdns-31.com, ns-251.awsdns-31.com)
Analysis
Hierarchy
img.classoos.com, stb.classoos.com, st.classoos.com, my.classoos.com and appapi.classoos.com are all subdomains of classoos.com.
IP Addresses
classoos.com has exactly one IP address — 52.213.149.216.
Host names such as classoos.co.uk, ec2-52-213-149-216.eu-west-1.compute.amazonaws.com and kalsefer.com share their IP numbers with classoos.com.
Name Servers
Four name servers handle the delegation for classoos.com: ns-251.awsdns-31.com, ns-644.awsdns-16.net, ns-1161.awsdns-17.org and ns-2011.awsdns-59.co.uk.
The name servers of classoos.com overlap at least partially with those of other domains — among them jsreportonline.net, radioplus.be, far-me.com and two more.
The name servers ns-92.awsdns-11.com, ns-621.awsdns-13.net and ns-1375.awsdns-43.org are commonly seen alongside these name servers.
Each of the four hosts ns-251.awsdns-31.com, ns-644.awsdns-16.net, ns-1161.awsdns-17.org and ns-2011.awsdns-59.co.uk has two IP addresses. ns-251.awsdns-31.com points to 205.251.192.251 and 2600:9000:5300:fb00::1. ns-644.awsdns-16.net points to 205.251.194.132 and 2600:9000:5302:8400::1. ns-1161.awsdns-17.org points to 205.251.196.137 and 2600:9000:5304:8900::1. ns-2011.awsdns-59.co.uk points to 205.251.199.219 and 2600:9000:5307:db00::1.
Mail Servers
Five mail servers handle classoos.com: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.
At least some of the mail servers used by classoos.com are shared with other domains: azplace.net, ns500671.ns500731.ns500671.ns500671.ns500754.ns500754.ns500688.ns500291.ns500291.ns500678.ns500291.ns500131.lustychickser.com, ns500698.ns500759.ns500698.ns500759.ns500735.ns500735.ns500735.ns500698.ns500698.ns500708.ns500708.ns500576.ns500619.trackreceptor.com and two others among them.
These mail servers are often deployed together with alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 other mail servers.
Host names pointing to two IP addresses:
aspmx2.googlemail.com directs traffic to 108.177.123.26 and 2800:3f0:4003:c0f::1a.
aspmx3.googlemail.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1b.
aspmx.l.google.com directs traffic to 142.251.16.27 and 2607:f8b0:4004:c08::1b.
alt1.aspmx.l.google.com directs traffic to 108.177.123.26 and 2800:3f0:4003:c0f::1b.
alt2.aspmx.l.google.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1b.
Both aspmx2.googlemail.com and alt1.aspmx.l.google.com resolve to 108.177.123.26 IP addresses each.
Both aspmx3.googlemail.com and alt2.aspmx.l.google.com resolve to 2a00:1450:400b:c02::1b IP addresses each.
Both aspmx3.googlemail.com and alt2.aspmx.l.google.com resolve to 172.253.116.27 IP addresses each.