classesonline.com - dns.ninja
classesonline.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 143.198.68.197🇺🇸 DIGITALOCEAN143.198.64.0/20 DigitalOcean | ||||||
| NS | ns-uk.topdns.com ⭐ | ||||||
| A | 43.245.50.34🇺🇸 VR-HOSTED43.245.50.0/24 NetActuate, Inc | ||||||
| PTR | smtp02.topdns.com | ||||||
| NS | ns-canada.topdns.com | ||||||
| A | 185.7.78.112🇳🇱 NFORCE185.7.78.0/24 Route object for 185.7.78.0/24 | ||||||
| PTR | smtp04.topdns.com | ||||||
| NS | ns-usa.topdns.com | ||||||
| A | 143.198.68.197🇺🇸 DIGITALOCEAN143.198.64.0/20 DigitalOcean | ||||||
| A | 161.35.225.48🇺🇸 DIGITALOCEAN161.35.224.0/20 DigitalOcean | ||||||
| SOA | ns-uk.topdns.comhostmaster@topdns.com 2026-03-26 #1 | ||||||
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=1785215677 | ||||||
Same first word
classesonline.com |
classesonline.mobi |
classesonline.org |
Similar names
DNS History
23 records (4 active, 19 former)
●NSns-canada.topdns.com2026-04-21 → 2026-07-28 · 3 obs
○ 2026-02-23 18:16:24
● 2026-04-21 15:57:52
● 2026-07-28 05:41:44
● 2026-04-21 15:57:52
● 2026-07-28 05:41:44
●NSns-uk.topdns.com2026-04-21 → 2026-07-28 · 3 obs
○ 2026-02-23 18:16:24
● 2026-04-21 15:57:52
● 2026-07-28 05:41:44
● 2026-04-21 15:57:52
● 2026-07-28 05:41:44
●NSns-usa.topdns.com2026-04-21 → 2026-07-28 · 3 obs
○ 2026-02-23 18:16:24
● 2026-04-21 15:57:52
● 2026-07-28 05:41:44
● 2026-04-21 15:57:52
● 2026-07-28 05:41:44
○NSns1.above.com2016-11-25 → 2016-11-25 · 4 obs
○ 2016-03-10 09:13:18
● 2016-11-25 12:18:56
○ 2017-05-24 09:37:52
○ 2026-07-28 05:41:44
● 2016-11-25 12:18:56
○ 2017-05-24 09:37:52
○ 2026-07-28 05:41:44
○NSns1.bodis.com2026-02-21 → 2026-02-23 · 5 obs
○ 2017-05-24 09:37:52
● 2026-02-21 23:33:22
● 2026-02-23 18:16:24
○ 2026-04-21 15:57:52
○ 2026-07-28 05:41:44
● 2026-02-21 23:33:22
● 2026-02-23 18:16:24
○ 2026-04-21 15:57:52
○ 2026-07-28 05:41:44
○NSns1.fabulous.com2015-08-11 → 2016-03-10 · 4 obs
● 2015-08-11 03:53:30
● 2016-03-10 09:13:18
○ 2016-11-25 12:18:56
○ 2026-07-28 05:41:44
● 2016-03-10 09:13:18
○ 2016-11-25 12:18:56
○ 2026-07-28 05:41:44
○NSns1.sedoparking.com2017-05-24 → 2017-05-24 · 4 obs
○ 2016-11-25 12:18:56
● 2017-05-24 09:37:52
○ 2026-02-21 23:33:22
○ 2026-07-28 05:41:44
● 2017-05-24 09:37:52
○ 2026-02-21 23:33:22
○ 2026-07-28 05:41:44
○NSns2.above.com2016-11-25 → 2016-11-25 · 4 obs
○ 2016-03-10 09:13:18
● 2016-11-25 12:18:56
○ 2017-05-24 09:37:52
○ 2026-07-28 05:41:44
● 2016-11-25 12:18:56
○ 2017-05-24 09:37:52
○ 2026-07-28 05:41:44
○NSns2.bodis.com2026-02-21 → 2026-02-23 · 5 obs
○ 2017-05-24 09:37:52
● 2026-02-21 23:33:22
● 2026-02-23 18:16:24
○ 2026-04-21 15:57:52
○ 2026-07-28 05:41:44
● 2026-02-21 23:33:22
● 2026-02-23 18:16:24
○ 2026-04-21 15:57:52
○ 2026-07-28 05:41:44
○NSns2.fabulous.com2015-08-11 → 2016-03-10 · 4 obs
● 2015-08-11 03:53:30
● 2016-03-10 09:13:18
○ 2016-11-25 12:18:56
○ 2026-07-28 05:41:44
● 2016-03-10 09:13:18
○ 2016-11-25 12:18:56
○ 2026-07-28 05:41:44
○NSns2.sedoparking.com2017-05-24 → 2017-05-24 · 4 obs
○ 2016-11-25 12:18:56
● 2017-05-24 09:37:52
○ 2026-02-21 23:33:22
○ 2026-07-28 05:41:44
● 2017-05-24 09:37:52
○ 2026-02-21 23:33:22
○ 2026-07-28 05:41:44
○MXlocalhost2017-05-24 → 2017-05-24 · 4 obs
○ 2016-11-25 12:18:56
● 2017-05-24 09:37:52
○ 2026-02-21 23:33:22
○ 2026-07-28 05:41:44
● 2017-05-24 09:37:52
○ 2026-02-21 23:33:22
○ 2026-07-28 05:41:44
○MXmail.b-io.co2015-08-11 → 2016-03-10 · 4 obs
● 2015-08-11 03:53:30
● 2016-03-10 09:13:18
○ 2016-11-25 12:18:56
○ 2026-07-28 05:41:44
● 2016-03-10 09:13:18
○ 2016-11-25 12:18:56
○ 2026-07-28 05:41:44
○A103.224.182.2122016-11-25 → 2016-11-25 · 4 obs
○ 2016-03-10 09:13:18
● 2016-11-25 12:18:56
○ 2017-05-24 09:37:52
○ 2026-07-28 05:41:44
● 2016-11-25 12:18:56
○ 2017-05-24 09:37:52
○ 2026-07-28 05:41:44
●A143.198.68.1972026-04-21 → 2026-07-28 · 3 obs
○ 2026-02-21 23:33:22
● 2026-04-21 15:57:52
● 2026-07-28 05:41:44
● 2026-04-21 15:57:52
● 2026-07-28 05:41:44
○A199.59.243.2282026-02-21 → 2026-07-28 · 2 obs
○ 2026-02-21 23:33:22
○ 2026-07-28 05:41:44
○ 2026-07-28 05:41:44
○A208.48.81.1332015-08-11 → 2015-12-07 · 4 obs
● 2015-08-11 03:53:30
● 2015-12-07 05:28:16
○ 2016-03-10 09:13:18
○ 2026-07-28 05:41:44
● 2015-12-07 05:28:16
○ 2016-03-10 09:13:18
○ 2026-07-28 05:41:44
○A208.48.81.1342015-08-11 → 2015-12-07 · 4 obs
● 2015-08-11 03:53:30
● 2015-12-07 05:28:16
○ 2016-03-10 09:13:18
○ 2026-07-28 05:41:44
● 2015-12-07 05:28:16
○ 2016-03-10 09:13:18
○ 2026-07-28 05:41:44
○A208.48.81.1792015-08-11 → 2015-12-07 · 4 obs
● 2015-08-11 03:53:30
● 2015-12-07 05:28:16
○ 2016-03-10 09:13:18
○ 2026-07-28 05:41:44
● 2015-12-07 05:28:16
○ 2016-03-10 09:13:18
○ 2026-07-28 05:41:44
○A64.15.205.1002015-08-11 → 2015-12-07 · 4 obs
● 2015-08-11 03:53:30
● 2015-12-07 05:28:16
○ 2016-03-10 09:13:18
○ 2026-07-28 05:41:44
● 2015-12-07 05:28:16
○ 2016-03-10 09:13:18
○ 2026-07-28 05:41:44
○A64.15.205.1012015-08-11 → 2015-12-07 · 4 obs
● 2015-08-11 03:53:30
● 2015-12-07 05:28:16
○ 2016-03-10 09:13:18
○ 2026-07-28 05:41:44
● 2015-12-07 05:28:16
○ 2016-03-10 09:13:18
○ 2026-07-28 05:41:44
○A72.52.4.1222017-05-24 → 2017-05-24 · 4 obs
○ 2016-11-25 12:18:56
● 2017-05-24 09:37:52
○ 2026-02-21 23:33:22
○ 2026-07-28 05:41:44
● 2017-05-24 09:37:52
○ 2026-02-21 23:33:22
○ 2026-07-28 05:41:44
○A98.124.245.242016-03-10 → 2016-03-10 · 4 obs
○ 2015-12-07 05:28:16
● 2016-03-10 09:13:18
○ 2016-11-25 12:18:56
○ 2026-07-28 05:41:44
● 2016-03-10 09:13:18
○ 2016-11-25 12:18:56
○ 2026-07-28 05:41:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| classesonline.com | ns-canada.topdns.com, ns-usa.topdns.com, ns-uk.topdns.com | 4 records |
✅ Authoritative Response
Server:43.245.50.34
NS records: ns-canada.topdns.com, ns-usa.topdns.com, ns-uk.topdns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for classesonline.com (unsigned zone)
⏱️ Timing
Total: 897ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 143.198.68.197 |
| NS | 3 | ns-uk.topdns.com, ns-canada.topdns.com... |
| SOA | 1 | ns-uk.topdns.com hostmaster.topdns.com |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns-canada.topdns.com, ns-usa.topdns.com, ns-usa.topdns.com...)
Analysis
IP Addresses
classesonline.com directs to one IP number, which is 143.198.68.197.
Among the host names that share IP numbers with classesonline.com are orthokeratology.net, giantsize.co.uk, recotex.com and two others.
Name Servers
The authoritative name servers for classesonline.com are ns-canada.topdns.com, ns-uk.topdns.com and ns-usa.topdns.com — three in total.
classesonline.com partially shares its NS delegation with several other domains, including livinglifehowto.com, beinternet.it, obmenvsem.me and two others.
Hosts with two IP numbers each:
ns-usa.topdns.com directs traffic to 143.198.68.197 and 161.35.225.48.
Hosts that resolve to one IP address:
ns-canada.topdns.com has the IP address 185.7.78.112.
ns-uk.topdns.com has the IP address 43.245.50.34.