openclass.com - dns.ninja
openclass.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 159.182.4.94🇺🇸 ENETWORKS128.0.0.0/2 | ||||||
| A | 159.182.72.142🇺🇸 PEARSON-EMEA159.182.72.0/21 NCS Pearson Inc. | ||||||
| NS | ns-615.awsdns-12.net ⭐ | ||||||
| A | 2600:9000:5302:6700::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-615.awsdns-12.net | ||||||
| A | 205.251.194.103🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-615.awsdns-12.net | ||||||
| NS | ns-1197.awsdns-21.org | ||||||
| A | 2600:9000:5304:ad00::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront | ||||||
| PTR | ns-1197.awsdns-21.org | ||||||
| A | 205.251.196.173🇺🇸 Amazon205.251.196.0/24 prefix | ||||||
| PTR | ns-1197.awsdns-21.org | ||||||
| NS | ns-1845.awsdns-38.co.uk | ||||||
| A | 2600:9000:5307:3500::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront | ||||||
| PTR | ns-1845.awsdns-38.co.uk | ||||||
| A | 205.251.199.53🇺🇸 Amazon205.251.199.0/24 prefix | ||||||
| PTR | ns-1845.awsdns-38.co.uk | ||||||
| NS | ns-457.awsdns-57.com | ||||||
| A | 2600:9000:5301:c900::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront | ||||||
| PTR | ns-457.awsdns-57.com | ||||||
| A | 205.251.193.201🇺🇸 Amazon205.251.193.0/24 prefix | ||||||
| PTR | ns-457.awsdns-57.com | ||||||
| SOA | ns-615.awsdns-12.netawsdns-hostmaster@amazon.com serial=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=1781159713 | ||||||
Subdomains
pxe-sdk.openclass.com |
eps.openclass.com |
paperapi.openclass.com |
www.openclass.com |
product-transaction.openclass.com |
content.openclass.com |
brix-ips.openclass.com |
piapi-internal-standby.openclass.com |
ies.openclass.com |
piapi.openclass.com |
spectrum.openclass.com |
Same first word
Similar names
specloans.com |
clonepass.xyz |
snapclose.com |
classopen.org |
solnspace.com |
csespanol.com |
classopen.com |
slopescan.com |
espnsocal.com |
DNS History
7 records (6 active, 1 former)
●NSns-1197.awsdns-21.org2015-06-26 → 2026-06-11 · 2 obs
● 2026-06-11 06:38:36
●NSns-1845.awsdns-38.co.uk2015-06-26 → 2026-06-11 · 2 obs
● 2026-06-11 06:38:36
●NSns-457.awsdns-57.com2015-06-26 → 2026-06-11 · 2 obs
● 2026-06-11 06:38:36
●NSns-615.awsdns-12.net2015-06-26 → 2026-06-11 · 2 obs
● 2026-06-11 06:38:36
○A159.182.16.1172015-06-26 → 2017-02-12 · 4 obs
● 2017-02-12 15:06:26
○ 2026-02-14 21:32:34
○ 2026-06-11 06:38:36
●A159.182.4.942026-02-14 → 2026-06-11 · 3 obs
● 2026-02-14 21:32:34
● 2026-06-11 06:38:36
●A159.182.72.1422026-02-14 → 2026-06-11 · 3 obs
● 2026-02-14 21:32:34
● 2026-06-11 06:38:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| openclass.com | ns-615.awsdns-12.net, ns-457.awsdns-57.com, ns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk | 2 records |
✅ Authoritative Response
Server:205.251.199.53
NS records: ns-615.awsdns-12.net, ns-457.awsdns-57.com, ns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for openclass.com (unsigned zone)
⏱️ Timing
Total: 683ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 159.182.4.94, 159.182.72.142 |
| NS | 4 | ns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk... |
| SOA | 1 | ns-615.awsdns-12.net awsdns-hostmaster.a |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-457.awsdns-57.com, ns-457.awsdns-57.com)
Analysis
Hierarchy
openclass.com is the parent domain of pxe-sdk.openclass.com, eps.openclass.com, paperapi.openclass.com, www.openclass.com, product-transaction.openclass.com and a few other host names.
IP Addresses
openclass.com points to two IP numbers: 159.182.4.94 and 159.182.72.142.
Name Servers
openclass.com is delegated to four name servers, ns-457.awsdns-57.com, ns-615.awsdns-12.net, ns-1197.awsdns-21.org and ns-1845.awsdns-38.co.uk.
openclass.com shares at least some of its name servers with other domains, including lifaa.co.jp, the5thingredient.com, lincolnshirejournal.com and two others.
The host names ns-457.awsdns-57.com, ns-615.awsdns-12.net, ns-1197.awsdns-21.org and ns-1845.awsdns-38.co.uk each resolve to two IP addresses: ns-457.awsdns-57.com resolves to 205.251.193.201 and 2600:9000:5301:c900::1; ns-615.awsdns-12.net resolves to 205.251.194.103 and 2600:9000:5302:6700::1; ns-1197.awsdns-21.org resolves to 205.251.196.173 and 2600:9000:5304:ad00::1; ns-1845.awsdns-38.co.uk resolves to 205.251.199.53 and 2600:9000:5307:3500::1.