content.openclass.com - dns.ninja

content.openclass.com

CNAMEsancert1-co-lt.pearson.com.edgekey.net
CNAMEe13730.dscx.akamaiedge.net
DNSSEC⚠️ Not signed
A2600:1408:a:181::35a2🇺🇸 AKAMAI-ASN12600:1408:a::/48 Akamai Technologies
PTRg2600-1408-000a-0181-0000-0000-0000-35a2.deploy.static.akamaitechnologies.com
A2600:1408:a:198::35a2🇺🇸 AKAMAI-ASN12600:1408:a::/48 Akamai Technologies
A104.71.188.164🇺🇸 Akamai104.71.176.0/20 Technologies

openclass.com

DNSSEC⚠️ Not signed
A159.182.4.94🇺🇸 ENETWORKS128.0.0.0/2
A159.182.72.142🇺🇸 PEARSON-EMEA159.182.72.0/21 NCS Pearson Inc.
NSns-615.awsdns-12.net ⭐
NSns-1197.awsdns-21.org
NSns-1845.awsdns-38.co.uk
NSns-457.awsdns-57.com
SOAns-615.awsdns-12.netawsdns-hostmaster@amazon.com serial=1
📈 Tranco rank: #456,721

Same first word

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content.fi
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DNS History

4 records (1 active, 3 former)

201820192020202120222023202420252026A104.82.172.147CNAMEsancert1-co-lt.pearson.com.edgekey.nete7316.x.akamaiedge.netsancert2-co-lt.pearson.com.edgekey.net
○A104.82.172.1472017-01-05 → 2017-01-05 · 3 obs
● 2017-01-05 09:18:14
○ 2026-03-25 22:05:46
○ 2026-06-12 01:54:28
○CNAMEe7316.x.akamaiedge.net2017-01-05 → 2017-01-05 · 3 obs
● 2017-01-05 09:18:14
○ 2026-03-25 22:05:46
○ 2026-06-12 01:54:28
●CNAMEsancert1-co-lt.pearson.com.edgekey.net2026-03-25 → 2026-06-12 · 3 obs
○ 2017-01-05 09:18:14
● 2026-03-25 22:05:46
● 2026-06-12 01:54:28
○CNAMEsancert2-co-lt.pearson.com.edgekey.net2017-01-05 → 2017-01-05 · 3 obs
● 2017-01-05 09:18:14
○ 2026-03-25 22:05:46
○ 2026-06-12 01:54:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
come.gtld-servers.net, l.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net...-
openclass.comns-615.awsdns-12.net, ns-457.awsdns-57.com, ns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk2 records
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-
openclass.comns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net-

✅ Authoritative Response

Server:205.251.194.103

NS records: ns-1197.awsdns-21.org, ns-1845.awsdns-38.co.uk, ns-457.awsdns-57.com, ns-615.awsdns-12.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for openclass.com (unsigned zone)

⏱️ Timing

Total: 857ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1sancert1-co-lt.pearson.com.edgekey.net

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-457.awsdns-57.com, ns-457.awsdns-57.com)

Analysis

IP Addresses

The hostname content.openclass.com resolves to three IP addresses: 104.71.188.164, 2600:1408:a:181::35a2 and 2600:1408:a:198::35a2.

a104-71-188-164.deploy.static.akamaitechnologies.com is an example of another host name that shares IP numbers with content.openclass.com.