classnotes.org - dns.ninja
classnotes.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 54.198.7.157🇺🇸 Amazon54.198.0.0/16 EC2 IAD prefix | ||||||
| PTR | ec2-54-198-7-157.compute-1.amazonaws.com | ||||||
| NS | ns1.mpr.org ⭐ | ||||||
| A | 52.52.76.76🇺🇸 Amazon52.52.0.0/15 EC2 SFO prefix | ||||||
| PTR | ns1.mpr.org | ||||||
| NS | ns2.mpr.org | ||||||
| A | 52.203.35.117🇺🇸 Amazon52.200.0.0/13 EC2 IAD prefix | ||||||
| PTR | ns2.mpr.org | ||||||
| TXT | v=spf1 mx a:mailhost.mpr.org a:extmail.mpr.org -all | ||||||
| TXT | google-site-verification=qJ2WqslukNb_wBndy4OFoOpKZ4l9MjR0VsvflHXK2Gs | ||||||
| SOA | ns1.mpr.orgunixadmin@mpr.org 2026-04-02 #0 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1791776243 | ||||||
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DNS History
7 records (3 active, 4 former)
○NSns.buydomains.com2015-05-12 → 2017-06-30 · 4 obs
● 2017-06-30 02:30:14
○ 2026-09-10 01:33:10
○ 2026-10-12 03:58:40
●NSns1.mpr.org2026-09-10 → 2026-10-12 · 3 obs
● 2026-09-10 01:33:10
● 2026-10-12 03:58:40
●NSns2.mpr.org2026-09-10 → 2026-10-12 · 3 obs
● 2026-09-10 01:33:10
● 2026-10-12 03:58:40
○A141.8.225.1242015-12-25 → 2016-11-25 · 5 obs
● 2015-12-25 17:52:48
● 2016-11-25 02:20:40
○ 2017-06-30 02:30:14
○ 2026-10-12 03:58:40
○A209.99.64.432017-06-30 → 2017-06-30 · 4 obs
● 2017-06-30 02:30:14
○ 2026-09-10 01:33:10
○ 2026-10-12 03:58:40
○A50.63.202.1042015-05-12 → 2015-10-22 · 4 obs
● 2015-10-22 07:13:06
○ 2015-12-25 17:52:48
○ 2026-10-12 03:58:40
●A54.198.7.1572026-09-10 → 2026-10-12 · 3 obs
● 2026-09-10 01:33:10
● 2026-10-12 03:58:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| classnotes.org | ns2.mpr.org, ns1.mpr.org | 2 records |
✅ Authoritative Response
Server:52.52.76.76
NS records: ns2.mpr.org, ns1.mpr.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for classnotes.org (unsigned zone)
⏱️ Timing
Total: 625ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 54.198.7.157 |
| NS | 2 | ns2.mpr.org, ns1.mpr.org |
| TXT | 2 | v=spf1 mx a:mailhost.mpr.org a:extmail.m, google-site-verification=qJ2WqslukNb_wBn |
| SOA | 1 | ns1.mpr.org unixadmin.mpr.org |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.mpr.org, ns1.mpr.org)
Analysis
IP Addresses
classnotes.org has exactly one IP address — 54.198.7.157.
classicalmpr.org, mprnewsq.com, pipedreams.org plus two other host names have IP numbers in common with classnotes.org.
Name Servers
classnotes.org is served by two delegated name servers, ns1.mpr.org and ns2.mpr.org.
The name server configuration of classnotes.org is shared with other domains, for instance wpbinews.org, soundmoney.org, americanradioworks.org and two others.
At least some of classnotes.org's name servers are shared with other domains, for example extwww7.publicradio.org, extwww2.publicradio.org, extwww1.publicradio.org and two more.
These name servers tend to be deployed in combination with the name servers gw2.publicradio.org and gw.publicradio.org.
Each of ns1.mpr.org and ns2.mpr.org has one IP address: ns1.mpr.org uses 52.52.76.76 and ns2.mpr.org uses 52.203.35.117.