readinggroups.com - dns.ninja
readinggroups.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 65.204.48.118🇺🇸 BARNES_And_NOBLE65.204.48.0/24 Prolexic Technologies, Inc. | ||||||
| A | 161.221.74.213🇺🇸 BARNES_And_NOBLE161.221.74.0/24 | ||||||
| NS | pnjmasterns01.barnesandnoble.com ⭐ | ||||||
| NS | mail9th1.barnesandnoble.com | ||||||
| A | 161.221.74.77🇺🇸 BARNES_And_NOBLE161.221.74.0/24 | ||||||
| NS | ns2.barnesandnoble.com | ||||||
| A | 161.221.74.78🇺🇸 BARNES_And_NOBLE161.221.74.0/24 | ||||||
| NS | ns3.barnesandnoble.com | ||||||
| A | 65.204.48.77🇺🇸 BARNES_And_NOBLE65.204.48.0/24 Prolexic Technologies, Inc. | ||||||
| NS | ns4.barnesandnoble.com | ||||||
| A | 65.204.48.80🇺🇸 BARNES_And_NOBLE65.204.48.0/24 Prolexic Technologies, Inc. | ||||||
| SOA | pnjmasterns01.barnesandnoble.comdomainadmin@book.com 2026-05-27 #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=1781491860 | ||||||
Same first word
DNS History
8 records (7 active, 1 former)
●NSmail9th1.barnesandnoble.com2015-06-06 → 2026-06-15 · 2 obs
● 2026-06-15 02:59:08
●NSns2.barnesandnoble.com2015-06-06 → 2026-06-15 · 2 obs
● 2026-06-15 02:59:08
●NSns3.barnesandnoble.com2015-06-06 → 2026-06-15 · 2 obs
● 2026-06-15 02:59:08
●NSns4.barnesandnoble.com2015-06-06 → 2026-06-15 · 2 obs
● 2026-06-15 02:59:08
●NSpnjmasterns01.barnesandnoble.com2015-06-06 → 2026-06-15 · 2 obs
● 2026-06-15 02:59:08
●A161.221.74.2132016-04-08 → 2026-06-15 · 3 obs
● 2016-04-08 19:06:06
● 2026-06-15 02:59:08
○A208.53.33.1182015-06-06 → 2016-01-19 · 4 obs
● 2016-01-19 09:33:44
○ 2016-04-08 19:06:06
○ 2026-06-15 02:59:08
●A65.204.48.1182015-06-06 → 2026-06-15 · 2 obs
● 2026-06-15 02:59:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| readinggroups.com | mail9th1.barnesandnoble.com, ns2.barnesandnoble.com, ns3.barnesandnoble.com, ns4.barnesandnoble.com | 4 records |
✅ Authoritative Response
Server:65.204.48.80
NS records: mail9th1.barnesandnoble.com, ns2.barnesandnoble.com, ns3.barnesandnoble.com, ns4.barnesandnoble.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for readinggroups.com (unsigned zone)
⏱️ Timing
Total: 130ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 65.204.48.118, 161.221.74.213 |
| NS | 4 | ns2.barnesandnoble.com, mail9th1.barnesandnoble.com... |
| SOA | 1 | pnjmasterns01.barnesandnoble.com domaina |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (mail9th1.barnesandnoble.com, ns2.barnesandnoble.com, ns3.barnesandnoble.com...)
Analysis
IP Addresses
readinggroups.com directs to two IP numbers, 65.204.48.118 and 161.221.74.213
Two other host names, along with bdaltonbooksellers.net, fictionbooks.net and barnesandnobl.com, also share IP numbers with readinggroups.com.
Name Servers
readinggroups.com delegates to five name servers: mail9th1.barnesandnoble.com, ns2.barnesandnoble.com, ns3.barnesandnoble.com and two others.
readinggroups.com shares at least some of its name servers with other domains, including waterstonesbarnesandnoble.mx, nookforipad.com, bookobsessed.info and two others.
These name servers are frequently paired with the name servers ns4.barnesandnoble.com and pnjmasterns01.barnesandnoble.com.
The hosts mail9th1.barnesandnoble.com, ns2.barnesandnoble.com, ns3.barnesandnoble.com and ns4.barnesandnoble.com all resolve to exactly one IP address each: 161.221.74.77, 161.221.74.78, 65.204.48.77 and 65.204.48.80 respectively.