librarians.net - robtex.com
librarians.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.92.181.238🇺🇸 AS7859216.92.0.0/16 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203 | ||||||
| PTR | librarians.net | ||||||
| NS | ns515.pair.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 209.68.5.111🇺🇸 AS7859209.68.0.0/18 | ||||||
| PTR | engur.pair.com | ||||||
| NS | ns505.pair.com ⚠️ Not in zone NS records | ||||||
| A | 209.68.5.111🇺🇸 AS7859209.68.0.0/18 | ||||||
| PTR | engur.pair.com | ||||||
| NS | ns6.ns0.com | ||||||
| MX | qs4869.pair.com ⭐ | ||||||
| A | 2607:f440::4227:4412🇺🇸 AS78592607:f440::/32 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203 | ||||||
| PTR | qs4869.pair.com | ||||||
| A | 66.39.68.18🇺🇸 AS785966.39.0.0/17 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203 | ||||||
| PTR | qs4869.pair.com | ||||||
| SOA | ns515.pair.comroot@pair.com 2025-10-17 #19 | ||||||
net
| 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=1774391802 | ||||||
PTR for
Same first word
Similar names
DNS History
10 records (5 active, 5 former)
○NSns.buydomains.com2007-09-19 → 2007-09-19 · 3 obs
○ 2015-06-28 03:46:38
○ 2026-03-24 22:57:44
●NSns505.pair.com2026-03-12 → 2026-03-24 · 3 obs
● 2026-03-12 11:50:00
● 2026-03-24 22:57:44
●NSns515.pair.com2015-06-28 → 2026-03-24 · 3 obs
● 2015-06-28 03:46:38
● 2026-03-24 22:57:44
●NSns6.ns0.com2015-06-28 → 2026-03-24 · 3 obs
● 2015-06-28 03:46:38
● 2026-03-24 22:57:44
○NSthis-domain-for-sale.com2007-09-19 → 2007-09-19 · 3 obs
○ 2015-06-28 03:46:38
○ 2026-03-24 22:57:44
○MXdev.null2007-09-19 → 2007-09-19 · 3 obs
○ 2015-06-28 03:46:38
○ 2026-03-24 22:57:44
○MXqs3419.pair.com2015-06-28 → 2018-06-18 · 5 obs
● 2015-06-28 03:46:38
● 2018-06-18 14:04:58
○ 2026-03-12 11:50:00
○ 2026-03-24 22:57:44
●MXqs4869.pair.com2026-03-12 → 2026-03-24 · 3 obs
● 2026-03-12 11:50:00
● 2026-03-24 22:57:44
○A208.254.3.1662007-09-19 → 2007-09-19 · 3 obs
○ 2015-06-28 03:46:38
○ 2026-03-24 22:57:44
●A216.92.181.2382015-06-28 → 2026-03-24 · 3 obs
● 2015-06-28 03:46:38
● 2026-03-24 22:57:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | f.gtld-servers.net, h.gtld-servers.net, c.gtld-servers.net, a.gtld-servers.net... | - |
| librarians.net | ns6.ns0.com, ns505.pair.com | - |
✅ Authoritative Response
Server:216.92.61.171
NS records: ns6.ns0.com, ns505.pair.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for librarians.net (unsigned zone)
⏱️ Timing
Total: 356ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.92.181.238 |
| NS | 2 | ns515.pair.com, ns6.ns0.com |
| MX | 1 | qs4869.pair.com (pri: 50) |
| SOA | 1 | ns515.pair.com root.pair.com |
Analysis
IP Addresses
librarians.net points to a single IP number: 216.92.181.238.
Name Servers
librarians.net is delegated to three name servers: ns6.ns0.com, ns505.pair.com and ns515.pair.com.
librarians.net at least partially shares name servers with other domains, for instance paving-stones.com, givernyguesthouse.com, pastoralfurniture.com, quintium.org and naranjaranchestates.com.
These name servers are often used together with the name servers ns5.ns0.com, ns498.pair.com, dns4.pair.com, ns460.pair.com, ns514.pair.com, ns8.ns0.com, ns245.pair.com, ns549.pair.com, ns2.quickserve.com and ns444.pair.com.
Host names with a single IP number:
ns505.pair.com points to 209.68.5.111 and ns515.pair.com points to 209.68.5.111.
Host names that point to 209.68.5.111: ns505.pair.com and ns515.pair.com.
Mail Servers
librarians.net is handled by a single mail server, qs4869.pair.com.
librarians.net shares the same mail server setup as other domains, for instance mortgagerates.info, smarter.org, culinaryschools.org, spain.net and replicahandbags.org.
Host qs4869.pair.com resolves to two IPs: 2607:f440::4227:4412 and 66.39.68.18.