nationalsleepstudy.org - robtex.com
nationalsleepstudy.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2620:68:0:215::3:238🇺🇸 AS299062620:68::/48 Attn: Network Technical Systems 1650 Research Blvd. Rockville MD 20850 United States | ||||||
| A | 198.232.249.238🇺🇸 AS29906198.232.249.0/24 Proxy registration to prevent harm from ARIN-NONAUTH shutdown | ||||||
| NS | ns1.westat.com ⭐ | ||||||
| NS | ns2.westat.com | ||||||
| A | 198.232.251.42🇺🇸 AS29906198.232.251.0/24 Proxy registration to prevent harm from ARIN-NONAUTH shutdown | ||||||
| PTR | ns2.westat.com | ||||||
| NS | ns4.westat.com | ||||||
| NS | ns61.westat.com | ||||||
| A | 2620:68:0:137::41🇺🇸 AS299062620:68::/48 Attn: Network Technical Systems 1650 Research Blvd. Rockville MD 20850 United States | ||||||
| NS | ns62.westat.com | ||||||
| A | 2620:68:0:137::42🇺🇸 AS299062620:68::/48 Attn: Network Technical Systems 1650 Research Blvd. Rockville MD 20850 United States | ||||||
| NS | ns64.westat.com | ||||||
| A | 2600:1f14:4f8:600:54:213:198:197🇺🇸 Amazon2600:1f14::/37 AMAZON AWS | ||||||
| TXT | _9d6se9bqqrrzan80rocyf1q0fxnxn2m | ||||||
| SOA | ns1.westat.comhostmaster@westat.com 2025-05-23 #1 | ||||||
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=1777184046 | ||||||
Subdomains
www.nationalsleepstudy.org |
Same first word
nationalsleepstudy.org |
DNS History
8 records (8 active, 0 former)
●NSns1.westat.com2026-03-18 → 2026-04-26 · 2 obs
● 2026-04-26 06:51:30
●NSns2.westat.com2026-03-18 → 2026-04-26 · 2 obs
● 2026-04-26 06:51:30
●NSns4.westat.com2026-03-18 → 2026-04-26 · 2 obs
● 2026-04-26 06:51:30
●NSns61.westat.com2026-03-18 → 2026-04-26 · 2 obs
● 2026-04-26 06:51:30
●NSns62.westat.com2026-03-18 → 2026-04-26 · 2 obs
● 2026-04-26 06:51:30
●NSns64.westat.com2026-03-18 → 2026-04-26 · 2 obs
● 2026-04-26 06:51:30
●A198.232.249.2382026-03-18 → 2026-04-26 · 3 obs
○ 2026-03-23 09:04:54
● 2026-04-26 06:51:30
●A2620:68:0:215::3:2382026-03-18 → 2026-04-26 · 3 obs
○ 2026-03-23 09:04:54
● 2026-04-26 06:51:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, d0.org.afilias-nst.org, b2.org.afilias-nst.org | - |
| nationalsleepstudy.org | ns1.westat.com, ns2.westat.com, ns4.westat.com, ns61.westat.com... | - |
✅ Authoritative Response
Server:198.232.251.42
NS records: ns1.westat.com, ns2.westat.com, ns4.westat.com, ns61.westat.com, ns62.westat.com, ns64.westat.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for nationalsleepstudy.org (unsigned zone)
⏱️ Timing
Total: 2385ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 198.232.249.238 |
| AAAA | 1 | 2620:68:0:215::3:238 |
| NS | 6 | ns1.westat.com, ns62.westat.com... |
| TXT | 1 | _9d6se9bqqrrzan80rocyf1q0fxnxn2m |
| SOA | 1 | ns1.westat.com hostmaster.westat.com |
Analysis
Hierarchy
www.nationalsleepstudy.org has nationalsleepstudy.org as its parent.
IP Addresses
nationalsleepstudy.org points to two IPs: 2620:68:0:215::3:238 and 198.232.249.238.
Other host names, for example, www.nationalsleepstudy.org share IP numbers with nationalsleepstudy.org.
Name Servers
nationalsleepstudy.org delegates to six name servers: ns1.westat.com, ns2.westat.com, ns4.westat.com, ns61.westat.com, ns62.westat.com and ns64.westat.com.
nationalsleepstudy.org at least partially shares name servers with other domains such as westat-transportation.com, pptavmdata.org, fenestra.com, compcenternetwork.org and aoasurvey.org.
these name servers are commonly used with the name servers ns3.westat.com.
Host names with one IP number:
ns2.westat.com points to: 198.232.251.42
ns61.westat.com points to: 2620:68:0:137::41
ns62.westat.com points to: 2620:68:0:137::42
ns64.westat.com points to: 2600:1f14:4f8:600:54:213:198:197