concreteproblemsolvers.com - robtex.com
concreteproblemsolvers.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 74.91.138.130🇺🇸 ORACLE-OCI-3189874.91.138.0/23 Oracle Corporation | ||||||
| NS | ns79.worldnic.com ⭐ | ||||||
| A | 162.159.26.27Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns80.worldnic.com | ||||||
| A | 162.159.27.78Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | NS79.WORLDNIC.comnamehost@WORLDNIC.com serial=126051416 | ||||||
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=1786107274 | ||||||
Subdomains
Same first word
concreteproblemsolvers.com |
DNS History
13 records (3 active, 10 former)
○NSdns1.registeredsite.com2015-08-23 → 2026-05-12 · 5 obs
● 2015-08-23 13:44:56
● 2026-05-12 09:31:44
○ 2026-05-17 21:38:18
○ 2026-08-07 12:57:52
○NSdns2.registeredsite.com2015-08-23 → 2026-05-12 · 5 obs
● 2015-08-23 13:44:56
● 2026-05-12 09:31:44
○ 2026-05-17 21:38:18
○ 2026-08-07 12:57:52
○NSdns3.registeredsite.com2015-08-23 → 2026-05-12 · 5 obs
● 2015-08-23 13:44:56
● 2026-05-12 09:31:44
○ 2026-05-17 21:38:18
○ 2026-08-07 12:57:52
○NSns1.innuitydns.com2008-03-12 → 2008-03-12 · 3 obs
○ 2015-08-23 13:44:56
○ 2026-08-07 12:57:52
○NSns2.innuitydns.com2008-03-12 → 2008-03-12 · 3 obs
○ 2015-08-23 13:44:56
○ 2026-08-07 12:57:52
●NSns79.worldnic.com2026-05-17 → 2026-08-07 · 3 obs
● 2026-05-17 21:38:18
● 2026-08-07 12:57:52
●NSns80.worldnic.com2026-05-17 → 2026-08-07 · 3 obs
● 2026-05-17 21:38:18
● 2026-08-07 12:57:52
○MXmail.concreteproblemsolvers.com2008-03-12 → 2008-03-12 · 3 obs
○ 2015-08-23 13:44:56
○ 2026-08-07 12:57:52
○MXmx.concreteproblemsolvers.com2015-08-23 → 2026-05-12 · 5 obs
● 2015-08-23 13:44:56
● 2026-05-12 09:31:44
○ 2026-05-17 21:38:18
○ 2026-08-07 12:57:52
○A209.17.116.1602017-03-29 → 2026-05-12 · 5 obs
● 2017-03-29 17:05:02
● 2026-05-12 09:31:44
○ 2026-05-17 21:38:18
○ 2026-08-07 12:57:52
○A216.57.205.2102008-03-12 → 2008-03-12 · 3 obs
○ 2015-08-23 13:44:56
○ 2026-08-07 12:57:52
○A64.69.213.2322015-08-23 → 2016-07-16 · 5 obs
● 2015-08-23 13:44:56
● 2016-07-16 12:10:18
○ 2017-03-29 17:05:02
○ 2026-08-07 12:57:52
●A74.91.138.1302026-05-17 → 2026-08-07 · 3 obs
● 2026-05-17 21:38:18
● 2026-08-07 12:57:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, d.gtld-servers.net, c.gtld-servers.net... | - |
| concreteproblemsolvers.com | ns79.worldnic.com, ns80.worldnic.com | 2 records |
✅ Authoritative Response
Server:162.159.26.27
NS records: ns79.worldnic.com, ns80.worldnic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for concreteproblemsolvers.com (unsigned zone)
⏱️ Timing
Total: 212ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 74.91.138.130 |
| NS | 2 | ns79.worldnic.com, ns80.worldnic.com |
| SOA | 1 | NS79.WORLDNIC.com namehost.WORLDNIC.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns79.worldnic.com, ns80.worldnic.com)
Analysis
Hierarchy
concreteproblemsolvers.com is the parent domain of mx.concreteproblemsolvers.com and mail.concreteproblemsolvers.com.
IP Addresses
concreteproblemsolvers.com points to a single IP number: 74.91.138.130.
Additional host names — cnypr.org, drolmstead.com, bornwithwings.net and two others — share IP numbers with concreteproblemsolvers.com.
Name Servers
concreteproblemsolvers.com is served by two delegated name servers, ns79.worldnic.com and ns80.worldnic.com.
concreteproblemsolvers.com shares its name server setup with other domains, including mlm-martin.com, ltuzone.com, premierts.com and two others.
The DNS delegation for concreteproblemsolvers.com at least partly coincides with that of other domains, berkleyllc.com being one example.
ns79.worldnic.com → 162.159.26.27 and ns80.worldnic.com → 162.159.27.78: one IP number per host name.