concentra.org - robtex.com
concentra.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns1.afternic.com ⭐ | ||||||
| A | 2603:5:2126::45🇺🇸 GODADDY-DNS2603:5:2120::/44 | ||||||
| PTR | ns1.afternic.com | ||||||
| A | 97.74.98.69🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns1.afternic.com | ||||||
| NS | ns2.afternic.com | ||||||
| A | 2603:5:2226::45🇺🇸 GODADDY-DNS2603:5:2220::/44 | ||||||
| PTR | ns2.afternic.com | ||||||
| A | 173.201.66.69🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns2.afternic.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1.afternic.comdns@jomax.net serial=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=1784003595 | ||||||
Subdomains
at.concentra.org |
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
●NSns1.afternic.com2026-05-27 → 2026-07-14 · 3 obs
● 2026-05-27 14:07:00
● 2026-07-14 04:43:38
○NSns1.netfarm.at2015-06-17 → 2017-01-27 · 4 obs
● 2017-01-27 01:48:40
○ 2026-05-27 14:07:00
○ 2026-07-14 04:43:38
●NSns2.afternic.com2026-05-27 → 2026-07-14 · 3 obs
● 2026-05-27 14:07:00
● 2026-07-14 04:43:38
○NSns2.netfarm.at2015-06-17 → 2017-01-27 · 4 obs
● 2017-01-27 01:48:40
○ 2026-05-27 14:07:00
○ 2026-07-14 04:43:38
○NSns3.netfarm.at2015-06-17 → 2017-01-27 · 4 obs
● 2017-01-27 01:48:40
○ 2026-05-27 14:07:00
○ 2026-07-14 04:43:38
○MXmail.concentra.org2015-06-17 → 2017-01-27 · 4 obs
● 2017-01-27 01:48:40
○ 2026-05-27 14:07:00
○ 2026-07-14 04:43:38
●A13.248.169.482026-05-27 → 2026-07-14 · 3 obs
● 2026-05-27 14:07:00
● 2026-07-14 04:43:38
●A76.223.54.1462026-05-27 → 2026-07-14 · 3 obs
● 2026-05-27 14:07:00
● 2026-07-14 04:43:38
○A85.125.193.1602015-06-17 → 2017-01-27 · 4 obs
● 2017-01-27 01:48:40
○ 2026-05-27 14:07:00
○ 2026-07-14 04:43:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| concentra.org | ns1.afternic.com, ns2.afternic.com | - |
✅ Authoritative Response
Server:173.201.66.69
NS records: ns1.afternic.com, ns2.afternic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for concentra.org (unsigned zone)
⏱️ Timing
Total: 1775ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 76.223.54.146, 13.248.169.48 |
| NS | 2 | ns1.afternic.com, ns2.afternic.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns2.afternic.com dns.jomax.net |
Analysis
Hierarchy
concentra.org serves as the parent of at.concentra.org.
IP Addresses
concentra.org resolves to the IP addresses 13.248.169.48 and 76.223.54.146
Additional host names — perfectwedding.org, hifistore.com, ns2.profitdesk.com and two others — share IP numbers with concentra.org.
Name Servers
concentra.org is delegated to two name servers: ns1.afternic.com and ns2.afternic.com.
concentra.org shares its name server setup with other domains, including mx.smilevietnam.com, www.multisource.xyz, topfx.net and two others.
concentra.org has at least partial name server overlap with other domains, such as fincadongeronimo.com, amcreative.us, ecojav.com and two others.
These name servers are frequently paired with the name servers verification-d3jclucsp89ganyqbydeny.ns101.verify.hn, verification-ag3xtxqjhqhiyarqdrht2l.ns101.verify.hn, verification-urj2ap2akmgcchkhharttb.ns101.verify.hn and two others.
ns1.afternic.com and ns2.afternic.com each resolve to two IP addresses: ns1.afternic.com points to 97.74.98.69 and 2603:5:2126::45, while ns2.afternic.com points to 173.201.66.69 and 2603:5:2226::45.