certrex.com - dns.ninja
certrex.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 207.148.248.143🇺🇸 EIG-29873207.148.248.0/24 | ||||||
| NS | ns.buydomains.com ⚠️ Not in zone NS records | ||||||
| A | 52.20.26.87🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix | ||||||
| PTR | ec2-52-20-26-87.compute-1.amazonaws.com | ||||||
| NS | this-domain-for-sale.com ⚠️ Not in zone NS records | ||||||
| A | 52.20.26.87🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix | ||||||
| PTR | ec2-52-20-26-87.compute-1.amazonaws.com | ||||||
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=1782674170 | ||||||
Same first word
DNS History
8 records (3 active, 5 former)
○NSbuy.internettraffic.com2015-07-18 → 2015-07-18 · 3 obs
○ 2015-11-30 23:20:44
○ 2026-06-28 19:33:16
●NSns.buydomains.com2015-11-30 → 2026-06-28 · 3 obs
● 2015-11-30 23:20:44
● 2026-06-28 19:33:16
○NSsell.internettraffic.com2015-07-18 → 2015-07-18 · 3 obs
○ 2015-11-30 23:20:44
○ 2026-06-28 19:33:16
●NSthis-domain-for-sale.com2026-03-26 → 2026-06-28 · 3 obs
● 2026-03-26 08:24:36
● 2026-06-28 19:33:16
○MXmail.b-io.co2015-07-18 → 2015-07-18 · 3 obs
○ 2015-11-30 23:20:44
○ 2026-06-28 19:33:16
○A141.8.225.1242015-11-30 → 2016-05-10 · 5 obs
● 2015-11-30 23:20:44
● 2016-05-10 02:45:02
○ 2017-03-21 05:12:22
○ 2026-06-28 19:33:16
●A207.148.248.1432017-03-21 → 2026-06-28 · 3 obs
● 2017-03-21 05:12:22
● 2026-06-28 19:33:16
○A69.172.201.2082015-07-18 → 2015-07-18 · 3 obs
○ 2015-11-30 23:20:44
○ 2026-06-28 19:33:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| certrex.com | ns.buydomains.com, this-domain-for-sale.com | 2 records |
✅ Authoritative Response
Server:52.4.207.204
NS records: ns.buydomains.com, this-domain-for-sale.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for certrex.com (unsigned zone)
⏱️ Timing
Total: 96ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 207.148.248.143 |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns.buydomains.com, this-domain-for-sale.com)
Analysis
IP Addresses
certrex.com resolves to just one IP address, 207.148.248.143.
Two other host names, along with mail.productionimprovement.com, biosconsult.com and ksis.org, also share IP numbers with certrex.com.
Name Servers
certrex.com is served by two delegated name servers, this-domain-for-sale.com and ns.buydomains.com.
certrex.com shares its NS records with other domains, for example autocellular.com, amazingsparkle.com, programplace.com and two others.
The DNS delegation for certrex.com at least partly coincides with that of other domains, gaspumpclassics.com being one example.
this-domain-for-sale.com and ns.buydomains.com share one IP address between them — 52.20.26.87.
These two host names — this-domain-for-sale.com and ns.buydomains.com — each point to 52.20.26.87 IP addresses.