workingknowledgeps.com - dns.ninja
workingknowledgeps.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 3.131.150.69🇺🇸 Amazon3.131.0.0/16 EC2 CMH prefix | ||||||
| PTR | ec2-3-131-150-69.us-east-2.compute.amazonaws.com | ||||||
| NS | ns1.dnsimple.com ⭐ | ||||||
| A | 2620:111:8004::53🇺🇸 AS327712620:111:8004::/48 DNSimple Corporation | ||||||
| A | 199.247.152.53🇺🇸 AS32771199.247.152.0/24 DNSimple Corporation | ||||||
| NS | ns2.dnsimple.com | ||||||
| A | 2620:111:8005::53🇺🇸 AS327712620:111:8005::/48 Vultr Customer Route | ||||||
| A | 199.247.153.53🇺🇸 AS32771199.247.153.0/24 Vultr Customer Route | ||||||
| NS | ns3.dnsimple.com | ||||||
| A | 2620:111:8006::53🇺🇸 AS327712620:111:8006::/48 DNSimple Corporation | ||||||
| A | 199.247.154.53🇺🇸 AS32771199.247.154.0/24 DNSimple Corporation | ||||||
| NS | ns4.dnsimple-edge.org | ||||||
| A | 2620:111:8007::53🇺🇸 AS327712620:111:8007::/48 Vultr Customer Route | ||||||
| A | 199.247.155.53🇺🇸 AS32771199.247.155.0/24 Vultr Customer Route | ||||||
| SOA | ns1.dnsimple.comadmin@dnsimple.com serial=1676233970 | ||||||
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=1786188739 | ||||||
Subdomains
mail.workingknowledgeps.com |
Same first word
workingknowledgeps.com |
DNS History
9 records (5 active, 4 former)
○NSns1.bluehost.com2016-12-15 → 2017-12-14 · 4 obs
● 2017-12-14 04:15:10
○ 2026-02-17 14:00:46
○ 2026-08-08 11:46:38
●NSns1.dnsimple.com2026-02-17 → 2026-08-08 · 3 obs
● 2026-02-17 14:00:46
● 2026-08-08 11:46:38
○NSns2.bluehost.com2016-12-15 → 2017-12-14 · 4 obs
● 2017-12-14 04:15:10
○ 2026-02-17 14:00:46
○ 2026-08-08 11:46:38
●NSns2.dnsimple.com2026-02-17 → 2026-08-08 · 3 obs
● 2026-02-17 14:00:46
● 2026-08-08 11:46:38
●NSns3.dnsimple.com2026-02-17 → 2026-08-08 · 3 obs
● 2026-02-17 14:00:46
● 2026-08-08 11:46:38
●NSns4.dnsimple-edge.org2026-02-17 → 2026-08-08 · 3 obs
● 2026-02-17 14:00:46
● 2026-08-08 11:46:38
○MXmail.workingknowledgeps.com2016-12-15 → 2017-12-14 · 4 obs
● 2017-12-14 04:15:10
○ 2026-02-17 14:00:46
○ 2026-08-08 11:46:38
○A142.4.4.132016-12-15 → 2017-12-14 · 4 obs
● 2017-12-14 04:15:10
○ 2026-02-17 14:00:46
○ 2026-08-08 11:46:38
●A3.131.150.692026-02-17 → 2026-08-08 · 3 obs
● 2026-02-17 14:00:46
● 2026-08-08 11:46:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| workingknowledgeps.com | ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple-edge.org | 6 records |
✅ Authoritative Response
Server:199.247.155.53
NS records: ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple-edge.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for workingknowledgeps.com (unsigned zone)
⏱️ Timing
Total: 1036ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 3.131.150.69 |
| NS | 4 | ns1.dnsimple.com, ns2.dnsimple.com... |
| SOA | 1 | ns1.dnsimple.com admin.dnsimple.com |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns1.dnsimple.com, ns1.dnsimple.com, ns2.dnsimple.com...)
Analysis
Hierarchy
workingknowledgeps.com is a parent domain of mail.workingknowledgeps.com.
IP Addresses
workingknowledgeps.com resolves to just one IP address, 3.131.150.69.
Two other host names, along with linux-foundation.info, shivacloud.net and marshallcountydems.com, also share IP numbers with workingknowledgeps.com.
Name Servers
The NS records for workingknowledgeps.com point to four name servers: ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com and ns4.dnsimple-edge.org.
workingknowledgeps.com shares at least some of its name servers with other domains, including maudumc.org, martin-sandra.net, domaincord.com and two others.
These name servers are frequently seen alongside the name servers ns4.dnsimple.com, ns2.dnsimple-edge.net, ns1.dnsimple-edge.com and ns3.dnsimple-edge.io.
The host names ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com and ns4.dnsimple-edge.org each resolve to two IP addresses: ns1.dnsimple.com resolves to 199.247.152.53 and 2620:111:8004::53; ns2.dnsimple.com resolves to 199.247.153.53 and 2620:111:8005::53; ns3.dnsimple.com resolves to 199.247.154.53 and 2620:111:8006::53; ns4.dnsimple-edge.org resolves to 199.247.155.53 and 2620:111:8007::53.