ofcourseusa.com - robtex.com
ofcourseusa.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 172.234.24.211🇺🇸 AKAMAI-LINODE-AP172.234.16.0/20 Akamai Technologies | ||||||
| PTR | k8s-svc-lander-namecheap-expired-us-ord-02.parklogic.net | ||||||
| A | 172.239.57.117🇺🇸 AKAMAI-LINODE-AP172.239.32.0/19 Akamai Technologies | ||||||
| NS | dns101.registrar-servers.com ⭐ | ||||||
| A | 2600:3c02::f03c:93ff:febe:d723🇺🇸 AKAMAI-LINODE-AP2600:3c02::/32 Akamai Technologies | ||||||
| A | 170.187.200.230🇺🇸 AKAMAI-LINODE-AP170.187.200.0/21 Akamai Technologies | ||||||
| PTR | latte.parklogic.com | ||||||
| NS | dns102.registrar-servers.com | ||||||
| A | 2600:3c02::f03c:93ff:febe:c249🇺🇸 AKAMAI-LINODE-AP2600:3c02::/32 Akamai Technologies | ||||||
| A | 23.239.17.221🇺🇸 AKAMAI-LINODE-AP23.239.16.0/22 Akamai Technologies | ||||||
| PTR | merlot.parklogic.com | ||||||
| MX | mx.plingest.com ⭐ | ||||||
| A | 38.143.66.193🇺🇸 AS6302338.143.66.0/24 Proxy-registered route object 2011686 | ||||||
| PTR | 193-66-143-38.clients.gthost.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | dns101.registrar-servers.comhostmaster@parklogic.com 2021-05-19 #1 | ||||||
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=1774458657 | ||||||
Same first word
ofcourseusa.com |
DNS History
23 records (5 active, 18 former)
○NSdns1.registrar-servers.com2026-03-25 → 2026-03-25 · 1 obs
●NSdns101.registrar-servers.com2026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 17:11:36
●NSdns102.registrar-servers.com2026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 17:11:36
○NSdns2.registrar-servers.com2026-03-25 → 2026-03-25 · 1 obs
○NSns1.dsredirection.com2016-11-20 → 2016-11-20 · 4 obs
● 2016-11-20 07:30:00
○ 2017-05-26 11:10:26
○ 2026-03-25 17:11:36
○NSns1.parkingcrew.net2017-05-26 → 2017-05-26 · 3 obs
● 2017-05-26 11:10:26
○ 2026-03-25 17:11:36
○NSns1.sedoparking.com2015-05-17 → 2016-01-21 · 4 obs
● 2016-01-21 01:18:44
○ 2016-11-20 07:30:00
○ 2026-03-25 17:11:36
○NSns2.dsredirection.com2016-11-20 → 2016-11-20 · 4 obs
● 2016-11-20 07:30:00
○ 2017-05-26 11:10:26
○ 2026-03-25 17:11:36
○NSns2.parkingcrew.net2017-05-26 → 2017-05-26 · 3 obs
● 2017-05-26 11:10:26
○ 2026-03-25 17:11:36
○NSns2.sedoparking.com2015-05-17 → 2016-01-21 · 4 obs
● 2016-01-21 01:18:44
○ 2016-11-20 07:30:00
○ 2026-03-25 17:11:36
○MXmail.h-email.net2017-05-26 → 2017-05-26 · 3 obs
● 2017-05-26 11:10:26
○ 2026-03-25 17:11:36
○MXmail.nickstel.com2015-05-17 → 2016-01-21 · 4 obs
● 2016-01-21 01:18:44
○ 2016-11-20 07:30:00
○ 2026-03-25 17:11:36
●MXmx.plingest.com2026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 17:11:36
●A172.234.24.2112026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 17:11:36
●A172.239.57.1172026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 17:11:36
○A185.53.178.72017-05-26 → 2017-05-26 · 3 obs
● 2017-05-26 11:10:26
○ 2026-03-25 17:11:36
○A199.59.166.1092016-04-14 → 2016-04-14 · 4 obs
● 2016-04-14 20:29:12
○ 2016-11-20 07:30:00
○ 2026-03-25 17:11:36
○A208.73.210.2002016-11-20 → 2016-11-20 · 4 obs
● 2016-11-20 07:30:00
○ 2017-05-26 11:10:26
○ 2026-03-25 17:11:36
○A208.73.210.2142016-11-20 → 2016-11-20 · 4 obs
● 2016-11-20 07:30:00
○ 2017-05-26 11:10:26
○ 2026-03-25 17:11:36
○A208.73.210.2172016-11-20 → 2016-11-20 · 4 obs
● 2016-11-20 07:30:00
○ 2017-05-26 11:10:26
○ 2026-03-25 17:11:36
○A208.73.211.1782016-11-20 → 2016-11-20 · 4 obs
● 2016-11-20 07:30:00
○ 2017-05-26 11:10:26
○ 2026-03-25 17:11:36
○A72.52.4.912015-05-17 → 2016-01-21 · 4 obs
● 2016-01-21 01:18:44
○ 2016-04-14 20:29:12
○ 2026-03-25 17:11:36
○PTRns1.dsredirection.com2016-11-20 → 2016-11-20 · 2 obs
○ 2026-03-25 17:11:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, g.gtld-servers.net, m.gtld-servers.net, e.gtld-servers.net... | - |
| ofcourseusa.com | dns101.registrar-servers.com, dns102.registrar-servers.com | 4 records |
✅ Authoritative Response
Server:23.239.17.221
NS records: dns101.registrar-servers.com, dns102.registrar-servers.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ofcourseusa.com (unsigned zone)
⏱️ Timing
Total: 138ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.239.57.117, 172.234.24.211 |
| NS | 2 | dns102.registrar-servers.com, dns101.registrar-servers.com |
| MX | 1 | mx.plingest.com (pri: 10) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | dns101.registrar-servers.com hostmaster. |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (dns101.registrar-servers.com, dns101.registrar-servers.com, dns102.registrar-servers.com...)
Analysis
IP Addresses
ofcourseusa.com points to two IP numbers: 172.234.24.211 and 172.239.57.117.
Other host names, for instance biangtotoo.online, petirmerahdatang.pro, mail.tupersonal.info, cartoonlair.com and backbonetraining.net share IP numbers with ofcourseusa.com.
Name Servers
ofcourseusa.com's delegation is to two name servers dns101.registrar-servers.com and dns102.registrar-servers.com.
ofcourseusa.com shares the same name server configuration as other domains, such as chungtsai03hy.ambitionb.com, light-sabers.net, speedwaydrive.com, altacarga.com and londonerlife.com.
Host names with two IP numbers: dns101.registrar-servers.com points to 2600:3c02::f03c:93ff:febe:d723 and 170.187.200.230; dns102.registrar-servers.com points to 2600:3c02::f03c:93ff:febe:c249 and 23.239.17.221
Mail Servers
ofcourseusa.com is served by a single mail server, mx.plingest.com.
ofcourseusa.com uses the same mail server setup as other domains such as cdn.reinforce.coupons, dewa66.lol, closinpay.com, free-ts8188.2fh.co and www.taipeischool.org.
mx.plingest.com points to IP number 38.143.66.193.