coursearc.com - dns.ninja
coursearc.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=1785804522 | ||||||
Subdomains
virtualarkansas.coursearc.com |
riosalado.coursearc.com |
www.coursearc.com |
pasadena.coursearc.com |
umbc.coursearc.com |
nfte.coursearc.com |
idla.coursearc.com |
scde.coursearc.com |
nvccsd.coursearc.com |
Same first word
coursearc.com |
coursearc.review |
Similar names
carsource.com.au |
carsource.sg |
coursecar.com |
courscrea.com |
arcsource.com |
carsource.com |
carsource.co.uk |
arcsource.net |
crasource.com |
roscreacu.ie |
caresourc.com |
carsource.ca |
DNS History
11 records (10 active, 1 former)
●NSns-1075.awsdns-06.org2016-12-17 → 2026-08-04 · 2 obs
● 2026-08-04 01:17:52
●NSns-1736.awsdns-25.co.uk2016-12-17 → 2026-08-04 · 2 obs
● 2026-08-04 01:17:52
●NSns-55.awsdns-06.com2016-12-17 → 2026-08-04 · 2 obs
● 2026-08-04 01:17:52
●NSns-685.awsdns-21.net2016-12-17 → 2026-08-04 · 2 obs
● 2026-08-04 01:17:52
●MXalt1.aspmx.l.google.com2016-12-17 → 2026-08-04 · 2 obs
● 2026-08-04 01:17:52
●MXalt2.aspmx.l.google.com2016-12-17 → 2026-08-04 · 2 obs
● 2026-08-04 01:17:52
●MXaspmx.l.google.com2016-12-17 → 2026-08-04 · 2 obs
● 2026-08-04 01:17:52
●MXaspmx2.googlemail.com2016-12-17 → 2026-08-04 · 2 obs
● 2026-08-04 01:17:52
●MXaspmx3.googlemail.com2016-12-17 → 2026-08-04 · 2 obs
● 2026-08-04 01:17:52
○A104.236.59.522016-12-17 → 2016-12-17 · 3 obs
○ 2026-03-14 11:01:52
○ 2026-08-04 01:17:52
●A35.206.121.942026-03-14 → 2026-08-04 · 3 obs
● 2026-03-14 11:01:52
● 2026-08-04 01:17:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| coursearc.com | ns-55.awsdns-06.com, ns-685.awsdns-21.net, ns-1075.awsdns-06.org, ns-1736.awsdns-25.co.uk | 2 records |
✅ Authoritative Response
Server:205.251.196.51
NS records: ns-55.awsdns-06.com, ns-685.awsdns-21.net, ns-1075.awsdns-06.org, ns-1736.awsdns-25.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coursearc.com (unsigned zone)
⏱️ Timing
Total: 400ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 35.206.121.94 |
| NS | 4 | ns-1075.awsdns-06.org, ns-1736.awsdns-25.co.uk... |
| MX | 5 | aspmx.l.google.com (pri: 1), aspmx2.googlemail.com (pri: 10)... |
| TXT | 2 | openai-domain-verification=dv-aoTF4Et8VW, v=spf1 include:sendgrid.net include:_spf |
| SOA | 1 | ns-55.awsdns-06.com awsdns-hostmaster.am |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-55.awsdns-06.com, ns-55.awsdns-06.com)
Analysis
Hierarchy
coursearc.com serves as parent to virtualarkansas.coursearc.com, riosalado.coursearc.com, www.coursearc.com, pasadena.coursearc.com, umbc.coursearc.com along with a few other host names.
IP Addresses
coursearc.com resolves to just one IP address, 35.206.121.94.
Two other host names, along with 6degreessocial.com, a1aoptics.com and windswept.ca, also share IP numbers with coursearc.com.
Name Servers
The NS records for coursearc.com point to four name servers: ns-55.awsdns-06.com, ns-685.awsdns-21.net, ns-1075.awsdns-06.org and ns-1736.awsdns-25.co.uk.
coursearc.com has at least partial name server overlap with other domains, such as ocard.co, d32od5ene8jrpu.cloudfront.net, d1zj4rac8zmz0u.cloudfront.net and two others.
ns-55.awsdns-06.com, ns-685.awsdns-21.net, ns-1075.awsdns-06.org and ns-1736.awsdns-25.co.uk all point to exactly two IP numbers each: ns-55.awsdns-06.com → 205.251.192.55 and 2600:9000:5300:3700::1; ns-685.awsdns-21.net → 205.251.194.173 and 2600:9000:5302:ad00::1; ns-1075.awsdns-06.org → 205.251.196.51 and 2600:9000:5304:3300::1; ns-1736.awsdns-25.co.uk → 205.251.198.200 and 2600:9000:5306:c800::1.
Mail Servers
Mail for coursearc.com is handled by five mail servers, namely aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.
There is at least a partial MX overlap between coursearc.com and other domains, including liceoreginamargheritasalerno.it, caminha.net, vestro.com.br and two others.
These mail servers tend to appear in combination with mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt4.aspmx.l.google.com and 3 others.
Host names that have two IP addresses:
aspmx2.googlemail.com resolves to 108.177.123.26 and 2800:3f0:4003:c0f::1b.
aspmx3.googlemail.com resolves to 172.253.116.27 and 2a00:1450:400b:c02::1b.
aspmx.l.google.com resolves to 172.253.63.27 and 2607:f8b0:4004:c1b::1a.
alt1.aspmx.l.google.com resolves to 108.177.123.26 and 2800:3f0:4003:c0f::1b.
alt2.aspmx.l.google.com resolves to 172.253.116.27 and 2a00:1450:400b:c02::1a.
The host names aspmx2.googlemail.com and alt1.aspmx.l.google.com both resolve to 2800:3f0:4003:c0f::1b IP addresses.
The host names aspmx2.googlemail.com and alt1.aspmx.l.google.com both resolve to 108.177.123.26 IP addresses.
The host names aspmx3.googlemail.com and alt2.aspmx.l.google.com both resolve to 172.253.116.27 IP addresses.