crashcourse.net - robtex.com
crashcourse.net
| 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 | 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 | ||||||
| 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 | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns2.afternic.comdns@jomax.net serial=1 | ||||||
net
| 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=1771291465 | ||||||
Same first word
Similar names
DNS History
20 records (4 active, 16 former)
○NSns-cloud-c1.googledomains.com2016-03-25 → 2017-05-22 · 4 obs
● 2016-03-25 06:10:22
● 2017-05-22 08:47:14
○ 2026-03-23 03:24:24
○NSns-cloud-c2.googledomains.com2016-03-25 → 2017-05-22 · 4 obs
● 2016-03-25 06:10:22
● 2017-05-22 08:47:14
○ 2026-03-23 03:24:24
○NSns-cloud-c3.googledomains.com2016-03-25 → 2017-05-22 · 4 obs
● 2016-03-25 06:10:22
● 2017-05-22 08:47:14
○ 2026-03-23 03:24:24
○NSns-cloud-c4.googledomains.com2016-03-25 → 2017-05-22 · 4 obs
● 2016-03-25 06:10:22
● 2017-05-22 08:47:14
○ 2026-03-23 03:24:24
○NSns.buydomains.com2007-09-18 → 2015-12-24 · 4 obs
● 2015-12-24 21:26:14
○ 2016-03-25 06:10:22
○ 2026-03-23 03:24:24
●NSns1.afternic.com2026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 03:24:24
●NSns2.afternic.com2026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 03:24:24
○NSthis-domain-for-sale.com2007-09-18 → 2007-09-18 · 3 obs
○ 2015-05-14 10:23:24
○ 2026-03-23 03:24:24
○MXalt1.gmr-smtp-in.l.google.com2016-03-25 → 2017-05-22 · 4 obs
● 2016-03-25 06:10:22
● 2017-05-22 08:47:14
○ 2026-03-23 03:24:24
○MXalt2.gmr-smtp-in.l.google.com2016-03-25 → 2017-05-22 · 4 obs
● 2016-03-25 06:10:22
● 2017-05-22 08:47:14
○ 2026-03-23 03:24:24
○MXalt3.gmr-smtp-in.l.google.com2016-03-25 → 2017-05-22 · 4 obs
● 2016-03-25 06:10:22
● 2017-05-22 08:47:14
○ 2026-03-23 03:24:24
○MXalt4.gmr-smtp-in.l.google.com2016-03-25 → 2017-05-22 · 4 obs
● 2016-03-25 06:10:22
● 2017-05-22 08:47:14
○ 2026-03-23 03:24:24
○MXdev.null2007-09-18 → 2007-09-18 · 3 obs
○ 2015-05-14 10:23:24
○ 2026-03-23 03:24:24
○MXgmr-smtp-in.l.google.com2016-03-25 → 2017-05-22 · 4 obs
● 2016-03-25 06:10:22
● 2017-05-22 08:47:14
○ 2026-03-23 03:24:24
●A13.248.169.482026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 03:24:24
○A199.34.228.462016-03-25 → 2017-05-22 · 4 obs
● 2016-03-25 06:10:22
● 2017-05-22 08:47:14
○ 2026-03-23 03:24:24
○A207.148.248.1432015-10-22 → 2015-12-24 · 5 obs
● 2015-10-22 01:38:06
● 2015-12-24 21:26:14
○ 2016-03-25 06:10:22
○ 2026-03-23 03:24:24
○A208.254.26.1322007-09-18 → 2007-09-18 · 3 obs
○ 2015-05-14 10:23:24
○ 2026-03-23 03:24:24
○A50.63.202.1042015-05-14 → 2015-05-14 · 4 obs
● 2015-05-14 10:23:24
○ 2015-10-22 01:38:06
○ 2026-03-23 03:24:24
●A76.223.54.1462026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 03:24:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| crashcourse.net | 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 crashcourse.net (unsigned zone)
⏱️ Timing
Total: 250ms | 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
IP Addresses
crashcourse.net points to two IP numbers: 13.248.169.48 and 76.223.54.146.
Other host names such as pulmoclinic.com, sensocare.com, magenmed.com, mail.memoryticket.com and habban.com share IPs with crashcourse.net.
Name Servers
crashcourse.net is delegated to two name servers: ns1.afternic.com and ns2.afternic.com.
crashcourse.net shares the same name server setup as talkcool.com, expob2b.com, sydney.filesflash.com, 82.208-100-8.hotmediagroup.com and com.bn.authentication.acctmgr.user.email.
crashcourse.net at least partially shares name servers with other domains, for instance hawkmag.com, depotzero.com, zbwg.com, goaqi.com and envox.com.
these name servers are commonly used together with the name servers verification-kqnr5ht7z8pnvuelk6t645.ns101.verify.hn, verification-ilzyovyxkjcylcmj8rbffy.ns101.verify.hn, verification-9deuajwbjerwhjhfxwztav.ns101.verify.hn, verification-df6xaksrcxynprww8hzsaa.ns101.verify.hn and verification-a4pam2yt6wegxpu32fcxf7.ns101.verify.hn.
Host names with two IP numbers: ns1.afternic.com points to: 2603:5:2126::45 and 97.74.98.69; ns2.afternic.com points to: 2603:5:2226::45 and 173.201.66.69.