smart-course.com - robtex.com
smart-course.com
| 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 | ns5.afternic.com ⭐ | ||||||
| A | 2603:5:2134::42🇺🇸 GODADDY-DNS2603:5:2130::/44 | ||||||
| PTR | ns5.afternic.com | ||||||
| A | 97.74.99.66🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns5.afternic.com | ||||||
| NS | ns6.afternic.com | ||||||
| A | 2603:5:2234::42🇺🇸 GODADDY-DNS2603:5:2230::/44 | ||||||
| PTR | ns6.afternic.com | ||||||
| A | 173.201.67.66🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns6.afternic.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns5.afternic.comdns@jomax.net 2025-09-30 #0 | ||||||
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=1775938992 | ||||||
Previously MX for
smart-course.com |
Same first word
smart-course.cz |
smart-course.com |
smart-course.ru |
DNS History
17 records (4 active, 13 former)
○NSns1.ardetamedia.com2015-08-22 → 2015-08-22 · 3 obs
○ 2015-12-24 02:28:16
○ 2026-04-11 20:23:58
○NSns1.digitalocean.com2016-11-27 → 2017-04-07 · 5 obs
● 2016-11-27 22:00:30
● 2017-04-07 22:04:56
○ 2026-02-19 16:14:56
○ 2026-04-11 20:23:58
○NSns2.ardetamedia.com2015-08-22 → 2015-08-22 · 3 obs
○ 2015-12-24 02:28:16
○ 2026-04-11 20:23:58
○NSns2.digitalocean.com2016-11-27 → 2017-04-07 · 5 obs
● 2016-11-27 22:00:30
● 2017-04-07 22:04:56
○ 2026-02-19 16:14:56
○ 2026-04-11 20:23:58
○NSns3.ardetamedia.com2015-08-22 → 2015-08-22 · 3 obs
○ 2015-12-24 02:28:16
○ 2026-04-11 20:23:58
○NSns3.digitalocean.com2016-11-27 → 2017-04-07 · 5 obs
● 2016-11-27 22:00:30
● 2017-04-07 22:04:56
○ 2026-02-19 16:14:56
○ 2026-04-11 20:23:58
○NSns4.ardetamedia.com2015-08-22 → 2015-08-22 · 3 obs
○ 2015-12-24 02:28:16
○ 2026-04-11 20:23:58
●NSns5.afternic.com2026-02-19 → 2026-04-11 · 3 obs
● 2026-02-19 16:14:56
● 2026-04-11 20:23:58
●NSns6.afternic.com2026-02-19 → 2026-04-11 · 3 obs
● 2026-02-19 16:14:56
● 2026-04-11 20:23:58
○MXmxa.mailgun.org2017-04-07 → 2017-04-07 · 4 obs
● 2017-04-07 22:04:56
○ 2026-02-19 16:14:56
○ 2026-04-11 20:23:58
○MXmxb.mailgun.org2017-04-07 → 2017-04-07 · 4 obs
● 2017-04-07 22:04:56
○ 2026-02-19 16:14:56
○ 2026-04-11 20:23:58
○MXsmart-course.com2015-08-22 → 2015-08-22 · 3 obs
○ 2015-12-24 02:28:16
○ 2026-04-11 20:23:58
○A128.199.122.1812017-04-07 → 2017-04-07 · 4 obs
● 2017-04-07 22:04:56
○ 2026-02-19 16:14:56
○ 2026-04-11 20:23:58
○A128.199.241.1062016-11-27 → 2016-11-27 · 4 obs
● 2016-11-27 22:00:30
○ 2017-04-07 22:04:56
○ 2026-04-11 20:23:58
●A13.248.169.482026-02-19 → 2026-04-11 · 3 obs
● 2026-02-19 16:14:56
● 2026-04-11 20:23:58
○A175.176.161.1322015-08-22 → 2015-08-22 · 3 obs
○ 2015-12-24 02:28:16
○ 2026-04-11 20:23:58
●A76.223.54.1462026-02-19 → 2026-04-11 · 3 obs
● 2026-02-19 16:14:56
● 2026-04-11 20:23:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| smart-course.com | ns5.afternic.com, ns6.afternic.com | 2 records |
✅ Authoritative Response
Server:173.201.67.66
NS records: ns5.afternic.com, ns6.afternic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for smart-course.com (unsigned zone)
⏱️ Timing
Total: 73ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 13.248.169.48, 76.223.54.146 |
| NS | 2 | ns5.afternic.com, ns6.afternic.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns5.afternic.com dns.jomax.net |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns5.afternic.com, ns6.afternic.com)
Analysis
IP Addresses
smart-course.com resolves to two IP numbers: 13.248.169.48 and 76.223.54.146.
other host names including mx.mx.mewz.net, vortek.org, bibleoftheyear.com, stockbilder.com and sparta.digital share IP numbers with smart-course.com.
Name Servers
smart-course.com is delegated to two name servers ns5.afternic.com and ns6.afternic.com.
smart-course.com shares the same name server setup as other domains, for instance nocotton.com, duomex.com, spaceconsult.net, mail.marketbonus.com and streamfreetv.com.
smart-course.com at least partially shares name servers with other domains, for instance webstores.shop, genialo.co, crossedu.com, fitnessvideos.xyz and coinma.com.
These name servers are commonly used with verification-gakbzzzqmt6gkcplw4efpp.ns101.verify.hn, verification-ryl9l7cn2xbgckdbkcguz6.ns101.verify.hn and verification-npn56vmbfo7hgrfbnbn65s.ns101.verify.hn.
Host names with two IP numbers:
The host name ns5.afternic.com points to 2603:5:2134::42 and 97.74.99.66; the host name ns6.afternic.com points to 2603:5:2234::42 and 173.201.67.66.