runcourses.com - robtex.com
runcourses.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=1778531671 | ||||||
Same first word
runcourses.com |
Similar names
DNS History
7 records (3 active, 4 former)
●NSmemphis.ns.cloudflare.com2026-03-26 → 2026-05-11 · 3 obs
● 2026-03-26 14:49:48
● 2026-05-11 20:41:00
○NSns1.amenworld.com2017-08-10 → 2017-08-10 · 3 obs
○ 2026-03-26 14:49:48
○ 2026-05-11 20:41:00
○NSns2.amenworld.com2017-08-10 → 2017-08-10 · 3 obs
○ 2026-03-26 14:49:48
○ 2026-05-11 20:41:00
●NSrosalie.ns.cloudflare.com2026-03-26 → 2026-05-11 · 3 obs
● 2026-03-26 14:49:48
● 2026-05-11 20:41:00
○MXmail-fr.securemail.pro2017-08-10 → 2017-08-10 · 3 obs
○ 2026-03-26 14:49:48
○ 2026-05-11 20:41:00
●MXsmtp.google.com2026-03-26 → 2026-05-11 · 3 obs
● 2026-03-26 14:49:48
● 2026-05-11 20:41:00
○A81.88.57.682017-08-10 → 2017-08-10 · 3 obs
○ 2026-03-26 14:49:48
○ 2026-05-11 20:41:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, c.gtld-servers.net, h.gtld-servers.net, e.gtld-servers.net... | - |
| runcourses.com | rosalie.ns.cloudflare.com, memphis.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.195.189
NS records: rosalie.ns.cloudflare.com, memphis.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for runcourses.com (unsigned zone)
⏱️ Timing
Total: 203ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | memphis.ns.cloudflare.com, rosalie.ns.cloudflare.com |
| MX | 1 | smtp.google.com (pri: 1) |
| TXT | 2 | google-site-verification=xnSB6LCHxcUdlM-, v=spf1 include:_spf.google.com ~all |
| SOA | 1 | memphis.ns.cloudflare.com dns.cloudflare |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (rosalie.ns.cloudflare.com, rosalie.ns.cloudflare.com, rosalie.ns.cloudflare.com...)
Analysis
Name Servers
runcourses.com is delegated to two name servers: memphis.ns.cloudflare.com and rosalie.ns.cloudflare.com.
runcourses.com shares the same name server setup as other domains, for example avalaraworks.com, premiumhomepartner.com, limitlesssolutionsgroupbids.com, linkedin-growstack.com and lifeguard-training.org.
runcourses.com at least partially shares name servers with other domains, for instance ilmbwear.com, pancakeswapfinance.world, perfumeshub.pk, rvenvy.com and klubinteligencjipolskiej.pl.
These name servers are often used with venus.ns.cloudflare.com and sam.ns.cloudflare.com.
Host names with six IP numbers:
memphis.ns.cloudflare.com points to: 2606:4700:58::a29f:2cbd, 2803:f800:50::6ca2:c3bd, 2a06:98c1:50::ac40:23bd, 108.162.195.189, 162.159.44.189 and 172.64.35.189; rosalie.ns.cloudflare.com points to: 2606:4700:50::a29f:2639, 2803:f800:50::6ca2:c239, 2a06:98c1:50::ac40:2239, 108.162.194.57, 162.159.38.57 and 172.64.34.57.
Mail Servers
runcourses.com is handled by a single mail server, smtp.google.com.
runcourses.com shares the same mail server setup as other domains, for instance itransition.org, alt123.googler.de, nfgroup.sk, wasalt.sa and jopontadomanybolt.hu.
runcourses.com shares mail servers with other domains at least partially, including junaberlin.de, abuzzwebtech.com, groupe-petroni.com, babaexpress.in and fuzzycows.com.
these mail servers are often used alongside aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
Host name smtp.google.com resolves to nine IP numbers: 2607:f8b0:4004:c23::1a, 2607:f8b0:4004:c23::1b, 2607:f8b0:4004:c27::1a, 2607:f8b0:4004:c27::1b, 142.251.163.26, 172.253.139.26, 172.253.139.27, 192.178.155.26 and 192.178.155.27.