courses.masteringthemix.com - robtex.com
courses.masteringthemix.com
| DNSSEC | ⚠️ Not signed | ||||||
| MX | aspmx.l.google.com ⭐ | ||||||
| A | 2607:f8b0:4004:c23::1b🇺🇸 Google2607:f8b0:4004::/48 | ||||||
| PTR | yuiadrs-in-f27.1e100.net | ||||||
| A | 142.251.16.26🇺🇸 Google142.251.16.0/24 | ||||||
| PTR | bl-in-f26.1e100.net | ||||||
| MX | alt1.aspmx.l.google.com(5) | ||||||
| A | 2607:f8b0:4023:2801::1a🇺🇸 Google2607:f8b0::/32 | ||||||
| PTR | lcausi-in-f26.1e100.net | ||||||
| A | 192.178.128.26🇺🇸 Google192.178.128.0/24 | ||||||
| PTR | lcausi-in-f26.1e100.net | ||||||
| MX | alt2.aspmx.l.google.com(5) | ||||||
| A | 2607:f8b0:4023:3003::1a🇺🇸 Google2607:f8b0::/32 | ||||||
| PTR | yulnkjt-in-f26.1e100.net | ||||||
| A | 172.253.145.27🇺🇸 Google172.253.145.0/24 | ||||||
| PTR | yulnkjt-in-f27.1e100.net | ||||||
| MX | aspmx2.googlemail.com(10) | ||||||
| A | 2800:3f0:4003:c0f::1a🇨🇱 Google2800:3f0:4003::/48 | ||||||
| A | 108.177.123.26🇺🇸 Google108.177.123.0/24 | ||||||
| PTR | lcscld-in-f26.1e100.net | ||||||
| MX | aspmx3.googlemail.com(10) | ||||||
| A | 2607:f8b0:4023:3003::1a🇺🇸 Google2607:f8b0::/32 | ||||||
| PTR | yulnkjt-in-f26.1e100.net | ||||||
| A | 172.253.145.27🇺🇸 Google172.253.145.0/24 | ||||||
| PTR | yulnkjt-in-f27.1e100.net | ||||||
| TXT | v=spf1 a mx a:mail.courses.masteringthemix.com include:_spf.google.com -all | ||||||
| TXT | google-site-verification=O8QvYNjODqxXQar2ZcLM4qVkObLoOqu9Le9QUwNqZEw | ||||||
masteringthemix.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 23.227.38.32🇨🇦 Cloudflare23.227.38.0/23 Shopify 151 O'Connor Street, Ground floor Ottawa ON K2P 2L8 Canada | ||||||
| NS | ns-cloud-b1.googledomains.com ⭐ | ||||||
| NS | ns-cloud-b2.googledomains.com | ||||||
| NS | ns-cloud-b3.googledomains.com | ||||||
| NS | ns-cloud-b4.googledomains.com | ||||||
| MX | aspmx.l.google.com ⭐ | ||||||
| MX | alt1.aspmx.l.google.com(5) | ||||||
| MX | alt2.aspmx.l.google.com(5) | ||||||
| MX | aspmx2.googlemail.com(10) | ||||||
| MX | aspmx3.googlemail.com(10) | ||||||
| TXT | klaviyo-site-verification=JgPYuC | ||||||
| TXT | google-site-verification=_BXIofRN_nbgmLl0NX-JFCn-cCTgrv1ioOBv__P4Pp0 | ||||||
| TXT | v=spf1 include:_spf.google.com include:shops.shopify.com include:servers.mcsv... | ||||||
| TXT | apple-domain-verification=pkzKDlzRjST-1Lph-Mnyukib0eUI7Mf2PXEL-A10wlQ | ||||||
| SOA | ns-cloud-b1.googledomains.comcloud-dns-hostmaster@google.com serial=28 | ||||||
rank #154112 in the tld
📈 Tranco rank: #601,619
Subdomains
mail.courses.masteringthemix.com |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●MXalt1.aspmx.l.google.com2026-03-26 → 2026-05-15 · 2 obs
● 2026-05-15 09:19:56
●MXalt2.aspmx.l.google.com2026-03-26 → 2026-05-15 · 2 obs
● 2026-05-15 09:19:56
●MXaspmx.l.google.com2026-03-26 → 2026-05-15 · 2 obs
● 2026-05-15 09:19:56
●MXaspmx2.googlemail.com2026-03-26 → 2026-05-15 · 2 obs
● 2026-05-15 09:19:56
●MXaspmx3.googlemail.com2026-03-26 → 2026-05-15 · 2 obs
● 2026-05-15 09:19:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| masteringthemix.com | ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com, ns-cloud-b4.googledomains.com | 8 records |
✅ Authoritative Response
Server:216.239.34.107
NS records: ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com, ns-cloud-b4.googledomains.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for masteringthemix.com (unsigned zone)
⏱️ Timing
Total: 414ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| MX | 5 | aspmx2.googlemail.com (pri: 10), alt2.aspmx.l.google.com (pri: 5)... |
| TXT | 2 | google-site-verification=O8QvYNjODqxXQar, v=spf1 a mx a:mail.courses.masteringthem |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ns-cloud-b1.googledomains.com, ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com...)
Analysis
Hierarchy
courses.masteringthemix.com is the parent of mail.courses.masteringthemix.com.
Mail Servers
Five mail servers handle courses.masteringthemix.com: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.
courses.masteringthemix.com shares mail servers with other domains at least partially; for instance studioeder.com, chago.org, ns500758.ns500698.ns500758.ns500758.ns500698.ns500758.ns500736.ns500735.ns500698.ns500736.ns500698.ns500735.ns500686.ns500698.ns500619.ns500619.trackreceptor.com, ns500698.ns500758.ns500698.ns500759.ns500736.ns500735.ns500735.ns500698.ns500708.ns500698.ns500708.ns500576.ns500619.ns500576.ns500576.ns500652.trackreceptor.com and allcon.be.
These mail servers are often used alongside alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx4.googlemail.com and aspmx5.googlemail.com.
Two IP numbers per host:
aspmx2.googlemail.com points to: 2800:3f0:4003:c0f::1a and 108.177.123.26.
aspmx3.googlemail.com points to: 2607:f8b0:4023:3003::1a and 172.253.145.27.
aspmx.l.google.com points to: 2607:f8b0:4004:c23::1b and 142.251.16.26.
alt1.aspmx.l.google.com points to: 2607:f8b0:4023:2801::1a and 192.178.128.26.
alt2.aspmx.l.google.com points to: 2607:f8b0:4023:3003::1a and 172.253.145.27.
Hosts pointing to 2607:f8b0:4023:3003::1a: aspmx3.googlemail.com and alt2.aspmx.l.google.com.
Hosts pointing to 172.253.145.27: aspmx3.googlemail.com and alt2.aspmx.l.google.com.