optimal-heating.com - robtex.com
optimal-heating.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=1774761362 | ||||||
Same first word
optimal-heating.com |
DNS History
9 records (9 active, 0 former)
●NSns-cloud-a1.googledomains.com2026-02-19 → 2026-03-29 · 2 obs
● 2026-03-29 05:24:10
●NSns-cloud-a2.googledomains.com2026-02-19 → 2026-03-29 · 2 obs
● 2026-03-29 05:24:10
●NSns-cloud-a3.googledomains.com2026-02-19 → 2026-03-29 · 2 obs
● 2026-03-29 05:24:10
●NSns-cloud-a4.googledomains.com2026-02-19 → 2026-03-29 · 2 obs
● 2026-03-29 05:24:10
●MXalt1.aspmx.l.google.com2026-02-19 → 2026-03-29 · 2 obs
● 2026-03-29 05:24:10
●MXalt2.aspmx.l.google.com2026-02-19 → 2026-03-29 · 2 obs
● 2026-03-29 05:24:10
●MXalt3.aspmx.l.google.com2026-02-19 → 2026-03-29 · 2 obs
● 2026-03-29 05:24:10
●MXalt4.aspmx.l.google.com2026-02-19 → 2026-03-29 · 2 obs
● 2026-03-29 05:24:10
●MXaspmx.l.google.com2026-02-19 → 2026-03-29 · 2 obs
● 2026-03-29 05:24:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, f.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net... | - |
| optimal-heating.com | ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a3.googledomains.com, ns-cloud-a4.googledomains.com | 8 records |
✅ Authoritative Response
Server:216.239.36.106
NS records: ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a3.googledomains.com, ns-cloud-a4.googledomains.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 345ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-cloud-a3.googledomains.com, ns-cloud-a2.googledomains.com... |
| MX | 5 | alt2.aspmx.l.google.com (pri: 5), alt1.aspmx.l.google.com (pri: 5)... |
| TXT | 1 | v=spf1 include:_spf.google.com ~all |
| SOA | 1 | ns-cloud-a1.googledomains.com cloud-dns- |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ns-cloud-a1.googledomains.com, ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com...)
Analysis
Name Servers
optimal-heating.com delegates to four name servers: ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a3.googledomains.com and ns-cloud-a4.googledomains.com.
optimal-heating.com at least partially shares name servers with other domains, for instance oyocvis.com, familyresearchdoral.com, www.nattavut.com, luwke.com and logmind.com.
Host names with two IP numbers: ns-cloud-a1.googledomains.com points to 2001:4860:4802:32::6a and 216.239.32.106; ns-cloud-a2.googledomains.com points to 2001:4860:4802:34::6a and 216.239.34.106; ns-cloud-a3.googledomains.com points to 2001:4860:4802:36::6a and 216.239.36.106; ns-cloud-a4.googledomains.com points to 2001:4860:4802:38::6a and 216.239.38.106.
Mail Servers
optimal-heating.com is served by five mail servers: 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.
optimal-heating.com shares at least partially some mail servers with other domains, for instance 48north.co, ns500671.ns500742.ns500754.ns500671.ns500731.ns500671.ns500704.ns500705.ns500649.ns500142.lusty(0x736c7574)z.com, gbaudio.it, dzux.com and ns500599.ns500737.ns500724.ns500724.ns500737.ns500724.ns500724.ns500682.ns500599.ns500599.yummyflingsfinder.com.
Mail servers frequently appear alongside aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.
Host names with two IP numbers:
The host name aspmx.l.google.com points to 2607:f8b0:4004:c07::1b and 142.251.163.26.
The host name alt1.aspmx.l.google.com points to 2800:3f0:4003:c0f::1a and 108.177.123.27.
The host name alt2.aspmx.l.google.com points to 2a00:1450:4013:c1e::1b and 192.178.213.27.
The host name alt3.aspmx.l.google.com points to 2607:f8b0:4023:3003::1b and 172.253.145.27.
The host name alt4.aspmx.l.google.com points to 2607:f8b0:4003:c4a::1b and 142.251.96.27.