lettre.app - robtex.com
lettre.app
app
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns-tld1.charlestonroadregistry.com ⭐ | ||||||
| NS | ns-tld2.charlestonroadregistry.com | ||||||
| NS | ns-tld3.charlestonroadregistry.com | ||||||
| NS | ns-tld4.charlestonroadregistry.com | ||||||
| NS | ns-tld5.charlestonroadregistry.com | ||||||
| SOA | ns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=101427 | ||||||
Same first word
lettre.net |
lettre.ca |
lettre.de |
lettre.myshopify.com |
lettre.fr |
lettre.eu |
lettre.ch |
lettre.ru |
lettre.co |
lettre.dk |
lettre.be |
lettre.pl |
lettre.email |
lettre.com |
lettre.app |
lettre.org |
Similar names
DNS History
13 records (11 active, 2 former)
●NSsage.ns.cloudflare.com2026-05-24 → 2026-07-19 · 2 obs
● 2026-07-19 18:16:02
●NSselah.ns.cloudflare.com2026-05-24 → 2026-07-19 · 2 obs
● 2026-07-19 18:16:02
●MXalt1.aspmx.l.google.com2026-05-24 → 2026-07-19 · 2 obs
● 2026-07-19 18:16:02
●MXalt2.aspmx.l.google.com2026-05-24 → 2026-07-19 · 2 obs
● 2026-07-19 18:16:02
●MXaspmx.l.google.com2026-05-24 → 2026-07-19 · 2 obs
● 2026-07-19 18:16:02
●MXaspmx2.googlemail.com2026-05-24 → 2026-07-19 · 2 obs
● 2026-07-19 18:16:02
●MXaspmx3.googlemail.com2026-05-24 → 2026-07-19 · 2 obs
● 2026-07-19 18:16:02
●A104.21.3.272026-05-24 → 2026-07-19 · 2 obs
● 2026-07-19 18:16:02
●A172.67.130.202026-05-24 → 2026-07-19 · 2 obs
● 2026-07-19 18:16:02
●A2606:4700:3030::ac43:82142026-07-01 → 2026-07-19 · 3 obs
● 2026-07-01 00:33:10
● 2026-07-19 18:16:02
●A2606:4700:3031::6815:31b2026-07-01 → 2026-07-19 · 3 obs
● 2026-07-01 00:33:10
● 2026-07-19 18:16:02
○A2606:4700:3036::6815:31b2026-05-24 → 2026-05-24 · 3 obs
○ 2026-07-01 00:33:10
○ 2026-07-19 18:16:02
○A2606:4700:3036::ac43:82142026-05-24 → 2026-05-24 · 3 obs
○ 2026-07-01 00:33:10
○ 2026-07-19 18:16:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| app | ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com... | - |
| lettre.app | selah.ns.cloudflare.com, sage.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.35.236
NS records: selah.ns.cloudflare.com, sage.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for lettre.app (unsigned zone)
⏱️ Timing
Total: 1405ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.130.20, 104.21.3.27 |
| AAAA | 2 | 2606:4700:3031::6815:31b, 2606:4700:3030::ac43:8214 |
| NS | 2 | sage.ns.cloudflare.com, selah.ns.cloudflare.com |
| MX | 5 | aspmx.l.google.com (pri: 1), aspmx2.googlemail.com (pri: 10)... |
| TXT | 2 | google-site-verification=0ObaYKrt6CFtYS4, v=spf1 include:amazonses.com include:sen |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | sage.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
lettre.app directs to four IP numbers, which are 104.21.3.27, 172.67.130.20, 2606:4700:3030::ac43:8214 and 2606:4700:3031::6815:31b.
brianflanaryrealestate.com, portoon.com, www.stream2watchlive.co plus two other host names have IP numbers in common with lettre.app.
Name Servers
lettre.app is served by two delegated name servers, sage.ns.cloudflare.com and selah.ns.cloudflare.com.
The name server configuration of lettre.app is shared with other domains, for instance hiviefox.com, anadrasis.eu, mswgroup.cn and two others.
There is at least partial name server overlap between lettre.app and other domains — rsudsengeti.id, bcbn.ca, sheridanboutique.com and two more among them.
These name servers frequently co-occur with the name servers macy.ns.cloudflare.com and norah.ns.cloudflare.com.
Hosts with 6 IP addresses each:
sage.ns.cloudflare.com carries IP addresses 108.162.195.236, 162.159.44.236 and 172.64.35.236, with 3 other addresses beyond those.
selah.ns.cloudflare.com carries IP addresses 108.162.194.21, 162.159.38.21 and 172.64.34.21, with 3 other addresses beyond those.
Mail Servers
Five mail servers handle lettre.app: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.
At least some of the mail servers used by lettre.app are shared with other domains: ns500734.ns500734.ns500699.ns500693.ns500734.ns500693.ns500699.ns500588.ns500588.ns500112.dtrkdll.com, maurinet.com, floradeltropico.com and two others among them.
These mail servers are often deployed together with alt2.aspmx.l.google.com, alt1.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 other mail servers.
Host names pointing to two IP addresses:
aspmx2.googlemail.com maps to two IP addresses — 108.177.123.26 and 2800:3f0:4003:c0f::1b.
aspmx3.googlemail.com maps to two IP addresses — 172.253.116.26 and 2a00:1450:400b:c02::1a.
aspmx.l.google.com maps to two IP addresses — 173.194.45.26 and 2607:f8b0:4004:c07::1a.
alt1.aspmx.l.google.com maps to two IP addresses — 108.177.123.26 and 2800:3f0:4003:c0f::1a.
alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.27 and 2a00:1450:400b:c02::1a.
These two host names — aspmx2.googlemail.com and alt1.aspmx.l.google.com — each point to 108.177.123.26 IP addresses.
These two host names — aspmx3.googlemail.com and alt2.aspmx.l.google.com — each point to 2a00:1450:400b:c02::1a IP addresses.