btfmailer.com - robtex.com
btfmailer.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3032::6815:2c19🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::ac43:c1f8🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.44.25Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.193.248🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | grannbo.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:2696🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | grannbo.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c296🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | grannbo.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2296🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | grannbo.ns.cloudflare.com | ||||||
| A | 108.162.194.150🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | grannbo.ns.cloudflare.com | ||||||
| A | 162.159.38.150Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | grannbo.ns.cloudflare.com | ||||||
| A | 172.64.34.150🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | grannbo.ns.cloudflare.com | ||||||
| NS | piotr.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3bde🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | piotr.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1de🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | piotr.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21de🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | piotr.ns.cloudflare.com | ||||||
| A | 108.162.193.222🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | piotr.ns.cloudflare.com | ||||||
| A | 172.64.33.222🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | piotr.ns.cloudflare.com | ||||||
| A | 173.245.59.222🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | piotr.ns.cloudflare.com | ||||||
| MX | mx.mail.outmsg.com ⭐ | ||||||
| A | 2a01:4f9:c012:bee8::1🇩🇪 Hetzner2a01:4f9::/32 HETZNER-IPv6-BLK | ||||||
| PTR | mail.outmsg.com | ||||||
| A | 65.108.149.219🇫🇮 Hetzner65.108.0.0/16 HETZNER-DC | ||||||
| PTR | mail.outmsg.com | ||||||
| TXT | google-site-verification=BYM0SgNfcJ3h4dzmwLPCWCDSu1_kYmj39N6Wz4-yMio | ||||||
| TXT | v=spf1 a mx ip4:65.108.62.168 ip6:2a01:4f9:c010:d2e4:0:0:0:1 include:spf.mail... | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.44.25, 172.67.193.248 | ||||||
| IPv6 | 2606:4700:3032::6815:2c19, 2606:4700:3037::ac43:c1f8 | ||||||
| SOA | grannbo.ns.cloudflare.comdns@cloudflare.com serial=2399340816 | ||||||
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=1771291435 | ||||||
Similar names
DNS History
7 records (7 active, 0 former)
●NSgrannbo.ns.cloudflare.com2026-03-20 → 2026-03-20 · 2 obs
● 2026-03-20 20:21:56
●NSpiotr.ns.cloudflare.com2026-03-20 → 2026-03-20 · 2 obs
● 2026-03-20 20:21:56
●MXmx.mail.outmsg.com2026-03-20 → 2026-03-20 · 2 obs
● 2026-03-20 20:21:56
●A104.21.44.252026-03-20 → 2026-03-20 · 2 obs
● 2026-03-20 20:21:56
●A172.67.193.2482026-03-20 → 2026-03-20 · 2 obs
● 2026-03-20 20:21:56
●A2606:4700:3032::6815:2c192026-03-20 → 2026-03-20 · 2 obs
● 2026-03-20 20:21:56
●A2606:4700:3037::ac43:c1f82026-03-20 → 2026-03-20 · 2 obs
● 2026-03-20 20:21:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| btfmailer.com | piotr.ns.cloudflare.com, grannbo.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server: 108.162.193.222
NS records: piotr.ns.cloudflare.com, grannbo.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for btfmailer.com (unsigned zone)
⏱️ Timing
Total: 244ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.44.25, 172.67.193.248 |
| AAAA | 2 | 2606:4700:3037::ac43:c1f8, 2606:4700:3032::6815:2c19 |
| NS | 2 | grannbo.ns.cloudflare.com, piotr.ns.cloudflare.com |
| MX | 1 | mx.mail.outmsg.com (pri: 10) |
| TXT | 2 | google-site-verification=BYM0SgNfcJ3h4dz, v=spf1 a mx ip4:65.108.62.168 ip6:2a01:4 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | grannbo.ns.cloudflare.com dns.cloudflare |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (piotr.ns.cloudflare.com, piotr.ns.cloudflare.com, piotr.ns.cloudflare.com...)
Analysis
IP Addresses
btfmailer.com points to four IP numbers: 2606:4700:3032::6815:2c19, 2606:4700:3037::ac43:c1f8, 104.21.44.25 and 172.67.193.248.
Other host names, for instance xache.net, yesmaxon.com, institutorosas.gob.ar, eatdirtmudrun.com and semeynaya-kuchka.ru share IP numbers with btfmailer.com.
Name Servers
btfmailer.com's delegation is to two name servers grannbo.ns.cloudflare.com and piotr.ns.cloudflare.com.
btfmailer.com shares the same name server configuration as other domains, such as nedal.ws, bankrus.ru, blacktiefundllc.com, pusa.workers.dev and runechord.com.
btfmailer.com at least partially shares its name servers with other domains, for instance artradarjournal.com, shabakh.com, servishane.com, szwzys.com and shtjjx.com.
These name servers are commonly used alongside betty.ns.cloudflare.com and dexter.ns.cloudflare.com.
Host names with six IP numbers:
grannbo.ns.cloudflare.com points to: 2606:4700:50::a29f:2696, 2803:f800:50::6ca2:c296, 2a06:98c1:50::ac40:2296, 108.162.194.150, 162.159.38.150 and 172.64.34.150.
piotr.ns.cloudflare.com points to: 2606:4700:58::adf5:3bde, 2803:f800:50::6ca2:c1de, 2a06:98c1:50::ac40:21de, 108.162.193.222, 172.64.33.222 and 173.245.59.222.
Mail Servers
btfmailer.com is served by a single mail server, mx.mail.outmsg.com.
btfmailer.com shares the same mail server setup as other domains, such as blacktiefundllc.com and oomidi.com.
btfmailer.com shares some mail servers with other domains at least partially, for example outmsg.com.
These mail servers are often used alongside the mail servers mail.outmsg.com.
Hostname mx.mail.outmsg.com resolves to two IPs: 2a01:4f9:c012:bee8::1 and 65.108.149.219.