mail.301.st - robtex.com
mail.301.st
| DNSSEC | ⚠️ Not signed | ||||||
| A | 51.68.21.133🇫🇷 OVH51.68.0.0/16 | ||||||
| PTR | mail.301.st | ||||||
301.st
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::6815:20f1🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::ac43:bc4c🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.32.241Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.188.76🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | crystal.ns.cloudflare.com ⭐ | ||||||
| NS | lamar.ns.cloudflare.com | ||||||
| MX | mail.301.st ⭐ | ||||||
| MX | emx.mail.ru(20) | ||||||
| TXT | google-site-verification=4EIuvBhveKHS69YgQYkq79r61JWj9lUqDbcD5BQE9mM | ||||||
| TXT | google-site-verification=F_evauNlzUrZeVBg1YoDgb1AAPzJUaand8usa3FA9gI | ||||||
| TXT | mailru-domain: QJDnsj92pJrJEWGe | ||||||
| TXT | v=spf1 ip4:51.68.21.133 include:spf.postal.301.st include:_spf.mailersend.net... | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.32.241, 172.67.188.76 | ||||||
| IPv6 hints | 2606:4700:3033::6815:20f1, 2606:4700:3037::ac43:bc4c | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=107, name=cloudflare-ech.com | ||||||
| SOA | crystal.ns.cloudflare.comdns@cloudflare.com serial=2399695950 | ||||||
PTR for
MX for
Same first word
Similar names
DNS History
1 record (1 active, 0 former)
●A51.68.21.1332026-03-29 → 2026-04-03 · 2 obs
● 2026-03-29 08:21:30
● 2026-04-03 23:09:10
● 2026-04-03 23:09:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| st | ns1.bahnhof.net, dns-st.bahnhof.net, west-2.dns-us.st, southeast-2.dns-au.st | 8 records |
| 301.st | lamar.ns.cloudflare.com, crystal.ns.cloudflare.com | - |
✅ Authoritative Response
Server:162.159.44.142
NS records: lamar.ns.cloudflare.com, crystal.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for st (unsigned zone)
⏱️ Timing
Total: 272ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 51.68.21.133 |
📌 Glue Records Collected
Total: 8
In-bailiwick: 4 (west-2.dns-us.st, southeast-2.dns-au.st, west-2.dns-us.st...)
Out-of-bailiwick: 4 (ns1.bahnhof.net, dns-st.bahnhof.net, ns1.bahnhof.net...)
Analysis
Mail Server Role
mail.301.st serves as the mail server for 301.st.
Together with mail.301.st, emx.mail.ru is commonly used as a mail server.
IP Addresses
mail.301.st resolves to a single IP: 51.68.21.133.
Other host names share IP numbers with mail.301.st; for instance ip133.ip-51-68-21.eu.