mailserver.kristof.tech - robtex.com
mailserver.kristof.tech
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::ac43:84a3🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3034::6815:d54🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.13.84Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.132.163🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.13.84, 172.67.132.163 | ||||||
| IPv6 hints | 2606:4700:3033::ac43:84a3, 2606:4700:3034::6815:d54 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=47, name=cloudflare-ech.com | ||||||
kristof.tech
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::ac43:84a3🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3034::6815:d54🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.13.84Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.132.163🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | aiden.ns.cloudflare.com ⭐ | ||||||
| NS | cruz.ns.cloudflare.com | ||||||
| MX | work-mx.app.hey.com ⭐ | ||||||
| TXT | hey-verification:yVAUsrEnurKB9Ty1jfztsASb | ||||||
| TXT | v=spf1 include:_spf.hey.com ~all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.13.84, 172.67.132.163 | ||||||
| IPv6 hints | 2606:4700:3033::ac43:84a3, 2606:4700:3034::6815:d54 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=47, name=cloudflare-ech.com | ||||||
| SOA | aiden.ns.cloudflare.comdns@cloudflare.com serial=2409589222 | ||||||
Previously MX for
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
●A104.21.13.842026-07-16 → 2026-07-16 · 2 obs
○ 2017-11-02 15:54:12
● 2026-07-16 12:34:48
● 2026-07-16 12:34:48
●A172.67.132.1632026-07-16 → 2026-07-16 · 2 obs
○ 2017-11-02 15:54:12
● 2026-07-16 12:34:48
● 2026-07-16 12:34:48
●A2606:4700:3033::ac43:84a32026-07-16 → 2026-07-16 · 2 obs
○ 2017-11-02 15:54:12
● 2026-07-16 12:34:48
● 2026-07-16 12:34:48
●A2606:4700:3034::6815:d542026-07-16 → 2026-07-16 · 2 obs
○ 2017-11-02 15:54:12
● 2026-07-16 12:34:48
● 2026-07-16 12:34:48
○A5.255.78.552017-11-02 → 2017-11-02 · 2 obs
● 2017-11-02 15:54:12
○ 2026-07-16 12:34:48
○ 2026-07-16 12:34:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tech | ns01.trs-dns.com, ns10.trs-dns.org, ns10.trs-dns.info, ns01.trs-dns.net | - |
| kristof.tech | cruz.ns.cloudflare.com, aiden.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.59.55
NS records: cruz.ns.cloudflare.com, aiden.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kristof.tech (unsigned zone)
⏱️ Timing
Total: 234ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.132.163, 104.21.13.84 |
| AAAA | 2 | 2606:4700:3033::ac43:84a3, 2606:4700:3034::6815:d54 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
Analysis
IP Addresses
mailserver.kristof.tech directs to four IP numbers, which are 104.21.13.84, 172.67.132.163, 2606:4700:3033::ac43:84a3 and 2606:4700:3034::6815:d54.
Two other host names, along with k86sportpsms.pro, botany.hu and mail.grabedentalhealth.com, also share IP numbers with mailserver.kristof.tech.