sfcenter.net - robtex.com
sfcenter.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::6815:10e8🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3030::ac43:d8d2🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.16.232Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.216.210🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | mckenzie.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:26fd🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mckenzie.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2fd🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | mckenzie.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22fd🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | mckenzie.ns.cloudflare.com | ||||||
| A | 108.162.194.253🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mckenzie.ns.cloudflare.com | ||||||
| A | 162.159.38.253Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mckenzie.ns.cloudflare.com | ||||||
| A | 172.64.34.253🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mckenzie.ns.cloudflare.com | ||||||
| NS | tanner.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2c61🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | tanner.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c361🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | tanner.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2361🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | tanner.ns.cloudflare.com | ||||||
| A | 108.162.195.97🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | tanner.ns.cloudflare.com | ||||||
| A | 162.159.44.97Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | tanner.ns.cloudflare.com | ||||||
| A | 172.64.35.97🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | tanner.ns.cloudflare.com | ||||||
| MX | mx.sfcenter.net.cust.a.hostedemail.com ⭐ | ||||||
| A | 216.40.42.4🇨🇦 TUCOWS216.40.32.0/20 Tucows International | ||||||
| PTR | mx.hostedemail.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.16.232, 172.67.216.210 | ||||||
| IPv6 hints | 2606:4700:3030::6815:10e8, 2606:4700:3030::ac43:d8d2 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=198, name=cloudflare-ech.com | ||||||
| SOA | mckenzie.ns.cloudflare.comdns@cloudflare.com serial=2399825557 | ||||||
net
| 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=1776224612 | ||||||
Same first word
Similar names
DNS History
9 records (7 active, 2 former)
●NSmckenzie.ns.cloudflare.com2026-02-21 → 2026-04-15 · 2 obs
● 2026-04-15 04:08:48
●NStanner.ns.cloudflare.com2026-02-21 → 2026-04-15 · 2 obs
● 2026-04-15 04:08:48
●MXmx.sfcenter.net.cust.a.hostedemail.com2026-02-21 → 2026-04-15 · 2 obs
● 2026-04-15 04:08:48
●A104.21.16.2322026-03-27 → 2026-04-15 · 3 obs
● 2026-03-27 19:44:06
● 2026-04-15 04:08:48
○A172.64.80.12026-02-21 → 2026-02-21 · 3 obs
○ 2026-03-27 19:44:06
○ 2026-04-15 04:08:48
●A172.67.216.2102026-03-27 → 2026-04-15 · 3 obs
● 2026-03-27 19:44:06
● 2026-04-15 04:08:48
○A2606:4700:130:436c:6f75:6466:6c61:72652026-02-21 → 2026-02-21 · 3 obs
○ 2026-03-27 19:44:06
○ 2026-04-15 04:08:48
●A2606:4700:3030::6815:10e82026-03-27 → 2026-04-15 · 3 obs
● 2026-03-27 19:44:06
● 2026-04-15 04:08:48
●A2606:4700:3030::ac43:d8d22026-03-27 → 2026-04-15 · 3 obs
● 2026-03-27 19:44:06
● 2026-04-15 04:08:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | d.gtld-servers.net, k.gtld-servers.net, e.gtld-servers.net, g.gtld-servers.net... | - |
| sfcenter.net | mckenzie.ns.cloudflare.com, tanner.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.35.97
NS records: mckenzie.ns.cloudflare.com, tanner.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sfcenter.net (unsigned zone)
⏱️ Timing
Total: 403ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.216.210, 104.21.16.232 |
| AAAA | 2 | 2606:4700:3030::6815:10e8, 2606:4700:3030::ac43:d8d2 |
| NS | 2 | mckenzie.ns.cloudflare.com, tanner.ns.cloudflare.com |
| MX | 1 | mx.sfcenter.net.cust.a.hostedemail.com ( |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | mckenzie.ns.cloudflare.com dns.cloudflar |
Analysis
IP Addresses
sfcenter.net maps to four IP numbers: 2606:4700:3030::6815:10e8, 2606:4700:3030::ac43:d8d2, 104.21.16.232 and 172.67.216.210.
other host names include bdtizmir.org, deploynix.io, localera.com, xunleiwang.cn and autodiscover.bezpecnostniobchod.cz; they share IP numbers with sfcenter.net.
Name Servers
Two name servers mckenzie.ns.cloudflare.com and tanner.ns.cloudflare.com handle the delegation for sfcenter.net.
sfcenter.net shares the same name server setup as other domains, for instance prehabzone.com, utaonforhaving.com, liberaware.co.jp, emanrisk.net and msbsubs.com.
sfcenter.net at least partially shares name servers with other domains, for instance kido-projects.com, icif.ru, 4ddigital.co.uk, phonedroid.fr and itogari.info.
These name servers are commonly used alongside iris.ns.cloudflare.com.
Six IP addresses per host:
mckenzie.ns.cloudflare.com points to 2606:4700:50::a29f:26fd, 2803:f800:50::6ca2:c2fd, 2a06:98c1:50::ac40:22fd, 108.162.194.253, 162.159.38.253 and 172.64.34.253; tanner.ns.cloudflare.com points to 2606:4700:58::a29f:2c61, 2803:f800:50::6ca2:c361, 2a06:98c1:50::ac40:2361, 108.162.195.97, 162.159.44.97 and 172.64.35.97
Mail Servers
sfcenter.net is handled by a single mail server, mx.sfcenter.net.cust.a.hostedemail.com.
The host name mx.sfcenter.net.cust.a.hostedemail.com points to IP 216.40.42.4.