mail.sptr.net - robtex.com

mail.sptr.net

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:8bcc🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:8a9🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.8.169Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.139.204🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.8.169, 172.67.139.204
IPv62606:4700:3033::ac43:8bcc, 2606:4700:3035::6815:8a9

sptr.net

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:8bcc🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:8a9🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.8.169Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.139.204🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSangelina.ns.cloudflare.com ⭐
NSduke.ns.cloudflare.com
MXin1-smtp.messagingengine.com ⭐
MXin2-smtp.messagingengine.com(20)
TXTv=spf1 include:spf.messagingengine.com ?all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.8.169, 172.67.139.204
IPv62606:4700:3033::ac43:8bcc, 2606:4700:3035::6815:8a9
SOAangelina.ns.cloudflare.comdns@cloudflare.com serial=2398009443
WOT: SAFE (70/100)
WOT: SAFE (90/100)

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DNS History

5 records (4 active, 1 former)

A104.21.8.169172.67.139.2042606:4700:3033::ac43:8bcc2606:4700:3035::6815:8a9172.64.80.1
●A104.21.8.1692026-03-25 → 2026-03-25 · 2 obs
○ 2026-03-11 11:00:50
● 2026-03-25 21:09:58
○A172.64.80.12026-03-11 → 2026-03-11 · 2 obs
● 2026-03-11 11:00:50
○ 2026-03-25 21:09:58
●A172.67.139.2042026-03-25 → 2026-03-25 · 2 obs
○ 2026-03-11 11:00:50
● 2026-03-25 21:09:58
●A2606:4700:3033::ac43:8bcc2026-03-11 → 2026-03-25 · 2 obs
● 2026-03-11 11:00:50
● 2026-03-25 21:09:58
●A2606:4700:3035::6815:8a92026-03-11 → 2026-03-25 · 2 obs
● 2026-03-11 11:00:50
● 2026-03-25 21:09:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netm.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net...-
sptr.netduke.ns.cloudflare.com, angelina.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.110

NS records: duke.ns.cloudflare.com, angelina.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sptr.net (unsigned zone)

⏱️ Timing

Total: 406ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.139.204, 104.21.8.169
AAAA22606:4700:3033::ac43:8bcc, 2606:4700:3035::6815:8a9
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

mail.sptr.net points to four IP numbers: 2606:4700:3033::ac43:8bcc, 2606:4700:3035::6815:8a9, 104.21.8.169 and 172.67.139.204.

Other host names, for instance md39.ru, www.ogl.org, dcf19.com, fosko.tv and sandbox.studio1.tech share IP numbers with mail.sptr.net.