mail.skff.org - robtex.com

mail.skff.org

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:4343🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:d823🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.67.67Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.216.35🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.67.67, 172.67.216.35
IPv6 hints2606:4700:3033::6815:4343, 2606:4700:3035::ac43:d823
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=119, name=cloudflare-ech.com

skff.org

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:4343🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:d823🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.67.67Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.216.35🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSkay.ns.cloudflare.com ⭐
NStrevor.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.67.67, 172.67.216.35
IPv6 hints2606:4700:3033::6815:4343, 2606:4700:3035::ac43:d823
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=119, name=cloudflare-ech.com
SOAkay.ns.cloudflare.comdns@cloudflare.com serial=2403253670

Previously MX for

skff.org

Same first word

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DNS History

5 records (4 active, 1 former)

2017201820192020202120222023202420252026A104.21.67.67172.67.216.352606:4700:3033::6815:43432606:4700:3035::ac43:d82391.236.136.147
●A104.21.67.672026-05-02 → 2026-05-09 · 3 obs
○ 2016-10-17 08:29:20
● 2026-05-02 17:43:48
● 2026-05-09 16:22:38
●A172.67.216.352026-05-02 → 2026-05-09 · 3 obs
○ 2016-10-17 08:29:20
● 2026-05-02 17:43:48
● 2026-05-09 16:22:38
●A2606:4700:3033::6815:43432026-05-02 → 2026-05-09 · 3 obs
○ 2016-10-17 08:29:20
● 2026-05-02 17:43:48
● 2026-05-09 16:22:38
●A2606:4700:3035::ac43:d8232026-05-02 → 2026-05-09 · 3 obs
○ 2016-10-17 08:29:20
● 2026-05-02 17:43:48
● 2026-05-09 16:22:38
○A91.236.136.1472016-10-09 → 2016-10-17 · 4 obs
● 2016-10-09 10:22:22
● 2016-10-17 08:29:20
○ 2026-05-02 17:43:48
○ 2026-05-09 16:22:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
skff.orgkay.ns.cloudflare.com, trevor.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.125

NS records: kay.ns.cloudflare.com, trevor.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for skff.org (unsigned zone)

⏱️ Timing

Total: 341ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.67.67, 172.67.216.35
AAAA22606:4700:3033::6815:4343, 2606:4700:3035::ac43:d823
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

mail.skff.org maps to four IP numbers: 2606:4700:3033::6815:4343, 2606:4700:3035::ac43:d823, 104.21.67.67 and 172.67.216.35.

other host names include yhglc.cn, 51hogo.com, hneck.com, decorello.it and renovus.in; they share IP numbers with mail.skff.org.