mail.opensyllabusproject.org - dns.ninja

mail.opensyllabusproject.org

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:9a2b🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:4bf🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.4.191Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.154.43🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.4.191, 172.67.154.43
IPv6 hints2606:4700:3033::ac43:9a2b, 2606:4700:3036::6815:4bf
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=5, name=cloudflare-ech.com

opensyllabusproject.org

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:9a2b🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:4bf🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.4.191Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.154.43🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSaida.ns.cloudflare.com ⭐
NSjonah.ns.cloudflare.com
MX_dc-mx.8441bfe80f53.opensyllabusproject.org ⭐
TXT3lrsvokeovkuk0219gdunr9jbs
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.4.191, 172.67.154.43
IPv6 hints2606:4700:3033::ac43:9a2b, 2606:4700:3036::6815:4bf
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=5, name=cloudflare-ech.com
SOAaida.ns.cloudflare.comdns@cloudflare.com serial=2406646726
WOT: SAFE (66/100)
WOT: UNKNOWN (83/100)

Previously MX for

opensyllabusproject.org

Same first word

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DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026A104.21.4.191172.67.154.432606:4700:3033::ac43:9a2b2606:4700:3036::6815:4bf216.70.64.190
●A104.21.4.1912026-06-28 → 2026-06-28 · 2 obs
○ 2016-11-08 00:04:48
● 2026-06-28 19:25:38
●A172.67.154.432026-06-28 → 2026-06-28 · 2 obs
○ 2016-11-08 00:04:48
● 2026-06-28 19:25:38
○A216.70.64.1902015-06-03 → 2016-11-08 · 3 obs
● 2015-06-03 19:02:34
● 2016-11-08 00:04:48
○ 2026-06-28 19:25:38
●A2606:4700:3033::ac43:9a2b2026-06-28 → 2026-06-28 · 2 obs
○ 2016-11-08 00:04:48
● 2026-06-28 19:25:38
●A2606:4700:3036::6815:4bf2026-06-28 → 2026-06-28 · 2 obs
○ 2016-11-08 00:04:48
● 2026-06-28 19:25:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
opensyllabusproject.orgaida.ns.cloudflare.com, jonah.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.58

NS records: aida.ns.cloudflare.com, jonah.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for opensyllabusproject.org (unsigned zone)

⏱️ Timing

Total: 684ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.154.43, 104.21.4.191
AAAA22606:4700:3033::ac43:9a2b, 2606:4700:3036::6815:4bf
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

mail.opensyllabusproject.org has four IP addresses: 104.21.4.191, 172.67.154.43, 2606:4700:3033::ac43:9a2b and 2606:4700:3036::6815:4bf.

Two other host names, along with bensonyeungyl.com, votekarl.com and c17b3f0b971c.sudrak.com, also share IP numbers with mail.opensyllabusproject.org.