smtp.it-web.jp - robtex.com

smtp.it-web.jp

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:8b0a🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:28d9🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.40.217Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.139.10🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.40.217, 172.67.139.10
IPv6 hints2606:4700:3033::ac43:8b0a, 2606:4700:3034::6815:28d9
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=0, name=cloudflare-ech.com

it-web.jp

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:8b0a🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:28d9🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.40.217Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.139.10🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSaaden.ns.cloudflare.com ⭐
NSrosalyn.ns.cloudflare.com
MXsv15061.xserver.jp ⭐
TXTv=spf1 +a:sv15061.xserver.jp +a:it-web.jp +mx include:spf.sender.xserver.jp ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.40.217, 172.67.139.10
IPv6 hints2606:4700:3033::ac43:8b0a, 2606:4700:3034::6815:28d9
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=0, name=cloudflare-ech.com
SOAaaden.ns.cloudflare.comdns@cloudflare.com serial=2408182432
WOT: SAFE (60/100)

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DNS History

7 records (4 active, 3 former)

20162017201820192020202120222023202420252026A104.21.40.217172.67.139.102606:4700:3033::ac43:8b0a2606:4700:3034::6815:28d9216.230.254.262606:4700:3033::6815:28d92606:4700:3035::ac43:8b0a
●A104.21.40.2172026-03-06 → 2026-07-24 · 3 obs
○ 2018-08-25 18:27:08
● 2026-03-06 10:38:32
● 2026-07-24 16:42:40
●A172.67.139.102026-03-06 → 2026-07-24 · 3 obs
○ 2018-08-25 18:27:08
● 2026-03-06 10:38:32
● 2026-07-24 16:42:40
○A216.230.254.262015-06-05 → 2016-04-30 · 4 obs
● 2015-06-05 22:17:40
● 2016-04-30 17:41:20
○ 2018-08-25 18:27:08
○ 2026-07-24 16:42:40
○A2606:4700:3033::6815:28d92026-03-06 → 2026-06-15 · 4 obs
○ 2018-08-25 18:27:08
● 2026-03-06 10:38:32
● 2026-06-15 10:30:44
○ 2026-07-24 16:42:40
●A2606:4700:3033::ac43:8b0a2026-07-24 → 2026-07-24 · 2 obs
○ 2026-06-15 10:30:44
● 2026-07-24 16:42:40
●A2606:4700:3034::6815:28d92026-07-24 → 2026-07-24 · 2 obs
○ 2026-06-15 10:30:44
● 2026-07-24 16:42:40
○A2606:4700:3035::ac43:8b0a2026-03-06 → 2026-06-15 · 4 obs
○ 2018-08-25 18:27:08
● 2026-03-06 10:38:32
● 2026-06-15 10:30:44
○ 2026-07-24 16:42:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpe.dns.jp, c.dns.jp, b.dns.jp, h.dns.jp...-
it-web.jpaaden.ns.cloudflare.com, rosalyn.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.194.59

NS records: aaden.ns.cloudflare.com, rosalyn.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for it-web.jp (unsigned zone)

⏱️ Timing

Total: 1107ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.139.10, 104.21.40.217
AAAA22606:4700:3033::ac43:8b0a, 2606:4700:3034::6815:28d9
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

smtp.it-web.jp points to the four IP addresses 104.21.40.217, 172.67.139.10, 2606:4700:3033::ac43:8b0a and 2606:4700:3034::6815:28d9.

feji.in, parkcommunityah.com, tsposts.in and two other host names share IP numbers with smtp.it-web.jp.