mail.userdocs.ru - robtex.com

mail.userdocs.ru

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:de82🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:3613🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.54.19Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.222.130🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.54.19, 172.67.222.130
IPv6 hints2606:4700:3033::ac43:de82, 2606:4700:3036::6815:3613

userdocs.ru

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:de82🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:3613🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.54.19Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.222.130🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSkaiser.ns.cloudflare.com ⭐
NSmargot.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.54.19, 172.67.222.130
IPv6 hints2606:4700:3033::ac43:de82, 2606:4700:3036::6815:3613
SOAkaiser.ns.cloudflare.comdns@cloudflare.com serial=2397429576
WOT: SAFE (61/100)
WOT: SAFE (70/100)

Previously MX for

userdocs.ru

Same first word

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DNS History

8 records (4 active, 4 former)

20162017201820192020202120222023202420252026A104.21.54.19172.67.222.1302606:4700:3033::ac43:de822606:4700:3036::6815:3613172.64.80.12606:4700:130:436c:6f75:6466:6c61:72655.9.117.1765.9.154.210
●A104.21.54.192026-02-24 → 2026-04-13 · 6 obs
○ 2016-09-13 16:16:50
● 2026-02-24 04:35:36
● 2026-03-12 16:33:12
○ 2026-03-14 15:42:40
● 2026-04-06 11:06:42
● 2026-04-13 18:36:36
○A172.64.80.12026-03-14 → 2026-03-14 · 4 obs
○ 2026-03-12 16:33:12
● 2026-03-14 15:42:40
○ 2026-04-06 11:06:42
○ 2026-04-13 18:36:36
●A172.67.222.1302026-02-24 → 2026-04-13 · 6 obs
○ 2016-09-13 16:16:50
● 2026-02-24 04:35:36
● 2026-03-12 16:33:12
○ 2026-03-14 15:42:40
● 2026-04-06 11:06:42
● 2026-04-13 18:36:36
○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-14 → 2026-03-14 · 4 obs
○ 2026-03-12 16:33:12
● 2026-03-14 15:42:40
○ 2026-04-06 11:06:42
○ 2026-04-13 18:36:36
●A2606:4700:3033::ac43:de822026-02-24 → 2026-04-13 · 6 obs
○ 2016-09-13 16:16:50
● 2026-02-24 04:35:36
● 2026-03-12 16:33:12
○ 2026-03-14 15:42:40
● 2026-04-06 11:06:42
● 2026-04-13 18:36:36
●A2606:4700:3036::6815:36132026-02-24 → 2026-04-13 · 6 obs
○ 2016-09-13 16:16:50
● 2026-02-24 04:35:36
● 2026-03-12 16:33:12
○ 2026-03-14 15:42:40
● 2026-04-06 11:06:42
● 2026-04-13 18:36:36
○A5.9.117.1762015-06-21 → 2016-01-19 · 4 obs
● 2015-06-21 01:38:08
● 2016-01-19 05:40:14
○ 2016-04-11 23:38:20
○ 2026-04-13 18:36:36
○A5.9.154.2102016-04-11 → 2016-09-13 · 5 obs
○ 2016-01-19 05:40:14
● 2016-04-11 23:38:20
● 2016-09-13 16:16:50
○ 2026-02-24 04:35:36
○ 2026-04-13 18:36:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
rua.dns.ripn.net, d.dns.ripn.net, f.dns.ripn.net, b.dns.ripn.net...-
userdocs.rukaiser.ns.cloudflare.com, margot.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.38.167

NS records: kaiser.ns.cloudflare.com, margot.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for userdocs.ru (unsigned zone)

⏱️ Timing

Total: 574ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.54.19, 172.67.222.130
AAAA22606:4700:3036::6815:3613, 2606:4700:3033::ac43:de82
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

Four IP numbers are pointed to by mail.userdocs.ru: 2606:4700:3033::ac43:de82, 2606:4700:3036::6815:3613, 104.21.54.19 and 172.67.222.130.

other host names including www.spiderworks.in, www.bmsltd.ie, caswel.com, alejandromoreno.net and pr.ly share IP numbers with mail.userdocs.ru.