sk4u.ru - robtex.com
sk4u.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::6815:4b3e🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::ac43:d75e🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.75.62Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.215.94🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | aaden.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2c5c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | aaden.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c35c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | aaden.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:235c🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | aaden.ns.cloudflare.com | ||||||
| A | 108.162.195.92🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | aaden.ns.cloudflare.com | ||||||
| A | 162.159.44.92Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | aaden.ns.cloudflare.com | ||||||
| A | 172.64.35.92🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | aaden.ns.cloudflare.com | ||||||
| NS | liv.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3abc🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | liv.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0bc🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | liv.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20bc🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | liv.ns.cloudflare.com | ||||||
| A | 108.162.192.188🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | liv.ns.cloudflare.com | ||||||
| A | 172.64.32.188🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | liv.ns.cloudflare.com | ||||||
| A | 173.245.58.188🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | liv.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.75.62, 172.67.215.94 | ||||||
| IPv6 hints | 2606:4700:3031::6815:4b3e, 2606:4700:3033::ac43:d75e | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=121, name=cloudflare-ech.com | ||||||
| SOA | aaden.ns.cloudflare.comdns@cloudflare.com serial=2399331362 | ||||||
ru
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.ripn.net ⭐ | ||||||
| NS | b.dns.ripn.net | ||||||
| NS | d.dns.ripn.net | ||||||
| NS | e.dns.ripn.net | ||||||
| NS | f.dns.ripn.net | ||||||
| SOA | a.dns.ripn.nethostmaster@ripn.net serial=4068621 | ||||||
Same first word
Similar names
s4ku.com |
4kus.ru |
k4us.net |
s4ku.net |
us4k.com |
4sku.ru |
us4k.org |
4usk.com |
uks4.org |
s4uk.com |
usk4.lublin.pl |
su4k.com |
k4us.com |
sku4.com |
ks4u.com |
k4us.com.br |
ks4u.net |
ks4u.de |
4sku.com |
DNS History
6 records (6 active, 0 former)
●NSaaden.ns.cloudflare.com2026-03-30 → 2026-04-23 · 2 obs
● 2026-04-23 17:08:58
●NSliv.ns.cloudflare.com2026-03-30 → 2026-04-23 · 2 obs
● 2026-04-23 17:08:58
●A104.21.75.622026-03-30 → 2026-04-23 · 2 obs
● 2026-04-23 17:08:58
●A172.67.215.942026-03-30 → 2026-04-23 · 2 obs
● 2026-04-23 17:08:58
●A2606:4700:3031::6815:4b3e2026-03-30 → 2026-04-23 · 2 obs
● 2026-04-23 17:08:58
●A2606:4700:3033::ac43:d75e2026-03-30 → 2026-04-23 · 2 obs
● 2026-04-23 17:08:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net... | - |
| sk4u.ru | liv.ns.cloudflare.com, aaden.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.195.92
NS records: liv.ns.cloudflare.com, aaden.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sk4u.ru (unsigned zone)
⏱️ Timing
Total: 809ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.215.94, 104.21.75.62 |
| AAAA | 2 | 2606:4700:3031::6815:4b3e, 2606:4700:3033::ac43:d75e |
| NS | 2 | aaden.ns.cloudflare.com, liv.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | aaden.ns.cloudflare.com dns.cloudflare.c |
Analysis
IP Addresses
sk4u.ru maps to four IP numbers: 2606:4700:3031::6815:4b3e, 2606:4700:3033::ac43:d75e, 104.21.75.62 and 172.67.215.94.
Other host names, for instance discountwarehousetools.com, apreofresh.biz, ifnflpo.run, www.coradrive.ro and casinodigitalmedia.co.uk share IP numbers with sk4u.ru.
Name Servers
Two name servers aaden.ns.cloudflare.com and liv.ns.cloudflare.com handle delegation for sk4u.ru.
sk4u.ru uses the same name server setup as other domains, for example bookreading2024.net, tpsbest.com, wrestlingactionshop.de, ncura.edu and metalspinningmachine.com.
sk4u.ru partially shares name servers with other domains; examples include moccup.com, utssoft.com, yaeb19.ru, dent-line.com and silverkeyhk.com.
These name servers are often used with the name servers brenna.ns.cloudflare.com and asa.ns.cloudflare.com.
Host names with six IP numbers: aaden.ns.cloudflare.com points to: 2606:4700:58::a29f:2c5c, 2803:f800:50::6ca2:c35c, 2a06:98c1:50::ac40:235c, 108.162.195.92, 162.159.44.92 and 172.64.35.92; liv.ns.cloudflare.com points to: 2606:4700:50::adf5:3abc, 2803:f800:50::6ca2:c0bc, 2a06:98c1:50::ac40:20bc, 108.162.192.188, 172.64.32.188 and 173.245.58.188.