tutorials.guide - dns.ninja
tutorials.guide
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::6815:1afc🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::ac43:8bc1🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.26.252Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.139.193🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | duke.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b6e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c16e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:216e🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| A | 108.162.193.110🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| A | 172.64.33.110🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| A | 173.245.59.110🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| NS | nadia.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3acf🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nadia.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0cf🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | nadia.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20cf🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | nadia.ns.cloudflare.com | ||||||
| A | 108.162.192.207🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nadia.ns.cloudflare.com | ||||||
| A | 172.64.32.207🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nadia.ns.cloudflare.com | ||||||
| A | 173.245.58.207🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nadia.ns.cloudflare.com | ||||||
| MX | route3.mx.cloudflare.net ⭐ | ||||||
| A | 2606:4700:f5::11🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::12🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::13🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| A | 162.159.205.23Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| A | 162.159.205.24Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| A | 162.159.205.25Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route3.mx.cloudflare.net | ||||||
| MX | route1.mx.cloudflare.net(100) | ||||||
| A | 2606:4700:f5::b🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::c🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::d🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| A | 162.159.205.11Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| A | 162.159.205.12Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| A | 162.159.205.13Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route1.mx.cloudflare.net | ||||||
| MX | route2.mx.cloudflare.net(100) | ||||||
| A | 2606:4700:f5::e🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::f🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| A | 2606:4700:f5::10🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| A | 162.159.205.17Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| A | 162.159.205.18Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| A | 162.159.205.19Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | route2.mx.cloudflare.net | ||||||
| TXT | google-site-verification=7MyhvDmKKGeZJKIxfg_PJe4rXOjKiYlexk4ai6xjDmQ | ||||||
| TXT | v=spf1 include:_spf.mx.cloudflare.net ~all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.26.252, 172.67.139.193 | ||||||
| IPv6 hints | 2606:4700:3031::6815:1afc, 2606:4700:3035::ac43:8bc1 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=2, name=cloudflare-ech.com | ||||||
| SOA | duke.ns.cloudflare.comdns@cloudflare.com serial=2405951529 | ||||||
guide
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | v0n0.nic.guide ⭐ | ||||||
| NS | v0n1.nic.guide | ||||||
| NS | v0n2.nic.guide | ||||||
| NS | v0n3.nic.guide | ||||||
| NS | v2n0.nic.guide | ||||||
| NS | v2n1.nic.guide | ||||||
| SOA | v0n0.nic.guidehostmaster@donuts.email serial=1781425569 | ||||||
Same first word
Similar names
DNS History
13 records (9 active, 4 former)
●NSduke.ns.cloudflare.com2026-02-16 → 2026-06-14 · 3 obs
● 2026-02-16 11:34:38
● 2026-06-14 08:38:16
●NSnadia.ns.cloudflare.com2026-02-16 → 2026-06-14 · 3 obs
● 2026-02-16 11:34:38
● 2026-06-14 08:38:16
○NSns1.sedoparking.com2016-12-10 → 2017-05-17 · 4 obs
● 2017-05-17 05:50:28
○ 2026-02-16 11:34:38
○ 2026-06-14 08:38:16
○NSns2.sedoparking.com2016-12-10 → 2017-05-17 · 4 obs
● 2017-05-17 05:50:28
○ 2026-02-16 11:34:38
○ 2026-06-14 08:38:16
○MXlocalhost2016-12-10 → 2017-05-17 · 4 obs
● 2017-05-17 05:50:28
○ 2026-02-16 11:34:38
○ 2026-06-14 08:38:16
●MXroute1.mx.cloudflare.net2026-02-16 → 2026-06-14 · 3 obs
● 2026-02-16 11:34:38
● 2026-06-14 08:38:16
●MXroute2.mx.cloudflare.net2026-02-16 → 2026-06-14 · 3 obs
● 2026-02-16 11:34:38
● 2026-06-14 08:38:16
●MXroute3.mx.cloudflare.net2026-02-16 → 2026-06-14 · 3 obs
● 2026-02-16 11:34:38
● 2026-06-14 08:38:16
●A104.21.26.2522026-02-16 → 2026-06-14 · 3 obs
● 2026-02-16 11:34:38
● 2026-06-14 08:38:16
●A172.67.139.1932026-02-16 → 2026-06-14 · 3 obs
● 2026-02-16 11:34:38
● 2026-06-14 08:38:16
●A2606:4700:3031::6815:1afc2026-02-16 → 2026-06-14 · 3 obs
● 2026-02-16 11:34:38
● 2026-06-14 08:38:16
●A2606:4700:3035::ac43:8bc12026-02-16 → 2026-06-14 · 3 obs
● 2026-02-16 11:34:38
● 2026-06-14 08:38:16
○A72.52.4.1192016-12-10 → 2017-05-17 · 4 obs
● 2017-05-17 05:50:28
○ 2026-02-16 11:34:38
○ 2026-06-14 08:38:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| guide | v0n0.nic.guide, v0n1.nic.guide, v0n2.nic.guide, v0n3.nic.guide... | - |
| tutorials.guide | nadia.ns.cloudflare.com, duke.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.32.207
NS records: nadia.ns.cloudflare.com, duke.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tutorials.guide (unsigned zone)
⏱️ Timing
Total: 458ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.26.252, 172.67.139.193 |
| AAAA | 2 | 2606:4700:3035::ac43:8bc1, 2606:4700:3031::6815:1afc |
| NS | 2 | duke.ns.cloudflare.com, nadia.ns.cloudflare.com |
| MX | 3 | route1.mx.cloudflare.net (pri: 100), route2.mx.cloudflare.net (pri: 100)... |
| TXT | 2 | google-site-verification=7MyhvDmKKGeZJKI, v=spf1 include:_spf.mx.cloudflare.net ~a |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | duke.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
tutorials.guide points to four IP numbers: 104.21.26.252, 172.67.139.193, 2606:4700:3031::6815:1afc and 2606:4700:3035::ac43:8bc1.
Additional host names — adshubprime.top, tws1.tibaco.net, wljydg.75avventura.com and two others — share IP numbers with tutorials.guide.
Name Servers
The NS records for tutorials.guide delegate to duke.ns.cloudflare.com and nadia.ns.cloudflare.com.
tutorials.guide shares its name server setup with other domains, including robot-club.com, ios.com.ro, fwdlive.com and two others.
tutorials.guide partially shares its NS delegation with several other domains, including chvv.com, 092258.com, somanmedia.com and two others.
These name servers are regularly seen alongside dakota.ns.cloudflare.com and lakas.ns.cloudflare.com as name servers.
Host names with 6 IP numbers:
duke.ns.cloudflare.com maps to 108.162.193.110, 172.64.33.110, 173.245.59.110 and 3 additional IP addresses.
nadia.ns.cloudflare.com maps to 108.162.192.207, 172.64.32.207, 173.245.58.207 and 3 additional IP addresses.
Mail Servers
tutorials.guide uses three mail servers — route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.
tutorials.guide shares mail servers — at least in part — with other domains, including canadianamericanbeerfestival.com, kimsifter.com, brettpostin.com and two others.
Host names with 6 IP numbers:
route1.mx.cloudflare.net maps to 162.159.205.11, 162.159.205.12, 162.159.205.13 and 3 additional IP addresses.
route2.mx.cloudflare.net maps to 162.159.205.17, 162.159.205.18, 162.159.205.19 and 3 additional IP addresses.
route3.mx.cloudflare.net maps to 162.159.205.23, 162.159.205.24, 162.159.205.25 and 3 additional IP addresses.