fibcourse.quest - robtex.com
fibcourse.quest
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3032::ac43:8ca4🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::6815:46f0🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.70.240Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.140.164🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | aria.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3a44🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | aria.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c044🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | aria.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2044🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | aria.ns.cloudflare.com | ||||||
| A | 108.162.192.68🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | aria.ns.cloudflare.com | ||||||
| A | 172.64.32.68🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | aria.ns.cloudflare.com | ||||||
| A | 173.245.58.68🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | aria.ns.cloudflare.com | ||||||
| NS | mario.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3bcb🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mario.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1cb🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | mario.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21cb🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | mario.ns.cloudflare.com | ||||||
| A | 108.162.193.203🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mario.ns.cloudflare.com | ||||||
| A | 172.64.33.203🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mario.ns.cloudflare.com | ||||||
| A | 173.245.59.203🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mario.ns.cloudflare.com | ||||||
| TXT | google-site-verification=o4ccQ3XV03O9YGPPwmy0ZQMOooGwNmBVo-YUMUzMhj4 | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.70.240, 172.67.140.164 | ||||||
| IPv6 hints | 2606:4700:3032::ac43:8ca4, 2606:4700:3035::6815:46f0 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=183, name=cloudflare-ech.com | ||||||
| SOA | aria.ns.cloudflare.comdns@cloudflare.com serial=2407742323 | ||||||
quest
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns0.centralnic.net ⭐ | ||||||
| NS | a-cnic.nic.quest | ||||||
| NS | b-cnic.nic.quest | ||||||
| NS | c-cnic.nic.quest | ||||||
| NS | d-cnic.nic.quest | ||||||
| SOA | ns0.centralnic.nethostmaster@centralnic.net serial=1783281168 | ||||||
Same first word
Similar names
DNS History
8 records (6 active, 2 former)
●NSaria.ns.cloudflare.com2026-05-12 → 2026-07-05 · 2 obs
● 2026-07-05 19:54:30
●NSmario.ns.cloudflare.com2026-05-12 → 2026-07-05 · 2 obs
● 2026-07-05 19:54:30
●A104.21.70.2402026-05-12 → 2026-07-05 · 2 obs
● 2026-07-05 19:54:30
●A172.67.140.1642026-05-12 → 2026-07-05 · 2 obs
● 2026-07-05 19:54:30
○A2606:4700:3030::6815:46f02026-05-12 → 2026-05-12 · 3 obs
○ 2026-06-30 19:26:56
○ 2026-07-05 19:54:30
○A2606:4700:3031::ac43:8ca42026-05-12 → 2026-05-12 · 3 obs
○ 2026-06-30 19:26:56
○ 2026-07-05 19:54:30
●A2606:4700:3032::ac43:8ca42026-06-30 → 2026-07-05 · 3 obs
● 2026-06-30 19:26:56
● 2026-07-05 19:54:30
●A2606:4700:3035::6815:46f02026-06-30 → 2026-07-05 · 3 obs
● 2026-06-30 19:26:56
● 2026-07-05 19:54:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| quest | c-cnic.nic.quest, d-cnic.nic.quest, a-cnic.nic.quest, b-cnic.nic.quest | 8 records |
| fibcourse.quest | mario.ns.cloudflare.com, aria.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.33.203
NS records: mario.ns.cloudflare.com, aria.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for fibcourse.quest (unsigned zone)
⏱️ Timing
Total: 1103ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.70.240, 172.67.140.164 |
| AAAA | 2 | 2606:4700:3035::6815:46f0, 2606:4700:3032::ac43:8ca4 |
| NS | 2 | aria.ns.cloudflare.com, mario.ns.cloudflare.com |
| TXT | 1 | google-site-verification=o4ccQ3XV03O9YGP |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | aria.ns.cloudflare.com dns.cloudflare.co |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (d-cnic.nic.quest, c-cnic.nic.quest, b-cnic.nic.quest...)
Analysis
IP Addresses
fibcourse.quest directs to four IP numbers, which are 104.21.70.240, 172.67.140.164, 2606:4700:3032::ac43:8ca4 and 2606:4700:3035::6815:46f0.
Two other host names, along with toto80rut.site, lockandeporr.com and achetez-grandnancy.fr, also share IP numbers with fibcourse.quest.
Name Servers
DNS delegation for fibcourse.quest points to two name servers: aria.ns.cloudflare.com and mario.ns.cloudflare.com.
fibcourse.quest shares its NS records with other domains, for example ocsport.de, colibrary.zone, novacoop.it and two others.
At least some of fibcourse.quest's name servers are shared with other domains, for example wallis2000.co.uk, zenacrown.com, eaglebst.com and two more.
These name servers tend to be used in conjunction with the name servers nataly.ns.cloudflare.com.
DNS names with 6 IP addresses:
aria.ns.cloudflare.com has IP addresses 108.162.192.68, 172.64.32.68 and 173.245.58.68, plus 3 other.
mario.ns.cloudflare.com has IP addresses 108.162.193.203, 172.64.33.203 and 173.245.59.203, plus 3 other.