vqcyrd.courses - robtex.com
vqcyrd.courses
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3035::6815:3005🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::ac43:af27🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.48.5Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.175.39🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | brian.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2c24🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | brian.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c324🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | brian.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2324🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | brian.ns.cloudflare.com | ||||||
| A | 108.162.195.36🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | brian.ns.cloudflare.com | ||||||
| A | 162.159.44.36Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | brian.ns.cloudflare.com | ||||||
| A | 172.64.35.36🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | brian.ns.cloudflare.com | ||||||
| NS | donna.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3a97🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | donna.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c097🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | donna.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2097🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | donna.ns.cloudflare.com | ||||||
| A | 108.162.192.151🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | donna.ns.cloudflare.com | ||||||
| A | 172.64.32.151🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | donna.ns.cloudflare.com | ||||||
| A | 173.245.58.151🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | donna.ns.cloudflare.com | ||||||
| TXT | google-site-verification=F_ThXhioh8DX3zhPPz0KzZSsUrXzTcK_jNpwKuLvXBA | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.48.5, 172.67.175.39 | ||||||
| IPv6 hints | 2606:4700:3035::6815:3005, 2606:4700:3037::ac43:af27 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=130, name=cloudflare-ech.com | ||||||
| SOA | brian.ns.cloudflare.comdns@cloudflare.com serial=2411650131 | ||||||
courses
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.courses ⭐ | ||||||
| NS | b.nic.courses | ||||||
| NS | c.nic.courses | ||||||
| NS | x.nic.courses | ||||||
| NS | y.nic.courses | ||||||
| NS | z.nic.courses | ||||||
| SOA | a.nic.coursesadmin@tldns.godaddy serial=1786629202 | ||||||
⚠️ On DNS blocklist: spam-tlds
Same first word
vqcyrd.courses |
DNS History
6 records (6 active, 0 former)
●NSbrian.ns.cloudflare.com2026-07-26 → 2026-08-13 · 2 obs
● 2026-08-13 14:34:16
●NSdonna.ns.cloudflare.com2026-07-26 → 2026-08-13 · 2 obs
● 2026-08-13 14:34:16
●A104.21.48.52026-07-26 → 2026-08-13 · 2 obs
● 2026-08-13 14:34:16
●A172.67.175.392026-07-26 → 2026-08-13 · 2 obs
● 2026-08-13 14:34:16
●A2606:4700:3035::6815:30052026-07-26 → 2026-08-13 · 2 obs
● 2026-08-13 14:34:16
●A2606:4700:3037::ac43:af272026-07-26 → 2026-08-13 · 2 obs
● 2026-08-13 14:34:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| courses | x.nic.courses, a.nic.courses, b.nic.courses, c.nic.courses... | 12 records |
| vqcyrd.courses | donna.ns.cloudflare.com, brian.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.195.36
NS records: donna.ns.cloudflare.com, brian.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for vqcyrd.courses (unsigned zone)
⏱️ Timing
Total: 617ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.175.39, 104.21.48.5 |
| AAAA | 2 | 2606:4700:3035::6815:3005, 2606:4700:3037::ac43:af27 |
| NS | 2 | brian.ns.cloudflare.com, donna.ns.cloudflare.com |
| TXT | 1 | google-site-verification=F_ThXhioh8DX3zh |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | brian.ns.cloudflare.com dns.cloudflare.c |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (z.nic.courses, y.nic.courses, x.nic.courses...)
Analysis
IP Addresses
vqcyrd.courses has four IP addresses: 104.21.48.5, 172.67.175.39, 2606:4700:3035::6815:3005 and 2606:4700:3037::ac43:af27.
Two other host names, along with www.aclg.cn, erpin.com.tr and servicos.semobjp.pb.gov.br, also share IP numbers with vqcyrd.courses.
Name Servers
vqcyrd.courses has two authoritative name servers — brian.ns.cloudflare.com and donna.ns.cloudflare.com.
vqcyrd.courses shares its NS records with other domains, for example edarda.com, nntx.top, nntc.top and two others.
vqcyrd.courses partially shares its NS delegation with several other domains, including arbeitsschutz-schulen-nds.de, gibran.id, 018835.com and two others.
The name servers elma.ns.cloudflare.com, bayan.ns.cloudflare.com, moura.ns.cloudflare.com and nash.ns.cloudflare.com are often found in use alongside these name servers.
DNS names with 6 IP addresses:
brian.ns.cloudflare.com points to 108.162.195.36, 162.159.44.36, 172.64.35.36 and 3 other IP addresses.
donna.ns.cloudflare.com points to 108.162.192.151, 172.64.32.151, 173.245.58.151 and 3 other IP addresses.