opti.vn - robtex.com
opti.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3035::6815:4bc🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::ac43:9a28🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.4.188Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.154.40🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | mark.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b82🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mark.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c182🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | mark.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2182🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | mark.ns.cloudflare.com | ||||||
| A | 108.162.193.130🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mark.ns.cloudflare.com | ||||||
| A | 172.64.33.130🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mark.ns.cloudflare.com | ||||||
| A | 173.245.59.130🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mark.ns.cloudflare.com | ||||||
| NS | sunny.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:26a6🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sunny.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2a6🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | sunny.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22a6🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | sunny.ns.cloudflare.com | ||||||
| A | 108.162.194.166🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sunny.ns.cloudflare.com | ||||||
| A | 162.159.38.166Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sunny.ns.cloudflare.com | ||||||
| A | 172.64.34.166🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sunny.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.4.188, 172.67.154.40 | ||||||
| IPv6 hints | 2606:4700:3035::6815:4bc, 2606:4700:3036::ac43:9a28 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=80, name=cloudflare-ech.com | ||||||
| SOA | mark.ns.cloudflare.comdns@cloudflare.com serial=2403030791 | ||||||
vn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns-master.vnnic.vn ⭐ | ||||||
| NS | a.dns-servers.vn | ||||||
| NS | b.dns-servers.vn | ||||||
| NS | c.dns-servers.vn | ||||||
| NS | d.dns-servers.vn | ||||||
| NS | e.dns-servers.vn | ||||||
| NS | f.dns-servers.vn | ||||||
| NS | g.dns-servers.vn | ||||||
| NS | h.dns-servers.vn | ||||||
| SOA | dns-master.vnnic.vnpostmaster@vnnic.vn serial=2030753533 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSmark.ns.cloudflare.com2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 21:06:34
●NSsunny.ns.cloudflare.com2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 21:06:34
●A104.21.4.1882026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 21:06:34
●A172.67.154.402026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 21:06:34
●A2606:4700:3035::6815:4bc2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 21:06:34
●A2606:4700:3036::ac43:9a282026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 21:06:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | c.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn, a.dns-servers.vn... | - |
| opti.vn | sunny.ns.cloudflare.com, mark.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.59.130
NS records: sunny.ns.cloudflare.com, mark.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for opti.vn (unsigned zone)
⏱️ Timing
Total: 1003ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.4.188, 172.67.154.40 |
| AAAA | 2 | 2606:4700:3036::ac43:9a28, 2606:4700:3035::6815:4bc |
| NS | 2 | mark.ns.cloudflare.com, sunny.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | mark.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
opti.vn maps to four IP numbers: 2606:4700:3035::6815:4bc, 2606:4700:3036::ac43:9a28, 104.21.4.188 and 172.67.154.40.
Other host names, for instance des-defender.pro, bitcoin-edge.org, www.flekkefest.net, niftel.com and drama.aracin.net share IP numbers with opti.vn.
Name Servers
Two name servers mark.ns.cloudflare.com and sunny.ns.cloudflare.com handle delegation for opti.vn.
opti.vn uses the same name server setup as other domains, for example f168-dangnhap.com, thammymat.com.vn, getngo.vn, khacdauviettin.vn and tuoitrehoavang.vn.
opti.vn partially shares name servers with other domains; examples include corona-kinoplex.de, jdoi.pw, camilolozano.com, plasifan.com and vivopower.net.au.
These name servers are often used with the name servers sullivan.ns.cloudflare.com and princess.ns.cloudflare.com.
Host names with six IP numbers: mark.ns.cloudflare.com points to: 2606:4700:58::adf5:3b82, 2803:f800:50::6ca2:c182, 2a06:98c1:50::ac40:2182, 108.162.193.130, 172.64.33.130 and 173.245.59.130; sunny.ns.cloudflare.com points to: 2606:4700:50::a29f:26a6, 2803:f800:50::6ca2:c2a6, 2a06:98c1:50::ac40:22a6, 108.162.194.166, 162.159.38.166 and 172.64.34.166.