exam30.online - robtex.com
exam30.online
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3032::ac43:d195🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::6815:4d9d🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.77.157Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.209.149🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | arch.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b44🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | arch.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c144🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | arch.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2144🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | arch.ns.cloudflare.com | ||||||
| A | 108.162.193.68🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | arch.ns.cloudflare.com | ||||||
| A | 172.64.33.68🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | arch.ns.cloudflare.com | ||||||
| A | 173.245.59.68🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | arch.ns.cloudflare.com | ||||||
| NS | dorthy.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3af9🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dorthy.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0f9🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | dorthy.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20f9🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | dorthy.ns.cloudflare.com | ||||||
| A | 108.162.192.249🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dorthy.ns.cloudflare.com | ||||||
| A | 172.64.32.249🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dorthy.ns.cloudflare.com | ||||||
| A | 173.245.58.249🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dorthy.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.77.157, 172.67.209.149 | ||||||
| IPv6 hints | 2606:4700:3032::ac43:d195, 2606:4700:3033::6815:4d9d | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=26, name=cloudflare-ech.com | ||||||
| SOA | arch.ns.cloudflare.comdns@cloudflare.com serial=2409596278 | ||||||
online
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns01.trs-dns.com ⭐ | ||||||
| NS | ns.trs-dns.com | ||||||
| NS | ns01.trs-dns.net | ||||||
| NS | ns10.trs-dns.info | ||||||
| NS | ns10.trs-dns.org | ||||||
| SOA | ns.trs-dns.comtrs-ops@tucows.com serial=1784892210 | ||||||
Same first word
exam30.online |
DNS History
8 records (6 active, 2 former)
●NSarch.ns.cloudflare.com2026-04-08 → 2026-07-24 · 2 obs
● 2026-07-24 12:11:16
●NSdorthy.ns.cloudflare.com2026-04-08 → 2026-07-24 · 2 obs
● 2026-07-24 12:11:16
●A104.21.77.1572026-04-08 → 2026-07-24 · 2 obs
● 2026-07-24 12:11:16
●A172.67.209.1492026-04-08 → 2026-07-24 · 2 obs
● 2026-07-24 12:11:16
●A2606:4700:3032::ac43:d1952026-06-26 → 2026-07-24 · 3 obs
● 2026-06-26 21:16:32
● 2026-07-24 12:11:16
●A2606:4700:3033::6815:4d9d2026-06-26 → 2026-07-24 · 3 obs
● 2026-06-26 21:16:32
● 2026-07-24 12:11:16
○A2606:4700:3036::ac43:d1952026-04-08 → 2026-06-16 · 4 obs
● 2026-06-16 09:07:28
○ 2026-06-26 21:16:32
○ 2026-07-24 12:11:16
○A2606:4700:3037::6815:4d9d2026-04-08 → 2026-06-16 · 4 obs
● 2026-06-16 09:07:28
○ 2026-06-26 21:16:32
○ 2026-07-24 12:11:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| online | ns01.trs-dns.com, ns10.trs-dns.org, ns01.trs-dns.net, ns10.trs-dns.info | - |
| exam30.online | dorthy.ns.cloudflare.com, arch.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.58.249
NS records: dorthy.ns.cloudflare.com, arch.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for exam30.online (unsigned zone)
⏱️ Timing
Total: 204ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.209.149, 104.21.77.157 |
| AAAA | 2 | 2606:4700:3032::ac43:d195, 2606:4700:3033::6815:4d9d |
| NS | 2 | arch.ns.cloudflare.com, dorthy.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | arch.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
exam30.online resolves to four IP addresses: 104.21.77.157, 172.67.209.149, 2606:4700:3032::ac43:d195 and 2606:4700:3033::6815:4d9d.
www.kolkata.shiksha, liffey.com.br, f8bet25.win and two other host names share IP numbers with exam30.online.
Name Servers
Two name servers handle the delegation for exam30.online: arch.ns.cloudflare.com and dorthy.ns.cloudflare.com.
exam30.online uses the same name servers as several other domains — among them dxd.ink, dodoex.io, exam50.online and two more.
exam30.online partially shares its NS delegation with several other domains, including al-taawon.com, ilaig.com, wifibdsoft.com and two others.
These name servers are regularly seen alongside rayden.ns.cloudflare.com and abdullah.ns.cloudflare.com as name servers.
Hostnames that resolve to 6 IP addresses:
arch.ns.cloudflare.com resolves to 108.162.193.68, 172.64.33.68 and 173.245.59.68 among others, with 3 other IP addresses in total.
dorthy.ns.cloudflare.com resolves to 108.162.192.249, 172.64.32.249 and 173.245.58.249 among others, with 3 other IP addresses in total.