ert21.com - robtex.com
ert21.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3032::6815:340a🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3034::ac43:c1e9🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.52.10Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.193.233🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | craig.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2cc0🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | craig.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c3c0🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | craig.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:23c0🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | craig.ns.cloudflare.com | ||||||
| A | 108.162.195.192🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | craig.ns.cloudflare.com | ||||||
| A | 162.159.44.192Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | craig.ns.cloudflare.com | ||||||
| A | 172.64.35.192🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | craig.ns.cloudflare.com | ||||||
| NS | kristin.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3ab5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | kristin.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0b5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | kristin.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20b5🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | kristin.ns.cloudflare.com | ||||||
| A | 108.162.192.181🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | kristin.ns.cloudflare.com | ||||||
| A | 172.64.32.181🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | kristin.ns.cloudflare.com | ||||||
| A | 173.245.58.181🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | kristin.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.52.10, 172.67.193.233 | ||||||
| IPv6 | 2606:4700:3032::6815:340a, 2606:4700:3034::ac43:c1e9 | ||||||
| SOA | craig.ns.cloudflare.comdns@cloudflare.com serial=2396991456 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1774562402 | ||||||
Same first word
ert21.com |
Similar names
DNS History
6 records (6 active, 0 former)
●NScraig.ns.cloudflare.com2026-03-08 → 2026-03-26 · 2 obs
● 2026-03-26 22:19:06
●NSkristin.ns.cloudflare.com2026-03-08 → 2026-03-26 · 2 obs
● 2026-03-26 22:19:06
●A104.21.52.102026-03-08 → 2026-03-26 · 2 obs
● 2026-03-26 22:19:06
●A172.67.193.2332026-03-08 → 2026-03-26 · 2 obs
● 2026-03-26 22:19:06
●A2606:4700:3032::6815:340a2026-03-08 → 2026-03-26 · 2 obs
● 2026-03-26 22:19:06
●A2606:4700:3034::ac43:c1e92026-03-08 → 2026-03-26 · 2 obs
● 2026-03-26 22:19:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | g.gtld-servers.net, e.gtld-servers.net, m.gtld-servers.net, c.gtld-servers.net... | - |
| ert21.com | kristin.ns.cloudflare.com, craig.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.195.192
NS records: kristin.ns.cloudflare.com, craig.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ert21.com (unsigned zone)
⏱️ Timing
Total: 133ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.193.233, 104.21.52.10 |
| AAAA | 2 | 2606:4700:3034::ac43:c1e9, 2606:4700:3032::6815:340a |
| NS | 2 | craig.ns.cloudflare.com, kristin.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | craig.ns.cloudflare.com dns.cloudflare.c |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (kristin.ns.cloudflare.com, kristin.ns.cloudflare.com, kristin.ns.cloudflare.com...)
Analysis
IP Addresses
ert21.com maps to four IP numbers: 2606:4700:3032::6815:340a, 2606:4700:3034::ac43:c1e9, 104.21.52.10 and 172.67.193.233.
Other host names, for instance celestebelle.com, aquabiom.sk, unika.co.uk, zgc-een.nss.com.tw and huataisport.com share IP numbers with ert21.com.
Name Servers
Two name servers craig.ns.cloudflare.com and kristin.ns.cloudflare.com handle delegation for ert21.com.
ert21.com uses the same name server setup as other domains, for example ert43.com, upwherewebelong.org.nz, 914523.com, trz58.com and ert11.com.
ert21.com partially shares name servers with other domains; examples include egytopup.com, hatchet.com.au, mctq.org, xandro.com and ytxnccq.com.
These name servers are often used with the name servers jessica.ns.cloudflare.com and kim.ns.cloudflare.com.
Host names with six IP numbers: craig.ns.cloudflare.com points to: 2606:4700:58::a29f:2cc0, 2803:f800:50::6ca2:c3c0, 2a06:98c1:50::ac40:23c0, 108.162.195.192, 162.159.44.192 and 172.64.35.192; kristin.ns.cloudflare.com points to: 2606:4700:50::adf5:3ab5, 2803:f800:50::6ca2:c0b5, 2a06:98c1:50::ac40:20b5, 108.162.192.181, 172.64.32.181 and 173.245.58.181.