captcha.org - robtex.com
captcha.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 188.40.246.97🇩🇪 Hetzner188.40.0.0/16 HETZNER-RZ-FKS-BLK1 | ||||||
| PTR | a.dds.ro | ||||||
| NS | hydrogen.ns.hetzner.com ⭐ | ||||||
| A | 2a01:4f8:0:1::add:1098🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | hydrogen.ns.hetzner.com | ||||||
| A | 213.133.100.98🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | hydrogen.ns.hetzner.com | ||||||
| NS | helium.ns.hetzner.de | ||||||
| A | 2001:67c:192c::add:5🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | helium.ns.hetzner.de | ||||||
| A | 193.47.99.5🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| PTR | helium.ns.hetzner.de | ||||||
| NS | oxygen.ns.hetzner.com | ||||||
| A | 2a01:4f8:0:1::add:2992🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | oxygen.ns.hetzner.com | ||||||
| A | 88.198.229.192🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4 | ||||||
| PTR | oxygen.ns.hetzner.com | ||||||
| MX | mail.captcha.org ⭐ | ||||||
| A | 178.63.240.220🇩🇪 Hetzner178.63.0.0/16 HETZNER-RZ-FKS-BLK2 | ||||||
| PTR | static.220.240.63.178.clients.your-server.de | ||||||
| SOA | hydrogen.ns.hetzner.comdns@hetzner.com 2026-02-08 #0 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1773551953 | ||||||
rank #2499 in the tld
WOT: SAFE (63/100)
📈 Tranco rank: #101,088
Subdomains
Same first word
Similar names
pacchat.com |
pacatch.com |
achatpc.com |
cpachat.com |
pcachat.net |
catchap.com |
cathcap.com |
capchat.com |
chatcap.com |
chatcpa.com |
cpachat.net |
pcachat.com |
pcachat.fr |
chatcap.in |
achatpc.fr |
DNS History
8 records (5 active, 3 former)
●NShelium.ns.hetzner.de2026-03-11 → 2026-03-16 · 3 obs
● 2026-03-11 17:35:06
● 2026-03-16 10:13:20
●NShydrogen.ns.hetzner.com2026-03-11 → 2026-03-16 · 3 obs
● 2026-03-11 17:35:06
● 2026-03-16 10:13:20
○NSns1.lanapsoft.com2015-06-05 → 2021-05-23 · 4 obs
● 2021-05-23 08:01:40
○ 2026-03-11 17:35:06
○ 2026-03-16 10:13:20
○NSns2.lanapsoft.com2015-06-05 → 2021-05-23 · 4 obs
● 2021-05-23 08:01:40
○ 2026-03-11 17:35:06
○ 2026-03-16 10:13:20
●NSoxygen.ns.hetzner.com2026-03-11 → 2026-03-16 · 3 obs
● 2026-03-11 17:35:06
● 2026-03-16 10:13:20
●MXmail.captcha.org2016-12-28 → 2026-03-16 · 2 obs
● 2026-03-16 10:13:20
○A178.63.240.2162015-06-05 → 2021-05-23 · 4 obs
● 2021-05-23 08:01:40
○ 2026-03-11 17:35:06
○ 2026-03-16 10:13:20
●A188.40.246.972026-03-11 → 2026-03-16 · 3 obs
● 2026-03-11 17:35:06
● 2026-03-16 10:13:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| captcha.org | hydrogen.ns.hetzner.com, helium.ns.hetzner.de, oxygen.ns.hetzner.com | - |
✅ Authoritative Response
Server: 193.47.99.5
NS records: hydrogen.ns.hetzner.com, helium.ns.hetzner.de, oxygen.ns.hetzner.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for captcha.org (unsigned zone)
⏱️ Timing
Total: 588ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 188.40.246.97 |
| NS | 3 | helium.ns.hetzner.de, hydrogen.ns.hetzner.com... |
| MX | 1 | mail.captcha.org (pri: 10) |
| SOA | 1 | hydrogen.ns.hetzner.com dns.hetzner.com |
Analysis
Hierarchy
captcha.org is parent of www.captcha.org and mail.captcha.org.
IP Addresses
captcha.org points to a single IP number: 188.40.246.97.
Other host names, for instance a.dds.ro, www.captcha.org and static.97.246.40.188.clients.your-server.de share IP numbers with captcha.org.
Name Servers
captcha.org is delegated to three name servers: hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.
captcha.org at least partially shares name servers with other domains, for instance stephanschultheiss.de, ptua.eu, reisegadgets.com, juwy.de and bau-webverzeichnis.de.
These name servers are commonly used with ns1.first-ns.de, robotns3.second-ns.com and robotns2.second-ns.de.
Host names with two IP numbers:
Host hydrogen.ns.hetzner.com points to 2a01:4f8:0:1::add:1098 and 213.133.100.98.
Host oxygen.ns.hetzner.com points to 2a01:4f8:0:1::add:2992 and 88.198.229.192.
Host helium.ns.hetzner.de points to 2001:67c:192c::add:5 and 193.47.99.5.
Mail Servers
captcha.org is handled by a single mail server, mail.captcha.org.
Host name mail.captcha.org points to IP address 178.63.240.220.