doubt.dev - robtex.com
doubt.dev
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::ac43:a027🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3032::6815:ebb🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.14.187Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.160.39🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | jake.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b7a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jake.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c17a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | jake.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:217a🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | jake.ns.cloudflare.com | ||||||
| A | 108.162.193.122🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jake.ns.cloudflare.com | ||||||
| A | 172.64.33.122🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jake.ns.cloudflare.com | ||||||
| A | 173.245.59.122🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jake.ns.cloudflare.com | ||||||
| NS | olga.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3a89🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | olga.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c089🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | olga.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2089🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | olga.ns.cloudflare.com | ||||||
| A | 108.162.192.137🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | olga.ns.cloudflare.com | ||||||
| A | 172.64.32.137🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | olga.ns.cloudflare.com | ||||||
| A | 173.245.58.137🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | olga.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.14.187, 172.67.160.39 | ||||||
| IPv6 hints | 2606:4700:3030::ac43:a027, 2606:4700:3032::6815:ebb | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=185, name=cloudflare-ech.com | ||||||
| SOA | jake.ns.cloudflare.comdns@cloudflare.com serial=2410445832 | ||||||
dev
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns-tld1.charlestonroadregistry.com ⭐ | ||||||
| NS | ns-tld2.charlestonroadregistry.com | ||||||
| NS | ns-tld3.charlestonroadregistry.com | ||||||
| NS | ns-tld4.charlestonroadregistry.com | ||||||
| NS | ns-tld5.charlestonroadregistry.com | ||||||
| SOA | ns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=1 | ||||||
Same first word
doubt.today |
doubt.eu.org |
doubt.fun |
doubt.eu |
doubt.com |
doubt.it |
doubt.dev |
doubt.ch |
doubt.ru |
doubt.uk.com |
doubt.blog |
doubt.net |
doubt.nl |
doubt.website |
doubt.com.br |
doubt.dk |
doubt.biz |
doubt.life |
doubt.de |
doubt.co |
Similar names
Previous names
Next names
DNS History
6 records (6 active, 0 former)
●NSjake.ns.cloudflare.com2026-08-17 → 2026-08-28 · 2 obs
● 2026-08-28 02:24:42
●NSolga.ns.cloudflare.com2026-08-17 → 2026-08-28 · 2 obs
● 2026-08-28 02:24:42
●A104.21.14.1872026-08-17 → 2026-08-28 · 2 obs
● 2026-08-28 02:24:42
●A172.67.160.392026-08-17 → 2026-08-28 · 2 obs
● 2026-08-28 02:24:42
●A2606:4700:3030::ac43:a0272026-08-17 → 2026-08-28 · 2 obs
● 2026-08-28 02:24:42
●A2606:4700:3032::6815:ebb2026-08-17 → 2026-08-28 · 2 obs
● 2026-08-28 02:24:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dev | ns-tld1.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com... | - |
| doubt.dev | olga.ns.cloudflare.com, jake.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.33.122
NS records: olga.ns.cloudflare.com, jake.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for doubt.dev (unsigned zone)
⏱️ Timing
Total: 1246ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.160.39, 104.21.14.187 |
| AAAA | 2 | 2606:4700:3030::ac43:a027, 2606:4700:3032::6815:ebb |
| NS | 2 | jake.ns.cloudflare.com, olga.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | jake.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
doubt.dev points to the four IP addresses 104.21.14.187, 172.67.160.39, 2606:4700:3030::ac43:a027 and 2606:4700:3032::6815:ebb.
strokesummit.neurologyconference.com, mail.metaplast.co.za, guofasdy.com and two other host names share IP numbers with doubt.dev.
Name Servers
doubt.dev is served by two delegated name servers, jake.ns.cloudflare.com and olga.ns.cloudflare.com.
doubt.dev uses the same name servers as several other domains — among them huol.com, mathieuquesnel.com, growbooffers.com and two more.
There is at least partial name server overlap between doubt.dev and other domains — uk-peptides.com, rrui.eu.org, lukeandlizzy.com and two more among them.
These name servers frequently co-occur with the name servers aron.ns.cloudflare.com and sue.ns.cloudflare.com.
Hostnames that resolve to 6 IP addresses:
jake.ns.cloudflare.com carries IP addresses 108.162.193.122, 172.64.33.122 and 173.245.59.122, with 3 other addresses beyond those.
olga.ns.cloudflare.com carries IP addresses 108.162.192.137, 172.64.32.137 and 173.245.58.137, with 3 other addresses beyond those.