ns3.is-a.dev - robtex.com
ns3.is-a.dev
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2400:cb00:2049:1::a29f:4ed🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| A | 162.159.4.237Cloudflare162.159.4.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
is-a.dev
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2606:4700::6812:467🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700::6812:567🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.18.4.103Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.18.5.103Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | ns1.is-a.dev ⭐ | ||||||
| NS | ns2.is-a.dev | ||||||
| NS | ns3.is-a.dev | ||||||
| NS | ns4.is-a.dev | ||||||
| MX | route1.mx.cloudflare.net ⭐ | ||||||
| MX | route3.mx.cloudflare.net(36) | ||||||
| MX | route2.mx.cloudflare.net(62) | ||||||
| TXT | v=spf1 include:_spf.mx.cloudflare.net ~all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.18.4.103, 104.18.5.103 | ||||||
| IPv6 hints | 2606:4700::6812:467, 2606:4700::6812:567 | ||||||
| SOA | ns1.is-a.devdns@cloudflare.com serial=2409729229 | ||||||
rank #92 in the tld
is-a.dev
is-a.dev is a free service that lets developers claim a personalized subdomain (e.g.yourname.is-a.dev) by submitting a pull request to a public GitHub repository. It is run as an open-source, community-driven project rather than a commercial company.
Key facts
- Owner / operator: is-a.dev project maintainers (open-source community, hosted via GitHub)
- TLD:
.dev— gTLD (Google-operated, HSTS-preloaded) - Primary purpose: free subdomain hosting/registration for developer projects and personal sites
- Status: active
Notable subdomains or services
yourname.is-a.dev— custom subdomains issued to individual users/projects via GitHub pull request, typically pointed at personal sites, portfolios, or other hosting services
NS for
Same first word
Similar names
DNS History
2 records (2 active, 0 former)
●A162.159.4.2372026-02-14 → 2026-07-17 · 2 obs
● 2026-07-17 01:07:38
●A2400:cb00:2049:1::a29f:4ed2026-02-14 → 2026-07-17 · 2 obs
● 2026-07-17 01:07:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dev | ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com... | - |
| is-a.dev | ns2.is-a.dev, ns4.is-a.dev, ns3.is-a.dev, ns1.is-a.dev | 8 records |
✅ Authoritative Response
Server:162.159.4.237
NS records: ns2.is-a.dev, ns4.is-a.dev, ns3.is-a.dev, ns1.is-a.dev
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 252ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.159.4.237 |
| AAAA | 1 | 2400:cb00:2049:1::a29f:4ed |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (ns1.is-a.dev, ns1.is-a.dev, ns3.is-a.dev...)
Analysis
Name Server Role
ns3.is-a.dev is a name server for is-a.dev.
ns1.is-a.dev, ns2.is-a.dev and ns4.is-a.dev are often grouped with ns3.is-a.dev to function as name servers.
IP Addresses
ns3.is-a.dev points to the IP addresses 162.159.4.237 and 2400:cb00:2049:1::a29f:4ed
Two other host names, along with ns3.mediascope.group, ns5.pkg.st and nsb.ibama.gov.br, also share IP numbers with ns3.is-a.dev.