jsflabs.io - robtex.com
jsflabs.io
io
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.io ⭐ | ||||||
| NS | a2.nic.io | ||||||
| NS | b0.nic.io | ||||||
| NS | c0.nic.io | ||||||
| SOA | a0.nic.iohostmaster@donuts.email serial=1773494468 | ||||||
Subdomains
www.jsflabs.io |
Same first word
jsflabs.io |
DNS History
5 records (5 active, 0 former)
●NSns1.vercel-dns.com2026-02-25 → 2026-03-21 · 2 obs
● 2026-03-21 10:56:52
●NSns2.vercel-dns.com2026-02-25 → 2026-03-21 · 2 obs
● 2026-03-21 10:56:52
●MXmx1.improvmx.com2026-02-25 → 2026-03-21 · 2 obs
● 2026-03-21 10:56:52
●MXmx2.improvmx.com2026-02-25 → 2026-03-21 · 2 obs
● 2026-03-21 10:56:52
●A76.76.21.212026-02-25 → 2026-03-21 · 2 obs
● 2026-03-21 10:56:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io | - |
| jsflabs.io | ns1.vercel-dns.com, ns2.vercel-dns.com | - |
✅ Authoritative Response
Server: 198.51.44.13
NS records: ns1.vercel-dns.com, ns2.vercel-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jsflabs.io (unsigned zone)
⏱️ Timing
Total: 2103ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 76.76.21.21 |
| NS | 2 | ns1.vercel-dns.com, ns2.vercel-dns.com |
| MX | 2 | mx1.improvmx.com (pri: 10), mx2.improvmx.com (pri: 20) |
| TXT | 1 | v=spf1 include:spf.improvmx.com ~all |
| SOA | 1 | ns1.vercel-dns.com hostmaster.nsone.net |
Analysis
Hierarchy
jsflabs.io is the parent of www.jsflabs.io.
IP Addresses
jsflabs.io points to a single IP number: 76.76.21.21.
other host names for instance eyasrise.com, jaquet.nl, inglesicao.com.br, aurens.com and cbreazy.com share IP numbers with jsflabs.io.
Name Servers
jsflabs.io is delegated to two name servers: ns1.vercel-dns.com and ns2.vercel-dns.com.
jsflabs.io shares the same name server setup as other domains, for example powerandair.com, docton.com.br, greenfieldinnovation.com, chubbymomo.com and personalizecuritiba.com.br.
jsflabs.io at least partially shares name servers with other domains, for instance xpersion.com, swarms.world, zacarip.com, creators.cz and metroboomin.net.
These name servers are often used with b.zeit-world.org and a.zeit-world.co.uk.
Host names with two IP numbers:
ns1.vercel-dns.com points to 2620:4d:4000:6259:7:13:0:1 and 198.51.44.13
ns2.vercel-dns.com points to 2a00:edc0:6259:7:13::2 and 198.51.45.13
Mail Servers
jsflabs.io is handled by two mail servers: mx1.improvmx.com and mx2.improvmx.com.
jsflabs.io shares the same mail server setup as other domains, for instance mohammadi.io, therefinedfeline.com, matteomattei.com, thestandcompany.net and digitaladvertising.com.
jsflabs.io shares some mail servers with other domains at least partially, for example warriorsonline.net.
Host names with six IP numbers:
mx1.improvmx.com points to: 2a05:d012:412:e201:88aa:e7b9:7a43:12d7, 2a05:d012:412:e202:f36:2c1f:1a49:d38a, 2a05:d012:412:e203:373a:f51a:4a85:1d25, 13.37.195.136, 15.236.236.160 and 35.181.18.45; mx2.improvmx.com points to: 2a05:d012:412:e201:1f6e:f6e4:8fd7:4678, 2a05:d012:412:e202:e81e:cc44:3b53:8a3d, 2a05:d012:412:e203:7e33:3d9c:28d7:ee20, 13.36.107.63, 13.36.222.39 and 15.236.61.92.