cotrk.com - robtex.com
cotrk.com
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=1771291435 | ||||||
Subdomains
www.cotrk.com |
Same first word
cotrk.com |
Similar names
DNS History
19 records (6 active, 13 former)
○NSdns1.registrar-servers.com2017-12-12 → 2017-12-12 · 4 obs
● 2017-12-12 11:15:36
○ 2026-02-17 09:46:04
○ 2026-03-10 01:09:08
○NSdns1.stabletransit.com2016-12-13 → 2016-12-13 · 3 obs
○ 2017-12-12 11:15:36
○ 2026-03-10 01:09:08
○NSdns2.registrar-servers.com2017-12-12 → 2017-12-12 · 4 obs
● 2017-12-12 11:15:36
○ 2026-02-17 09:46:04
○ 2026-03-10 01:09:08
○NSdns2.stabletransit.com2016-12-13 → 2016-12-13 · 3 obs
○ 2017-12-12 11:15:36
○ 2026-03-10 01:09:08
○NSns.rackspace.com2016-12-13 → 2016-12-13 · 3 obs
○ 2017-12-12 11:15:36
○ 2026-03-10 01:09:08
●NSns1.vercel-dns.com2026-02-17 → 2026-03-10 · 3 obs
● 2026-02-17 09:46:04
● 2026-03-10 01:09:08
●NSns2.vercel-dns.com2026-02-17 → 2026-03-10 · 3 obs
● 2026-02-17 09:46:04
● 2026-03-10 01:09:08
○MXeforward1.registrar-servers.com2017-12-12 → 2017-12-12 · 3 obs
○ 2026-02-17 09:46:04
○ 2026-03-10 01:09:08
○MXeforward2.registrar-servers.com2017-12-12 → 2017-12-12 · 3 obs
○ 2026-02-17 09:46:04
○ 2026-03-10 01:09:08
○MXeforward3.registrar-servers.com2017-12-12 → 2017-12-12 · 3 obs
○ 2026-02-17 09:46:04
○ 2026-03-10 01:09:08
○MXeforward4.registrar-servers.com2017-12-12 → 2017-12-12 · 3 obs
○ 2026-02-17 09:46:04
○ 2026-03-10 01:09:08
○MXeforward5.registrar-servers.com2017-12-12 → 2017-12-12 · 3 obs
○ 2026-02-17 09:46:04
○ 2026-03-10 01:09:08
●MXmx1.forwardemail.net2026-02-17 → 2026-03-10 · 3 obs
● 2026-02-17 09:46:04
● 2026-03-10 01:09:08
●MXmx2.forwardemail.net2026-02-17 → 2026-03-10 · 3 obs
● 2026-02-17 09:46:04
● 2026-03-10 01:09:08
○A192.64.119.572017-12-12 → 2017-12-12 · 3 obs
○ 2026-02-17 09:46:04
○ 2026-03-10 01:09:08
○A216.198.79.12026-02-17 → 2026-02-17 · 4 obs
● 2026-02-17 09:46:04
○ 2026-03-09 07:26:32
○ 2026-03-10 01:09:08
○A216.198.79.652026-03-09 → 2026-03-09 · 3 obs
● 2026-03-09 07:26:32
○ 2026-03-10 01:09:08
●A64.29.17.12026-03-10 → 2026-03-10 · 2 obs
● 2026-03-10 01:09:08
●A64.29.17.652026-02-17 → 2026-03-10 · 3 obs
● 2026-02-17 09:46:04
● 2026-03-10 01:09:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net... | - |
| cotrk.com | ns1.vercel-dns.com, ns2.vercel-dns.com | 4 records |
✅ Authoritative Response
Server: 198.51.45.13
NS records: ns1.vercel-dns.com, ns2.vercel-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cotrk.com (unsigned zone)
⏱️ Timing
Total: 189ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 64.29.17.65, 216.198.79.65 |
| NS | 2 | ns1.vercel-dns.com, ns2.vercel-dns.com |
| MX | 2 | mx1.forwardemail.net (pri: 10), mx2.forwardemail.net (pri: 10) |
| TXT | 1 | forward-email-site-verification=CIOxgYwW |
| SOA | 1 | ns1.vercel-dns.com hostmaster.nsone.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.vercel-dns.com, ns1.vercel-dns.com, ns2.vercel-dns.com...)
Analysis
Hierarchy
cotrk.com is the parent of www.cotrk.com.
IP Addresses
cotrk.com resolves to two IP numbers: 64.29.17.1 and 64.29.17.65.
Other host names, for instance underflow.eu, 5abb96f298f4db43.vercel-dns-017.com, skieler.com, f29e1c08c204c490.vercel-dns-017.com and fotopandit.com share IP numbers with cotrk.com.
Name Servers
cotrk.com has two name servers: ns1.vercel-dns.com and ns2.vercel-dns.com.
cotrk.com shares the same name server setup as other domains, for example paulusoro.com, groupbuyseotool.us, tombogroup.com, kcglamour.com and melkin.eu.
cotrk.com shares some name servers with other domains, for example xpersion.com, swarms.world, zacarip.com, creators.cz and metroboomin.net.
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
cotrk.com is served by two mail servers: mx1.forwardemail.net and mx2.forwardemail.net.
cotrk.com shares the mail server setup with other domains, for example otiol.com, flackcheck.org, carcontrol.ch, scrapelabs.com and byersnc.com.
cotrk.com shares mail servers with other domains at least partially, for example dolphin-travel.com, everjungle.com, scarface.dk and yz31.com.
Host names with four IP numbers:
mx1.forwardemail.net has four IPs: 2604:a880:2:d0::306:1, 2a02:6ea0:d71e::2, 121.127.44.56 and 138.197.213.185.
mx2.forwardemail.net has four IPs: 2604:a880:400:d1::cd:9001, 2a02:6ea0:d71e::1, 104.248.224.170 and 121.127.44.59.