biscost.com - robtex.com
biscost.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=1784621117 | ||||||
Same first word
biscost.com |
Similar names
DNS History
8 records (7 active, 1 former)
●NSchris.ns.cloudflare.com2026-06-01 → 2026-07-21 · 2 obs
● 2026-07-21 08:20:42
●NSdeb.ns.cloudflare.com2026-06-01 → 2026-07-21 · 2 obs
● 2026-07-21 08:20:42
●MXsmtp.google.com2026-06-01 → 2026-07-21 · 2 obs
● 2026-07-21 08:20:42
●A104.21.36.1962026-06-01 → 2026-07-21 · 2 obs
● 2026-07-21 08:20:42
●A172.67.199.132026-06-01 → 2026-07-21 · 2 obs
● 2026-07-21 08:20:42
○A2606:4700:3033::6815:24c42026-06-01 → 2026-06-01 · 3 obs
○ 2026-07-21 08:20:40
○ 2026-07-21 08:20:42
●A2606:4700:3034::6815:24c42026-07-21 → 2026-07-21 · 3 obs
● 2026-07-21 08:20:40
● 2026-07-21 08:20:42
●A2606:4700:3037::ac43:c70d2026-06-01 → 2026-07-21 · 2 obs
● 2026-07-21 08:20:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, d.gtld-servers.net, f.gtld-servers.net, h.gtld-servers.net... | - |
| biscost.com | chris.ns.cloudflare.com, deb.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.192.92
NS records: chris.ns.cloudflare.com, deb.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for biscost.com (unsigned zone)
⏱️ Timing
Total: 334ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.199.13, 104.21.36.196 |
| AAAA | 2 | 2606:4700:3034::6815:24c4, 2606:4700:3037::ac43:c70d |
| NS | 2 | chris.ns.cloudflare.com, deb.ns.cloudflare.com |
| MX | 1 | smtp.google.com (pri: 1) |
| TXT | 3 | google-site-verification=VhXMLZzUttD18tU, google-site-verification=rio11e4ihLDFN2F... |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | chris.ns.cloudflare.com dns.cloudflare.c |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (chris.ns.cloudflare.com, chris.ns.cloudflare.com, chris.ns.cloudflare.com...)
Analysis
IP Addresses
biscost.com points to the four IP addresses 104.21.36.196, 172.67.199.13, 2606:4700:3034::6815:24c4 and 2606:4700:3037::ac43:c70d.
Two other host names, along with letzacher.ch, annharty.com and www.radio-media.ch, also share IP numbers with biscost.com.
Name Servers
biscost.com uses two name servers for its delegation: chris.ns.cloudflare.com and deb.ns.cloudflare.com.
biscost.com shares its NS records with other domains, for example labtrek.com, lolava.com, vabuko.com and two others.
At least some of biscost.com's name servers are shared with other domains, for example rivergladecapital.com, pelin.com.tr, labs.coffee and two more.
These name servers are often deployed together with the name servers lakas.ns.cloudflare.com, tani.ns.cloudflare.com, amber.ns.cloudflare.com and michelle.ns.cloudflare.com.
DNS names with 6 IP addresses:
Hostname chris.ns.cloudflare.com directs to 108.162.193.85, 172.64.33.85 and 173.245.59.85 along with 3 other IP addresses.
Hostname deb.ns.cloudflare.com directs to 108.162.192.92, 172.64.32.92 and 173.245.58.92 along with 3 other IP addresses.
Mail Servers
The sole mail server for biscost.com is smtp.google.com.
Among the domains sharing a mail server setup with biscost.com are guardianrose.com, bostonglobemedia.mobi, hoteldicattolica.it and two others.
There is at least a partial MX overlap between biscost.com and other domains, including led-ibc.nl, elitetools-partner.com, menony.com and two others.
With 9 IP addresses total, smtp.google.com resolves to 172.253.62.26, 172.253.62.27, 172.253.115.26 and 6 others.