barclet.com - dns.ninja
barclet.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.91.86.11🇨🇿 WEB4U81.91.80.0/21 | ||||||
| PTR | php5.web4u.cz | ||||||
| NS | ns2.web4u.cz ⭐ | ||||||
| A | 2a02:a40:100:28ff::12🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s. | ||||||
| PTR | ns2.web4u.cz | ||||||
| A | 85.207.53.12🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block | ||||||
| PTR | ns2.web4u.cz | ||||||
| NS | ns.web4u.cz | ||||||
| A | 2001:1568:fd::241🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | ns.web4u.cz | ||||||
| A | 185.14.224.241🇨🇿 WEB4U185.14.224.0/23 | ||||||
| PTR | ns.web4u.cz | ||||||
| MX | mx.web4u.cz ⭐ | ||||||
| A | 2001:1568::7012🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | mx.web4u.cz | ||||||
| A | 81.91.87.12🇨🇿 WEB4U81.91.80.0/21 | ||||||
| PTR | mx.web4u.cz | ||||||
| TXT | v=spf1 include:_spf.web4u.cz ~all | ||||||
| TXT | google-site-verification=CLFIEZB-5pMPZ2xMJWV9ZA5ghIo7iVh2RtCDbA-rljA | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2024-05-15 #0 | ||||||
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=1782786536 | ||||||
Subdomains
mail.barclet.com |
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
○MXmail.barclet.com2015-06-24 → 2017-03-26 · 4 obs
● 2017-03-26 13:17:10
○ 2020-03-05 00:12:18
○ 2026-06-30 02:43:26
●MXmx.web4u.cz2020-03-05 → 2026-06-30 · 3 obs
● 2020-03-05 00:12:18
● 2026-06-30 02:43:26
●A81.91.86.112015-06-24 → 2026-06-30 · 2 obs
● 2026-06-30 02:43:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| barclet.com | ns.web4u.cz, ns2.web4u.cz | - |
✅ Authoritative Response
Server:185.14.224.241
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for barclet.com (unsigned zone)
⏱️ Timing
Total: 812ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.91.86.11 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 1 | mx.web4u.cz (pri: 10) |
| TXT | 2 | v=spf1 include:_spf.web4u.cz ~all, google-site-verification=CLFIEZB-5pMPZ2x |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
Analysis
Hierarchy
barclet.com is a parent domain of mail.barclet.com.
IP Addresses
barclet.com points to a single IP number: 81.91.86.11.
Additional host names — prukaznazbrane.cz, cdc-liberec.cz, unassigned-81-91-92-106.web4u.cz and two others — share IP numbers with barclet.com.
Name Servers
barclet.com uses two name servers for its delegation: ns2.web4u.cz and ns.web4u.cz.
barclet.com shares its name server setup with other domains, including fire.cz, unitedcargo.cz, kesselbio.cz and two others.
The two host names ns2.web4u.cz and ns.web4u.cz each have a pair of IP addresses: ns2.web4u.cz has 85.207.53.12 and 2a02:a40:100:28ff::12, and ns.web4u.cz has 185.14.224.241 and 2001:1568:fd::241.
Mail Servers
barclet.com has one mail server: mx.web4u.cz.
barclet.com shares the same mail server setup as other domains, including vlkodav-stredoasiat.cz, kostej.cz, fjstyle.eu and two others.
barclet.com shares at least some of its mail servers with other domains, such as jp1.cz.
mx.web4u.cz points to two IP addresses: 81.91.87.12 and 2001:1568::7012.