avast2017.com - robtex.com
avast2017.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 | ||||||
Same first word
avast2017.com |
DNS History
15 records (6 active, 9 former)
○NSns1.above.com2017-12-25 → 2017-12-25 · 4 obs
● 2017-12-25 21:31:32
○ 2026-03-19 06:47:58
○ 2026-03-22 14:50:08
○NSns1.mysrsx.com2016-12-16 → 2016-12-16 · 3 obs
○ 2017-12-25 21:31:32
○ 2026-03-22 14:50:08
●NSns1.web4ce.cz2026-03-19 → 2026-03-22 · 3 obs
● 2026-03-19 06:47:58
● 2026-03-22 14:50:08
○NSns2.above.com2017-12-25 → 2017-12-25 · 4 obs
● 2017-12-25 21:31:32
○ 2026-03-19 06:47:58
○ 2026-03-22 14:50:08
○NSns2.mysrsx.net2016-12-16 → 2016-12-16 · 3 obs
○ 2017-12-25 21:31:32
○ 2026-03-22 14:50:08
●NSns2.web4ce.cz2026-03-19 → 2026-03-22 · 3 obs
● 2026-03-19 06:47:58
● 2026-03-22 14:50:08
○NSns3.mysrsx.biz2016-12-16 → 2016-12-16 · 3 obs
○ 2017-12-25 21:31:32
○ 2026-03-22 14:50:08
○NSns4.mysrsx.org2016-12-16 → 2016-12-16 · 3 obs
○ 2017-12-25 21:31:32
○ 2026-03-22 14:50:08
●MXmx1.web4ce.cz2026-03-19 → 2026-03-22 · 3 obs
● 2026-03-19 06:47:58
● 2026-03-22 14:50:08
●MXmx2.web4ce.cz2026-03-19 → 2026-03-22 · 3 obs
● 2026-03-19 06:47:58
● 2026-03-22 14:50:08
●MXmx3.web4ce.cz2026-03-19 → 2026-03-22 · 3 obs
● 2026-03-19 06:47:58
● 2026-03-22 14:50:08
○MXmx92.m1bp.com2017-12-25 → 2017-12-25 · 3 obs
○ 2026-03-19 06:47:58
○ 2026-03-22 14:50:08
○MXmx92.mb5p.com2017-12-25 → 2017-12-25 · 3 obs
○ 2026-03-19 06:47:58
○ 2026-03-22 14:50:08
○A103.224.212.2222017-12-25 → 2017-12-25 · 3 obs
○ 2026-03-19 06:47:58
○ 2026-03-22 14:50:08
●A93.190.48.72026-03-19 → 2026-03-22 · 3 obs
● 2026-03-19 06:47:58
● 2026-03-22 14:50:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, i.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net... | - |
| avast2017.com | ns1.web4ce.cz, ns2.web4ce.cz | - |
✅ Authoritative Response
Server: 93.190.49.250
NS records: ns1.web4ce.cz, ns2.web4ce.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for avast2017.com (unsigned zone)
⏱️ Timing
Total: 993ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 93.190.48.7 |
| NS | 2 | ns1.web4ce.cz, ns2.web4ce.cz |
| MX | 3 | mx2.web4ce.cz (pri: 10), mx1.web4ce.cz (pri: 10)... |
| TXT | 1 | v=spf1 mx include:spf.web4ce.cz ~all |
| SOA | 1 | ns1.web4ce.cz domeny.web4ce.cz |
Analysis
IP Addresses
avast2017.com points to a single IP address: 93.190.48.7.
Other host names such as soundcity.cz, profesormobil.cz, egplus.cz, na2ty.cz and mikajan.cz share IPs with avast2017.com.
Name Servers
Two name servers ns1.web4ce.cz and ns2.web4ce.cz handle the delegation for avast2017.com.
avast2017.com shares the same name server setup as other domains, for example beledia.cz, gismentors.cz, vrbovskepirohy.sk, uxy.cz and jago.cz.
Host names with two IP numbers:
ns1.web4ce.cz points to 2a02:c600:0:4::1 and 93.190.48.250.
ns2.web4ce.cz points to 2a02:c600:0:4::2 and 93.190.49.250.
Mail Servers
avast2017.com is handled by three mail servers: mx1.web4ce.cz, mx2.web4ce.cz and mx3.web4ce.cz.
avast2017.com shares at least partially some mail servers with other domains, for instance anders.cz, pgk.cz, arch-a.cz, hakimgym.cz and shibari.cz.
Host names with three IP numbers:
All host names mx1.web4ce.cz, mx2.web4ce.cz and mx3.web4ce.cz point to: 93.190.48.73, 93.190.48.74 and 93.190.48.75.
Host names that point to 93.190.48.73: mx1.web4ce.cz, mx2.web4ce.cz and mx3.web4ce.cz.
Host names that point to 93.190.48.74: mx1.web4ce.cz, mx2.web4ce.cz and mx3.web4ce.cz.
Host names that point to 93.190.48.75: mx1.web4ce.cz, mx2.web4ce.cz and mx3.web4ce.cz.