rh-arch.com - robtex.com
rh-arch.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=1774847162 | ||||||
rank #187148 in the tld
Subdomains
webmail.rh-arch.com |
Same first word
rh-arch.com |
Similar names
DNS History
7 records (5 active, 2 former)
○MXmail.rh-arch.com2015-08-26 → 2017-03-29 · 4 obs
● 2017-03-29 20:19:04
○ 2020-03-10 14:12:52
○ 2026-03-30 05:22:26
○MXmx.web4u.cz2020-03-10 → 2020-03-10 · 4 obs
● 2020-03-10 14:12:52
○ 2026-02-16 12:10:20
○ 2026-03-30 05:22:26
●MXrharch-com0e.mail.protection.outlook.com2026-02-16 → 2026-03-30 · 3 obs
● 2026-02-16 12:10:20
● 2026-03-30 05:22:26
●A2001:1568::122015-08-26 → 2026-03-30 · 2 obs
● 2026-03-30 05:22:26
●A81.91.86.122015-08-26 → 2026-03-30 · 2 obs
● 2026-03-30 05:22:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net... | - |
| rh-arch.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 rh-arch.com (unsigned zone)
⏱️ Timing
Total: 943ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.91.86.12 |
| AAAA | 1 | 2001:1568::12 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 1 | rharch-com0e.mail.protection.outlook.com |
| TXT | 1 | v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
Analysis
Hierarchy
rh-arch.com is the parent of webmail.rh-arch.com.
IP Addresses
rh-arch.com resolves to two IPs: 2001:1568::12 and 81.91.86.12.
other host names for instance abanaki.cz, profiparking.cz, radekvolf.com, ekov.cz and ge-ambulance.cz share IP numbers with rh-arch.com.
Name Servers
rh-arch.com is delegated to two name servers: ns2.web4u.cz and ns.web4u.cz.
rh-arch.com shares the same name server setup as other domains, for example videomapping.cz, czyes.cz, keltoi.eu, moarako.cz and pujcovna-olomouc.cz.
Host names with two IP numbers:
ns2.web4u.cz points to 2a02:a40:100:28ff::12 and 85.207.53.12
ns.web4u.cz points to 2001:1568:fd::241 and 185.14.224.241
Mail Servers
rh-arch.com is handled by a single mail server, rharch-com0e.mail.protection.outlook.com.
Host name rharch-com0e.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::4, 2a01:111:f403:ca04::a, 2a01:111:f403:ca09::b, 2a01:111:f403:ca09::c, 52.101.68.12, 52.101.68.25, 52.101.73.6 and 52.101.73.28.