rmplus.org - dns.ninja
rmplus.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.91.86.10🇨🇿 WEB4U81.91.80.0/21 | ||||||
| PTR | php4.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 | mx1.mailchannels.net ⭐ | ||||||
| A | 54.69.1.140🇺🇸 Amazon54.68.0.0/15 EC2 PDX Prefix | ||||||
| PTR | ec2-54-69-1-140.us-west-2.compute.amazonaws.com | ||||||
| MX | mx2.mailchannels.net ⭐ | ||||||
| A | 54.187.177.89🇺🇸 Amazon54.186.0.0/15 EC2 PDX prefix | ||||||
| PTR | ec2-54-187-177-89.us-west-2.compute.amazonaws.com | ||||||
| TXT | v=spf1 include:_spf.web4u.cz ~all | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2025-05-04 #0 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1785692905 | ||||||
Same first word
Similar names
upsrlm.com |
mrplus.us |
rplusm.cz |
rpmsul.com |
rplusm.com |
upsrlm.org |
mplusr.nl |
plusrm.com |
mrplus.com |
pmusrl.it |
mrplus.ru |
rplusm.chu.jp |
mpsurl.com |
DNS History
6 records (5 active, 1 former)
○MXmail.rmplus.org2015-05-26 → 2017-05-26 · 4 obs
● 2017-05-26 13:10:54
○ 2026-02-21 09:06:40
○ 2026-08-02 18:24:32
●MXmx1.mailchannels.net2026-02-21 → 2026-08-02 · 3 obs
● 2026-02-21 09:06:40
● 2026-08-02 18:24:32
●MXmx2.mailchannels.net2026-02-21 → 2026-08-02 · 3 obs
● 2026-02-21 09:06:40
● 2026-08-02 18:24:32
●A81.91.86.102015-05-26 → 2026-08-02 · 2 obs
● 2026-08-02 18:24:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| rmplus.org | ns2.web4u.cz, ns.web4u.cz | - |
✅ Authoritative Response
Server:185.14.224.241
NS records: ns2.web4u.cz, ns.web4u.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rmplus.org (unsigned zone)
⏱️ Timing
Total: 966ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.91.86.10 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 2 | mx1.mailchannels.net (pri: 10), mx2.mailchannels.net (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.web4u.cz ~all |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
Analysis
IP Addresses
rmplus.org points to a single IP number: 81.91.86.10.
Additional host names — weilovna.cz, ello.cz, phpmyadmin.bef.cz and two others — share IP numbers with rmplus.org.
Name Servers
Two name servers handle the delegation for rmplus.org: ns2.web4u.cz and ns.web4u.cz.
rmplus.org shares its name server setup with other domains, including replac-bm.eu, skol.net, dir-shop.eu and two others.
ns2.web4u.cz and ns.web4u.cz both carry two IP addresses. The A records for ns2.web4u.cz are 85.207.53.12 and 2a02:a40:100:28ff::12; the A records for ns.web4u.cz are 185.14.224.241 and 2001:1568:fd::241.
Mail Servers
rmplus.org has two mail servers: mx1.mailchannels.net and mx2.mailchannels.net.
rmplus.org shares the same mail server setup as other domains, including motionedge.com, boxxos.com, virtualsupportlo.com and two others.
rmplus.org and other domains — svalle.se for instance — share at least some mail servers.
mx1.mailchannels.net → 54.69.1.140 and mx2.mailchannels.net → 54.187.177.89: one IP number per host name.