numfil.at - robtex.com
numfil.at
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.91.86.12🇨🇿 WEB4U81.91.80.0/21 | ||||||
| PTR | php53.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.mtaroutes.com ⭐ | ||||||
| A | 2001:550:2:3::62:100🇺🇸 COGENT2001:550::/32 Cogent Communications | ||||||
| PTR | fe2-r2-in.la10.l.antispamcloud.com | ||||||
| A | 38.89.254.156🇺🇸 AS1663338.89.254.0/23 | ||||||
| PTR | fe1-r2-in.ch03.l.antispamcloud.com | ||||||
| MX | mx2.mtaroutes.com(20) | ||||||
| A | 2001:550:2:61::2fc:100🇺🇸 COGENT2001:550::/32 Cogent Communications | ||||||
| A | 38.89.254.156🇺🇸 AS1663338.89.254.0/23 | ||||||
| PTR | fe1-r2-in.ch03.l.antispamcloud.com | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2013-09-25 #1 | ||||||
at
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns.nic.at ⭐ | ||||||
| NS | d.ns.at 🔒 | ||||||
| NS | j.ns.at 🔒 | ||||||
| NS | n.ns.at 🔒 | ||||||
| NS | ns1.univie.ac.at | ||||||
| NS | ns2.univie.ac.at | ||||||
| NS | r.ns.at 🔒 | ||||||
| NS | u.ns.at 🔒 | ||||||
| SOA | dns.nic.atdomain-admin@univie.ac.at serial=1771290002 | ||||||
Same first word
Similar names
DNS History
7 records (5 active, 2 former)
●MXmx1.mtaroutes.com2026-03-21 → 2026-03-21 · 3 obs
● 2026-03-21 07:02:50
● 2026-03-21 13:29:32
●MXmx2.mtaroutes.com2026-03-21 → 2026-03-21 · 3 obs
● 2026-03-21 07:02:50
● 2026-03-21 13:29:32
○MXnumfil.at.bak-mx.eu0103.smtpbak.com2015-06-18 → 2016-12-30 · 4 obs
● 2016-12-30 22:16:06
○ 2026-03-21 07:02:50
○ 2026-03-21 13:29:32
○MXnumfil.at.pri-mx.eu0103.smtproutes.com2015-06-18 → 2016-12-30 · 4 obs
● 2016-12-30 22:16:06
○ 2026-03-21 07:02:50
○ 2026-03-21 13:29:32
●A81.91.86.122015-06-18 → 2026-03-21 · 2 obs
● 2026-03-21 13:29:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| at | ns2.univie.ac.at, n.ns.at, u.ns.at, d.ns.at... | - |
| numfil.at | ns.web4u.cz, ns2.web4u.cz | - |
✅ Authoritative Response
Server: 85.207.53.12
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for numfil.at (unsigned zone)
⏱️ Timing
Total: 1014ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.91.86.12 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 2 | mx1.mtaroutes.com (pri: 10), mx2.mtaroutes.com (pri: 20) |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
Analysis
IP Addresses
numfil.at points to a single IP number: 81.91.86.12.
Other host names, for instance jelsa.cz, numkon.cz, paintings-martina.com, desseq.com and chlorellapyrenoidosa.cz share IP numbers with numfil.at.
Name Servers
Delegation for numfil.at rests with two name servers, ns2.web4u.cz and ns.web4u.cz.
numfil.at shares the same name server setup as other domains, including dolujeme.eu, fisporent.sk, flexidata.cz, delex.cz and clicktopayvisa.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
numfil.at is handled by two mail servers: mx1.mtaroutes.com and mx2.mtaroutes.com.
numfil.at uses the same mail server configuration as other domains, such as thecentrelivingston.com, fusion-communications.co.uk, maryellenproducts.com, techkon.info and qnode.co.
numfil.at shares mail servers with other domains at least in part, for instance sapporo.co.uk, vassallo.com.au, bickel-wolf.ro, pittakos.nl and benefitscentre.ca.
these mail servers are often used with mx3.mtaroutes.com and mx4.mtaroutes.com.
Host names with two IP numbers:
- mx1.mtaroutes.com points to 2001:550:2:3::62:100 and 38.89.254.156
- mx2.mtaroutes.com points to 2001:550:2:61::2fc:100 and 38.89.254.156
Names pointing to 38.89.254.156: mx1.mtaroutes.com and mx2.mtaroutes.com