refdev.com - dns.ninja
refdev.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 217.13.203.25🇩🇪 SPEEDBONE-AS217.13.192.0/20 SPEEDBONE GmbH | ||||||
| PTR | cashboxx.de | ||||||
| NS | ns11.prosite.de ⭐ | ||||||
| A | 2a02:8b8:704::3011🇩🇪 SPEEDBONE-AS2a02:8b8::/32 IPv6 | ||||||
| A | 217.13.192.2🇩🇪 SPEEDBONE-AS217.13.192.0/20 SPEEDBONE GmbH | ||||||
| PTR | ns11.prosite.de | ||||||
| NS | ns11.worldserver.net ⚠️ Not in zone NS records | ||||||
| A | 2a02:8b8:704::3011🇩🇪 SPEEDBONE-AS2a02:8b8::/32 IPv6 | ||||||
| A | 217.13.192.2🇩🇪 SPEEDBONE-AS217.13.192.0/20 SPEEDBONE GmbH | ||||||
| PTR | ns11.prosite.de | ||||||
| NS | ns12.worldserver.net ⚠️ Not in zone NS records | ||||||
| A | 2a02:8b8:704::3012🇩🇪 SPEEDBONE-AS2a02:8b8::/32 IPv6 | ||||||
| A | 217.13.193.2🇩🇪 SPEEDBONE-AS217.13.192.0/20 SPEEDBONE GmbH | ||||||
| PTR | ns12.prosite.de | ||||||
| MX | mx1.refdev.com ⭐ | ||||||
| A | 217.13.203.25🇩🇪 SPEEDBONE-AS217.13.192.0/20 SPEEDBONE GmbH | ||||||
| PTR | cashboxx.de | ||||||
| MX | mx2.refdev.com(20) | ||||||
| SOA | ns11.prosite.dehostmaster@refdev.com 2022-06-03 #1 | ||||||
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=1782921466 | ||||||
Subdomains
mx2.refdev.com |
Same first word
refdev.com |
Similar names
freevd.com |
feverd.com |
dvfree.org |
vfreed.com |
vfeedr.com |
devref.com |
vrfeed.com |
fedrev.com |
defrev.com |
freedv.org |
dfever.com |
rvfeed.com |
dvfree.com |
devref.net |
freedv.com |
devfre.com |
DNS History
6 records (6 active, 0 former)
●NSns11.prosite.de2026-02-26 → 2026-07-01 · 11 obs
● 2026-02-26 20:55:26
○ 2026-03-18 16:34:04
○ 2026-03-24 06:37:00
● 2026-03-27 10:31:14
○ 2026-03-27 11:05:08
○ 2026-03-29 17:41:28
● 2026-04-02 22:21:08
○ 2026-06-09 13:20:32
● 2026-07-01 06:29:14
● 2026-07-01 16:23:02
●NSns11.worldserver.net2015-06-16 → 2026-07-01 · 3 obs
● 2015-06-16 18:04:14
● 2026-07-01 16:23:02
●NSns12.worldserver.net2015-06-16 → 2026-07-01 · 3 obs
● 2015-06-16 18:04:14
● 2026-07-01 16:23:02
●MXmx1.refdev.com2008-03-20 → 2026-07-01 · 12 obs
● 2016-12-04 08:22:22
○ 2026-02-26 20:55:26
○ 2026-03-24 06:37:00
● 2026-03-27 10:31:14
● 2026-03-27 11:05:08
○ 2026-03-29 17:41:28
○ 2026-04-02 22:21:08
● 2026-06-09 13:20:32
○ 2026-07-01 06:29:14
● 2026-07-01 09:08:04
● 2026-07-01 16:23:02
●MXmx2.refdev.com2008-03-20 → 2026-07-01 · 12 obs
● 2016-12-04 08:22:22
○ 2026-02-26 20:55:26
○ 2026-03-24 06:37:00
● 2026-03-27 10:31:14
● 2026-03-27 11:05:08
○ 2026-03-29 17:41:28
○ 2026-04-02 22:21:08
● 2026-06-09 13:20:32
○ 2026-07-01 06:29:14
● 2026-07-01 09:08:04
● 2026-07-01 16:23:02
●A217.13.203.252015-06-16 → 2026-07-01 · 8 obs
● 2015-06-16 18:04:14
● 2016-12-04 08:22:22
○ 2026-02-26 20:55:26
○ 2026-03-18 16:34:04
● 2026-03-24 06:37:00
○ 2026-07-01 09:08:04
● 2026-07-01 16:23:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| refdev.com | ns11.worldserver.net, ns12.worldserver.net | - |
✅ Authoritative Response
Server:217.13.193.2
NS records: ns11.worldserver.net, ns12.worldserver.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for refdev.com (unsigned zone)
⏱️ Timing
Total: 395ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.13.203.25 |
| SOA | 1 | ns11.prosite.de hostmaster.refdev.com |
Analysis
Hierarchy
mx2.refdev.com is delegated beneath refdev.com.
IP Addresses
refdev.com resolves to one IP address: 217.13.203.25.
The host names biznets.de, mx2.refdev.com, mail.hostin.de and scriptin.de all share IP numbers with refdev.com.
Name Servers
DNS for refdev.com is handled by three authoritative name servers: ns11.prosite.de, ns11.worldserver.net and ns12.worldserver.net.
There is at least partial name server overlap between refdev.com and other domains — nielsen-enge.de, nova-shop.de, xn--mnnchen-5wa.com and two more among them.
These name servers are routinely deployed together with the name servers ns12.prosite.de.
The hostnames ns11.prosite.de, ns11.worldserver.net and ns12.worldserver.net each point to a pair of IP addresses. ns11.prosite.de has 217.13.192.2 and 2a02:8b8:704::3011; ns11.worldserver.net has 217.13.192.2 and 2a02:8b8:704::3011; ns12.worldserver.net has 217.13.193.2 and 2a02:8b8:704::3012.
Host names pointing to 2a02:8b8:704::3011 IP addresses: ns11.prosite.de and ns11.worldserver.net.
Host names pointing to 217.13.192.2 IP addresses: ns11.prosite.de and ns11.worldserver.net.
Mail Servers
Mail for refdev.com is handled by two mail servers — mx1.refdev.com and mx2.refdev.com.
Hosts with just one IP address:
mx1.refdev.com directs to 217.13.203.25.