referenceworks.es - dns.ninja
referenceworks.es
| DNSSEC | ⚠️ Not signed | ||||||
| A | 79.139.120.11🇪🇸 acens_AS79.139.120.0/22 | ||||||
| PTR | poapww100.dns-servicio.com | ||||||
| NS | ns1.srv-acens.com ⭐ | ||||||
| A | 86.109.102.131🇪🇸 acens_AS86.109.102.0/24 DATAHOUSE INTERNET | ||||||
| PTR | ns3.dns-servicios.es | ||||||
| NS | ns2.srv-acens.com | ||||||
| A | 176.28.119.196🇪🇸 acens_AS176.28.119.0/24 | ||||||
| PTR | ns4.dns-servicios.es | ||||||
| MX | mx.referenceworks.es ⭐ | ||||||
| A | 217.116.0.227🇪🇸 acens_AS217.116.0.0/24 | ||||||
| PTR | relaysin.dominioabsoluto.net | ||||||
| TXT | v=spf1 redirect=spf.dominioabsoluto.net | ||||||
| SOA | ns1.srv-acens.comreferenceworks@telefonica.net serial=85292 | ||||||
es
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.nic.es ⭐ | ||||||
| NS | a.nic.es | ||||||
| NS | c.nic.es | ||||||
| NS | g.nic.es | ||||||
| NS | h.nic.es | ||||||
| SOA | ns1.nic.eshostmaster@nic.es 2026-07-25 #1 | ||||||
Subdomains
mx.referenceworks.es |
Same first word
referenceworks.es |
DNS History
5 records (4 active, 1 former)
●NSns1.srv-acens.com2015-07-15 → 2026-07-25 · 7 obs
● 2026-03-26 10:29:50
○ 2026-03-27 09:45:34
● 2026-04-09 11:20:08
○ 2026-04-11 16:23:52
● 2026-06-13 13:52:42
● 2026-07-25 04:39:40
●NSns2.srv-acens.com2015-07-15 → 2026-07-25 · 7 obs
● 2026-03-26 10:29:50
○ 2026-03-27 09:45:34
● 2026-04-09 11:20:08
○ 2026-04-11 16:23:52
● 2026-06-13 13:52:42
● 2026-07-25 04:39:40
●MXmx.referenceworks.es2015-07-15 → 2026-07-25 · 7 obs
● 2026-03-26 10:29:50
○ 2026-03-27 09:45:34
● 2026-04-09 11:20:08
○ 2026-04-11 16:23:52
● 2026-06-13 13:52:42
● 2026-07-25 04:39:40
○A176.28.103.2272015-07-15 → 2020-04-05 · 4 obs
● 2020-04-05 00:49:46
○ 2026-02-15 21:53:26
○ 2026-07-25 04:39:40
●A79.139.120.112026-02-15 → 2026-07-25 · 8 obs
● 2026-02-15 21:53:26
● 2026-03-26 10:29:50
○ 2026-03-27 09:45:34
● 2026-04-09 11:20:08
○ 2026-04-11 16:23:52
● 2026-06-13 13:52:42
● 2026-07-25 04:39:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| es | a.nic.es, g.nic.es, c.nic.es, h.nic.es | - |
| referenceworks.es | ns2.srv-acens.com, ns1.srv-acens.com | - |
✅ Authoritative Response
Server:176.28.119.196
NS records: ns2.srv-acens.com, ns1.srv-acens.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for referenceworks.es (unsigned zone)
⏱️ Timing
Total: 930ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 79.139.120.11 |
| NS | 2 | ns2.srv-acens.com, ns1.srv-acens.com |
| MX | 1 | mx.referenceworks.es (pri: 10) |
| TXT | 1 | v=spf1 redirect=spf.dominioabsoluto.net |
| SOA | 1 | ns1.srv-acens.com referenceworks.telefon |
Analysis
Hierarchy
mx.referenceworks.es is delegated beneath referenceworks.es.
IP Addresses
referenceworks.es resolves to just one IP address, 79.139.120.11.
Two other host names, along with asecovi.com, arcafert.com and caflusa.es, also share IP numbers with referenceworks.es.
Name Servers
The NS records for referenceworks.es delegate to ns1.srv-acens.com and ns2.srv-acens.com.
referenceworks.es shares its NS records with other domains, for example icgaroa.com, cerca.es, actual4.com and two others.
There is at least partial name server overlap between referenceworks.es and other domains — csac.es, ambitgaleriaart.com, refracta.net and two more among them.
These name servers frequently co-occur with the name servers ns1.dns-servicios.es and ns2.dns-servicios.es.
ns1.srv-acens.com → 86.109.102.131 and ns2.srv-acens.com → 176.28.119.196: one IP number per host name.
Mail Servers
The sole mail server for referenceworks.es is mx.referenceworks.es.
mx.referenceworks.es resolves to 217.116.0.227 and no other IP number.