openstring.at - dns.ninja
openstring.at
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.19.159.20🇦🇹 IONOS-AS81.19.144.0/20 World4You.com | ||||||
| PTR | www20sni.world4you.com | ||||||
| NS | ns1.world4you.at ⭐ | ||||||
| A | 2607:f1c0:fe:53:185:132:32:253🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US | ||||||
| PTR | ns1.world4you.at | ||||||
| A | 185.132.32.253🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS) | ||||||
| PTR | ns1.world4you.at | ||||||
| NS | ns2.world4you.at | ||||||
| A | 2001:8d8:fe:53:217:160:82:253🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific | ||||||
| PTR | ns2.world4you.at | ||||||
| A | 217.160.82.253🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific | ||||||
| PTR | ns2.world4you.at | ||||||
| MX | mail.openstring.at ⭐ | ||||||
| A | 81.19.149.34🇦🇹 IONOS-AS81.19.144.0/20 World4You.com | ||||||
| PTR | mail15.world4you.com | ||||||
| TXT | v=spf1 mx include:spf.w4ymail.at -all | ||||||
| SOA | ns1.world4you.athostmaster@world4you.com 2025-03-26 #26 | ||||||
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=1782075602 | ||||||
Subdomains
Same first word
Similar names
strongpine.com |
springnote.net |
springnote.com |
sportingen.com |
neginsport.com |
prestongin.com |
springtone.com |
pinestrong.com |
springnote.co.kr |
DNS History
5 records (4 active, 1 former)
●NSns1.world4you.at2015-07-03 → 2026-06-21 · 2 obs
● 2026-06-21 21:33:22
●NSns2.world4you.at2015-07-03 → 2026-06-21 · 2 obs
● 2026-06-21 21:33:22
●MXmail.openstring.at2015-07-03 → 2026-06-21 · 2 obs
● 2026-06-21 21:33:22
○A81.19.145.402015-07-03 → 2017-05-14 · 4 obs
● 2017-05-14 17:25:46
○ 2026-03-30 00:11:20
○ 2026-06-21 21:33:22
●A81.19.159.202026-03-30 → 2026-06-21 · 3 obs
● 2026-03-30 00:11:20
● 2026-06-21 21:33:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| at | d.ns.at, u.ns.at, r.ns.at, ns2.univie.ac.at... | - |
| openstring.at | ns2.world4you.at, ns1.world4you.at | - |
✅ Authoritative Response
Server:217.160.82.253
NS records: ns2.world4you.at, ns1.world4you.at
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for openstring.at (unsigned zone)
⏱️ Timing
Total: 564ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.19.159.20 |
| NS | 2 | ns2.world4you.at, ns1.world4you.at |
| MX | 1 | mail.openstring.at (pri: 10) |
| TXT | 1 | v=spf1 mx include:spf.w4ymail.at -all |
| SOA | 1 | ns1.world4you.at hostmaster.world4you.co |
Analysis
Hierarchy
mail.openstring.at and www.openstring.at are both subdomains of openstring.at.
IP Addresses
openstring.at resolves to one IP address: 81.19.159.20.
werfring.com, katjaberger.com, stoica.at and two other host names share IP numbers with openstring.at.
Name Servers
openstring.at uses two name servers for its delegation: ns1.world4you.at and ns2.world4you.at.
openstring.at uses the same name servers as several other domains — among them probis-technology.de, blaubeer.at, inesdogx.at and two more.
The two host names ns1.world4you.at and ns2.world4you.at each have a pair of IP addresses: ns1.world4you.at has 185.132.32.253 and 2607:f1c0:fe:53:185:132:32:253, and ns2.world4you.at has 217.160.82.253 and 2001:8d8:fe:53:217:160:82:253.
Mail Servers
Mail for openstring.at is handled by a single mail server, mail.openstring.at.
mail.openstring.at directs to just one IP number, 81.19.149.34.