python-tutor.com - robtex.com
python-tutor.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 157.90.66.230🇩🇪 Hetzner157.90.0.0/16 HETZNER-DC | ||||||
| PTR | static.230.66.90.157.clients.your-server.de | ||||||
| NS | ns21.kv.de ⭐ | ||||||
| A | 78.47.218.115🇩🇪 Hetzner78.46.0.0/15 HETZNER-RZ-NBG-BLK5 | ||||||
| PTR | static.115.218.47.78.clients.your-server.de | ||||||
| NS | ns22.kv.de | ||||||
| A | 157.90.66.230🇩🇪 Hetzner157.90.0.0/16 HETZNER-DC | ||||||
| PTR | static.230.66.90.157.clients.your-server.de | ||||||
| MX | mail.python-tutor.com ⭐ | ||||||
| A | 157.90.66.230🇩🇪 Hetzner157.90.0.0/16 HETZNER-DC | ||||||
| PTR | static.230.66.90.157.clients.your-server.de | ||||||
| TXT | v=spf1 +a +mx +a:www3.kv.de -all | ||||||
| TXT | google-site-verification=KJaQq4NjZoyc8aWfuhXBtSo0rUTxm10mXiZBNL8TsDE | ||||||
| SOA | ns21.kv.detechnik@kv-gmbh.de serial=1749133705 | ||||||
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=1790973164 | ||||||
Subdomains
mail.python-tutor.com |
Same first word
python-tutor.pages.dev |
python-tutor.ru |
python-tutor.com |
Similar names
Previous names
Next names
DNS History
8 records (4 active, 4 former)
○NSns1.superbregistrar.net2019-12-15 → 2019-12-15 · 3 obs
○ 2026-10-01 09:36:44
○ 2026-10-02 21:03:08
○NSns2.superbregistrar.net2019-12-15 → 2019-12-15 · 3 obs
○ 2026-10-01 09:36:44
○ 2026-10-02 21:03:08
●NSns21.kv.de2026-10-01 → 2026-10-02 · 3 obs
● 2026-10-01 09:36:44
● 2026-10-02 21:03:08
●NSns22.kv.de2026-10-01 → 2026-10-02 · 3 obs
● 2026-10-01 09:36:44
● 2026-10-02 21:03:08
●MXmail.python-tutor.com2026-10-01 → 2026-10-02 · 3 obs
● 2026-10-01 09:36:44
● 2026-10-02 21:03:08
○MXmail.superbregistrar.net2019-12-15 → 2019-12-15 · 3 obs
○ 2026-10-01 09:36:44
○ 2026-10-02 21:03:08
●A157.90.66.2302026-10-01 → 2026-10-02 · 3 obs
● 2026-10-01 09:36:44
● 2026-10-02 21:03:08
○A66.148.94.232019-12-15 → 2019-12-15 · 3 obs
○ 2026-10-01 09:36:44
○ 2026-10-02 21:03:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| python-tutor.com | ns21.kv.de, ns22.kv.de | - |
✅ Authoritative Response
Server:157.90.66.230
NS records: ns21.kv.de, ns22.kv.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for python-tutor.com (unsigned zone)
⏱️ Timing
Total: 754ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 157.90.66.230 |
| NS | 2 | ns21.kv.de, ns22.kv.de |
| MX | 1 | mail.python-tutor.com (pri: 10) |
| TXT | 2 | v=spf1 +a +mx +a:www3.kv.de -all, google-site-verification=KJaQq4NjZoyc8aW |
| SOA | 1 | ns21.kv.de technik.kv-gmbh.de |
Analysis
Hierarchy
python-tutor.com is the parent zone for mail.python-tutor.com.
IP Addresses
python-tutor.com resolves to just one IP address, 157.90.66.230.
Two other host names, along with shrunken.com, mail.websuche.com and mail.image-sharing.com, also share IP numbers with python-tutor.com.
Name Servers
The NS records for python-tutor.com delegate to ns21.kv.de and ns22.kv.de.
python-tutor.com shares its NS records with other domains, for example freunde.de, lookupserver.com, dillenburg24.de and two others.
ns21.kv.de resolves to 78.47.218.115. ns22.kv.de resolves to 157.90.66.230. Both host names point to a single IP number.
Mail Servers
The sole mail server for python-tutor.com is mail.python-tutor.com.
mail.python-tutor.com resolves to 157.90.66.230 and no other IP number.