mathml.org - dns.ninja
mathml.org
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1782617608 | ||||||
Same first word
Similar names
DNS History
12 records (6 active, 6 former)
○NSa.ns.bytemark.co.uk2015-07-04 → 2020-04-23 · 4 obs
● 2020-04-23 04:31:08
○ 2026-03-24 09:07:32
○ 2026-06-28 04:01:10
○NSb.ns.bytemark.co.uk2015-07-04 → 2020-04-23 · 4 obs
● 2020-04-23 04:31:08
○ 2026-03-24 09:07:32
○ 2026-06-28 04:01:10
○NSc.ns.bytemark.co.uk2015-07-04 → 2020-04-23 · 4 obs
● 2020-04-23 04:31:08
○ 2026-03-24 09:07:32
○ 2026-06-28 04:01:10
●NSns1.first-ns.de2026-03-24 → 2026-06-28 · 3 obs
● 2026-03-24 09:07:32
● 2026-06-28 04:01:10
○NSns2.shareable.org2015-07-04 → 2020-04-23 · 4 obs
● 2020-04-23 04:31:08
○ 2026-03-24 09:07:32
○ 2026-06-28 04:01:10
●NSns5.shareable.org2026-03-24 → 2026-06-28 · 3 obs
● 2026-03-24 09:07:32
● 2026-06-28 04:01:10
●NSrobotns2.second-ns.de2026-03-24 → 2026-06-28 · 3 obs
● 2026-03-24 09:07:32
● 2026-06-28 04:01:10
●NSrobotns3.second-ns.com2026-03-24 → 2026-06-28 · 3 obs
● 2026-03-24 09:07:32
● 2026-06-28 04:01:10
○MXmail2.shareable.org2015-07-04 → 2017-03-30 · 4 obs
● 2017-03-30 09:19:36
○ 2020-04-23 04:31:08
○ 2026-06-28 04:01:10
●MXmail3.shareable.org2020-04-23 → 2026-06-28 · 3 obs
● 2020-04-23 04:31:08
● 2026-06-28 04:01:10
○A80.68.89.1152015-07-04 → 2017-03-30 · 4 obs
● 2017-03-30 09:19:36
○ 2020-04-23 04:31:08
○ 2026-06-28 04:01:10
●A88.99.253.1762020-04-23 → 2026-06-28 · 3 obs
● 2020-04-23 04:31:08
● 2026-06-28 04:01:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| mathml.org | ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com | - |
✅ Authoritative Response
Server:213.239.242.238
NS records: ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathml.org (unsigned zone)
⏱️ Timing
Total: 619ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 88.99.253.176 |
| NS | 3 | robotns2.second-ns.de, robotns3.second-ns.com... |
| MX | 1 | mail3.shareable.org (pri: 20) |
| TXT | 3 | spf2.0/pra, About Sender Policy Framework (SPF): |
| SOA | 1 | ns5.shareable.org hostmaster.shareable.o |
Analysis
IP Addresses
mathml.org has exactly one IP address — 88.99.253.176.
shareable.org, www.oxhack.org, jlokier.co.uk plus two other host names have IP numbers in common with mathml.org.
Name Servers
Four name servers handle the delegation for mathml.org: robotns3.second-ns.com, ns1.first-ns.de, robotns2.second-ns.de and ns5.shareable.org.
mathml.org shares at least some of its name servers with other domains, including sixxt.com, hofbiogasanlage.de, fahren-ohne-fuehrerschein.com and two others.
These name servers are frequently seen alongside the name servers hydrogen.ns.hetzner.com.
Host names pointing to two IP addresses:
robotns3.second-ns.com resolves to 193.47.99.3 and 2001:67c:192c::add:a3.
ns1.first-ns.de resolves to 213.239.242.238 and 2a01:4f8:0:a101::a:1.
robotns2.second-ns.de resolves to 213.133.100.103 and 2a01:4f8:0:1::5ddc:2.
Host names resolving to a single IP address:
ns5.shareable.org resolves to 144.76.4.34.
Mail Servers
mathml.org uses one mail server — mail3.shareable.org.
The mail server setup of mathml.org matches that of other domains such as shareable.org, www.oxhack.org, jlokier.co.uk and two others.
mail3.shareable.org points to one IP number — 88.99.253.176.