mathoverflow.org - dns.ninja
mathoverflow.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=1782691888 | ||||||
Same first word
mathoverflow.org |
mathoverflow.net |
mathoverflow.com |
DNS History
15 records (9 active, 6 former)
●NSns05.domaincontrol.com2026-03-24 → 2026-06-29 · 3 obs
● 2026-03-24 07:32:34
● 2026-06-29 00:28:10
●NSns06.domaincontrol.com2026-03-24 → 2026-06-29 · 3 obs
● 2026-03-24 07:32:34
● 2026-06-29 00:28:10
○NSns1.wordpress.com2015-08-07 → 2020-03-18 · 4 obs
● 2020-03-18 07:25:46
○ 2026-03-24 07:32:34
○ 2026-06-29 00:28:10
○NSns2.wordpress.com2015-08-07 → 2020-03-18 · 4 obs
● 2020-03-18 07:25:46
○ 2026-03-24 07:32:34
○ 2026-06-29 00:28:10
○NSns3.wordpress.com2015-08-07 → 2020-03-18 · 4 obs
● 2020-03-18 07:25:46
○ 2026-03-24 07:32:34
○ 2026-06-29 00:28:10
●MXalt1.aspmx.l.google.com2015-08-07 → 2026-06-29 · 2 obs
● 2026-06-29 00:28:10
●MXalt2.aspmx.l.google.com2015-08-07 → 2026-06-29 · 2 obs
● 2026-06-29 00:28:10
○MXalt3.aspmx.l.google.com2015-08-07 → 2020-03-18 · 4 obs
● 2020-03-18 07:25:46
○ 2026-03-24 07:32:34
○ 2026-06-29 00:28:10
●MXaspmx.l.google.com2015-08-07 → 2026-06-29 · 2 obs
● 2026-06-29 00:28:10
●MXaspmx2.googlemail.com2026-03-24 → 2026-06-29 · 3 obs
● 2026-03-24 07:32:34
● 2026-06-29 00:28:10
●MXaspmx3.googlemail.com2026-03-24 → 2026-06-29 · 3 obs
● 2026-03-24 07:32:34
● 2026-06-29 00:28:10
●MXaspmx4.googlemail.com2026-03-24 → 2026-06-29 · 3 obs
● 2026-03-24 07:32:34
● 2026-06-29 00:28:10
●MXaspmx5.googlemail.com2026-03-24 → 2026-06-29 · 3 obs
● 2026-03-24 07:32:34
● 2026-06-29 00:28:10
○A192.0.78.242015-08-07 → 2020-03-18 · 4 obs
● 2020-03-18 07:25:46
○ 2026-03-24 07:32:34
○ 2026-06-29 00:28:10
○A192.0.78.252015-08-07 → 2020-03-18 · 4 obs
● 2020-03-18 07:25:46
○ 2026-03-24 07:32:34
○ 2026-06-29 00:28:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| mathoverflow.org | ns06.domaincontrol.com, ns05.domaincontrol.com | - |
✅ Authoritative Response
Server:97.74.102.3
NS records: ns06.domaincontrol.com, ns05.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathoverflow.org (unsigned zone)
⏱️ Timing
Total: 2115ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns05.domaincontrol.com, ns06.domaincontrol.com |
| MX | 7 | aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 20)... |
| TXT | 1 | google-site-verification=NJhnIsmDOisWhdc |
| HTTPS | 1 | {"priority":0,"target":"mathoverflow.net |
| SOA | 1 | ns05.domaincontrol.com dns.jomax.net |
Analysis
Name Servers
mathoverflow.org is delegated to two name servers: ns05.domaincontrol.com and ns06.domaincontrol.com.
mathoverflow.org uses the same name servers as several other domains — among them livintheadventure.com, whninc.net, criticsdiary.com and two more.
ns05.domaincontrol.com and ns06.domaincontrol.com each resolve to two IP addresses: ns05.domaincontrol.com points to 97.74.102.3 and 2603:5:2160::3, while ns06.domaincontrol.com points to 173.201.70.3 and 2603:5:2260::3.
Mail Servers
mathoverflow.org is handled by 7 mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and 4 other.
mathoverflow.org has at least partial mail server overlap with other domains such as ns500821.ns500794.ns500821.ns500821.ns500795.ns500821.ns500794.ns500821.ns500821.ns500790.lustypartnersfinder.com, embeddrive.net, ns500795.ns500795.ns500795.ns500821.ns500821.ns500821.ns500821.ns500795.ns500794.ns500821.ns500821.ns500795.ns500790.ns500795.lustypartnersfinder.com and two more.
These mail servers commonly co-occur with mail servers aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and 3 others.
Hostnames that resolve to two IP addresses:
aspmx2.googlemail.com points to 108.177.123.27 and 2800:3f0:4003:c0f::1b.
aspmx3.googlemail.com points to 172.253.116.26 and 2a00:1450:400b:c02::1a.
aspmx4.googlemail.com points to 192.178.223.27 and 2a00:1450:4009:c0f::1b.
aspmx5.googlemail.com points to 172.253.157.26 and 2a00:1450:400c:c23::1b.
aspmx.l.google.com points to 142.251.163.26 and 2607:f8b0:4004:c08::1b.
alt1.aspmx.l.google.com points to 108.177.123.26 and 2800:3f0:4003:c0f::1b.
alt2.aspmx.l.google.com points to 172.253.116.26 and 2a00:1450:400b:c02::1a.
aspmx2.googlemail.com and alt1.aspmx.l.google.com are host names that each point to 2800:3f0:4003:c0f::1b IP addresses.
aspmx3.googlemail.com and alt2.aspmx.l.google.com are host names that each point to 2a00:1450:400b:c02::1a IP addresses.
aspmx3.googlemail.com and alt2.aspmx.l.google.com are host names that each point to 172.253.116.26 IP addresses.