mathoverflow.com - dns.ninja
mathoverflow.com
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=1782658125 | ||||||
Same first word
mathoverflow.net |
mathoverflow.com |
mathoverflow.org |
DNS History
16 records (13 active, 3 former)
●NSdns1.name-services.com2015-05-29 → 2026-06-28 · 2 obs
● 2026-06-28 15:17:52
●NSdns2.name-services.com2015-05-29 → 2026-06-28 · 2 obs
● 2026-06-28 15:17:52
●NSdns3.name-services.com2015-05-29 → 2026-06-28 · 2 obs
● 2026-06-28 15:17:52
●NSdns4.name-services.com2015-05-29 → 2026-06-28 · 2 obs
● 2026-06-28 15:17:52
●NSdns5.name-services.com2015-05-29 → 2026-06-28 · 2 obs
● 2026-06-28 15:17:52
●MXalt1.aspmx.l.google.com2015-05-29 → 2026-06-28 · 2 obs
● 2026-06-28 15:17:52
●MXalt2.aspmx.l.google.com2015-05-29 → 2026-06-28 · 2 obs
● 2026-06-28 15:17:52
●MXaspmx.l.google.com2015-05-29 → 2026-06-28 · 2 obs
● 2026-06-28 15:17:52
●MXaspmx2.googlemail.com2015-05-29 → 2026-06-28 · 2 obs
● 2026-06-28 15:17:52
●MXaspmx3.googlemail.com2015-05-29 → 2026-06-28 · 2 obs
● 2026-06-28 15:17:52
●MXaspmx4.googlemail.com2015-05-29 → 2026-06-28 · 2 obs
● 2026-06-28 15:17:52
●MXaspmx5.googlemail.com2015-05-29 → 2026-06-28 · 2 obs
● 2026-06-28 15:17:52
●A64.98.135.82026-02-16 → 2026-06-28 · 3 obs
● 2026-02-16 05:17:50
● 2026-06-28 15:17:52
○A98.124.198.12015-05-29 → 2015-10-17 · 4 obs
● 2015-10-17 17:35:34
○ 2015-12-17 10:44:06
○ 2026-06-28 15:17:52
○A98.124.199.12015-05-29 → 2015-05-29 · 3 obs
○ 2026-02-16 05:17:50
○ 2026-06-28 15:17:52
○A98.124.199.82015-12-17 → 2020-02-25 · 5 obs
● 2015-12-17 10:44:06
● 2020-02-25 19:13:08
○ 2026-02-16 05:17:50
○ 2026-06-28 15:17:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, c.gtld-servers.net, m.gtld-servers.net, i.gtld-servers.net... | - |
| mathoverflow.com | dns1.name-services.com, dns2.name-services.com, dns3.name-services.com, dns4.name-services.com... | 10 records |
✅ Authoritative Response
Server:64.98.148.137
NS records: dns1.name-services.com, dns2.name-services.com, dns3.name-services.com, dns4.name-services.com, dns5.name-services.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathoverflow.com (unsigned zone)
⏱️ Timing
Total: 456ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 64.98.135.8 |
| NS | 5 | dns4.name-services.com, dns2.name-services.com... |
| MX | 7 | aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 20)... |
| TXT | 1 | google-site-verification=4dGL2uT74uDbw6- |
| SOA | 1 | dns1.name-services.com info.name-service |
📌 Glue Records Collected
Total: 10
Out-of-bailiwick: 10 (dns1.name-services.com, dns1.name-services.com, dns2.name-services.com...)
Analysis
IP Addresses
mathoverflow.com has exactly one IP address — 64.98.135.8.
arfonjones.com, airporttransfershemelhempstead.com, buzsies.com plus two other host names have IP numbers in common with mathoverflow.com.
Name Servers
Five name servers handle delegation for mathoverflow.com: dns1.name-services.com, dns2.name-services.com, dns3.name-services.com and two others.
mathoverflow.com shares at least some of its name servers with other domains, including pistrittomarble.com, lukali.com, onekeypmllc.com and two others.
These name servers are frequently paired with the name servers dns4.name-services.com and dns5.name-services.com.
Host names pointing to two IP addresses:
dns1.name-services.com directs traffic to 64.98.148.137 and 2604:4000:2800:2000:64:98:148:137.
dns2.name-services.com directs traffic to 216.40.47.201 and 2604:4000:0:d:216:40:47:201.
dns3.name-services.com directs traffic to 64.98.148.138 and 2604:4000:2800:2000:64:98:148:138.
dns4.name-services.com directs traffic to 216.40.47.202 and 2604:4000:0:d:216:40:47:202.
dns5.name-services.com directs traffic to 64.98.148.139 and 2604:4000:2800:2000:64:98:148:139.
Mail Servers
mathoverflow.com is handled by 7 mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and 4 other.
At least some of the mail servers used by mathoverflow.com are shared with other domains: ns500768.ns500759.ns500759.ns500758.ns500698.ns500735.ns500698.ns500698.ns500698.ns500576.ns500698.ns500686.ns500576.ns500619.trackreceptor.com, ns500698.ns500759.ns500759.ns500758.ns500735.ns500736.ns500698.ns500735.ns500736.ns500576.ns500576.ns500619.ns500686.ns500619.ns500576.trackreceptor.com, ns500731.ns500742.ns500731.ns500742.ns500671.ns500754.ns500688.ns500705.ns500705.ns500671.ns500705.ns500688.ns500291.ns500291.ns500153.tenderladiesbz.com and two others among them.
These mail servers are often deployed together with aspmx.l.google.com, alt2.aspmx.l.google.com, alt1.aspmx.l.google.com and 3 other mail servers.
Host names pointing to two IP addresses:
aspmx2.googlemail.com directs traffic to 108.177.123.26 and 2800:3f0:4003:c0f::1b.
aspmx3.googlemail.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1b.
aspmx4.googlemail.com directs traffic to 192.178.223.26 and 2a00:1450:4009:c0f::1a.
aspmx5.googlemail.com directs traffic to 172.253.157.27 and 2a00:1450:400c:c23::1b.
aspmx.l.google.com directs traffic to 142.251.163.27 and 2607:f8b0:4004:c23::1b.
alt1.aspmx.l.google.com directs traffic to 108.177.123.26 and 2800:3f0:4003:c0f::1b.
alt2.aspmx.l.google.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1a.
Both aspmx2.googlemail.com and alt1.aspmx.l.google.com resolve to 2800:3f0:4003:c0f::1b IP addresses each.
Both aspmx2.googlemail.com and alt1.aspmx.l.google.com resolve to 108.177.123.26 IP addresses each.
Both aspmx3.googlemail.com and alt2.aspmx.l.google.com resolve to 172.253.116.26 IP addresses each.