o4.sgmail.github.com - dns.ninja
o4.sgmail.github.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 192.254.112.99🇺🇸 ASN-SENDGRID192.254.112.0/20 Twilio, Inc. 1801 California Street Suite 500 Denver CO 80202 United States | ||||||
| PTR | o4.sgmail.github.com | ||||||
| MX | mxa.mailgun.org ⭐ | ||||||
| A | 34.36.182.139🇺🇸 Google34.32.0.0/11 | ||||||
| PTR | 139.182.36.34.bc.googleusercontent.com | ||||||
| MX | mxb.mailgun.org ⭐ | ||||||
| A | 34.149.254.5🇺🇸 Google34.148.0.0/14 | ||||||
| PTR | 5.254.149.34.bc.googleusercontent.com | ||||||
sgmail.github.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 167.89.125.30🇺🇸 ASN-SENDGRID167.89.124.0/23 Twilio, Inc. 1801 California Street Suite 500 Denver CO 80202 United States | ||||||
| MX | mx.sendgrid.net ⭐ | ||||||
| TXT | v=spf1 ip4:192.30.252.0/22 include:sendgrid.net ~all | ||||||
WOT: SAFE (64/100)
PTR for
Same first word
o4.com |
o4.dk |
o4.ro |
o4.su |
o4.cz |
o4.eu |
o4.ru |
o4.nl |
o4.cn |
o4.fi |
o4.com.br |
o4.se |
o4.com.au |
o4.be |
o4.hu |
o4.company |
o4.network |
o4.no |
o4.de |
o4.org |
o4.pl |
Similar names
4o.com.br |
4o.hu |
4o.vc |
4o.com.cn |
4o.net |
4o.fr |
4o.ru |
4o.pw |
4o.su |
4o.cc |
4o.cz |
4o.no |
4o.nl |
4o.pl |
4o.com |
4o.ai |
4o.be |
4o.dk |
4o.se |
DNS History
3 records (3 active, 0 former)
●MXmxa.mailgun.org2026-02-23 → 2026-07-23 · 2 obs
● 2026-07-23 11:21:12
●MXmxb.mailgun.org2026-02-23 → 2026-07-23 · 2 obs
● 2026-07-23 11:21:12
●A192.254.112.992026-02-23 → 2026-07-23 · 2 obs
● 2026-07-23 11:21:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| github.com | ns-520.awsdns-01.net, ns-421.awsdns-52.com, ns-1707.awsdns-21.co.uk, ns-1283.awsdns-32.org... | 2 records |
✅ Authoritative Response
Server:198.51.45.72
NS records: ns-520.awsdns-01.net, ns-421.awsdns-52.com, ns-1707.awsdns-21.co.uk, ns-1283.awsdns-32.org, dns1.p08.nsone.net, dns2.p08.nsone.net, dns3.p08.nsone.net, dns4.p08.nsone.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for github.com (unsigned zone)
⏱️ Timing
Total: 329ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 192.254.112.99 |
| MX | 2 | mxa.mailgun.org (pri: 10), mxb.mailgun.org (pri: 10) |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-421.awsdns-52.com, ns-421.awsdns-52.com)
Analysis
IP Addresses
o4.sgmail.github.com resolves to one IP address: 192.254.112.99.
Mail Servers
Mail for o4.sgmail.github.com is handled by two mail servers — mxa.mailgun.org and mxb.mailgun.org.
o4.sgmail.github.com uses an identical mail server configuration to several other domains — among them chhipa.com, asvclean.com, chatchek.com and two more.
o4.sgmail.github.com has at least partial mail server overlap with other domains such as baypointflorida.org, mccabebarton.com, automotoworld.info and two more.
These mail servers commonly appear together with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two other mail servers.
mxa.mailgun.org → 34.36.182.139 and mxb.mailgun.org → 34.149.254.5: one IP number per host name.