o1.sgmail.github.com - dns.ninja
o1.sgmail.github.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 192.254.114.176🇺🇸 ASN-SENDGRID192.254.112.0/20 Twilio, Inc. 1801 California Street Suite 500 Denver CO 80202 United States | ||||||
| PTR | o1.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
o1.org |
o1.de |
o1.co.kr |
o1.com |
o1.lt |
o1.net |
o1.wtf |
o1.ee |
o1.cn |
o1.su |
o1.nl |
o1.exchange |
o1.pl |
o1.kz |
o1.ru |
o1.eu |
o1.ro |
o1.no |
o1.se |
o1.be |
o1.cz |
o1.com.my |
o1.com.br |
o1.biz |
o1.ca |
o1.hu |
o1.dk |
o1.fr |
Similar names
1o.de |
1o.cn |
1o.co.uk |
1o.org |
1o.nl |
1o.se |
1o.am |
1o.cc |
1o.com |
1o.dk |
1o.ca |
1o.io |
1o.fi |
1o.ru |
1o.ro |
1o.cz |
1o.be |
1o.co |
1o.su |
1o.pl |
1o.co.kr |
1o.ph |
1o.fr |
1o.no |
1o.hu |
DNS History
3 records (3 active, 0 former)
●MXmxa.mailgun.org2017-03-07 → 2026-07-23 · 2 obs
● 2026-07-23 11:20:44
●MXmxb.mailgun.org2017-03-07 → 2026-07-23 · 2 obs
● 2026-07-23 11:20:44
●A192.254.114.1762017-03-07 → 2026-07-23 · 2 obs
● 2026-07-23 11:20:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net, b.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:198.51.44.72
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: 280ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 192.254.114.176 |
| 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
o1.sgmail.github.com resolves to just one IP address, 192.254.114.176.
Mail Servers
o1.sgmail.github.com is served by two mail servers, mxa.mailgun.org and mxb.mailgun.org.
Among the domains sharing a mail server setup with o1.sgmail.github.com are adaequa.com, gabisnika.com, liveshopperapp.com and two others.
There is at least a partial MX overlap between o1.sgmail.github.com and other domains, including getaffairs.com, bomotix.com, edechamps.fr and two others.
mxa.mailgun.org directs to 34.36.182.139 and mxb.mailgun.org directs to 34.149.254.5; each host name points to exactly one IP number.