githubio.org - robtex.com
githubio.org
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns1.icedns.is ⭐ | ||||||
| A | 82.221.143.41🇮🇸 ThorDC-AS82.221.143.0/24 Advania / Thor Data Center | ||||||
| PTR | dns1.icedns.is | ||||||
| NS | dns2.icedns.is | ||||||
| A | 82.221.139.80🇮🇸 ThorDC-AS82.221.139.0/24 Advania / Thor Data Center | ||||||
| MX | githubio.org ⭐ | ||||||
| SOA | dns1.icedns.isroot@dns.icedns.is 2026-03-05 #1 | ||||||
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=1785620279 | ||||||
MX for
githubio.org |
Same first word
githubio.org |
Similar names
DNS History
3 records (3 active, 0 former)
●MXgithubio.org2026-04-09 → 2026-08-01 · 2 obs
● 2026-04-09 15:56:54
● 2026-08-01 22:04:04
● 2026-08-01 22:04:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| githubio.org | dns1.icedns.is, dns2.icedns.is | - |
✅ Authoritative Response
Server:82.221.143.41
NS records: dns1.icedns.is, dns2.icedns.is
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for githubio.org (unsigned zone)
⏱️ Timing
Total: 896ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns1.icedns.is, dns2.icedns.is |
| MX | 1 | githubio.org (pri: 0) |
| SOA | 1 | dns1.icedns.is root.dns.icedns.is |
Analysis
Mail Server Role
githubio.org handles its own mail, functioning as its own mail server.
Name Servers
The NS records for githubio.org delegate to dns1.icedns.is and dns2.icedns.is.
githubio.org shares its NS records with other domains, for example oceanwin168.shop, turtlebard.one, mostere.com and two others.
githubio.org and other domains like bqaf.com share at least a portion of their name servers.
dns1.icedns.is → 82.221.143.41 and dns2.icedns.is → 82.221.139.80: one IP number per host name.
Mail Servers
githubio.org is served by just one mail server: githubio.org.