reference.guru - dns.ninja
reference.guru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns2.afternic.com ⭐ | ||||||
| A | 2603:5:2226::45🇺🇸 GODADDY-DNS2603:5:2220::/44 | ||||||
| PTR | ns2.afternic.com | ||||||
| A | 173.201.66.69🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns2.afternic.com | ||||||
| NS | ns1.afternic.com | ||||||
| A | 2603:5:2126::45🇺🇸 GODADDY-DNS2603:5:2120::/44 | ||||||
| PTR | ns1.afternic.com | ||||||
| A | 97.74.98.69🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns1.afternic.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns2.afternic.comdns@jomax.net serial=1 | ||||||
guru
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | v0n0.nic.guru ⭐ | ||||||
| NS | v0n1.nic.guru | ||||||
| NS | v0n2.nic.guru | ||||||
| NS | v0n3.nic.guru | ||||||
| NS | v2n0.nic.guru | ||||||
| NS | v2n1.nic.guru | ||||||
| SOA | v0n0.nic.guruhostmaster@donuts.email serial=1782780978 | ||||||
Same first word
Similar names
DNS History
10 records (4 active, 6 former)
●NSns1.afternic.com2026-03-12 → 2026-06-30 · 3 obs
● 2026-03-12 11:33:16
● 2026-06-30 01:18:26
○NSns1.digitalocean.com2016-12-11 → 2016-12-11 · 3 obs
○ 2026-03-12 11:33:16
○ 2026-06-30 01:18:26
●NSns2.afternic.com2026-03-12 → 2026-06-30 · 3 obs
● 2026-03-12 11:33:16
● 2026-06-30 01:18:26
○NSns2.digitalocean.com2016-12-11 → 2016-12-11 · 3 obs
○ 2026-03-12 11:33:16
○ 2026-06-30 01:18:26
○NSns3.digitalocean.com2016-12-11 → 2016-12-11 · 3 obs
○ 2026-03-12 11:33:16
○ 2026-06-30 01:18:26
○MXmxa.mailgun.org2016-12-11 → 2016-12-11 · 3 obs
○ 2026-03-12 11:33:16
○ 2026-06-30 01:18:26
○MXmxb.mailgun.orgx.reference.guru2016-12-11 → 2016-12-11 · 3 obs
○ 2026-03-12 11:33:16
○ 2026-06-30 01:18:26
●A13.248.169.482026-03-12 → 2026-06-30 · 3 obs
● 2026-03-12 11:33:16
● 2026-06-30 01:18:26
○A45.55.28.1272016-12-11 → 2016-12-11 · 3 obs
○ 2026-03-12 11:33:16
○ 2026-06-30 01:18:26
●A76.223.54.1462026-03-12 → 2026-06-30 · 3 obs
● 2026-03-12 11:33:16
● 2026-06-30 01:18:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| guru | v2n1.nic.guru, v0n3.nic.guru, v0n1.nic.guru, v0n0.nic.guru... | - |
| reference.guru | ns2.afternic.com, ns1.afternic.com | - |
✅ Authoritative Response
Server:173.201.66.69
NS records: ns2.afternic.com, ns1.afternic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for reference.guru (unsigned zone)
⏱️ Timing
Total: 162ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 76.223.54.146, 13.248.169.48 |
| NS | 2 | ns1.afternic.com, ns2.afternic.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns2.afternic.com dns.jomax.net |
Analysis
IP Addresses
reference.guru points to the IP addresses 13.248.169.48 and 76.223.54.146
Additional host names — mason.city, udqa.com, 108.177.161.83.rdns.ubiquity.io and two others — share IP numbers with reference.guru.
Name Servers
reference.guru is served by two delegated name servers, ns1.afternic.com and ns2.afternic.com.
reference.guru shares its name server setup with other domains, including boydiet.com, luffy6435.mangateam.com, lpdisplay.com and two others.
The name servers of reference.guru overlap at least partially with those of other domains — among them haddw.com, barigold.com, dornisch.com and two more.
These name servers commonly appear alongside the name servers verification-d3jclucsp89ganyqbydeny.ns101.verify.hn and verification-cyhywqfdn9htjdazlzlpgm.ns101.verify.hn.
Each of the two host names carries two IP addresses: ns1.afternic.com points to 97.74.98.69 and 2603:5:2126::45, and ns2.afternic.com points to 173.201.66.69 and 2603:5:2226::45.