reference.guru - robtex.com
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=1775931446 | ||||||
Same first word
Similar names
DNS History
10 records (4 active, 6 former)
●NSns1.afternic.com2026-03-12 → 2026-04-11 · 3 obs
● 2026-03-12 11:33:16
● 2026-04-11 18:53:34
○NSns1.digitalocean.com2016-12-11 → 2016-12-11 · 3 obs
○ 2026-03-12 11:33:16
○ 2026-04-11 18:53:34
●NSns2.afternic.com2026-03-12 → 2026-04-11 · 3 obs
● 2026-03-12 11:33:16
● 2026-04-11 18:53:34
○NSns2.digitalocean.com2016-12-11 → 2016-12-11 · 3 obs
○ 2026-03-12 11:33:16
○ 2026-04-11 18:53:34
○NSns3.digitalocean.com2016-12-11 → 2016-12-11 · 3 obs
○ 2026-03-12 11:33:16
○ 2026-04-11 18:53:34
○MXmxa.mailgun.org2016-12-11 → 2016-12-11 · 3 obs
○ 2026-03-12 11:33:16
○ 2026-04-11 18:53:34
○MXmxb.mailgun.orgx.reference.guru2016-12-11 → 2016-12-11 · 3 obs
○ 2026-03-12 11:33:16
○ 2026-04-11 18:53:34
●A13.248.169.482026-03-12 → 2026-04-11 · 3 obs
● 2026-03-12 11:33:16
● 2026-04-11 18:53:34
○A45.55.28.1272016-12-11 → 2016-12-11 · 3 obs
○ 2026-03-12 11:33:16
○ 2026-04-11 18:53:34
●A76.223.54.1462026-03-12 → 2026-04-11 · 3 obs
● 2026-03-12 11:33:16
● 2026-04-11 18:53:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| guru | v0n0.nic.guru, v0n1.nic.guru, v0n2.nic.guru, v0n3.nic.guru... | 12 records |
| 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: 217ms | 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 |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (v0n0.nic.guru, v0n1.nic.guru, v0n2.nic.guru...)
Analysis
IP Addresses
reference.guru points to two IP numbers: 13.248.169.48 and 76.223.54.146.
Other host names such as 108.177.161.83.rdns.ubiquity.io, movie365.com, ictteam.com, policea.com and orlandoneurosurgeon.com share IPs with reference.guru.
Name Servers
reference.guru is delegated to two name servers: ns1.afternic.com and ns2.afternic.com.
reference.guru shares the same name server setup as boydiet.com, luffy6435.mangateam.com, lpdisplay.com, wmap.com and muscar.com.
reference.guru at least partially shares name servers with other domains, for instance haddw.com, barigold.com, dornisch.com, in-check.com and ghkm.com.
These name servers are commonly used together with verification-d3jclucsp89ganyqbydeny.ns101.verify.hn, verification-vesbet7nkettdw2mc9cgox.ns101.verify.hn and verification-cyhywqfdn9htjdazlzlpgm.ns101.verify.hn.
Host names with two IP numbers: ns1.afternic.com points to: 2603:5:2126::45 and 97.74.98.69; ns2.afternic.com points to: 2603:5:2226::45 and 173.201.66.69.