rferee.dev - dns.ninja
rferee.dev
dev
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns-tld1.charlestonroadregistry.com ⭐ | ||||||
| NS | ns-tld2.charlestonroadregistry.com | ||||||
| NS | ns-tld3.charlestonroadregistry.com | ||||||
| NS | ns-tld4.charlestonroadregistry.com | ||||||
| NS | ns-tld5.charlestonroadregistry.com | ||||||
| SOA | ns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=1 | ||||||
🔒 HSTS Preload (+subdomains)
Subdomains
resolver.rferee.dev |
Same first word
rferee.dev |
Similar names
DNS History
9 records (9 active, 0 former)
●NSada.lovelace.ns.rfer.ee2026-02-17 → 2026-06-27 · 2 obs
● 2026-06-27 20:09:48
●NSgrace.hopper.ns.rfer.ee2026-02-17 → 2026-06-27 · 2 obs
● 2026-06-27 20:09:48
●NSmargaret.hamilton.ns.rfer.ee2026-02-17 → 2026-06-27 · 2 obs
● 2026-06-27 20:09:48
●NSmary.wilkes.ns.rfer.ee2026-02-17 → 2026-06-27 · 2 obs
● 2026-06-27 20:09:48
●NSradia.perlman.ns.rfer.ee2026-02-17 → 2026-06-27 · 2 obs
● 2026-06-27 20:09:48
●MXmail.protonmail.ch2026-02-17 → 2026-06-27 · 2 obs
● 2026-06-27 20:09:48
●MXmailsec.protonmail.ch2026-02-17 → 2026-06-27 · 2 obs
● 2026-06-27 20:09:48
●A2a01:4f9:c012:ca1f::12026-02-17 → 2026-06-27 · 2 obs
● 2026-06-27 20:09:48
●A37.27.218.332026-02-17 → 2026-06-27 · 2 obs
● 2026-06-27 20:09:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dev | ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com... | - |
| rferee.dev | mary.wilkes.ns.rfer.ee, radia.perlman.ns.rfer.ee, margaret.hamilton.ns.rfer.ee, ada.lovelace.ns.rfer.ee... | - |
✅ Authoritative Response
Server:54.37.235.153
NS records: mary.wilkes.ns.rfer.ee, radia.perlman.ns.rfer.ee, margaret.hamilton.ns.rfer.ee, ada.lovelace.ns.rfer.ee, grace.hopper.ns.rfer.ee
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1447ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.27.218.33 |
| AAAA | 1 | 2a01:4f9:c012:ca1f::1 |
| NS | 5 | grace.hopper.ns.rfer.ee, radia.perlman.ns.rfer.ee... |
| MX | 2 | mailsec.protonmail.ch (pri: 20), mail.protonmail.ch (pri: 10) |
| TXT | 4 | v=spf1 include:_spf.protonmail.ch includ, openai-domain-verification=dv-pPP6Q2qAeq... |
| SOA | 1 | ada.lovelace.ns.rfer.ee admin.rferee.dev |
Analysis
Hierarchy
resolver.rferee.dev is delegated beneath rferee.dev.
IP Addresses
rferee.dev points to the IP addresses 37.27.218.33 and 2a01:4f9:c012:ca1f::1
Two other host names, along with nesuprantu.lt, rfer.ee and ada.lovelace.ns.rfer.ee, also share IP numbers with rferee.dev.
Name Servers
rferee.dev delegates to five name servers: margaret.hamilton.ns.rfer.ee, grace.hopper.ns.rfer.ee, ada.lovelace.ns.rfer.ee and two others.
Some name servers delegated to rferee.dev are also used by other domains, notably nesuprantu.lt and rfer.ee.
These name servers frequently co-occur with the name servers radia.perlman.ns.rfer.ee and mary.wilkes.ns.rfer.ee.
Host names that have two IP addresses:
margaret.hamilton.ns.rfer.ee maps to two IP addresses — 54.37.235.153 and 2001:41d0:601:1100::445c.
grace.hopper.ns.rfer.ee maps to two IP addresses — 135.181.93.191 and 2a01:4f9:c012:ae17::1.
ada.lovelace.ns.rfer.ee maps to two IP addresses — 37.27.218.33 and 2a01:4f9:c012:ca1f::1.
mary.wilkes.ns.rfer.ee maps to two IP addresses — 45.77.17.75 and 2001:19f0:7002:101b:5400:5ff:fe35:3ecb.
Host names that point to one IP address:
radia.perlman.ns.rfer.ee points to the IP address 140.238.223.77.
Mail Servers
rferee.dev is served by two mail servers, mail.protonmail.ch and mailsec.protonmail.ch.
Among the domains sharing a mail server setup with rferee.dev are dhdmdkd.com, fotis.photos, pappers.eu and two others.
There is at least a partial MX overlap between rferee.dev and other domains, including aceyourbusiness.com, ip0.ch, davidpressman.com and two others.
mail.protonmail.ch points to 176.119.200.128, 185.70.42.128 and 185.205.70.128. mailsec.protonmail.ch points to 176.119.200.129, 185.70.42.129 and 185.205.70.129. Both hosts resolve to three IP numbers.