refcalc.com - dns.ninja
refcalc.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1784864577 | ||||||
Same first word
refcalc.com |
refcalc.appspot.com |
Similar names
calcref.com |
accelrf.com |
clearcf.com |
facelcr.com |
freccla.com |
clearfc.com |
carelcf.org |
clearfc.co.uk |
careflc.gold |
realcfc.com |
clefarc.com |
cflcare.com |
fercalc.com |
cfcreal.com.br |
DNS History
14 records (9 active, 5 former)
●MXalt1.aspmx.l.google.com2015-07-22 → 2026-07-24 · 2 obs
● 2026-07-24 04:10:50
●MXalt2.aspmx.l.google.com2015-07-22 → 2026-07-24 · 2 obs
● 2026-07-24 04:10:50
●MXalt3.aspmx.l.google.com2015-07-22 → 2026-07-24 · 2 obs
● 2026-07-24 04:10:50
●MXalt4.aspmx.l.google.com2015-07-22 → 2026-07-24 · 2 obs
● 2026-07-24 04:10:50
●MXaspmx.l.google.com2015-07-22 → 2026-07-24 · 2 obs
● 2026-07-24 04:10:50
○A2a02:2350:5:104:8a40:0:b1e5:f23e2019-04-01 → 2019-04-01 · 4 obs
● 2019-04-01 21:39:38
○ 2026-02-26 14:33:34
○ 2026-07-24 04:10:50
●A2a02:2350:5:10b:b1:e5f2:3ea9:7f4f2026-02-26 → 2026-07-24 · 3 obs
● 2026-02-26 14:33:34
● 2026-07-24 04:10:50
○A46.30.212.1082015-07-22 → 2015-12-08 · 4 obs
● 2015-12-08 02:12:18
○ 2016-06-20 08:39:28
○ 2026-07-24 04:10:50
○A46.30.213.1272017-02-18 → 2017-02-18 · 4 obs
● 2017-02-18 22:53:50
○ 2019-04-01 21:39:38
○ 2026-07-24 04:10:50
○A46.30.213.662016-06-20 → 2016-06-20 · 4 obs
● 2016-06-20 08:39:28
○ 2017-02-18 22:53:50
○ 2026-07-24 04:10:50
●A46.30.213.862026-02-26 → 2026-07-24 · 3 obs
● 2026-02-26 14:33:34
● 2026-07-24 04:10:50
○A46.30.215.412019-04-01 → 2019-04-01 · 4 obs
● 2019-04-01 21:39:38
○ 2026-02-26 14:33:34
○ 2026-07-24 04:10:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| refcalc.com | ns01.one.com, ns02.one.com | 4 records |
✅ Authoritative Response
Server:185.10.11.10
NS records: ns01.one.com, ns02.one.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 421ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 46.30.213.86 |
| AAAA | 1 | 2a02:2350:5:10b:b1:e5f2:3ea9:7f4f |
| NS | 2 | ns01.one.com, ns02.one.com |
| MX | 5 | alt4.aspmx.l.google.com (pri: 50), aspmx.l.google.com (pri: 10)... |
| SOA | 1 | ns01.one.com hostmaster.one.com |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns01.one.com, ns01.one.com, ns02.one.com...)
Analysis
IP Addresses
refcalc.com directs to two IP numbers, 46.30.213.86 and 2a02:2350:5:10b:b1:e5f2:3ea9:7f4f
bueroteam-hamburg.de, hovering.dk, skyddsanglar.se and two other host names share IP numbers with refcalc.com.
Name Servers
refcalc.com has two authoritative name servers — ns01.one.com and ns02.one.com.
refcalc.com uses the same name servers as several other domains — among them lijstdedecker.com, tpl.se, sportsidiot.no and two more.
Both ns01.one.com and ns02.one.com have two IP addresses each. ns01.one.com resolves to 195.206.121.10 and 2001:67c:28cc::10; ns02.one.com resolves to 185.10.11.10 and 2001:67c:3c0::10.
Mail Servers
Mail for refcalc.com is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
refcalc.com has at least partial mail server overlap with other domains such as omnicreative.com, ns500758.ns500698.ns500759.ns500758.ns500698.ns500735.ns500708.ns500576.ns500576.ns500686.ns500576.ns500619.ns500619.trackreceptor.com, ns500758.ns500759.ns500758.ns500759.ns500698.ns500698.ns500735.ns500736.ns500735.ns500708.ns500708.ns500708.ns500708.ns500652.trackreceptor.com and two more.
These mail servers commonly co-occur with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 others.
Hostnames that resolve to two IP addresses:
aspmx.l.google.com resolves to 172.253.122.27 and 2607:f8b0:4004:c19::1a.
alt1.aspmx.l.google.com resolves to 108.177.123.27 and 2800:3f0:4003:c0f::1b.
alt2.aspmx.l.google.com resolves to 172.253.116.27 and 2a00:1450:400b:c02::1a.
alt3.aspmx.l.google.com resolves to 192.178.223.27 and 2a00:1450:4009:c0f::1a.
alt4.aspmx.l.google.com resolves to 172.253.157.27 and 2a00:1450:400c:c23::1b.