r-calc.com - robtex.com

r-calc.com

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:541c🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:b960🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.84.28Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.185.96🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScheryl.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a53🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcheryl.ns.cloudflare.com
A2803:f800:50::6ca2:c053🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcheryl.ns.cloudflare.com
A2a06:98c1:50::ac40:2053🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcheryl.ns.cloudflare.com
A108.162.192.83🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcheryl.ns.cloudflare.com
A172.64.32.83🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcheryl.ns.cloudflare.com
A173.245.58.83🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcheryl.ns.cloudflare.com
NSmitch.ns.cloudflare.com
A2606:4700:58::adf5:3bd0🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmitch.ns.cloudflare.com
A2803:f800:50::6ca2:c1d0🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmitch.ns.cloudflare.com
A2a06:98c1:50::ac40:21d0🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmitch.ns.cloudflare.com
A108.162.193.208🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmitch.ns.cloudflare.com
A172.64.33.208🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmitch.ns.cloudflare.com
A173.245.59.208🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmitch.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.84.28, 172.67.185.96
IPv6 hints2606:4700:3033::6815:541c, 2606:4700:3035::ac43:b960
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=239, name=cloudflare-ech.com
SOAcheryl.ns.cloudflare.comdns@cloudflare.com serial=2409496462

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1785251697

Same first word

r-calc.com

Similar names

acl-cr.com
carl-c.dk
cl-car.cn
car-cl.com
lc-arc.com
alc-rc.com
car-lc.com

DNS History

24 records (6 active, 18 former)

20162017201820192020202120222023202420252026NScheryl.ns.cloudflare.commitch.ns.cloudflare.comdns1.registrar-servers.comdns2.registrar-servers.comdns3.registrar-servers.comdns4.registrar-servers.comdns5.registrar-servers.comns1.afternic.comns2.afternic.comMXeforward1.registrar-servers.comeforward2.registrar-servers.comeforward3.registrar-servers.comeforward4.registrar-servers.comeforward5.registrar-servers.comA104.21.84.28172.67.185.962606:4700:3033::6815:541c2606:4700:3035::ac43:b96013.248.169.48162.255.119.144192.64.119.1612606:4700:3030::6815:541c2606:4700:3036::ac43:b96076.223.54.146
●NScheryl.ns.cloudflare.com2026-06-06 → 2026-07-28 · 3 obs
○ 2026-05-01 06:09:44
● 2026-06-06 17:21:46
● 2026-07-28 15:26:54
○NSdns1.registrar-servers.com2015-06-18 → 2018-08-03 · 4 obs
● 2015-06-18 17:30:44
● 2018-08-03 11:00:54
○ 2026-03-31 00:55:00
○ 2026-07-28 15:26:54
○NSdns2.registrar-servers.com2015-06-18 → 2018-08-03 · 4 obs
● 2015-06-18 17:30:44
● 2018-08-03 11:00:54
○ 2026-03-31 00:55:00
○ 2026-07-28 15:26:54
○NSdns3.registrar-servers.com2015-06-18 → 2016-09-12 · 4 obs
● 2015-06-18 17:30:44
● 2016-09-12 08:09:38
○ 2016-12-31 09:29:14
○ 2026-07-28 15:26:54
○NSdns4.registrar-servers.com2015-06-18 → 2016-09-12 · 4 obs
● 2015-06-18 17:30:44
● 2016-09-12 08:09:38
○ 2016-12-31 09:29:14
○ 2026-07-28 15:26:54
○NSdns5.registrar-servers.com2015-06-18 → 2016-09-12 · 4 obs
● 2015-06-18 17:30:44
● 2016-09-12 08:09:38
○ 2016-12-31 09:29:14
○ 2026-07-28 15:26:54
●NSmitch.ns.cloudflare.com2026-06-06 → 2026-07-28 · 3 obs
○ 2026-05-01 06:09:44
● 2026-06-06 17:21:46
● 2026-07-28 15:26:54
○NSns1.afternic.com2026-03-31 → 2026-05-01 · 5 obs
○ 2018-08-03 11:00:54
● 2026-03-31 00:55:00
● 2026-05-01 06:09:44
○ 2026-06-06 17:21:46
○ 2026-07-28 15:26:54
○NSns2.afternic.com2026-03-31 → 2026-05-01 · 5 obs
○ 2018-08-03 11:00:54
● 2026-03-31 00:55:00
● 2026-05-01 06:09:44
○ 2026-06-06 17:21:46
○ 2026-07-28 15:26:54
○MXeforward1.registrar-servers.com2015-06-18 → 2018-08-03 · 4 obs
● 2015-06-18 17:30:44
● 2018-08-03 11:00:54
○ 2026-03-31 00:55:00
○ 2026-07-28 15:26:54
○MXeforward2.registrar-servers.com2015-06-18 → 2018-08-03 · 4 obs
● 2015-06-18 17:30:44
● 2018-08-03 11:00:54
○ 2026-03-31 00:55:00
○ 2026-07-28 15:26:54
○MXeforward3.registrar-servers.com2015-06-18 → 2018-08-03 · 4 obs
● 2015-06-18 17:30:44
● 2018-08-03 11:00:54
○ 2026-03-31 00:55:00
○ 2026-07-28 15:26:54
○MXeforward4.registrar-servers.com2015-06-18 → 2018-08-03 · 4 obs
● 2015-06-18 17:30:44
● 2018-08-03 11:00:54
○ 2026-03-31 00:55:00
○ 2026-07-28 15:26:54
○MXeforward5.registrar-servers.com2015-06-18 → 2018-08-03 · 4 obs
● 2015-06-18 17:30:44
● 2018-08-03 11:00:54
○ 2026-03-31 00:55:00
○ 2026-07-28 15:26:54
●A104.21.84.282026-06-06 → 2026-07-28 · 3 obs
○ 2026-05-01 06:09:44
● 2026-06-06 17:21:46
● 2026-07-28 15:26:54
○A13.248.169.482026-03-31 → 2026-05-01 · 5 obs
○ 2018-08-03 11:00:54
● 2026-03-31 00:55:00
● 2026-05-01 06:09:44
○ 2026-06-06 17:21:46
○ 2026-07-28 15:26:54
○A162.255.119.1442016-12-31 → 2018-08-03 · 5 obs
○ 2016-09-12 08:09:38
● 2016-12-31 09:29:14
● 2018-08-03 11:00:54
○ 2026-03-31 00:55:00
○ 2026-07-28 15:26:54
●A172.67.185.962026-06-06 → 2026-07-28 · 3 obs
○ 2026-05-01 06:09:44
● 2026-06-06 17:21:46
● 2026-07-28 15:26:54
○A192.64.119.1612015-06-18 → 2016-09-12 · 4 obs
● 2015-06-18 17:30:44
● 2016-09-12 08:09:38
○ 2016-12-31 09:29:14
○ 2026-07-28 15:26:54
○A2606:4700:3030::6815:541c2026-06-06 → 2026-06-06 · 4 obs
○ 2026-05-01 06:09:44
● 2026-06-06 17:21:46
○ 2026-07-24 00:37:16
○ 2026-07-28 15:26:54
●A2606:4700:3033::6815:541c2026-07-24 → 2026-07-28 · 3 obs
○ 2026-06-06 17:21:46
● 2026-07-24 00:37:16
● 2026-07-28 15:26:54
●A2606:4700:3035::ac43:b9602026-07-24 → 2026-07-28 · 3 obs
○ 2026-06-06 17:21:46
● 2026-07-24 00:37:16
● 2026-07-28 15:26:54
○A2606:4700:3036::ac43:b9602026-06-06 → 2026-06-06 · 4 obs
○ 2026-05-01 06:09:44
● 2026-06-06 17:21:46
○ 2026-07-24 00:37:16
○ 2026-07-28 15:26:54
○A76.223.54.1462026-03-31 → 2026-05-01 · 5 obs
○ 2018-08-03 11:00:54
● 2026-03-31 00:55:00
● 2026-05-01 06:09:44
○ 2026-06-06 17:21:46
○ 2026-07-28 15:26:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comf.gtld-servers.net, e.gtld-servers.net, g.gtld-servers.net, j.gtld-servers.net...-
r-calc.comcheryl.ns.cloudflare.com, mitch.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.83

NS records: cheryl.ns.cloudflare.com, mitch.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for r-calc.com (unsigned zone)

⏱️ Timing

Total: 364ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.84.28, 172.67.185.96
AAAA22606:4700:3033::6815:541c, 2606:4700:3035::ac43:b960
NS2cheryl.ns.cloudflare.com, mitch.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1cheryl.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (cheryl.ns.cloudflare.com, cheryl.ns.cloudflare.com, cheryl.ns.cloudflare.com...)

Analysis

IP Addresses

r-calc.com directs to four IP numbers, which are 104.21.84.28, 172.67.185.96, 2606:4700:3033::6815:541c and 2606:4700:3035::ac43:b960.

Additional host names — dev.languagecoursesuk.co.uk, apsmotor.es, asatru-versand.com and two others — share IP numbers with r-calc.com.

Name Servers

Two name servers handle the delegation for r-calc.com: cheryl.ns.cloudflare.com and mitch.ns.cloudflare.com.

r-calc.com shares its name server setup with other domains, including defotomeisjes.com, johnjamesrevealed.com, clipapp.co and two others.

At least some of r-calc.com's name servers are shared with other domains, for example happilyevermejias.com, seuzi.com, fekwaz.click and two more.

These name servers tend to be used in conjunction with the name servers logan.ns.cloudflare.com.

Host names with 6 IP numbers:

cheryl.ns.cloudflare.com resolves to 108.162.192.83, 172.64.32.83 and 173.245.58.83 among others, with 3 other IP addresses in total.

mitch.ns.cloudflare.com resolves to 108.162.193.208, 172.64.33.208 and 173.245.59.208 among others, with 3 other IP addresses in total.