`studycpr.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:1350^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:b9a9^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.19.80^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.185.169^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dawn.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a6a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dawn.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c06a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dawn.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:206a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dawn.ns.cloudflare.com`
		A	108.162.192.106^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dawn.ns.cloudflare.com`
		A	172.64.32.106^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dawn.ns.cloudflare.com`
		A	173.245.58.106^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dawn.ns.cloudflare.com`
NS	`evan.ns.cloudflare.com`
		A	2606:4700:58::adf5:3ba5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`evan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1a5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`evan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21a5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`evan.ns.cloudflare.com`
		A	108.162.193.165^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`evan.ns.cloudflare.com`
		A	172.64.33.165^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`evan.ns.cloudflare.com`
		A	173.245.59.165^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`evan.ns.cloudflare.com`
MX	`mx00.1and1.com` ⭐
		A	74.208.5.3^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
			PTR	`mx00.perfora.net`
MX	`mx01.1and1.com` ⭐
		A	74.208.5.21^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
			PTR	`mx01.perfora.net`
TXT	`v=spf1 include:_spf-us.ionos.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.19.80, 172.67.185.169
		IPv6	2606:4700:3031::6815:1350, 2606:4700:3033::ac43:b9a9
SOA	`dawn.ns.cloudflare.com`dns@cloudflare.com serial=2397158990

`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.net`nstld@verisign-grs.com serial=1771291435

Previously MX for

studycpr.com

Same first word

studycpr.com

Similar names

prcstudy.com

DNS History

18 records (8 active, 10 former)

●NSdawn.ns.cloudflare.com2026-03-12 → 2026-03-12 · 3 obs

○ 2020-01-09 17:34:48
● 2026-03-12 04:52:40
● 2026-03-12 07:50:38

●NSevan.ns.cloudflare.com2026-03-12 → 2026-03-12 · 3 obs

○ 2020-01-09 17:34:48
● 2026-03-12 04:52:40
● 2026-03-12 07:50:38

○NSns1039.ui-dns.com2020-01-09 → 2020-01-09 · 4 obs

○ 2017-02-02 02:35:02
● 2020-01-09 17:34:48
○ 2026-03-12 04:52:40
○ 2026-03-12 07:50:38

○NSns1056.ui-dns.org2020-01-09 → 2020-01-09 · 4 obs

○ 2017-02-02 02:35:02
● 2020-01-09 17:34:48
○ 2026-03-12 04:52:40
○ 2026-03-12 07:50:38

○NSns1071.ui-dns.biz2020-01-09 → 2020-01-09 · 4 obs

○ 2017-02-02 02:35:02
● 2020-01-09 17:34:48
○ 2026-03-12 04:52:40
○ 2026-03-12 07:50:38

○NSns1112.ui-dns.de2020-01-09 → 2020-01-09 · 4 obs

○ 2017-02-02 02:35:02
● 2020-01-09 17:34:48
○ 2026-03-12 04:52:40
○ 2026-03-12 07:50:38

○NSns1315.websitewelcome.com2015-08-11 → 2017-02-02 · 4 obs

● 2015-08-11 16:07:20
● 2017-02-02 02:35:02
○ 2020-01-09 17:34:48
○ 2026-03-12 07:50:38

○NSns1316.websitewelcome.com2015-08-11 → 2017-02-02 · 4 obs

● 2015-08-11 16:07:20
● 2017-02-02 02:35:02
○ 2020-01-09 17:34:48
○ 2026-03-12 07:50:38

●MXmx00.1and1.com2020-01-09 → 2026-03-12 · 3 obs

○ 2017-02-02 02:35:02
● 2020-01-09 17:34:48
● 2026-03-12 07:50:38

●MXmx01.1and1.com2020-01-09 → 2026-03-12 · 3 obs

○ 2017-02-02 02:35:02
● 2020-01-09 17:34:48
● 2026-03-12 07:50:38

○MXstudycpr.com2015-08-11 → 2017-02-02 · 4 obs

● 2015-08-11 16:07:20
● 2017-02-02 02:35:02
○ 2020-01-09 17:34:48
○ 2026-03-12 07:50:38

●A104.21.19.802026-03-12 → 2026-03-12 · 3 obs

○ 2020-01-09 17:34:48
● 2026-03-12 04:52:40
● 2026-03-12 07:50:38

●A172.67.185.1692026-03-12 → 2026-03-12 · 3 obs

○ 2020-01-09 17:34:48
● 2026-03-12 04:52:40
● 2026-03-12 07:50:38

○A192.185.180.2352015-08-11 → 2017-02-02 · 4 obs

● 2015-08-11 16:07:20
● 2017-02-02 02:35:02
○ 2020-01-09 17:34:48
○ 2026-03-12 07:50:38

●A2606:4700:3031::6815:13502026-03-12 → 2026-03-12 · 3 obs

○ 2020-01-09 17:34:48
● 2026-03-12 04:52:40
● 2026-03-12 07:50:38

●A2606:4700:3033::ac43:b9a92026-03-12 → 2026-03-12 · 3 obs

○ 2020-01-09 17:34:48
● 2026-03-12 04:52:40
● 2026-03-12 07:50:38

○A2607:f1c0:100f:f000::2672020-01-09 → 2020-01-09 · 4 obs

○ 2017-02-02 02:35:02
● 2020-01-09 17:34:48
○ 2026-03-12 04:52:40
○ 2026-03-12 07:50:38

○A74.208.236.2482020-01-09 → 2020-01-09 · 4 obs

○ 2017-02-02 02:35:02
● 2020-01-09 17:34:48
○ 2026-03-12 04:52:40
○ 2026-03-12 07:50:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, f.gtld-servers.net, d.gtld-servers.net, l.gtld-servers.net...	-
studycpr.com	dawn.ns.cloudflare.com, evan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server: 108.162.193.165

NS records: dawn.ns.cloudflare.com, evan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studycpr.com (unsigned zone)

⏱️ Timing

Total: 387ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.19.80, 172.67.185.169`
AAAA	2	`2606:4700:3033::ac43:b9a9, 2606:4700:3031::6815:1350`
NS	2	`dawn.ns.cloudflare.com, evan.ns.cloudflare.com`
MX	2	`mx00.1and1.com (pri: 10), mx01.1and1.com (pri: 10)`
TXT	1	`v=spf1 include:_spf-us.ionos.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dawn.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

studycpr.com points to four IP numbers: 2606:4700:3031::6815:1350, 2606:4700:3033::ac43:b9a9, 104.21.19.80 and 172.67.185.169.

Other host names, for instance havspaddeln.se, hugproperty.com, gundemartvin.com, metal-war.com and teenz.me share IP numbers with studycpr.com.

Name Servers

Delegation for studycpr.com rests with two name servers, dawn.ns.cloudflare.com and evan.ns.cloudflare.com.

studycpr.com shares the same name server setup as other domains, including hbduibi.com, hzyxel.com, cdrmjx.com, dzoule.com and szsryt.com.

studycpr.com at least partially shares name servers with other domains, for instance tymscar.com, gvyrxseoqvugu.online, untrade.org, aq2eaph5.com and unhcr.ru.

these name servers are commonly used with will.ns.cloudflare.com, kami.ns.cloudflare.com and carla.ns.cloudflare.com.

Host names with six IP numbers: dawn.ns.cloudflare.com points to: 2606:4700:50::adf5:3a6a, 2803:f800:50::6ca2:c06a, 2a06:98c1:50::ac40:206a, 108.162.192.106, 172.64.32.106 and 173.245.58.106. evan.ns.cloudflare.com points to: 2606:4700:58::adf5:3ba5, 2803:f800:50::6ca2:c1a5, 2a06:98c1:50::ac40:21a5, 108.162.193.165, 172.64.33.165 and 173.245.59.165.

Mail Servers

studycpr.com is handled by two mail servers: mx00.1and1.com and mx01.1and1.com.

studycpr.com uses the same mail server configuration as other domains, such as itconnectpr.com, s603421999.onlinehome.us, mailserv.neelat.com, wagnertechnical.com and rdcc.us.

studycpr.com shares mail servers with other domains at least in part, for instance u21537568.onlinehome-server.com, mogfind.com, u16579720.onlinehome-server.com, tlchs.org and u20222796.onlinehome-server.com.

Host names with one IP number: mx00.1and1.com points to 74.208.5.3; mx01.1and1.com points to 74.208.5.21.

studycpr.com - robtex.com

studycpr.com

com

Previously MX for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`studycpr.com`

`com`