`ratemyprofessors.co`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:2d86^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:d6a6^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.45.134^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.214.166^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`celine.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2662^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`celine.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c262^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`celine.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2262^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`celine.ns.cloudflare.com`
		A	108.162.194.98^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`celine.ns.cloudflare.com`
		A	162.159.38.98^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`celine.ns.cloudflare.com`
		A	172.64.34.98^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`celine.ns.cloudflare.com`
NS	`osmar.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c7c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`osmar.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c37c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`osmar.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:237c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`osmar.ns.cloudflare.com`
		A	108.162.195.124^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`osmar.ns.cloudflare.com`
		A	162.159.44.124^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`osmar.ns.cloudflare.com`
		A	172.64.35.124^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`osmar.ns.cloudflare.com`
MX	`eforward1.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward2.registrar-servers.com` ⭐
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward3.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward4.registrar-servers.com`⁽¹⁵⁾
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward5.registrar-servers.com`⁽²⁰⁾
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
TXT	`google-site-verification=1F50F_qwprvtcLpq88xvDP_ccD0G9CxvrJV85XcVNVY`
TXT	`google-site-verification=Psmq4cNyTr_Z1nOH5RMnPP54yVD8wnEzH96o2Jctm0c`
TXT	`v=spf1 include:spf.efwd.registrar-servers.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.45.134, 172.67.214.166
		IPv6	2606:4700:3030::6815:2d86, 2606:4700:3035::ac43:d6a6
SOA	`celine.ns.cloudflare.com`dns@cloudflare.com serial=2398009486

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759617653

Same first word

ratemyprofessors.ca

ratemyprofessors.de

ratemyprofessors.net

ratemyprofessors.co

ratemyprofessors.com

Similar names

ratemyprofesssor.com

professormastery.com

DNS History

20 records (11 active, 9 former)

●NSceline.ns.cloudflare.com2026-03-24 → 2026-03-25 · 3 obs

○ 2017-04-19 16:20:54
● 2026-03-24 15:58:36
● 2026-03-25 07:04:16

○NSns1.above.com2016-09-14 → 2017-04-19 · 5 obs

○ 2016-03-31 11:21:16
● 2016-09-14 00:38:56
● 2017-04-19 16:20:54
○ 2026-03-24 15:58:36
○ 2026-03-25 07:04:16

○NSns1.bodis.com2015-08-11 → 2015-12-01 · 4 obs

● 2015-08-11 13:53:36
● 2015-12-01 18:28:00
○ 2016-03-31 11:21:16
○ 2026-03-25 07:04:16

○NSns2.above.com2016-09-14 → 2017-04-19 · 5 obs

○ 2016-03-31 11:21:16
● 2016-09-14 00:38:56
● 2017-04-19 16:20:54
○ 2026-03-24 15:58:36
○ 2026-03-25 07:04:16

○NSns2.bodis.com2015-08-11 → 2015-12-01 · 4 obs

● 2015-08-11 13:53:36
● 2015-12-01 18:28:00
○ 2016-03-31 11:21:16
○ 2026-03-25 07:04:16

●NSosmar.ns.cloudflare.com2026-03-24 → 2026-03-25 · 3 obs

○ 2017-04-19 16:20:54
● 2026-03-24 15:58:36
● 2026-03-25 07:04:16

●MXeforward1.registrar-servers.com2026-03-24 → 2026-03-25 · 3 obs

○ 2017-04-19 16:20:54
● 2026-03-24 15:58:36
● 2026-03-25 07:04:16

●MXeforward2.registrar-servers.com2026-03-24 → 2026-03-25 · 3 obs

○ 2017-04-19 16:20:54
● 2026-03-24 15:58:36
● 2026-03-25 07:04:16

●MXeforward3.registrar-servers.com2026-03-24 → 2026-03-25 · 3 obs

○ 2017-04-19 16:20:54
● 2026-03-24 15:58:36
● 2026-03-25 07:04:16

●MXeforward4.registrar-servers.com2026-03-24 → 2026-03-25 · 3 obs

○ 2017-04-19 16:20:54
● 2026-03-24 15:58:36
● 2026-03-25 07:04:16

●MXeforward5.registrar-servers.com2026-03-24 → 2026-03-25 · 3 obs

○ 2017-04-19 16:20:54
● 2026-03-24 15:58:36
● 2026-03-25 07:04:16

○MXmail.post-host.net2016-09-14 → 2016-09-14 · 3 obs

● 2016-09-14 00:38:56
○ 2017-04-19 16:20:54
○ 2026-03-25 07:04:16

○MXmx92.m1bp.com2017-04-19 → 2017-04-19 · 4 obs

○ 2016-09-14 00:38:56
● 2017-04-19 16:20:54
○ 2026-03-24 15:58:36
○ 2026-03-25 07:04:16

○MXmx92.mb5p.com2017-04-19 → 2017-04-19 · 4 obs

○ 2016-09-14 00:38:56
● 2017-04-19 16:20:54
○ 2026-03-24 15:58:36
○ 2026-03-25 07:04:16

○A103.224.182.2432016-09-14 → 2017-04-19 · 5 obs

○ 2016-03-31 11:21:16
● 2016-09-14 00:38:56
● 2017-04-19 16:20:54
○ 2026-03-24 15:58:36
○ 2026-03-25 07:04:16

●A104.21.45.1342026-03-24 → 2026-03-25 · 3 obs

○ 2017-04-19 16:20:54
● 2026-03-24 15:58:36
● 2026-03-25 07:04:16

●A172.67.214.1662026-03-24 → 2026-03-25 · 3 obs

○ 2017-04-19 16:20:54
● 2026-03-24 15:58:36
● 2026-03-25 07:04:16

○A199.59.243.1202015-08-11 → 2015-12-01 · 4 obs

● 2015-08-11 13:53:36
● 2015-12-01 18:28:00
○ 2016-03-31 11:21:16
○ 2026-03-25 07:04:16

●A2606:4700:3030::6815:2d862026-03-24 → 2026-03-25 · 3 obs

○ 2017-04-19 16:20:54
● 2026-03-24 15:58:36
● 2026-03-25 07:04:16

●A2606:4700:3035::ac43:d6a62026-03-24 → 2026-03-25 · 3 obs

○ 2017-04-19 16:20:54
● 2026-03-24 15:58:36
● 2026-03-25 07:04:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	a.registrydns.co, c.registrydns.co, b.registrydns.co, d.registrydns.co	-
ratemyprofessors.co	osmar.ns.cloudflare.com, celine.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.124

NS records: osmar.ns.cloudflare.com, celine.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ratemyprofessors.co (unsigned zone)

⏱️ Timing

Total: 498ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.45.134, 172.67.214.166`
AAAA	2	`2606:4700:3030::6815:2d86, 2606:4700:3035::ac43:d6a6`
NS	2	`celine.ns.cloudflare.com, osmar.ns.cloudflare.com`
MX	5	`eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10...`
TXT	3	`google-site-verification=1F50F_qwprvtcLp, google-site-verification=Psmq4cNyTr_Z1nO...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`celine.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

ratemyprofessors.co resolves to four IP numbers: 2606:4700:3030::6815:2d86, 2606:4700:3035::ac43:d6a6, 104.21.45.134 and 172.67.214.166.

other host names for instance siyasetcafe.com, app.trybark.com, www.bazart-asso.com, anterosmarketing.com and kingstoneholdings.com share IP numbers with ratemyprofessors.co.

Name Servers

ratemyprofessors.co is delegated to two name servers: celine.ns.cloudflare.com and osmar.ns.cloudflare.com.

ratemyprofessors.co shares the same name server setup as other domains, such as vovanslots-lucky.top, yp.org.my, daisystream.com and vovan-casino-winx01.fun.

ratemyprofessors.co at least partially shares name servers with other domains, for instance 1whsmo.life, kronotoptext.se, 1wefwa.life, shoponline.solar and 1wzeyh.life.