ohstudy.net - dns.ninja

`ohstudy.net`

DNSSEC	⚠️ Not signed
A	2606:4700:10::6814:2cba^{🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:10::ac42:a382^{🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.20.44.186^{Cloudflare104.20.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.66.163.130^{🇺🇸 Cloudflare172.66.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`brynne.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2641^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brynne.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c241^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`brynne.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2241^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`brynne.ns.cloudflare.com`
		A	108.162.194.65^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	162.159.38.65^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.34.65^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`vern.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bf3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1f3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vern.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21f3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vern.ns.cloudflare.com`
		A	108.162.193.243^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	172.64.33.243^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	173.245.59.243^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1d::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f27.1e100.net`
		A	173.194.45.26^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f26.1e100.net`
MX	`mail.ohstudy.net` ⭐
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`google-site-verification=y2NcY12fqkpqkrb906wNAGEjHzdzJl5GR4Kr_V42vJg`
TXT	`v=spf1 ip4:60.199.131.64 include:_spf.google.com ~all`
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	104.20.44.186, 172.66.163.130
		IPv6 hints	2606:4700:10::6814:2cba, 2606:4700:10::ac42:a382
SOA	`brynne.ns.cloudflare.com`dns@cloudflare.com serial=2409935868

`net`

	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=1785343832

rank #622464 globally
rank #18400 in the tld
WOT: SAFE (64/100)
📈 Tranco rank: #937,454

Same first word

ohstudy.com

ohstudy.net

Similar names

studyho.com

sdyouth.net

dsyouth.or.kr

youthds.com

sdyouth.org

duyhost.com

DNS History

20 records (12 active, 8 former)

●NSbrynne.ns.cloudflare.com2026-05-20 → 2026-07-29 · 3 obs

○ 2026-03-14 17:23:42
● 2026-05-20 22:28:50
● 2026-07-29 17:19:00

○NSlocalhost@2015-06-14 → 2026-03-14 · 7 obs

● 2015-06-14 15:47:38
○ 2015-10-27 05:43:24
○ 2017-01-08 03:49:54
● 2026-03-14 12:23:50
● 2026-03-14 17:23:42
○ 2026-05-20 22:28:50
○ 2026-07-29 17:19:00

○NSlocalhost\@2015-10-27 → 2017-01-08 · 5 obs

○ 2015-06-14 15:47:38
● 2015-10-27 05:43:24
● 2017-01-08 03:49:54
○ 2026-03-14 12:23:50
○ 2026-07-29 17:19:00

○NSns1.cyberdns.tw2026-03-14 → 2026-03-14 · 5 obs

○ 2017-01-08 03:49:54
● 2026-03-14 12:23:50
● 2026-03-14 17:23:42
○ 2026-05-20 22:28:50
○ 2026-07-29 17:19:00

○NSns2.cyberdns.tw2026-03-14 → 2026-03-14 · 5 obs

○ 2017-01-08 03:49:54
● 2026-03-14 12:23:50
● 2026-03-14 17:23:42
○ 2026-05-20 22:28:50
○ 2026-07-29 17:19:00

○NSpdns1.pchome.com.tw2015-06-14 → 2017-01-08 · 4 obs

● 2015-06-14 15:47:38
● 2017-01-08 03:49:54
○ 2026-03-14 12:23:50
○ 2026-07-29 17:19:00

○NSpdns2.pchome.com.tw2015-06-14 → 2017-01-08 · 4 obs

● 2015-06-14 15:47:38
● 2017-01-08 03:49:54
○ 2026-03-14 12:23:50
○ 2026-07-29 17:19:00

●NSvern.ns.cloudflare.com2026-05-20 → 2026-07-29 · 3 obs

○ 2026-03-14 17:23:42
● 2026-05-20 22:28:50
● 2026-07-29 17:19:00

●MXalt1.aspmx.l.google.com2016-03-29 → 2026-07-29 · 3 obs

○ 2015-06-14 15:47:38
● 2016-03-29 11:25:06
● 2026-07-29 17:19:00

●MXalt2.aspmx.l.google.com2016-03-29 → 2026-07-29 · 3 obs

○ 2015-06-14 15:47:38
● 2016-03-29 11:25:06
● 2026-07-29 17:19:00

●MXalt3.aspmx.l.google.com2026-03-14 → 2026-07-29 · 3 obs

○ 2016-03-29 11:25:06
● 2026-03-14 12:23:50
● 2026-07-29 17:19:00

●MXalt4.aspmx.l.google.com2026-03-14 → 2026-07-29 · 3 obs

○ 2016-03-29 11:25:06
● 2026-03-14 12:23:50
● 2026-07-29 17:19:00

●MXaspmx.l.google.com2016-03-29 → 2026-07-29 · 3 obs

○ 2015-06-14 15:47:38
● 2016-03-29 11:25:06
● 2026-07-29 17:19:00

●MXmail.ohstudy.net2015-06-14 → 2026-07-29 · 2 obs

● 2015-06-14 15:47:38
● 2026-07-29 17:19:00

●A104.20.44.1862026-05-20 → 2026-07-29 · 3 obs

○ 2026-03-14 17:23:42
● 2026-05-20 22:28:50
● 2026-07-29 17:19:00

●A172.66.163.1302026-05-20 → 2026-07-29 · 3 obs

○ 2026-03-14 17:23:42
● 2026-05-20 22:28:50
● 2026-07-29 17:19:00

●A2606:4700:10::6814:2cba2026-05-20 → 2026-07-29 · 3 obs

○ 2026-03-14 17:23:42
● 2026-05-20 22:28:50
● 2026-07-29 17:19:00

●A2606:4700:10::ac42:a3822026-05-20 → 2026-07-29 · 3 obs

○ 2026-03-14 17:23:42
● 2026-05-20 22:28:50
● 2026-07-29 17:19:00

○A60.199.131.642026-03-14 → 2026-03-14 · 5 obs

○ 2017-01-08 03:49:54
● 2026-03-14 12:23:50
● 2026-03-14 17:23:42
○ 2026-05-20 22:28:50
○ 2026-07-29 17:19:00

○A61.218.70.102015-06-14 → 2017-01-08 · 4 obs

● 2015-06-14 15:47:38
● 2017-01-08 03:49:54
○ 2026-03-14 12:23:50
○ 2026-07-29 17:19:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
ohstudy.net	vern.ns.cloudflare.com, brynne.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.243

NS records: vern.ns.cloudflare.com, brynne.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ohstudy.net (unsigned zone)

⏱️ Timing

Total: 645ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.66.163.130, 104.20.44.186`
AAAA	2	`2606:4700:10::6814:2cba, 2606:4700:10::ac42:a382`
NS	2	`brynne.ns.cloudflare.com, vern.ns.cloudflare.com`
MX	6	`aspmx.l.google.com (pri: 1), mail.ohstudy.net (pri: 1)...`
TXT	2	`google-site-verification=y2NcY12fqkpqkrb, v=spf1 ip4:60.199.131.64 include:_spf.go`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`
SOA	1	`brynne.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

ohstudy.net points to the four IP addresses 104.20.44.186, 172.66.163.130, 2606:4700:10::6814:2cba and 2606:4700:10::ac42:a382.

dbdcusa.com is an example of another host name that shares IP numbers with ohstudy.net.

Name Servers

ohstudy.net has two authoritative name servers — brynne.ns.cloudflare.com and vern.ns.cloudflare.com.

ohstudy.net shares its name server setup with other domains, including hollyskitchen.org, prime-iq.com, xiaoyakan.com and two others.

The name servers of ohstudy.net overlap at least partially with those of other domains — among them gindex.workers.dev, hafid.is, twentysixbudapest.com and two more.

These name servers commonly co-occur with the name servers dane.ns.cloudflare.com, lex.ns.cloudflare.com, pablo.ns.cloudflare.com and terry.ns.cloudflare.com.

Host names with 6 IP numbers:

brynne.ns.cloudflare.com points to 108.162.194.65, 162.159.38.65, 172.64.34.65 and 3 other IP addresses.

vern.ns.cloudflare.com points to 108.162.193.243, 172.64.33.243, 173.245.59.243 and 3 other IP addresses.

Mail Servers

ohstudy.net has 6 mail servers — mail.ohstudy.net, aspmx.l.google.com, alt1.aspmx.l.google.com plus 3 other.

ohstudy.net shares mail servers — at least in part — with other domains, including madeforu.in, do-tell.nl, myrental.in and two others.

These mail servers are frequently used alongside mail servers alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com and 4 other.

Host names with two IP numbers:

aspmx.l.google.com resolves to 173.194.45.26 and 2607:f8b0:4004:c1d::1b.

alt1.aspmx.l.google.com resolves to 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com resolves to 172.253.116.26 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com resolves to 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com resolves to 172.253.157.26 and 2a00:1450:400c:c23::1a.