studyhacker.net - dns.ninja

`studyhacker.net`

DNSSEC	⚠️ Not signed
A	13.192.6.144^{🇺🇸 Amazon13.192.0.0/16 EC2 NRT prefix}
		PTR	`ec2-13-192-6-144.ap-northeast-1.compute.amazonaws.com`
A	16.76.81.189^{🇺🇸 Amazon16.76.0.0/17 EC2 Prefix}
A	57.182.5.225^{🇯🇵 Amazon57.180.0.0/14 EC2}
NS	`ns-620.awsdns-13.net` ⭐
		A	2600:9000:5302:6c00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-620.awsdns-13.net`
		A	205.251.194.108^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-620.awsdns-13.net`
NS	`ns-1351.awsdns-40.org`
		A	2600:9000:5305:4700::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1351.awsdns-40.org`
		A	205.251.197.71^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1351.awsdns-40.org`
NS	`ns-1984.awsdns-56.co.uk`
		A	2600:9000:5307:c000::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1984.awsdns-56.co.uk`
		A	205.251.199.192^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1984.awsdns-56.co.uk`
NS	`ns-90.awsdns-11.com`
		A	2600:9000:5300:5a00::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-90.awsdns-11.com`
		A	205.251.192.90^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-90.awsdns-11.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c17::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f27.1e100.net`
		A	172.253.122.27^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 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`⁽²⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`aspmx2.googlemail.com`⁽³⁰⁾
		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	`aspmx3.googlemail.com`⁽³⁰⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`aspmx4.googlemail.com`⁽³⁰⁾
		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	`aspmx5.googlemail.com`⁽³⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mR...`
TXT	`v=spf1 include:spf.mandrillapp.com ?all`
SOA	`ns-620.awsdns-13.net`awsdns-hostmaster@amazon.com serial=1

`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=1782748166

rank #264259 globally
rank #7234 in the tld
🔒 HSTS Preload (+subdomains)
📈 Tranco rank: #176,169

Same first word

studyhacker.net

studyhacker.jp

DNS History

22 records (14 active, 8 former)

○NSmaster.dns.ne.jp2015-07-02 → 2017-02-17 · 3 obs

● 2015-07-02 15:06:02
● 2017-02-17 00:12:44
○ 2026-06-29 16:11:22

●NSns-1351.awsdns-40.org2026-06-29 → 2026-06-29 · 2 obs

○ 2017-02-17 00:12:44
● 2026-06-29 16:11:22

●NSns-1984.awsdns-56.co.uk2026-06-29 → 2026-06-29 · 2 obs

○ 2017-02-17 00:12:44
● 2026-06-29 16:11:22

●NSns-620.awsdns-13.net2026-06-29 → 2026-06-29 · 2 obs

○ 2017-02-17 00:12:44
● 2026-06-29 16:11:22

●NSns-90.awsdns-11.com2026-06-29 → 2026-06-29 · 2 obs

○ 2017-02-17 00:12:44
● 2026-06-29 16:11:22

○NSns1.dns.ne.jp2015-07-02 → 2017-02-17 · 3 obs

● 2015-07-02 15:06:02
● 2017-02-17 00:12:44
○ 2026-06-29 16:11:22

○NSns2.dns.ne.jp2015-07-02 → 2017-02-17 · 3 obs

● 2015-07-02 15:06:02
● 2017-02-17 00:12:44
○ 2026-06-29 16:11:22

●MXalt1.aspmx.l.google.com2026-06-29 → 2026-06-29 · 2 obs

○ 2017-02-17 00:12:44
● 2026-06-29 16:11:22

●MXalt2.aspmx.l.google.com2026-06-29 → 2026-06-29 · 2 obs

○ 2017-02-17 00:12:44
● 2026-06-29 16:11:22

●MXaspmx.l.google.com2026-06-29 → 2026-06-29 · 2 obs

○ 2017-02-17 00:12:44
● 2026-06-29 16:11:22

●MXaspmx2.googlemail.com2026-06-29 → 2026-06-29 · 2 obs

○ 2017-02-17 00:12:44
● 2026-06-29 16:11:22

●MXaspmx3.googlemail.com2026-06-29 → 2026-06-29 · 2 obs

○ 2017-02-17 00:12:44
● 2026-06-29 16:11:22

●MXaspmx4.googlemail.com2026-06-29 → 2026-06-29 · 2 obs

○ 2017-02-17 00:12:44
● 2026-06-29 16:11:22

●MXaspmx5.googlemail.com2026-06-29 → 2026-06-29 · 2 obs

○ 2017-02-17 00:12:44
● 2026-06-29 16:11:22

○MXstudyhacker.net2015-07-02 → 2017-02-17 · 3 obs

● 2015-07-02 15:06:02
● 2017-02-17 00:12:44
○ 2026-06-29 16:11:22

●A13.192.6.1442026-06-29 → 2026-06-29 · 2 obs

○ 2017-02-17 00:12:44
● 2026-06-29 16:11:22

○A153.120.34.902015-07-02 → 2017-02-17 · 3 obs

● 2015-07-02 15:06:02
● 2017-02-17 00:12:44
○ 2026-06-29 16:11:22

●A16.76.81.1892026-06-29 → 2026-06-29 · 2 obs

○ 2017-02-17 00:12:44
● 2026-06-29 16:11:22

○A3.113.37.232026-06-29 → 2026-06-29 · 1 obs

○ 2026-06-29 16:11:22

○A35.77.145.1432026-06-29 → 2026-06-29 · 1 obs

○ 2026-06-29 16:11:22

○A54.65.81.572026-06-29 → 2026-06-29 · 1 obs

○ 2026-06-29 16:11:22

●A57.182.5.2252026-06-29 → 2026-06-29 · 2 obs

○ 2017-02-17 00:12:44
● 2026-06-29 16:11:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	m.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net...	-
studyhacker.net	ns-90.awsdns-11.com, ns-620.awsdns-13.net, ns-1351.awsdns-40.org, ns-1984.awsdns-56.co.uk	2 records

✅ Authoritative Response

Server:205.251.194.108

NS records: ns-90.awsdns-11.com, ns-620.awsdns-13.net, ns-1351.awsdns-40.org, ns-1984.awsdns-56.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studyhacker.net (unsigned zone)

⏱️ Timing

Total: 1400ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`13.192.6.144, 57.182.5.225...`
NS	4	`ns-1351.awsdns-40.org, ns-1984.awsdns-56.co.uk...`
MX	7	`aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 20)...`
TXT	2	`v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQ, v=spf1 include:spf.mandrillapp.com ?all`
SOA	1	`ns-620.awsdns-13.net awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-620.awsdns-13.net, ns-620.awsdns-13.net)

Analysis

IP Addresses

studyhacker.net has three IP addresses: 13.192.6.144, 16.76.81.189 and 57.182.5.225.

ec2-57-182-5-225.ap-northeast-1.compute.amazonaws.com, for instance, is one of the other host names sharing IP numbers with studyhacker.net.

Name Servers

studyhacker.net has four authoritative name servers: ns-90.awsdns-11.com, ns-620.awsdns-13.net, ns-1351.awsdns-40.org and ns-1984.awsdns-56.co.uk.

The name servers of studyhacker.net overlap at least partially with those of other domains — among them nasvf.org, dyninno.com, truepush.in and two more.

Each of the four hosts ns-90.awsdns-11.com, ns-620.awsdns-13.net, ns-1351.awsdns-40.org and ns-1984.awsdns-56.co.uk has two IP addresses. ns-90.awsdns-11.com points to 205.251.192.90 and 2600:9000:5300:5a00::1. ns-620.awsdns-13.net points to 205.251.194.108 and 2600:9000:5302:6c00::1. ns-1351.awsdns-40.org points to 205.251.197.71 and 2600:9000:5305:4700::1. ns-1984.awsdns-56.co.uk points to 205.251.199.192 and 2600:9000:5307:c000::1.

Mail Servers

studyhacker.net has 7 mail servers — aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com plus 4 other.

studyhacker.net shares mail servers — at least in part — with other domains, including ns500765.ns500734.ns500699.ns500734.ns500699.ns500699.ns500693.ns500699.ns500699.ns500699.ns500699.ns500699.ns500699.ns500632.ns500632.ns500110.dtrkdll.com, ns500734.ns500693.ns500734.ns500699.ns500734.ns500693.ns500693.ns500699.ns500699.ns500588.ns500683.ns500588.ns500588.ns500588.ns500612.ns500632.ns500110.dtrkdll.com, ns500693.ns500699.ns500734.ns500699.ns500734.ns500699.ns500693.ns500693.ns500588.ns500588.ns500588.ns500588.ns500588.ns500110.dtrkdll.com and two others.

These mail servers are frequently used alongside mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, aspmx.l.google.com and 3 other.

Host names with two IP numbers:

aspmx2.googlemail.com directs traffic to 108.177.123.27 and 2800:3f0:4003:c0f::1a.

aspmx3.googlemail.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1b.

aspmx4.googlemail.com directs traffic to 192.178.223.26 and 2a00:1450:4009:c0f::1a.

aspmx5.googlemail.com directs traffic to 172.253.157.27 and 2a00:1450:400c:c23::1b.

aspmx.l.google.com directs traffic to 172.253.122.27 and 2607:f8b0:4004:c17::1b.

alt1.aspmx.l.google.com directs traffic to 108.177.123.27 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1a.

Both aspmx2.googlemail.com and alt1.aspmx.l.google.com resolve to 108.177.123.27 IP addresses each.

Both aspmx3.googlemail.com and alt2.aspmx.l.google.com resolve to 172.253.116.27 IP addresses each.