apstudynotes.org - dns.ninja

apstudynotes.org

DNSSEC🔒 Signed (DS record present)
A2606:4700:3033::6815:3dee🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:d8fb🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.61.238Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.216.251🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdana.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a69🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdana.ns.cloudflare.com
A2803:f800:50::6ca2:c069🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdana.ns.cloudflare.com
A2a06:98c1:50::ac40:2069🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdana.ns.cloudflare.com
A108.162.192.105🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdana.ns.cloudflare.com
A172.64.32.105🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdana.ns.cloudflare.com
A173.245.58.105🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdana.ns.cloudflare.com
NSmax.ns.cloudflare.com
A2606:4700:58::adf5:3b84🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmax.ns.cloudflare.com
A2803:f800:50::6ca2:c184🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmax.ns.cloudflare.com
A2a06:98c1:50::ac40:2184🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmax.ns.cloudflare.com
A108.162.193.132🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmax.ns.cloudflare.com
A172.64.33.132🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmax.ns.cloudflare.com
A173.245.59.132🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmax.ns.cloudflare.com
TXTgoogle-site-verification=RKu4cpREGAsbpCy_IGBnMDaf5-RovXdcBbDtFSl-Ago
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.61.238, 172.67.216.251
IPv6 hints2606:4700:3033::6815:3dee, 2606:4700:3034::ac43:d8fb
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=3, name=cloudflare-ech.com
SOAdana.ns.cloudflare.comdns@cloudflare.com serial=2407474370

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1782914161
rank #664386 globally
rank #50516 in the tld
WOT: SAFE (70/100)

Subdomains

www.apstudynotes.org

Same first word

apstudynotes.org

DNS History

26 records (6 active, 20 former)

201020122014201620182020202220242026NSdana.ns.cloudflare.commax.ns.cloudflare.comns1.dreamhost.comns1.linode.comns2.dreamhost.comns2.linode.comns3.dreamhost.comns3.linode.comns4.linode.comns5.linode.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comaspmx4.googlemail.comaspmx5.googlemail.commx1.balanced.spunky.mail.dreamhost.commx2.balanced.spunky.mail.dreamhost.comA104.21.61.238172.67.216.2512606:4700:3033::6815:3dee2606:4700:3034::ac43:d8fb192.155.85.126208.113.156.1712606:4700:3034::6815:3dee
●NSdana.ns.cloudflare.com2026-02-15 → 2026-07-01 · 3 obs
○ 2017-02-14 11:03:30
● 2026-02-15 18:48:06
● 2026-07-01 14:33:26
●NSmax.ns.cloudflare.com2026-02-15 → 2026-07-01 · 3 obs
○ 2017-02-14 11:03:30
● 2026-02-15 18:48:06
● 2026-07-01 14:33:26
○NSns1.dreamhost.com2009-01-13 → 2009-01-13 · 3 obs
● 2009-01-13 03:24:04
○ 2015-08-10 03:02:30
○ 2026-07-01 14:33:26
○NSns1.linode.com2015-08-10 → 2017-02-14 · 5 obs
○ 2009-01-13 03:24:04
● 2015-08-10 03:02:30
● 2017-02-14 11:03:30
○ 2026-02-15 18:48:06
○ 2026-07-01 14:33:26
○NSns2.dreamhost.com2009-01-13 → 2009-01-13 · 3 obs
● 2009-01-13 03:24:04
○ 2015-08-10 03:02:30
○ 2026-07-01 14:33:26
○NSns2.linode.com2015-08-10 → 2017-02-14 · 5 obs
○ 2009-01-13 03:24:04
● 2015-08-10 03:02:30
● 2017-02-14 11:03:30
○ 2026-02-15 18:48:06
○ 2026-07-01 14:33:26
○NSns3.dreamhost.com2009-01-13 → 2009-01-13 · 3 obs
● 2009-01-13 03:24:04
○ 2015-08-10 03:02:30
○ 2026-07-01 14:33:26
○NSns3.linode.com2015-08-10 → 2017-02-14 · 5 obs
○ 2009-01-13 03:24:04
● 2015-08-10 03:02:30
● 2017-02-14 11:03:30
○ 2026-02-15 18:48:06
○ 2026-07-01 14:33:26
○NSns4.linode.com2015-08-10 → 2017-02-14 · 5 obs
○ 2009-01-13 03:24:04
● 2015-08-10 03:02:30
● 2017-02-14 11:03:30
○ 2026-02-15 18:48:06
○ 2026-07-01 14:33:26
○NSns5.linode.com2015-08-10 → 2017-02-14 · 5 obs
○ 2009-01-13 03:24:04
● 2015-08-10 03:02:30
● 2017-02-14 11:03:30
○ 2026-02-15 18:48:06
○ 2026-07-01 14:33:26
○MXalt1.aspmx.l.google.com2015-08-10 → 2026-02-15 · 5 obs
○ 2009-01-13 03:24:04
● 2015-08-10 03:02:30
● 2026-02-15 18:48:06
○ 2026-02-28 19:23:52
○ 2026-07-01 14:33:26
○MXalt2.aspmx.l.google.com2015-08-10 → 2026-02-15 · 5 obs
○ 2009-01-13 03:24:04
● 2015-08-10 03:02:30
● 2026-02-15 18:48:06
○ 2026-02-28 19:23:52
○ 2026-07-01 14:33:26
○MXaspmx.l.google.com2015-08-10 → 2026-02-15 · 5 obs
○ 2009-01-13 03:24:04
● 2015-08-10 03:02:30
● 2026-02-15 18:48:06
○ 2026-02-28 19:23:52
○ 2026-07-01 14:33:26
○MXaspmx2.googlemail.com2015-08-10 → 2026-02-15 · 5 obs
○ 2009-01-13 03:24:04
● 2015-08-10 03:02:30
● 2026-02-15 18:48:06
○ 2026-02-28 19:23:52
○ 2026-07-01 14:33:26
○MXaspmx3.googlemail.com2015-08-10 → 2026-02-15 · 5 obs
○ 2009-01-13 03:24:04
● 2015-08-10 03:02:30
● 2026-02-15 18:48:06
○ 2026-02-28 19:23:52
○ 2026-07-01 14:33:26
○MXaspmx4.googlemail.com2015-08-10 → 2026-02-15 · 5 obs
○ 2009-01-13 03:24:04
● 2015-08-10 03:02:30
● 2026-02-15 18:48:06
○ 2026-02-28 19:23:52
○ 2026-07-01 14:33:26
○MXaspmx5.googlemail.com2015-08-10 → 2026-02-15 · 5 obs
○ 2009-01-13 03:24:04
● 2015-08-10 03:02:30
● 2026-02-15 18:48:06
○ 2026-02-28 19:23:52
○ 2026-07-01 14:33:26
○MXmx1.balanced.spunky.mail.dreamhost.com2009-01-13 → 2009-01-13 · 3 obs
● 2009-01-13 03:24:04
○ 2015-08-10 03:02:30
○ 2026-07-01 14:33:26
○MXmx2.balanced.spunky.mail.dreamhost.com2009-01-13 → 2009-01-13 · 3 obs
● 2009-01-13 03:24:04
○ 2015-08-10 03:02:30
○ 2026-07-01 14:33:26
●A104.21.61.2382026-02-15 → 2026-07-01 · 3 obs
○ 2017-02-14 11:03:30
● 2026-02-15 18:48:06
● 2026-07-01 14:33:26
●A172.67.216.2512026-02-15 → 2026-07-01 · 3 obs
○ 2017-02-14 11:03:30
● 2026-02-15 18:48:06
● 2026-07-01 14:33:26
○A192.155.85.1262015-08-10 → 2017-02-14 · 5 obs
○ 2009-01-13 03:24:04
● 2015-08-10 03:02:30
● 2017-02-14 11:03:30
○ 2026-02-15 18:48:06
○ 2026-07-01 14:33:26
○A208.113.156.1712009-01-13 → 2009-01-13 · 3 obs
● 2009-01-13 03:24:04
○ 2015-08-10 03:02:30
○ 2026-07-01 14:33:26
●A2606:4700:3033::6815:3dee2026-06-23 → 2026-07-01 · 3 obs
○ 2026-02-15 18:48:06
● 2026-06-23 00:53:58
● 2026-07-01 14:33:26
○A2606:4700:3034::6815:3dee2026-02-15 → 2026-02-15 · 4 obs
○ 2017-02-14 11:03:30
● 2026-02-15 18:48:06
○ 2026-06-23 00:53:58
○ 2026-07-01 14:33:26
●A2606:4700:3034::ac43:d8fb2026-02-15 → 2026-07-01 · 3 obs
○ 2017-02-14 11:03:30
● 2026-02-15 18:48:06
● 2026-07-01 14:33:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
apstudynotes.orgdana.ns.cloudflare.com, max.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.105

NS records: dana.ns.cloudflare.com, max.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1671ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.216.251, 104.21.61.238
AAAA22606:4700:3033::6815:3dee, 2606:4700:3034::ac43:d8fb
NS2dana.ns.cloudflare.com, max.ns.cloudflare.com
TXT1google-site-verification=RKu4cpREGAsbpCy
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1dana.ns.cloudflare.com dns.cloudflare.co

Analysis

Hierarchy

www.apstudynotes.org is a subdomain of apstudynotes.org.

IP Addresses

apstudynotes.org directs to four IP numbers, which are 104.21.61.238, 172.67.216.251, 2606:4700:3033::6815:3dee and 2606:4700:3034::ac43:d8fb.

icoincity.com, dcbuildingmaterial.com, hoonvision.com and two other host names share IP numbers with apstudynotes.org.

Name Servers

apstudynotes.org is delegated to two name servers: dana.ns.cloudflare.com and max.ns.cloudflare.com.

apstudynotes.org uses the same name servers as several other domains — among them activeprint.net, 5000minds.com, policycheck.com and two more.

The name servers of apstudynotes.org overlap at least partially with those of other domains — among them malverncollege.edu.eg, distressed-opportunities.com, oald.net and two more.

These name servers commonly co-occur with the name servers dave.ns.cloudflare.com, elisa.ns.cloudflare.com, woz.ns.cloudflare.com and igor.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

dana.ns.cloudflare.com resolves to 108.162.192.105, 172.64.32.105, 173.245.58.105 and 3 other IP addresses.

max.ns.cloudflare.com resolves to 108.162.193.132, 172.64.33.132, 173.245.59.132 and 3 other IP addresses.