study-math.org - robtex.com

study-math.org

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:39ad🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:93de🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.57.173Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.147.222🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbarbara.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3af8🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbarbara.ns.cloudflare.com
A2803:f800:50::6ca2:c0f8🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRbarbara.ns.cloudflare.com
A2a06:98c1:50::ac40:20f8🇺🇸 Cloudflare2a06:98c1:50::/45
PTRbarbara.ns.cloudflare.com
A108.162.192.248🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbarbara.ns.cloudflare.com
A172.64.32.248🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbarbara.ns.cloudflare.com
A173.245.58.248🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbarbara.ns.cloudflare.com
NSdrew.ns.cloudflare.com
A2606:4700:58::adf5:3ba0🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdrew.ns.cloudflare.com
A2803:f800:50::6ca2:c1a0🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdrew.ns.cloudflare.com
A2a06:98c1:50::ac40:21a0🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdrew.ns.cloudflare.com
A108.162.193.160🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdrew.ns.cloudflare.com
A172.64.33.160🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdrew.ns.cloudflare.com
A173.245.59.160🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdrew.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.57.173, 172.67.147.222
IPv62606:4700:3034::6815:39ad, 2606:4700:3035::ac43:93de
SOAbarbara.ns.cloudflare.comdns@cloudflare.com serial=2395697260

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=1774498760

Same first word

study-math.org

DNS History

11 records (6 active, 5 former)

20162017201820192020202120222023202420252026NSbarbara.ns.cloudflare.comdrew.ns.cloudflare.comns1.wisteria.arvixe.comns2.wisteria.arvixe.comMXmail.study-math.orgmail2.study-math.orgA104.21.57.173172.67.147.2222606:4700:3034::6815:39ad2606:4700:3035::ac43:93de185.21.134.20
●NSbarbara.ns.cloudflare.com2026-03-26 → 2026-03-26 · 3 obs
○ 2018-06-20 21:57:22
● 2026-03-26 03:01:00
● 2026-03-26 04:41:04
●NSdrew.ns.cloudflare.com2026-03-26 → 2026-03-26 · 3 obs
○ 2018-06-20 21:57:22
● 2026-03-26 03:01:00
● 2026-03-26 04:41:04
○NSns1.wisteria.arvixe.com2015-07-09 → 2016-01-27 · 4 obs
● 2015-07-09 05:56:32
● 2016-01-27 22:41:58
○ 2018-06-20 21:57:22
○ 2026-03-26 04:41:04
○NSns2.wisteria.arvixe.com2015-07-09 → 2016-01-27 · 4 obs
● 2015-07-09 05:56:32
● 2016-01-27 22:41:58
○ 2018-06-20 21:57:22
○ 2026-03-26 04:41:04
○MXmail.study-math.org2015-07-09 → 2016-01-27 · 4 obs
● 2015-07-09 05:56:32
● 2016-01-27 22:41:58
○ 2018-06-20 21:57:22
○ 2026-03-26 04:41:04
○MXmail2.study-math.org2015-07-09 → 2016-01-27 · 4 obs
● 2015-07-09 05:56:32
● 2016-01-27 22:41:58
○ 2018-06-20 21:57:22
○ 2026-03-26 04:41:04
●A104.21.57.1732026-03-26 → 2026-03-26 · 3 obs
○ 2018-06-20 21:57:22
● 2026-03-26 03:01:00
● 2026-03-26 04:41:04
●A172.67.147.2222026-03-26 → 2026-03-26 · 3 obs
○ 2018-06-20 21:57:22
● 2026-03-26 03:01:00
● 2026-03-26 04:41:04
○A185.21.134.202015-07-09 → 2016-01-27 · 4 obs
● 2015-07-09 05:56:32
● 2016-01-27 22:41:58
○ 2018-06-20 21:57:22
○ 2026-03-26 04:41:04
●A2606:4700:3034::6815:39ad2026-03-26 → 2026-03-26 · 3 obs
○ 2018-06-20 21:57:22
● 2026-03-26 03:01:00
● 2026-03-26 04:41:04
●A2606:4700:3035::ac43:93de2026-03-26 → 2026-03-26 · 3 obs
○ 2018-06-20 21:57:22
● 2026-03-26 03:01:00
● 2026-03-26 04:41:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org-
study-math.orgdrew.ns.cloudflare.com, barbara.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.193.160

NS records: drew.ns.cloudflare.com, barbara.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for study-math.org (unsigned zone)

⏱️ Timing

Total: 261ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.57.173, 172.67.147.222
AAAA22606:4700:3034::6815:39ad, 2606:4700:3035::ac43:93de
NS2barbara.ns.cloudflare.com, drew.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1barbara.ns.cloudflare.com dns.cloudflare

Analysis

IP Addresses

study-math.org maps to four IP numbers: 2606:4700:3034::6815:39ad, 2606:4700:3035::ac43:93de, 104.21.57.173 and 172.67.147.222.

Other host names, for instance www.ayhgt.net, petcomfort.co.uk, lokuads.com, profy.ge and flashtaville.com share IP numbers with study-math.org.

Name Servers

Two name servers barbara.ns.cloudflare.com and drew.ns.cloudflare.com handle delegation for study-math.org.

study-math.org uses the same name server setup as other domains, for example flyerlog.info, caramba-switcher.com, crp.to, ackpos.com and womelf.com.

study-math.org partially shares name servers with other domains; examples include redflag.no, qiime.org, pole-tek.com, poan.se and magnuts.com.

These name servers are often used with the name servers rodney.ns.cloudflare.com and trevor.ns.cloudflare.com.

Host names with six IP numbers: barbara.ns.cloudflare.com points to: 2606:4700:50::adf5:3af8, 2803:f800:50::6ca2:c0f8, 2a06:98c1:50::ac40:20f8, 108.162.192.248, 172.64.32.248 and 173.245.58.248; drew.ns.cloudflare.com points to: 2606:4700:58::adf5:3ba0, 2803:f800:50::6ca2:c1a0, 2a06:98c1:50::ac40:21a0, 108.162.193.160, 172.64.33.160 and 173.245.59.160.