beststudy.tw - robtex.com

beststudy.tw

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:5760🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:a954🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.87.96Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.169.84🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScurt.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b5e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcurt.ns.cloudflare.com
A2803:f800:50::6ca2:c15e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcurt.ns.cloudflare.com
A2a06:98c1:50::ac40:215e🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcurt.ns.cloudflare.com
A108.162.193.94🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcurt.ns.cloudflare.com
A172.64.33.94🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcurt.ns.cloudflare.com
A173.245.59.94🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcurt.ns.cloudflare.com
NSirena.ns.cloudflare.com
A2606:4700:50::a29f:264f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRirena.ns.cloudflare.com
A2803:f800:50::6ca2:c24f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRirena.ns.cloudflare.com
A2a06:98c1:50::ac40:224f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRirena.ns.cloudflare.com
A108.162.194.79🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRirena.ns.cloudflare.com
A162.159.38.79Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRirena.ns.cloudflare.com
A172.64.34.79🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRirena.ns.cloudflare.com
MXmail.beststudy.tw ⭐
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.87.96, 172.67.169.84
IPv62606:4700:3032::6815:5760, 2606:4700:3032::ac43:a954
SOAcurt.ns.cloudflare.comdns@cloudflare.com serial=2397294634

tw

DNSSEC🔒 Signed (DS record present)
NSa.dns.tw ⭐
NSanytld.apnic.net ⚠️ Not in parent delegation
NSb.dns.tw
NSc.dns.tw
NSd.dns.tw
NSe.dns.tw
NSf.dns.tw
NSg.dns.tw
NSh.dns.tw
SOAa.dns.twsnw@twnic.net.tw serial=2010996091

Same first word

beststudy.tw
beststudy.com

Similar names

studybest.com

DNS History

14 records (7 active, 7 former)

20162017201820192020202120222023202420252026NScurt.ns.cloudflare.comirena.ns.cloudflare.comlocalhost\@ns.beststudy.twns1.cyberdns.twns2.cyberdns.twMXmail.beststudy.twmx.dspams.comA104.21.87.96172.67.169.842606:4700:3032::6815:57602606:4700:3032::ac43:a954115.85.145.54124.150.132.39
●NScurt.ns.cloudflare.com2026-02-15 → 2026-03-25 · 3 obs
○ 2020-03-05 10:47:50
● 2026-02-15 11:28:22
● 2026-03-25 09:37:06
●NSirena.ns.cloudflare.com2026-02-15 → 2026-03-25 · 3 obs
○ 2020-03-05 10:47:50
● 2026-02-15 11:28:22
● 2026-03-25 09:37:06
○NSlocalhost\@2020-03-05 → 2020-03-05 · 4 obs
○ 2016-11-20 06:38:44
● 2020-03-05 10:47:50
○ 2026-02-15 11:28:22
○ 2026-03-25 09:37:06
○NSns.beststudy.tw2015-08-12 → 2016-11-20 · 4 obs
● 2015-08-12 04:05:16
● 2016-11-20 06:38:44
○ 2020-03-05 10:47:50
○ 2026-03-25 09:37:06
○NSns1.cyberdns.tw2020-03-05 → 2020-03-05 · 4 obs
○ 2016-11-20 06:38:44
● 2020-03-05 10:47:50
○ 2026-02-15 11:28:22
○ 2026-03-25 09:37:06
○NSns2.cyberdns.tw2020-03-05 → 2020-03-05 · 4 obs
○ 2016-11-20 06:38:44
● 2020-03-05 10:47:50
○ 2026-02-15 11:28:22
○ 2026-03-25 09:37:06
●MXmail.beststudy.tw2020-03-05 → 2026-03-25 · 3 obs
○ 2016-11-20 06:38:44
● 2020-03-05 10:47:50
● 2026-03-25 09:37:06
○MXmx.dspams.com2015-08-12 → 2016-11-20 · 4 obs
● 2015-08-12 04:05:16
● 2016-11-20 06:38:44
○ 2020-03-05 10:47:50
○ 2026-03-25 09:37:06
●A104.21.87.962026-02-15 → 2026-03-25 · 3 obs
○ 2020-03-05 10:47:50
● 2026-02-15 11:28:22
● 2026-03-25 09:37:06
○A115.85.145.542020-03-05 → 2020-03-05 · 4 obs
○ 2016-11-20 06:38:44
● 2020-03-05 10:47:50
○ 2026-02-15 11:28:22
○ 2026-03-25 09:37:06
○A124.150.132.392015-08-12 → 2016-11-20 · 4 obs
● 2015-08-12 04:05:16
● 2016-11-20 06:38:44
○ 2020-03-05 10:47:50
○ 2026-03-25 09:37:06
●A172.67.169.842026-02-15 → 2026-03-25 · 3 obs
○ 2020-03-05 10:47:50
● 2026-02-15 11:28:22
● 2026-03-25 09:37:06
●A2606:4700:3032::6815:57602026-02-15 → 2026-03-25 · 3 obs
○ 2020-03-05 10:47:50
● 2026-02-15 11:28:22
● 2026-03-25 09:37:06
●A2606:4700:3032::ac43:a9542026-02-15 → 2026-03-25 · 3 obs
○ 2020-03-05 10:47:50
● 2026-02-15 11:28:22
● 2026-03-25 09:37:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
twa.dns.tw, b.dns.tw, c.dns.tw, d.dns.tw...-
beststudy.twirena.ns.cloudflare.com, curt.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.34.79

NS records: irena.ns.cloudflare.com, curt.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for beststudy.tw (unsigned zone)

⏱️ Timing

Total: 998ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.87.96, 172.67.169.84
AAAA22606:4700:3032::6815:5760, 2606:4700:3032::ac43:a954
NS2curt.ns.cloudflare.com, irena.ns.cloudflare.com
MX1mail.beststudy.tw (pri: 10)
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1curt.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

beststudy.tw resolves to four IPs: 2606:4700:3032::6815:5760, 2606:4700:3032::ac43:a954, 104.21.87.96 and 172.67.169.84.

Other host names such as css-faciles.com, 88aa88.sbs, autocpa.net, morfem.kpt.co.id and spencerisahuman.com share IP numbers with beststudy.tw.

Name Servers

beststudy.tw is delegated to two name servers: curt.ns.cloudflare.com and irena.ns.cloudflare.com.

beststudy.tw uses the same name server setup as other domains, including taiga.com.tw, feng-yi.com, blusen.com.tw, fongchii.com and immunotec.com.tw.

At least part of the name servers for beststudy.tw are shared with other domains, for instance travelvoyages.co.in, hfzhfia.com, preprava.ie, manga-zone.org and gsnrc.com.

These name servers are commonly used alongside the name servers cartman.ns.cloudflare.com.

Host names with six IP numbers:

curt.ns.cloudflare.com points to: 2606:4700:58::adf5:3b5e, 2803:f800:50::6ca2:c15e, 2a06:98c1:50::ac40:215e, 108.162.193.94, 172.64.33.94 and 173.245.59.94.

irena.ns.cloudflare.com points to: 2606:4700:50::a29f:264f, 2803:f800:50::6ca2:c24f, 2a06:98c1:50::ac40:224f, 108.162.194.79, 162.159.38.79 and 172.64.34.79.

Mail Servers

The mail server for beststudy.tw is mail.beststudy.tw.