free-tutorials.org - robtex.com

free-tutorials.org

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:bd4a🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:5984🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.89.132Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.189.74🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSmario.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3bcb🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmario.ns.cloudflare.com
A2803:f800:50::6ca2:c1cb🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmario.ns.cloudflare.com
A2a06:98c1:50::ac40:21cb🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmario.ns.cloudflare.com
A108.162.193.203🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmario.ns.cloudflare.com
A172.64.33.203🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmario.ns.cloudflare.com
A173.245.59.203🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmario.ns.cloudflare.com
NSrose.ns.cloudflare.com
A2606:4700:50::adf5:3a8d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrose.ns.cloudflare.com
A2803:f800:50::6ca2:c08d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRrose.ns.cloudflare.com
A2a06:98c1:50::ac40:208d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRrose.ns.cloudflare.com
A108.162.192.141🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrose.ns.cloudflare.com
A172.64.32.141🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrose.ns.cloudflare.com
A173.245.58.141🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrose.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.89.132, 172.67.189.74
IPv62606:4700:3031::ac43:bd4a, 2606:4700:3037::6815:5984
SOAmario.ns.cloudflare.comdns@cloudflare.com serial=2396876035

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=1771291736

Same first word

free-tutorials.org

DNS History

17 records (6 active, 11 former)

20162017201820192020202120222023202420252026NSmario.ns.cloudflare.comrose.ns.cloudflare.comns1bqx.name.comns2jrt.name.comns3flt.name.comns4dfh.name.comMX176.9.67.141176.9.67.141188.26.104.8582.77.16.142A104.21.89.132172.67.189.742606:4700:3031::ac43:bd4a2606:4700:3037::6815:5984176.9.67.141188.26.104.8582.77.16.142
●NSmario.ns.cloudflare.com2026-02-16 → 2026-03-09 · 3 obs
○ 2016-12-29 22:01:28
● 2026-02-16 12:34:28
● 2026-03-09 09:50:26
○NSns1bqx.name.com2015-06-17 → 2016-12-29 · 4 obs
● 2015-06-17 23:01:38
● 2016-12-29 22:01:28
○ 2026-02-16 12:34:28
○ 2026-03-09 09:50:26
○NSns2jrt.name.com2015-06-17 → 2016-12-29 · 4 obs
● 2015-06-17 23:01:38
● 2016-12-29 22:01:28
○ 2026-02-16 12:34:28
○ 2026-03-09 09:50:26
○NSns3flt.name.com2015-06-17 → 2016-12-29 · 4 obs
● 2015-06-17 23:01:38
● 2016-12-29 22:01:28
○ 2026-02-16 12:34:28
○ 2026-03-09 09:50:26
○NSns4dfh.name.com2015-06-17 → 2016-12-29 · 4 obs
● 2015-06-17 23:01:38
● 2016-12-29 22:01:28
○ 2026-02-16 12:34:28
○ 2026-03-09 09:50:26
●NSrose.ns.cloudflare.com2026-02-16 → 2026-03-09 · 3 obs
○ 2016-12-29 22:01:28
● 2026-02-16 12:34:28
● 2026-03-09 09:50:26
○MX176.9.67.1412015-11-06 → 2015-11-06 · 4 obs
○ 2015-06-17 23:01:38
● 2015-11-06 20:12:10
○ 2016-02-04 07:40:04
○ 2026-03-09 09:50:26
○MX176.9.67.1412015-06-17 → 2015-06-17 · 3 obs
● 2015-06-17 23:01:38
○ 2015-11-06 20:12:10
○ 2026-03-09 09:50:26
○MX188.26.104.852016-12-29 → 2026-02-16 · 5 obs
○ 2016-04-29 05:27:02
● 2016-12-29 22:01:28
● 2026-02-16 12:34:28
○ 2026-02-19 18:19:32
○ 2026-03-09 09:50:26
○MX82.77.16.1422016-02-04 → 2016-04-29 · 5 obs
○ 2015-11-06 20:12:10
● 2016-02-04 07:40:04
● 2016-04-29 05:27:02
○ 2016-12-29 22:01:28
○ 2026-03-09 09:50:26
●A104.21.89.1322026-02-16 → 2026-03-09 · 3 obs
○ 2016-12-29 22:01:28
● 2026-02-16 12:34:28
● 2026-03-09 09:50:26
●A172.67.189.742026-02-16 → 2026-03-09 · 3 obs
○ 2016-12-29 22:01:28
● 2026-02-16 12:34:28
● 2026-03-09 09:50:26
○A176.9.67.1412015-06-17 → 2015-11-06 · 4 obs
● 2015-06-17 23:01:38
● 2015-11-06 20:12:10
○ 2016-02-04 07:40:04
○ 2026-03-09 09:50:26
○A188.26.104.852016-12-29 → 2016-12-29 · 4 obs
○ 2016-04-29 05:27:02
● 2016-12-29 22:01:28
○ 2026-02-16 12:34:28
○ 2026-03-09 09:50:26
●A2606:4700:3031::ac43:bd4a2026-02-16 → 2026-03-09 · 3 obs
○ 2016-12-29 22:01:28
● 2026-02-16 12:34:28
● 2026-03-09 09:50:26
●A2606:4700:3037::6815:59842026-02-16 → 2026-03-09 · 3 obs
○ 2016-12-29 22:01:28
● 2026-02-16 12:34:28
● 2026-03-09 09:50:26
○A82.77.16.1422016-02-04 → 2016-04-29 · 5 obs
○ 2015-11-06 20:12:10
● 2016-02-04 07:40:04
● 2016-04-29 05:27:02
○ 2016-12-29 22:01:28
○ 2026-03-09 09:50:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb2.org.afilias-nst.org, b0.org.afilias-nst.org, d0.org.afilias-nst.org-
free-tutorials.orgmario.ns.cloudflare.com, rose.ns.cloudflare.com-

✅ Authoritative Response

Server: 173.245.58.141

NS records: mario.ns.cloudflare.com, rose.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for free-tutorials.org (unsigned zone)

⏱️ Timing

Total: 493ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.89.132, 172.67.189.74
AAAA22606:4700:3037::6815:5984, 2606:4700:3031::ac43:bd4a
NS2mario.ns.cloudflare.com, rose.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1mario.ns.cloudflare.com dns.cloudflare.c

Analysis

IP Addresses

free-tutorials.org refers to four IP numbers: 2606:4700:3031::ac43:bd4a, 2606:4700:3037::6815:5984, 104.21.89.132 and 172.67.189.74.

Other host names, for instance www.scriptapi.dev, azgame.net, tesd-536209.academyqam.ru, 567077.cn and tesd-415732.academyqam.ru share IP numbers with free-tutorials.org.

Name Servers

free-tutorials.org's delegation uses two name servers: mario.ns.cloudflare.com and rose.ns.cloudflare.com.

free-tutorials.org uses the same name server setup as other domains, such as unmikcustoms.org, avilink.net, midwestperegrine.org, 785013.com and bgfi.com.

free-tutorials.org at least partially shares name servers with other domains, including tweek.life, 215qq.com, clearcode.cn, solonrice.com and 99rbrb.com.

These name servers are commonly used with elaine.ns.cloudflare.com, julissa.ns.cloudflare.com and wesley.ns.cloudflare.com.

Host names with six IP numbers:

mario.ns.cloudflare.com points to 2606:4700:58::adf5:3bcb, 2803:f800:50::6ca2:c1cb, 2a06:98c1:50::ac40:21cb, 108.162.193.203, 172.64.33.203 and 173.245.59.203.

rose.ns.cloudflare.com points to 2606:4700:50::adf5:3a8d, 2803:f800:50::6ca2:c08d, 2a06:98c1:50::ac40:208d, 108.162.192.141, 172.64.32.141 and 173.245.58.141.