21howto.com - robtex.com

21howto.com

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:b95f🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:541b🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.84.27Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.185.95🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSabdullah.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2ccb🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRabdullah.ns.cloudflare.com
A2803:f800:50::6ca2:c3cb🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRabdullah.ns.cloudflare.com
A2a06:98c1:50::ac40:23cb🇺🇸 Cloudflare2a06:98c1:50::/45
PTRabdullah.ns.cloudflare.com
A108.162.195.203🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRabdullah.ns.cloudflare.com
A162.159.44.203Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRabdullah.ns.cloudflare.com
A172.64.35.203🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRabdullah.ns.cloudflare.com
NSaleena.ns.cloudflare.com
A2606:4700:50::a29f:2651🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaleena.ns.cloudflare.com
A2803:f800:50::6ca2:c251🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRaleena.ns.cloudflare.com
A2a06:98c1:50::ac40:2251🇺🇸 Cloudflare2a06:98c1:50::/45
PTRaleena.ns.cloudflare.com
A108.162.194.81🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaleena.ns.cloudflare.com
A162.159.38.81Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaleena.ns.cloudflare.com
A172.64.34.81🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaleena.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.84.27, 172.67.185.95
IPv6 hints2606:4700:3031::ac43:b95f, 2606:4700:3034::6815:541b
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=119, name=cloudflare-ech.com
SOAabdullah.ns.cloudflare.comdns@cloudflare.com serial=2401364984

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1777036706

Same first word

21howto.com

DNS History

10 records (6 active, 4 former)

NSabdullah.ns.cloudflare.comaleena.ns.cloudflare.comA104.21.84.27172.67.185.952606:4700:3031::ac43:b95f2606:4700:3034::6815:541b188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●NSabdullah.ns.cloudflare.com2026-02-28 → 2026-04-24 · 2 obs
● 2026-02-28 03:17:04
● 2026-04-24 13:24:26
●NSaleena.ns.cloudflare.com2026-02-28 → 2026-04-24 · 2 obs
● 2026-02-28 03:17:04
● 2026-04-24 13:24:26
●A104.21.84.272026-04-24 → 2026-04-24 · 3 obs
○ 2026-02-28 03:17:04
○ 2026-04-02 22:34:04
● 2026-04-24 13:24:26
●A172.67.185.952026-04-24 → 2026-04-24 · 3 obs
○ 2026-02-28 03:17:04
○ 2026-04-02 22:34:04
● 2026-04-24 13:24:26
○A188.114.96.02026-02-28 → 2026-04-02 · 3 obs
● 2026-02-28 03:17:04
● 2026-04-02 22:34:04
○ 2026-04-24 13:24:26
○A188.114.97.02026-02-28 → 2026-04-02 · 3 obs
● 2026-02-28 03:17:04
● 2026-04-02 22:34:04
○ 2026-04-24 13:24:26
●A2606:4700:3031::ac43:b95f2026-04-24 → 2026-04-24 · 3 obs
○ 2026-02-28 03:17:04
○ 2026-04-02 22:34:04
● 2026-04-24 13:24:26
●A2606:4700:3034::6815:541b2026-04-24 → 2026-04-24 · 3 obs
○ 2026-02-28 03:17:04
○ 2026-04-02 22:34:04
● 2026-04-24 13:24:26
○A2a06:98c1:3120::2026-02-28 → 2026-04-02 · 3 obs
● 2026-02-28 03:17:04
● 2026-04-02 22:34:04
○ 2026-04-24 13:24:26
○A2a06:98c1:3121::2026-02-28 → 2026-04-02 · 3 obs
● 2026-02-28 03:17:04
● 2026-04-02 22:34:04
○ 2026-04-24 13:24:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
21howto.comaleena.ns.cloudflare.com, abdullah.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.203

NS records: aleena.ns.cloudflare.com, abdullah.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21howto.com (unsigned zone)

⏱️ Timing

Total: 159ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.84.27, 172.67.185.95
AAAA22606:4700:3034::6815:541b, 2606:4700:3031::ac43:b95f
NS2abdullah.ns.cloudflare.com, aleena.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1abdullah.ns.cloudflare.com dns.cloudflar

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (aleena.ns.cloudflare.com, aleena.ns.cloudflare.com, aleena.ns.cloudflare.com...)

Analysis

IP Addresses

21howto.com points to four IP numbers: 2606:4700:3031::ac43:b95f, 2606:4700:3034::6815:541b, 104.21.84.27 and 172.67.185.95.

For instance, other host names casinofrancais.gg, consejomexicano.com.mx, binpdone.com, chapterlab.com and bspokegroup.co.uk share IP numbers with 21howto.com.

Name Servers

21howto.com is delegated to two name servers: abdullah.ns.cloudflare.com and aleena.ns.cloudflare.com.

21howto.com uses the same name server setup as other domains such as ray20.com, pendinelrc.com, threeriverscrane.com, phoenixtradesdepot.com and bistrodia.com.

21howto.com shares name servers with other domains at least partially, for example china-forgedwheels.com, hongshijixie.com, cccspa.org, nononsensecleaningservices.com and xmwotson.com.

These name servers are commonly used with ignacio.ns.cloudflare.com, savanna.ns.cloudflare.com and clara.ns.cloudflare.com.

Host names with six IP numbers: host name abdullah.ns.cloudflare.com points to: 2606:4700:58::a29f:2ccb, 2803:f800:50::6ca2:c3cb, 2a06:98c1:50::ac40:23cb, 108.162.195.203, 162.159.44.203 and 172.64.35.203; host name aleena.ns.cloudflare.com points to: 2606:4700:50::a29f:2651, 2803:f800:50::6ca2:c251, 2a06:98c1:50::ac40:2251, 108.162.194.81, 162.159.38.81 and 172.64.34.81.