selfinstructions.com - dns.ninja

selfinstructions.com

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:8c50🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:5ed3🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.94.211Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.140.80🇺🇸 Cloudflare172.67.128.0/20 , 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
NSlorna.ns.cloudflare.com
A2606:4700:50::adf5:3abe🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlorna.ns.cloudflare.com
A2803:f800:50::6ca2:c0be🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlorna.ns.cloudflare.com
A2a06:98c1:50::ac40:20be🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlorna.ns.cloudflare.com
A108.162.192.190🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlorna.ns.cloudflare.com
A172.64.32.190🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlorna.ns.cloudflare.com
A173.245.58.190🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlorna.ns.cloudflare.com
MXmx.selfinstructions.com ⭐
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.94.211, 172.67.140.80
IPv6 hints2606:4700:3033::ac43:8c50, 2606:4700:3035::6815:5ed3
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=18, name=cloudflare-ech.com
SOAcurt.ns.cloudflare.comdns@cloudflare.com serial=2411153028

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=1786742139

Subdomains

mx.selfinstructions.com

Same first word

selfinstructions.com

DNS History

18 records (7 active, 11 former)

20162017201820192020202120222023202420252026NScurt.ns.cloudflare.comlorna.ns.cloudflare.comns07.domaincontrol.comns08.domaincontrol.comMXmx.selfinstructions.comdc-776093a67af7.selfinstructions.commailstore1.secureserver.netsmtp.secureserver.netA104.21.94.211172.67.140.802606:4700:3033::ac43:8c502606:4700:3035::6815:5ed3104.27.188.51104.27.189.51145.14.148.88184.168.221.572606:4700:30::681b:bc332606:4700:30::681b:bd33
●NScurt.ns.cloudflare.com2019-12-31 → 2026-08-14 · 3 obs
○ 2017-01-31 19:56:06
● 2019-12-31 13:34:58
● 2026-08-14 21:27:44
●NSlorna.ns.cloudflare.com2019-12-31 → 2026-08-14 · 3 obs
○ 2017-01-31 19:56:06
● 2019-12-31 13:34:58
● 2026-08-14 21:27:44
○NSns07.domaincontrol.com2015-05-28 → 2016-04-24 · 4 obs
● 2015-05-28 22:51:18
● 2016-04-24 04:44:54
○ 2017-01-31 19:56:06
○ 2026-08-14 21:27:44
○NSns08.domaincontrol.com2015-05-28 → 2016-04-24 · 4 obs
● 2015-05-28 22:51:18
● 2016-04-24 04:44:54
○ 2017-01-31 19:56:06
○ 2026-08-14 21:27:44
○MXdc-776093a67af7.selfinstructions.com2019-12-31 → 2019-12-31 · 4 obs
○ 2017-01-31 19:56:06
● 2019-12-31 13:34:58
○ 2026-04-15 00:44:44
○ 2026-08-14 21:27:44
○MXmailstore1.secureserver.net2015-05-28 → 2016-04-24 · 4 obs
● 2015-05-28 22:51:18
● 2016-04-24 04:44:54
○ 2017-01-31 19:56:06
○ 2026-08-14 21:27:44
●MXmx.selfinstructions.com2026-04-15 → 2026-08-14 · 3 obs
○ 2019-12-31 13:34:58
● 2026-04-15 00:44:44
● 2026-08-14 21:27:44
○MXsmtp.secureserver.net2015-05-28 → 2016-04-24 · 4 obs
● 2015-05-28 22:51:18
● 2016-04-24 04:44:54
○ 2017-01-31 19:56:06
○ 2026-08-14 21:27:44
●A104.21.94.2112026-07-05 → 2026-08-14 · 3 obs
○ 2026-04-15 00:44:44
● 2026-07-05 03:53:22
● 2026-08-14 21:27:44
○A104.27.188.512019-12-31 → 2019-12-31 · 4 obs
○ 2017-01-31 19:56:06
● 2019-12-31 13:34:58
○ 2026-04-15 00:44:44
○ 2026-08-14 21:27:44
○A104.27.189.512019-12-31 → 2019-12-31 · 4 obs
○ 2017-01-31 19:56:06
● 2019-12-31 13:34:58
○ 2026-04-15 00:44:44
○ 2026-08-14 21:27:44
○A145.14.148.882026-04-15 → 2026-04-15 · 4 obs
○ 2019-12-31 13:34:58
● 2026-04-15 00:44:44
○ 2026-07-05 03:53:22
○ 2026-08-14 21:27:44
●A172.67.140.802026-07-05 → 2026-08-14 · 3 obs
○ 2026-04-15 00:44:44
● 2026-07-05 03:53:22
● 2026-08-14 21:27:44
○A184.168.221.572015-05-28 → 2016-04-24 · 4 obs
● 2015-05-28 22:51:18
● 2016-04-24 04:44:54
○ 2017-01-31 19:56:06
○ 2026-08-14 21:27:44
○A2606:4700:30::681b:bc332019-12-31 → 2019-12-31 · 4 obs
○ 2017-01-31 19:56:06
● 2019-12-31 13:34:58
○ 2026-04-15 00:44:44
○ 2026-08-14 21:27:44
○A2606:4700:30::681b:bd332019-12-31 → 2019-12-31 · 4 obs
○ 2017-01-31 19:56:06
● 2019-12-31 13:34:58
○ 2026-04-15 00:44:44
○ 2026-08-14 21:27:44
●A2606:4700:3033::ac43:8c502026-07-05 → 2026-08-14 · 3 obs
○ 2026-04-15 00:44:44
● 2026-07-05 03:53:22
● 2026-08-14 21:27:44
●A2606:4700:3035::6815:5ed32026-07-05 → 2026-08-14 · 3 obs
○ 2026-04-15 00:44:44
● 2026-07-05 03:53:22
● 2026-08-14 21:27:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comf.gtld-servers.net, h.gtld-servers.net, g.gtld-servers.net, d.gtld-servers.net...-
selfinstructions.comcurt.ns.cloudflare.com, lorna.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.94

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for selfinstructions.com (unsigned zone)

⏱️ Timing

Total: 180ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.140.80, 104.21.94.211
AAAA22606:4700:3033::ac43:8c50, 2606:4700:3035::6815:5ed3
NS2curt.ns.cloudflare.com, lorna.ns.cloudflare.com
MX1mx.selfinstructions.com (pri: 10)
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1curt.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

selfinstructions.com serves as the parent of mx.selfinstructions.com.

IP Addresses

selfinstructions.com resolves to four IP addresses: 104.21.94.211, 172.67.140.80, 2606:4700:3033::ac43:8c50 and 2606:4700:3035::6815:5ed3.

joyslink.net, cscsports.com, allamericansavings.com and two other host names share IP numbers with selfinstructions.com.

Name Servers

The NS records for selfinstructions.com delegate to curt.ns.cloudflare.com and lorna.ns.cloudflare.com.

selfinstructions.com uses the same name servers as several other domains — among them logins-mx9938.com.mx, chronicsmovie.com, cubers.net and two more.

selfinstructions.com has at least partial name server overlap with other domains, such as xn--80aalwpcfpx2k.xn--p1ai, steamconnmumity.com, jackwetmore.net and two others.

It is common to see these name servers used together with name servers dalary.ns.cloudflare.com and rafe.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

curt.ns.cloudflare.com maps to 108.162.193.94, 172.64.33.94, 173.245.59.94 and 3 additional IP addresses.

lorna.ns.cloudflare.com maps to 108.162.192.190, 172.64.32.190, 173.245.58.190 and 3 additional IP addresses.

Mail Servers

Mail for selfinstructions.com is handled by a single mail server, mx.selfinstructions.com.