isteachs.com - dns.ninja

isteachs.com

DNSSEC⚠️ Not signed
A2606:4700:3035::ac43:d225🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:175c🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.23.92Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.210.37🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSleonidas.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c65🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleonidas.ns.cloudflare.com
A2803:f800:50::6ca2:c365🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRleonidas.ns.cloudflare.com
A2a06:98c1:50::ac40:2365🇺🇸 Cloudflare2a06:98c1:50::/45
PTRleonidas.ns.cloudflare.com
A108.162.195.101🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleonidas.ns.cloudflare.com
A162.159.44.101Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleonidas.ns.cloudflare.com
A172.64.35.101🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleonidas.ns.cloudflare.com
NStricia.ns.cloudflare.com
A2606:4700:50::adf5:3ae8🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtricia.ns.cloudflare.com
A2803:f800:50::6ca2:c0e8🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtricia.ns.cloudflare.com
A2a06:98c1:50::ac40:20e8🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtricia.ns.cloudflare.com
A108.162.192.232🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtricia.ns.cloudflare.com
A172.64.32.232🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtricia.ns.cloudflare.com
A173.245.58.232🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtricia.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.23.92, 172.67.210.37
IPv6 hints2606:4700:3035::ac43:d225, 2606:4700:3036::6815:175c
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=2, name=cloudflare-ech.com
SOAleonidas.ns.cloudflare.comdns@cloudflare.com serial=2409320789

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=1783932302

Same first word

isteachs.com

Similar names

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DNS History

15 records (6 active, 9 former)

NSleonidas.ns.cloudflare.comtricia.ns.cloudflare.coma.share-dns.coma2.share-dns.comb.share-dns.netb2.share-dns.netns33.domaincontrol.comns34.domaincontrol.comA104.21.23.92172.67.210.372606:4700:3035::ac43:d2252606:4700:3036::6815:175c13.248.213.45139.162.71.22376.223.67.189
○NSa.share-dns.com2026-07-11 → 2026-07-11 · 3 obs
○ 2026-06-04 15:28:12
● 2026-07-11 12:34:06
○ 2026-07-13 09:11:56
○NSa2.share-dns.com2026-07-11 → 2026-07-11 · 3 obs
○ 2026-06-04 15:28:12
● 2026-07-11 12:34:06
○ 2026-07-13 09:11:56
○NSb.share-dns.net2026-07-11 → 2026-07-11 · 3 obs
○ 2026-06-04 15:28:12
● 2026-07-11 12:34:06
○ 2026-07-13 09:11:56
○NSb2.share-dns.net2026-07-11 → 2026-07-11 · 3 obs
○ 2026-06-04 15:28:12
● 2026-07-11 12:34:06
○ 2026-07-13 09:11:56
●NSleonidas.ns.cloudflare.com2026-07-13 → 2026-07-13 · 2 obs
○ 2026-07-11 12:34:06
● 2026-07-13 09:11:56
○NSns33.domaincontrol.com2026-03-20 → 2026-05-26 · 4 obs
● 2026-03-20 23:51:04
● 2026-05-26 19:15:22
○ 2026-06-04 15:28:12
○ 2026-07-13 09:11:56
○NSns34.domaincontrol.com2026-03-20 → 2026-05-26 · 4 obs
● 2026-03-20 23:51:04
● 2026-05-26 19:15:22
○ 2026-06-04 15:28:12
○ 2026-07-13 09:11:56
●NStricia.ns.cloudflare.com2026-07-13 → 2026-07-13 · 2 obs
○ 2026-07-11 12:34:06
● 2026-07-13 09:11:56
●A104.21.23.922026-07-13 → 2026-07-13 · 2 obs
○ 2026-06-04 15:28:12
● 2026-07-13 09:11:56
○A13.248.213.452026-05-26 → 2026-05-26 · 4 obs
○ 2026-03-23 10:35:00
● 2026-05-26 19:15:22
○ 2026-06-04 15:28:12
○ 2026-07-13 09:11:56
○A139.162.71.2232026-03-20 → 2026-03-23 · 4 obs
● 2026-03-20 23:51:04
● 2026-03-23 10:35:00
○ 2026-05-26 19:15:22
○ 2026-07-13 09:11:56
●A172.67.210.372026-07-13 → 2026-07-13 · 2 obs
○ 2026-06-04 15:28:12
● 2026-07-13 09:11:56
●A2606:4700:3035::ac43:d2252026-07-13 → 2026-07-13 · 2 obs
○ 2026-06-04 15:28:12
● 2026-07-13 09:11:56
●A2606:4700:3036::6815:175c2026-07-13 → 2026-07-13 · 2 obs
○ 2026-06-04 15:28:12
● 2026-07-13 09:11:56
○A76.223.67.1892026-05-26 → 2026-05-26 · 4 obs
○ 2026-03-23 10:35:00
● 2026-05-26 19:15:22
○ 2026-06-04 15:28:12
○ 2026-07-13 09:11:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
isteachs.comtricia.ns.cloudflare.com, leonidas.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.101

NS records: tricia.ns.cloudflare.com, leonidas.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for isteachs.com (unsigned zone)

⏱️ Timing

Total: 105ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.23.92, 172.67.210.37
AAAA22606:4700:3036::6815:175c, 2606:4700:3035::ac43:d225
NS2leonidas.ns.cloudflare.com, tricia.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1leonidas.ns.cloudflare.com dns.cloudflar

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

isteachs.com resolves to four IP addresses: 104.21.23.92, 172.67.210.37, 2606:4700:3035::ac43:d225 and 2606:4700:3036::6815:175c.

dreamfz.com, coolinfographics.com, progstudy.ru plus two other host names have IP numbers in common with isteachs.com.

Name Servers

Two name servers handle the delegation for isteachs.com: leonidas.ns.cloudflare.com and tricia.ns.cloudflare.com.

The name server configuration of isteachs.com is shared with other domains, for instance bjgszc.net, wx-xiguang.com, ckscar.com and two others.

isteachs.com has at least partial name server overlap with other domains, such as vhhp.com, installatori.net, devmacserver5.co.uk and two others.

It is common to find these name servers paired with the name servers jaxson.ns.cloudflare.com, rafe.ns.cloudflare.com, phoenix.ns.cloudflare.com and jeff.ns.cloudflare.com.

Hosts with 6 IP addresses each:

leonidas.ns.cloudflare.com resolves to 108.162.195.101, 162.159.44.101 and 172.64.35.101 among others, with 3 other IP addresses in total.

tricia.ns.cloudflare.com resolves to 108.162.192.232, 172.64.32.232 and 173.245.58.232 among others, with 3 other IP addresses in total.