ns.stackoverflow.ca - robtex.com

ns.stackoverflow.ca

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:3df0🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:d8fd🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.61.240Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.216.253🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.61.240, 172.67.216.253
IPv6 hints2606:4700:3031::6815:3df0, 2606:4700:3035::ac43:d8fd
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=96, name=cloudflare-ech.com

stackoverflow.ca

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:3df0🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:d8fd🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.61.240Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.216.253🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbayan.ns.cloudflare.com ⭐
NSlana.ns.cloudflare.com
TXTv=spf1 -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.61.240, 172.67.216.253
IPv6 hints2606:4700:3031::6815:3df0, 2606:4700:3035::ac43:d8fd
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=18, name=cloudflare-ech.com
SOAbayan.ns.cloudflare.comdns@cloudflare.com serial=2401141288

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DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026A104.21.61.240172.67.216.2532606:4700:3031::6815:3df02606:4700:3035::ac43:d8fd75.126.102.230
●A104.21.61.2402026-02-14 → 2026-04-23 · 3 obs
○ 2016-04-17 03:29:12
● 2026-02-14 19:53:06
● 2026-04-23 19:34:34
●A172.67.216.2532026-02-14 → 2026-04-23 · 3 obs
○ 2016-04-17 03:29:12
● 2026-02-14 19:53:06
● 2026-04-23 19:34:34
●A2606:4700:3031::6815:3df02026-02-14 → 2026-04-23 · 3 obs
○ 2016-04-17 03:29:12
● 2026-02-14 19:53:06
● 2026-04-23 19:34:34
●A2606:4700:3035::ac43:d8fd2026-02-14 → 2026-04-23 · 3 obs
○ 2016-04-17 03:29:12
● 2026-02-14 19:53:06
● 2026-04-23 19:34:34
○A75.126.102.2302015-06-22 → 2016-04-17 · 4 obs
● 2015-06-22 21:33:26
● 2016-04-17 03:29:12
○ 2026-02-14 19:53:06
○ 2026-04-23 19:34:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cac.ca-servers.ca, d.ca-servers.ca, j.ca-servers.ca, any.ca-servers.ca-
stackoverflow.calana.ns.cloudflare.com, bayan.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.192.182

NS records: lana.ns.cloudflare.com, bayan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stackoverflow.ca (unsigned zone)

⏱️ Timing

Total: 211ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.61.240, 172.67.216.253
AAAA22606:4700:3035::ac43:d8fd, 2606:4700:3031::6815:3df0
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

ns.stackoverflow.ca resolves to four IP numbers: 2606:4700:3031::6815:3df0, 2606:4700:3035::ac43:d8fd, 104.21.61.240 and 172.67.216.253.

Other host names such as www.publive.com, phuquocislandtourism.com, buyheating.co.uk, cococolab.com and www.upvcwindows-edinburgh.uk share IPs with ns.stackoverflow.ca.