mail.mathgurukul.org - robtex.com

mail.mathgurukul.org

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:8dea🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:4f28🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.79.40Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.141.234🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.79.40, 172.67.141.234
IPv6 hints2606:4700:3031::ac43:8dea, 2606:4700:3036::6815:4f28
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=169, name=cloudflare-ech.com

mathgurukul.org

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:8dea🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:4f28🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.79.40Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.141.234🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdahlia.ns.cloudflare.com ⭐
NSsullivan.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.79.40, 172.67.141.234
IPv6 hints2606:4700:3031::ac43:8dea, 2606:4700:3036::6815:4f28
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=169, name=cloudflare-ech.com
SOAdahlia.ns.cloudflare.comdns@cloudflare.com serial=2407807928

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DNS History

7 records (4 active, 3 former)

2008201020122014201620182020202220242026A104.21.79.40172.67.141.2342606:4700:3031::ac43:8dea2606:4700:3036::6815:4f2852.223.13.4165.36.160.26CNAMEmail28.safesecureweb.com
●A104.21.79.402026-07-13 → 2026-07-13 · 3 obs
○ 2016-06-17 09:58:04
● 2026-07-13 05:51:02
● 2026-07-13 05:51:04
●A172.67.141.2342026-07-13 → 2026-07-13 · 3 obs
○ 2016-06-17 09:58:04
● 2026-07-13 05:51:02
● 2026-07-13 05:51:04
●A2606:4700:3031::ac43:8dea2026-07-13 → 2026-07-13 · 3 obs
○ 2016-06-17 09:58:04
● 2026-07-13 05:51:02
● 2026-07-13 05:51:04
●A2606:4700:3036::6815:4f282026-07-13 → 2026-07-13 · 3 obs
○ 2016-06-17 09:58:04
● 2026-07-13 05:51:02
● 2026-07-13 05:51:04
○A52.223.13.412026-07-13 → 2026-07-13 · 2 obs
○ 2026-07-13 05:51:02
○ 2026-07-13 05:51:04
○A65.36.160.262007-08-15 → 2016-06-17 · 4 obs
● 2007-08-15 15:49:06
● 2016-06-17 09:58:04
○ 2026-07-13 05:51:02
○ 2026-07-13 05:51:04
○CNAMEmail28.safesecureweb.com2007-08-15 → 2016-06-17 · 4 obs
● 2007-08-15 15:49:06
● 2016-06-17 09:58:04
○ 2026-07-13 05:51:02
○ 2026-07-13 05:51:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgd0.org.afilias-nst.org, b2.org.afilias-nst.org, b0.org.afilias-nst.org-
mathgurukul.orgsullivan.ns.cloudflare.com, dahlia.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.35.161

NS records: sullivan.ns.cloudflare.com, dahlia.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathgurukul.org (unsigned zone)

⏱️ Timing

Total: 313ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.79.40, 172.67.141.234
AAAA22606:4700:3031::ac43:8dea, 2606:4700:3036::6815:4f28
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

mail.mathgurukul.org has four IP addresses: 104.21.79.40, 172.67.141.234, 2606:4700:3031::ac43:8dea and 2606:4700:3036::6815:4f28.

ekit.net, opcsoft.co.kr, pl-oferta5194890.click plus two other host names have IP numbers in common with mail.mathgurukul.org.