mail.checknumbers.com - robtex.com

mail.checknumbers.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:2e08🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3030::ac43:ddf7🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.46.8Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.221.247🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.46.8, 172.67.221.247
IPv6 hints2606:4700:3030::6815:2e08, 2606:4700:3030::ac43:ddf7
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=153, name=cloudflare-ech.com

checknumbers.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:2e08🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3030::ac43:ddf7🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.46.8Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.221.247🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSandy.ns.cloudflare.com ⭐
NSruth.ns.cloudflare.com
MXsg1-ls8.a2hosting.com ⭐
TXTv=spf1 +mx +a +ip4:85.187.133.193 +include:spf.a2hosting.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.46.8, 172.67.221.247
IPv6 hints2606:4700:3030::6815:2e08, 2606:4700:3030::ac43:ddf7
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=153, name=cloudflare-ech.com
SOAandy.ns.cloudflare.comdns@cloudflare.com serial=2402208096
WOT: SAFE (61/100)
WOT: UNKNOWN (70/100)

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DNS History

14 records (4 active, 10 former)

20162017201820192020202120222023202420252026NSns3.a2hosting.comns4.a2hosting.comMXchecknumbers.comA104.21.46.8172.67.221.2472606:4700:3030::6815:2e082606:4700:3030::ac43:ddf7188.114.96.0188.114.97.0198.100.44.2362a06:98c1:3120::2a06:98c1:3121::45.120.148.3CNAMEchecknumbers.com
○NSns3.a2hosting.com2015-11-18 → 2016-06-19 · 4 obs
● 2015-11-18 03:01:16
● 2016-06-19 13:00:08
○ 2026-02-20 21:30:54
○ 2026-05-11 18:00:46
○NSns4.a2hosting.com2015-11-18 → 2016-06-19 · 4 obs
● 2015-11-18 03:01:16
● 2016-06-19 13:00:08
○ 2026-02-20 21:30:54
○ 2026-05-11 18:00:46
○MXchecknumbers.com2015-11-18 → 2016-06-19 · 4 obs
● 2015-11-18 03:01:16
● 2016-06-19 13:00:08
○ 2026-02-20 21:30:54
○ 2026-05-11 18:00:46
●A104.21.46.82026-02-20 → 2026-05-11 · 6 obs
○ 2016-06-19 13:00:08
● 2026-02-20 21:30:54
● 2026-04-13 07:18:44
○ 2026-04-16 12:37:16
● 2026-05-01 10:34:10
● 2026-05-11 18:00:46
●A172.67.221.2472026-02-20 → 2026-05-11 · 6 obs
○ 2016-06-19 13:00:08
● 2026-02-20 21:30:54
● 2026-04-13 07:18:44
○ 2026-04-16 12:37:16
● 2026-05-01 10:34:10
● 2026-05-11 18:00:46
○A188.114.96.02026-04-16 → 2026-04-16 · 4 obs
○ 2026-04-13 07:18:44
● 2026-04-16 12:37:16
○ 2026-05-01 10:34:10
○ 2026-05-11 18:00:46
○A188.114.97.02026-04-16 → 2026-04-16 · 4 obs
○ 2026-04-13 07:18:44
● 2026-04-16 12:37:16
○ 2026-05-01 10:34:10
○ 2026-05-11 18:00:46
○A198.100.44.2362015-07-14 → 2016-02-24 · 4 obs
● 2015-07-14 02:16:02
● 2016-02-24 17:58:44
○ 2016-06-19 13:00:08
○ 2026-05-11 18:00:46
●A2606:4700:3030::6815:2e082026-02-20 → 2026-05-11 · 6 obs
○ 2016-06-19 13:00:08
● 2026-02-20 21:30:54
● 2026-04-13 07:18:44
○ 2026-04-16 12:37:16
● 2026-05-01 10:34:10
● 2026-05-11 18:00:46
●A2606:4700:3030::ac43:ddf72026-02-20 → 2026-05-11 · 6 obs
○ 2016-06-19 13:00:08
● 2026-02-20 21:30:54
● 2026-04-13 07:18:44
○ 2026-04-16 12:37:16
● 2026-05-01 10:34:10
● 2026-05-11 18:00:46
○A2a06:98c1:3120::2026-04-16 → 2026-04-16 · 4 obs
○ 2026-04-13 07:18:44
● 2026-04-16 12:37:16
○ 2026-05-01 10:34:10
○ 2026-05-11 18:00:46
○A2a06:98c1:3121::2026-04-16 → 2026-04-16 · 4 obs
○ 2026-04-13 07:18:44
● 2026-04-16 12:37:16
○ 2026-05-01 10:34:10
○ 2026-05-11 18:00:46
○A45.120.148.32016-06-19 → 2016-06-19 · 4 obs
○ 2016-02-24 17:58:44
● 2016-06-19 13:00:08
○ 2026-02-20 21:30:54
○ 2026-05-11 18:00:46
○CNAMEchecknumbers.com2015-07-14 → 2016-06-19 · 4 obs
● 2015-07-14 02:16:02
● 2016-06-19 13:00:08
○ 2026-02-20 21:30:54
○ 2026-05-11 18:00:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
checknumbers.comandy.ns.cloudflare.com, ruth.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.143

NS records: andy.ns.cloudflare.com, ruth.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for checknumbers.com (unsigned zone)

⏱️ Timing

Total: 258ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.221.247, 104.21.46.8
AAAA22606:4700:3030::ac43:ddf7, 2606:4700:3030::6815:2e08
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.checknumbers.com resolves to four IPs: 2606:4700:3030::6815:2e08, 2606:4700:3030::ac43:ddf7, 104.21.46.8 and 172.67.221.247.

Other host names such as towerindo.com, ns2.niceascot.com, mail.brownbrush.com, primaryads.com and eliteconditioning.net share IP numbers with mail.checknumbers.com.