knowapp.com - robtex.com

knowapp.com

DNSSEC⚠️ Not signed
A2606:4700:3035::6815:1e43🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:ac37🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.30.67Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.172.55🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScourtney.ns.cloudflare.com ⭐
A2606:4700:50::a29f:2682🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcourtney.ns.cloudflare.com
A2803:f800:50::6ca2:c282🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcourtney.ns.cloudflare.com
A2a06:98c1:50::ac40:2282🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcourtney.ns.cloudflare.com
A108.162.194.130🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRip-108-162-194-130.defastlink.net
A162.159.38.130Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRip-162-159-38-130.defastlink.net
A172.64.34.130🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRip-172-64-34-130.defastlink.net
NSrex.ns.cloudflare.com
A2606:4700:58::a29f:2c0d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrex.ns.cloudflare.com
A2803:f800:50::6ca2:c30d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRrex.ns.cloudflare.com
A2a06:98c1:50::ac40:230d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRrex.ns.cloudflare.com
A108.162.195.13🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrex.ns.cloudflare.com
A162.159.44.13Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrex.ns.cloudflare.com
A172.64.35.13🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrex.ns.cloudflare.com
MXalt1.aspmx.l.google.com ⭐
A2607:f8b0:4003:c30::1b🇺🇸 Google2607:f8b0:4003::/48
PTRyutulis-in-f27.1e100.net
A74.125.27.26🇺🇸 Google74.125.27.0/24
PTRyutulis-in-f26.1e100.net
MXalt2.aspmx.l.google.com ⭐
A2607:f8b0:4001:c70::1a🇺🇸 Google2607:f8b0:4001::/48
PTRyucbful-in-f26.1e100.net
A192.178.209.26🇺🇸 Google192.178.209.0/24
PTRyucbful-in-f26.1e100.net
MXalt3.aspmx.l.google.com ⭐
A2607:f8b0:4024:c0d::1b🇺🇸 Google2607:f8b0::/32
PTRmj-in-f27.1e100.net
A192.178.152.26🇺🇸 Google192.178.152.0/24
PTRmj-in-f26.1e100.net
MXalt4.aspmx.l.google.com ⭐
A2607:f8b0:4023:403::1a🇺🇸 Google2607:f8b0::/32
PTRgg-in-f26.1e100.net
A142.250.96.27🇺🇸 Google142.250.96.0/24
PTRgg-in-f27.1e100.net
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c19::1b🇺🇸 Google2607:f8b0:4004::/48
PTRbk-in-f27.1e100.net
A172.253.62.27🇺🇸 Google172.253.62.0/24
PTRbc-in-f27.1e100.net
TXTgoogle-site-verification=1QEm7q00dgWUWEzSGH3w88pWPDJf8GRRzm8WDey8xX0
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.30.67, 172.67.172.55
IPv62606:4700:3035::6815:1e43, 2606:4700:3036::ac43:ac37
SOAcourtney.ns.cloudflare.comdns@cloudflare.com serial=2397995286

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=1771291435

Subdomains

mail.knowapp.com

Same first word

knowapp.com
knowapp.de

Similar names

appknow.net

DNS History

19 records (11 active, 8 former)

20162017201820192020202120222023202420252026NScourtney.ns.cloudflare.comrex.ns.cloudflare.comns1.mediatemple.netns2.mediatemple.netMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comaspmx4.googlemail.comaspmx5.googlemail.commail.knowapp.comA104.21.30.67172.67.172.552606:4700:3035::6815:1e432606:4700:3036::ac43:ac3772.47.224.142
●NScourtney.ns.cloudflare.com2026-02-17 → 2026-03-04 · 3 obs
○ 2017-12-12 11:53:38
● 2026-02-17 18:11:36
● 2026-03-04 03:29:48
○NSns1.mediatemple.net2015-06-05 → 2017-12-12 · 4 obs
● 2015-06-05 16:54:12
● 2017-12-12 11:53:38
○ 2026-02-17 18:11:36
○ 2026-03-04 03:29:48
○NSns2.mediatemple.net2015-06-05 → 2017-12-12 · 4 obs
● 2015-06-05 16:54:12
● 2017-12-12 11:53:38
○ 2026-02-17 18:11:36
○ 2026-03-04 03:29:48
●NSrex.ns.cloudflare.com2026-02-17 → 2026-03-04 · 3 obs
○ 2017-12-12 11:53:38
● 2026-02-17 18:11:36
● 2026-03-04 03:29:48
●MXalt1.aspmx.l.google.com2015-06-05 → 2026-03-04 · 6 obs
● 2015-06-05 16:54:12
● 2016-09-14 08:47:48
○ 2016-12-24 17:19:20
○ 2017-12-12 11:53:38
● 2026-02-17 18:11:36
● 2026-03-04 03:29:48
●MXalt2.aspmx.l.google.com2015-06-05 → 2026-03-04 · 6 obs
● 2015-06-05 16:54:12
● 2016-09-14 08:47:48
○ 2016-12-24 17:19:20
○ 2017-12-12 11:53:38
● 2026-02-17 18:11:36
● 2026-03-04 03:29:48
●MXalt3.aspmx.l.google.com2026-02-17 → 2026-03-04 · 3 obs
○ 2017-12-12 11:53:38
● 2026-02-17 18:11:36
● 2026-03-04 03:29:48
●MXalt4.aspmx.l.google.com2026-02-17 → 2026-03-04 · 3 obs
○ 2017-12-12 11:53:38
● 2026-02-17 18:11:36
● 2026-03-04 03:29:48
●MXaspmx.l.google.com2015-06-05 → 2026-03-04 · 6 obs
● 2015-06-05 16:54:12
● 2016-09-14 08:47:48
○ 2016-12-24 17:19:20
○ 2017-12-12 11:53:38
● 2026-02-17 18:11:36
● 2026-03-04 03:29:48
○MXaspmx2.googlemail.com2015-06-05 → 2016-09-14 · 4 obs
● 2015-06-05 16:54:12
● 2016-09-14 08:47:48
○ 2016-12-24 17:19:20
○ 2026-03-04 03:29:48
○MXaspmx3.googlemail.com2015-06-05 → 2016-09-14 · 4 obs
● 2015-06-05 16:54:12
● 2016-09-14 08:47:48
○ 2016-12-24 17:19:20
○ 2026-03-04 03:29:48
○MXaspmx4.googlemail.com2015-06-05 → 2016-09-14 · 4 obs
● 2015-06-05 16:54:12
● 2016-09-14 08:47:48
○ 2016-12-24 17:19:20
○ 2026-03-04 03:29:48
○MXaspmx5.googlemail.com2015-06-05 → 2016-09-14 · 4 obs
● 2015-06-05 16:54:12
● 2016-09-14 08:47:48
○ 2016-12-24 17:19:20
○ 2026-03-04 03:29:48
○MXmail.knowapp.com2016-12-24 → 2017-12-12 · 5 obs
○ 2016-09-14 08:47:48
● 2016-12-24 17:19:20
● 2017-12-12 11:53:38
○ 2026-02-17 18:11:36
○ 2026-03-04 03:29:48
●A104.21.30.672026-02-17 → 2026-03-04 · 3 obs
○ 2017-12-12 11:53:38
● 2026-02-17 18:11:36
● 2026-03-04 03:29:48
●A172.67.172.552026-02-17 → 2026-03-04 · 3 obs
○ 2017-12-12 11:53:38
● 2026-02-17 18:11:36
● 2026-03-04 03:29:48
●A2606:4700:3035::6815:1e432026-02-17 → 2026-03-04 · 3 obs
○ 2017-12-12 11:53:38
● 2026-02-17 18:11:36
● 2026-03-04 03:29:48
●A2606:4700:3036::ac43:ac372026-02-17 → 2026-03-04 · 3 obs
○ 2017-12-12 11:53:38
● 2026-02-17 18:11:36
● 2026-03-04 03:29:48
○A72.47.224.1422015-06-05 → 2017-12-12 · 4 obs
● 2015-06-05 16:54:12
● 2017-12-12 11:53:38
○ 2026-02-17 18:11:36
○ 2026-03-04 03:29:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
come.gtld-servers.net, f.gtld-servers.net, h.gtld-servers.net, c.gtld-servers.net...-
knowapp.comcourtney.ns.cloudflare.com, rex.ns.cloudflare.com12 records

✅ Authoritative Response

Server: 108.162.194.130

NS records: courtney.ns.cloudflare.com, rex.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowapp.com (unsigned zone)

⏱️ Timing

Total: 295ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.30.67, 172.67.172.55
AAAA22606:4700:3036::ac43:ac37, 2606:4700:3035::6815:1e43
NS2courtney.ns.cloudflare.com, rex.ns.cloudflare.com
MX5ALT1.ASPMX.L.GOOGLE.com (pri: 0), ALT2.ASPMX.L.GOOGLE.com (pri: 0)...
TXT1google-site-verification=1QEm7q00dgWUWEz
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1courtney.ns.cloudflare.com dns.cloudflar

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The parent of mail.knowapp.com is knowapp.com.

IP Addresses

knowapp.com maps to four IP numbers: 2606:4700:3035::6815:1e43, 2606:4700:3036::ac43:ac37, 104.21.30.67 and 172.67.172.55.

Other host names such as xhuaw.com.cn, www.fsfbcitas.co, www.001921.com, 98955u.com and agency.vc share IPs with knowapp.com.

Name Servers

Two name servers courtney.ns.cloudflare.com and rex.ns.cloudflare.com handle the delegation for knowapp.com.

knowapp.com shares the same name server setup as other domains, for example smarshblast.com, mabar.id, globalcreditpartnersarchive.com, garlinghouse.pro and webrevisions.com.

knowapp.com at least partially shares name servers with other domains, for example yourminoru.ca, furrydogmother.co.uk, iserestaurantnyc.com, bigsoko.com and heiheinews.com.

These name servers are often used with heather.ns.cloudflare.com, ligia.ns.cloudflare.com, chloe.ns.cloudflare.com, rosalyn.ns.cloudflare.com and fish.ns.cloudflare.com.

Host names with six IP numbers:

courtney.ns.cloudflare.com points to 2606:4700:50::a29f:2682, 2803:f800:50::6ca2:c282, 2a06:98c1:50::ac40:2282, 108.162.194.130, 162.159.38.130 and 172.64.34.130.

rex.ns.cloudflare.com points to 2606:4700:58::a29f:2c0d, 2803:f800:50::6ca2:c30d, 2a06:98c1:50::ac40:230d, 108.162.195.13, 162.159.44.13 and 172.64.35.13.

Mail Servers

knowapp.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

knowapp.com shares at least partially some mail servers with other domains, for instance ns500671.ns500671.ns500671.ns500704.ns500704.ns500704.ns500688.ns500649.ns500671.ns500153.tenderladiesbz.com, ns500698.ns500759.ns500759.ns500758.ns500698.ns500698.ns500698.ns500735.ns500736.ns500698.ns500698.ns500708.ns500708.ns500619.ns500619.ns500652.ns500619.trackreceptor.com, ns500698.ns500758.ns500759.ns500698.ns500759.ns500698.ns500736.ns500698.ns500736.ns500698.ns500708.ns500708.ns500698.ns500708.ns500708.ns500652.trackreceptor.com, ns500742.ns500742.ns500754.ns500742.ns500742.ns500671.ns500754.ns500704.ns500678.ns500671.ns500649.ns500291.ns500291.ns500291.ns500131.lustychickser.com and acadiainitiative.com.

these mail servers are often used together with aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Host names with two IP numbers

Each host name points to two IP numbers:

aspmx.l.google.com points to 2607:f8b0:4004:c19::1b and 172.253.62.27

alt1.aspmx.l.google.com points to 2607:f8b0:4003:c30::1b and 74.125.27.26

alt2.aspmx.l.google.com points to 2607:f8b0:4001:c70::1a and 192.178.209.26

alt3.aspmx.l.google.com points to 2607:f8b0:4024:c0d::1b and 192.178.152.26

alt4.aspmx.l.google.com points to 2607:f8b0:4023:403::1a and 142.250.96.27