`checksheet.app`

DNSSEC	⚠️ Not signed
A	2606:4700:20::681a:a27^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::681a:b27^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::ac43:4663^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.10.39^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.11.39^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.70.99^{🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`grace.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a9f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grace.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c09f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`grace.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:209f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`grace.ns.cloudflare.com`
		A	108.162.192.159^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grace.ns.cloudflare.com`
		A	172.64.32.159^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grace.ns.cloudflare.com`
		A	173.245.58.159^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grace.ns.cloudflare.com`
NS	`ian.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b76^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ian.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c176^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ian.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2176^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ian.ns.cloudflare.com`
		A	108.162.193.118^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ian.ns.cloudflare.com`
		A	172.64.33.118^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ian.ns.cloudflare.com`
		A	173.245.59.118^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ian.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c09::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bh-in-f27.1e100.net`
		A	172.253.63.26^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`aspmx2.googlemail.com`⁽¹⁰⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`aspmx3.googlemail.com`⁽¹⁰⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
TXT	`mailerlite-domain-verification=c0a84af86cb1fed3cef1cec7d63a8d64c801d8cd`
TXT	`v=spf1 include:_spf.mlsend.com include:_spf.mlsend.com a mx include:_spf.elas...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.26.10.39, 104.26.11.39, 172.67.70.99
		IPv6 hints	2606:4700:20::681a:a27, 2606:4700:20::681a:b27, 2606:4700:20::ac43:4663
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=84, name=cloudflare-ech.com
SOA	`grace.ns.cloudflare.com`dns@cloudflare.com serial=2410591586

`app`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=101427

🔒 HSTS Preload (+subdomains)

Same first word

checksheet.co.uk

checksheet.app

DNS History

19 records (13 active, 6 former)

●NSgrace.ns.cloudflare.com2026-05-21 → 2026-08-01 · 3 obs

○ 2020-04-03 20:35:18
● 2026-05-21 17:27:34
● 2026-08-01 05:45:52

●NSian.ns.cloudflare.com2026-05-21 → 2026-08-01 · 3 obs

○ 2020-04-03 20:35:18
● 2026-05-21 17:27:34
● 2026-08-01 05:45:52

○NSjack.ns.cloudflare.com2020-04-03 → 2020-04-03 · 3 obs

● 2020-04-03 20:35:18
○ 2026-05-21 17:27:34
○ 2026-08-01 05:45:52

○NSlady.ns.cloudflare.com2020-04-03 → 2020-04-03 · 3 obs

● 2020-04-03 20:35:18
○ 2026-05-21 17:27:34
○ 2026-08-01 05:45:52

●MXalt1.aspmx.l.google.com2020-04-03 → 2026-08-01 · 2 obs

● 2020-04-03 20:35:18
● 2026-08-01 05:45:52

●MXalt2.aspmx.l.google.com2020-04-03 → 2026-08-01 · 2 obs

● 2020-04-03 20:35:18
● 2026-08-01 05:45:52

●MXaspmx.l.google.com2020-04-03 → 2026-08-01 · 2 obs

● 2020-04-03 20:35:18
● 2026-08-01 05:45:52

●MXaspmx2.googlemail.com2020-04-03 → 2026-08-01 · 2 obs

● 2020-04-03 20:35:18
● 2026-08-01 05:45:52

●MXaspmx3.googlemail.com2020-04-03 → 2026-08-01 · 2 obs

● 2020-04-03 20:35:18
● 2026-08-01 05:45:52

●A104.26.10.392026-05-21 → 2026-08-01 · 3 obs

○ 2020-04-03 20:35:18
● 2026-05-21 17:27:34
● 2026-08-01 05:45:52

●A104.26.11.392026-05-21 → 2026-08-01 · 3 obs

○ 2020-04-03 20:35:18
● 2026-05-21 17:27:34
● 2026-08-01 05:45:52

○A104.27.158.2392020-04-03 → 2020-04-03 · 3 obs

● 2020-04-03 20:35:18
○ 2026-05-21 17:27:34
○ 2026-08-01 05:45:52

○A104.27.159.2392020-04-03 → 2020-04-03 · 3 obs

● 2020-04-03 20:35:18
○ 2026-05-21 17:27:34
○ 2026-08-01 05:45:52

●A172.67.70.992026-05-21 → 2026-08-01 · 3 obs

○ 2020-04-03 20:35:18
● 2026-05-21 17:27:34
● 2026-08-01 05:45:52

●A2606:4700:20::681a:a272026-05-21 → 2026-08-01 · 3 obs

○ 2020-04-03 20:35:18
● 2026-05-21 17:27:34
● 2026-08-01 05:45:52

●A2606:4700:20::681a:b272026-05-21 → 2026-08-01 · 3 obs

○ 2020-04-03 20:35:18
● 2026-05-21 17:27:34
● 2026-08-01 05:45:52

●A2606:4700:20::ac43:46632026-05-21 → 2026-08-01 · 3 obs

○ 2020-04-03 20:35:18
● 2026-05-21 17:27:34
● 2026-08-01 05:45:52

○A2606:4700:3032::681b:9eef2020-04-03 → 2020-04-03 · 3 obs

● 2020-04-03 20:35:18
○ 2026-05-21 17:27:34
○ 2026-08-01 05:45:52

○A2606:4700:3036::681b:9fef2020-04-03 → 2020-04-03 · 3 obs

● 2020-04-03 20:35:18
○ 2026-05-21 17:27:34
○ 2026-08-01 05:45:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
app	ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com...	-
checksheet.app	ian.ns.cloudflare.com, grace.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.118

NS records: ian.ns.cloudflare.com, grace.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for checksheet.app (unsigned zone)

⏱️ Timing

Total: 648ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`104.26.10.39, 104.26.11.39...`
AAAA	3	`2606:4700:20::681a:a27, 2606:4700:20::681a:b27...`
NS	2	`grace.ns.cloudflare.com, ian.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), aspmx2.googlemail.com (pri: 10)...`
TXT	2	`mailerlite-domain-verification=c0a84af86, v=spf1 include:_spf.mlsend.com include:_`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`grace.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

checksheet.app resolves to 6 IP numbers: 104.26.10.39, 104.26.11.39, 172.67.70.99 and 3 other.

Additional host names — googleview.com, techzine.com.br, watchanimesub.net and two others — share IP numbers with checksheet.app.

Name Servers

checksheet.app uses two name servers for its delegation: grace.ns.cloudflare.com and ian.ns.cloudflare.com.

checksheet.app shares its name server setup with other domains, including aiwize.com, wizeup.app, gameyoka.com and two others.

There is at least partial name server overlap between checksheet.app and other domains — alisa(0x706f726e).com, artcam2d.com, dhammastudy.org and two more among them.

The name servers lily.ns.cloudflare.com, algin.ns.cloudflare.com and meera.ns.cloudflare.com are often found in combination with these name servers.

Host names with 6 IP numbers:

Hostname grace.ns.cloudflare.com directs to 108.162.192.159, 172.64.32.159 and 173.245.58.159 along with 3 other IP addresses.

Hostname ian.ns.cloudflare.com directs to 108.162.193.118, 172.64.33.118 and 173.245.59.118 along with 3 other IP addresses.

Mail Servers

Five mail servers handle checksheet.app: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.

checksheet.app shares mail servers — at least in part — with other domains, including inanomo.com, odenwald-idyll.de, ns500742.ns500742.ns500688.ns500705.ns500678.ns500671.ns500678.ns500705.ns500291.ns500671.ns500671.ns500666.tenderladiesbz.com and two others.

These mail servers are frequently used alongside mail servers alt2.aspmx.l.google.com, alt1.aspmx.l.google.com, alt4.aspmx.l.google.com and 3 other.

Host names with two IP numbers:

aspmx2.googlemail.com directs traffic to 108.177.123.26 and 2800:3f0:4003:c0f::1b.

aspmx3.googlemail.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1b.

aspmx.l.google.com directs traffic to 172.253.63.26 and 2607:f8b0:4004:c09::1b.

alt1.aspmx.l.google.com directs traffic to 108.177.123.26 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1a.

Both aspmx2.googlemail.com and alt1.aspmx.l.google.com resolve to 2800:3f0:4003:c0f::1b IP addresses each.

Both aspmx2.googlemail.com and alt1.aspmx.l.google.com resolve to 108.177.123.26 IP addresses each.

Both aspmx3.googlemail.com and alt2.aspmx.l.google.com resolve to 172.253.116.27 IP addresses each.

checksheet.app - robtex.com

checksheet.app

app

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`checksheet.app`

`app`