`optiseat.app`

DNSSEC	⚠️ Not signed
A	18.245.253.26^{🇺🇸 Amazon18.245.252.0/22}
		PTR	`server-18-245-253-26.lhr5.r.cloudfront.net`
A	18.245.253.47^{🇺🇸 Amazon18.245.252.0/22}
A	18.245.253.64^{🇺🇸 Amazon18.245.252.0/22}
A	18.245.253.80^{🇺🇸 Amazon18.245.252.0/22}
NS	`ns-1301.awsdns-34.org` ⭐
		A	2600:9000:5305:1500::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1301.awsdns-34.org`
		A	205.251.197.21^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1301.awsdns-34.org`
NS	`ns-1741.awsdns-25.co.uk`
		A	2600:9000:5306:cd00::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1741.awsdns-25.co.uk`
		A	205.251.198.205^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1741.awsdns-25.co.uk`
NS	`ns-273.awsdns-34.com`
		A	2600:9000:5301:1100::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-273.awsdns-34.com`
		A	205.251.193.17^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-273.awsdns-34.com`
NS	`ns-722.awsdns-26.net`
		A	2600:9000:5302:d200::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-722.awsdns-26.net`
		A	205.251.194.210^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-722.awsdns-26.net`
MX	`mx1.improvmx.com` ⭐
		A	2a05:d012:412:e201:88aa:e7b9:7a43:12d7^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e202:f36:2c1f:1a49:d38a^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e203:373a:f51a:4a85:1d25^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	13.37.195.136^{🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix}
			PTR	`ec2-13-37-195-136.eu-west-3.compute.amazonaws.com`
		A	15.236.236.160^{🇫🇷 Amazon15.236.0.0/15 EC2 CDG prefix}
			PTR	`ec2-15-236-236-160.eu-west-3.compute.amazonaws.com`
		A	35.181.18.45^{🇫🇷 Amazon35.181.0.0/16 EC2 CDG prefix}
			PTR	`ec2-35-181-18-45.eu-west-3.compute.amazonaws.com`
MX	`mx2.improvmx.com`⁽²⁰⁾
		A	2a05:d012:412:e201:1f6e:f6e4:8fd7:4678^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e202:e81e:cc44:3b53:8a3d^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e203:7e33:3d9c:28d7:ee20^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	13.36.107.63^{🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix}
			PTR	`ec2-13-36-107-63.eu-west-3.compute.amazonaws.com`
		A	13.36.222.39^{🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix}
			PTR	`ec2-13-36-222-39.eu-west-3.compute.amazonaws.com`
		A	15.236.61.92^{🇫🇷 Amazon15.236.0.0/15 EC2 CDG prefix}
			PTR	`ec2-15-236-61-92.eu-west-3.compute.amazonaws.com`
TXT	`MS=ms87757022`
TXT	`google-site-verification=HAB5RkRnF0Otp92eolAjxBiB28Yyo4bpbW2_L8iZffA`
SOA	`ns-1301.awsdns-34.org`awsdns-hostmaster@amazon.com serial=1

`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)

Subdomains

lite.optiseat.app

Same first word

optiseat.app

Similar names

optieast.com

iteaspot.com

setopati.org

optieats.com

oapitest.com

spietato.it

patioset.net

topsitea.com

aotpsite.net

espattio.es

patioset.com

testopia.org

espattio.com

setopati.com

totespai.com

apetitos.com

DNS History

38 records (10 active, 28 former)

●NSns-1301.awsdns-34.org2026-03-26 → 2026-04-12 · 2 obs

● 2026-03-26 18:15:10
● 2026-04-12 03:25:26

●NSns-1741.awsdns-25.co.uk2026-03-26 → 2026-04-12 · 2 obs

● 2026-03-26 18:15:10
● 2026-04-12 03:25:26

●NSns-273.awsdns-34.com2026-03-26 → 2026-04-12 · 2 obs

● 2026-03-26 18:15:10
● 2026-04-12 03:25:26

●NSns-722.awsdns-26.net2026-03-26 → 2026-04-12 · 2 obs

● 2026-03-26 18:15:10
● 2026-04-12 03:25:26

●MXmx1.improvmx.com2026-03-26 → 2026-04-12 · 2 obs

● 2026-03-26 18:15:10
● 2026-04-12 03:25:26

●MXmx2.improvmx.com2026-03-26 → 2026-04-12 · 2 obs

● 2026-03-26 18:15:10
● 2026-04-12 03:25:26

○A108.156.22.1152026-03-26 → 2026-03-27 · 6 obs

● 2026-03-26 18:15:10
○ 2026-03-26 19:32:30
○ 2026-03-27 02:25:02
● 2026-03-27 06:35:22
○ 2026-03-27 08:46:54
○ 2026-04-12 03:25:26

○A108.156.22.412026-03-26 → 2026-03-27 · 6 obs

● 2026-03-26 18:15:10
○ 2026-03-26 19:32:30
○ 2026-03-27 02:25:02
● 2026-03-27 06:35:22
○ 2026-03-27 08:46:54
○ 2026-04-12 03:25:26

○A108.156.22.792026-03-26 → 2026-03-27 · 6 obs

● 2026-03-26 18:15:10
○ 2026-03-26 19:32:30
○ 2026-03-27 02:25:02
● 2026-03-27 06:35:22
○ 2026-03-27 08:46:54
○ 2026-04-12 03:25:26

○A108.156.22.902026-03-26 → 2026-03-27 · 6 obs

● 2026-03-26 18:15:10
○ 2026-03-26 19:32:30
○ 2026-03-27 02:25:02
● 2026-03-27 06:35:22
○ 2026-03-27 08:46:54
○ 2026-04-12 03:25:26

○A108.158.137.142026-03-29 → 2026-04-12 · 13 obs

○ 2026-03-29 17:29:22
● 2026-03-29 18:20:48
○ 2026-03-30 00:21:46
○ 2026-04-03 17:54:12
● 2026-04-03 20:39:22
○ 2026-04-04 03:34:58
○ 2026-04-11 01:13:00
● 2026-04-11 02:03:56
○ 2026-04-11 06:25:14
○ 2026-04-12 01:45:12
● 2026-04-12 02:21:10
○ 2026-04-12 03:08:32
○ 2026-04-12 03:25:26

○A108.158.137.682026-03-29 → 2026-04-12 · 13 obs

○A108.158.137.772026-03-29 → 2026-04-12 · 13 obs

○A108.158.137.962026-03-29 → 2026-04-12 · 13 obs

●A18.245.253.262026-03-26 → 2026-04-12 · 54 obs

○ 2026-03-26 18:15:10
● 2026-03-26 19:32:30
● 2026-03-27 02:25:02
○ 2026-03-27 06:35:22
● 2026-03-27 08:46:54
● 2026-03-28 01:39:20
○ 2026-03-28 07:50:02
● 2026-03-28 11:37:50
○ 2026-03-28 12:29:14
○ 2026-03-28 14:00:42
● 2026-03-28 14:53:38
● 2026-03-28 19:09:50
○ 2026-03-28 21:18:20
○ 2026-03-29 04:07:34
● 2026-03-29 17:29:22
○ 2026-03-29 18:20:48
● 2026-03-30 00:21:46
● 2026-03-30 06:15:14
○ 2026-03-30 12:25:30
● 2026-03-30 13:12:16
● 2026-03-31 10:01:48
○ 2026-03-31 14:17:00
○ 2026-03-31 16:12:28
● 2026-03-31 22:28:08
● 2026-04-03 07:32:22
○ 2026-04-03 11:43:16
● 2026-04-03 14:34:26
● 2026-04-03 17:54:12
○ 2026-04-03 20:39:22
● 2026-04-04 03:34:58
● 2026-04-04 06:41:24
○ 2026-04-04 15:05:20
○ 2026-04-04 15:36:30
● 2026-04-04 17:20:40
● 2026-04-06 03:13:54
○ 2026-04-06 09:03:54
○ 2026-04-06 11:19:50
● 2026-04-06 15:12:10
● 2026-04-07 10:57:32
○ 2026-04-07 11:45:42
● 2026-04-07 18:25:20
● 2026-04-08 02:48:28
○ 2026-04-08 11:37:30
● 2026-04-08 22:15:40
● 2026-04-10 15:55:12
○ 2026-04-11 01:13:00
○ 2026-04-11 02:03:56
● 2026-04-11 06:25:14
● 2026-04-11 19:18:48
○ 2026-04-12 01:11:32
● 2026-04-12 01:45:12
○ 2026-04-12 02:21:10
● 2026-04-12 03:08:32
● 2026-04-12 03:25:26

●A18.245.253.472026-03-26 → 2026-04-12 · 54 obs

●A18.245.253.642026-03-26 → 2026-04-12 · 54 obs

●A18.245.253.802026-03-26 → 2026-04-12 · 54 obs

○A18.64.236.1202026-03-31 → 2026-04-07 · 14 obs

○ 2026-03-31 10:01:48
● 2026-03-31 14:17:00
● 2026-03-31 16:12:28
○ 2026-03-31 22:28:08
○ 2026-04-03 07:32:22
● 2026-04-03 11:43:16
○ 2026-04-03 14:34:26
○ 2026-04-04 15:05:20
● 2026-04-04 15:36:30
○ 2026-04-04 17:20:40
○ 2026-04-07 10:57:32
● 2026-04-07 11:45:42
○ 2026-04-07 18:25:20
○ 2026-04-12 03:25:26

○A18.64.236.1262026-03-31 → 2026-04-07 · 14 obs

○A18.64.236.262026-03-31 → 2026-04-07 · 14 obs

○A18.64.236.402026-03-31 → 2026-04-07 · 14 obs

○A3.164.28.582026-03-28 → 2026-04-12 · 21 obs

○ 2026-03-28 11:37:50
● 2026-03-28 12:29:14
● 2026-03-28 14:00:42
○ 2026-03-28 14:53:38
○ 2026-03-28 19:09:50
● 2026-03-28 21:18:20
● 2026-03-29 04:07:34
○ 2026-03-29 17:29:22
○ 2026-03-30 06:15:14
● 2026-03-30 12:25:30
○ 2026-03-30 13:12:16
○ 2026-04-04 06:41:24
● 2026-04-04 15:05:20
○ 2026-04-04 15:36:30
○ 2026-04-06 09:03:54
● 2026-04-06 11:19:50
○ 2026-04-06 15:12:10
○ 2026-04-11 19:18:48
● 2026-04-12 01:11:32
○ 2026-04-12 01:45:12
○ 2026-04-12 03:25:26

○A3.164.28.622026-03-28 → 2026-04-12 · 21 obs

○A3.164.28.782026-03-28 → 2026-04-12 · 21 obs

○A3.164.28.802026-03-28 → 2026-04-12 · 21 obs

○A3.167.192.1212026-03-28 → 2026-03-28 · 4 obs

○ 2026-03-28 01:39:20
● 2026-03-28 07:50:02
○ 2026-03-28 11:37:50
○ 2026-04-12 03:25:26

○A3.167.192.1222026-03-28 → 2026-03-28 · 4 obs

○ 2026-03-28 01:39:20
● 2026-03-28 07:50:02
○ 2026-03-28 11:37:50
○ 2026-04-12 03:25:26

○A3.167.192.1262026-03-28 → 2026-03-28 · 4 obs

○ 2026-03-28 01:39:20
● 2026-03-28 07:50:02
○ 2026-03-28 11:37:50
○ 2026-04-12 03:25:26

○A3.167.192.162026-03-28 → 2026-03-28 · 4 obs

○ 2026-03-28 01:39:20
● 2026-03-28 07:50:02
○ 2026-03-28 11:37:50
○ 2026-04-12 03:25:26

○A3.175.14.632026-04-08 → 2026-04-11 · 7 obs

○ 2026-04-08 02:48:28
● 2026-04-08 11:37:30
○ 2026-04-08 22:15:40
○ 2026-04-10 15:55:12
● 2026-04-11 01:13:00
○ 2026-04-11 02:03:56
○ 2026-04-12 03:25:26

○A3.175.14.862026-04-08 → 2026-04-11 · 7 obs

○ 2026-04-08 02:48:28
● 2026-04-08 11:37:30
○ 2026-04-08 22:15:40
○ 2026-04-10 15:55:12
● 2026-04-11 01:13:00
○ 2026-04-11 02:03:56
○ 2026-04-12 03:25:26

○A3.175.14.912026-04-08 → 2026-04-11 · 7 obs

○ 2026-04-08 02:48:28
● 2026-04-08 11:37:30
○ 2026-04-08 22:15:40
○ 2026-04-10 15:55:12
● 2026-04-11 01:13:00
○ 2026-04-11 02:03:56
○ 2026-04-12 03:25:26

○A3.175.14.932026-04-08 → 2026-04-11 · 7 obs

○ 2026-04-08 02:48:28
● 2026-04-08 11:37:30
○ 2026-04-08 22:15:40
○ 2026-04-10 15:55:12
● 2026-04-11 01:13:00
○ 2026-04-11 02:03:56
○ 2026-04-12 03:25:26

○A52.222.177.1012026-04-06 → 2026-04-06 · 4 obs

○ 2026-04-06 03:13:54
● 2026-04-06 09:03:54
○ 2026-04-06 11:19:50
○ 2026-04-12 03:25:26

○A52.222.177.1192026-04-06 → 2026-04-06 · 4 obs

○ 2026-04-06 03:13:54
● 2026-04-06 09:03:54
○ 2026-04-06 11:19:50
○ 2026-04-12 03:25:26

○A52.222.177.432026-04-06 → 2026-04-06 · 4 obs

○ 2026-04-06 03:13:54
● 2026-04-06 09:03:54
○ 2026-04-06 11:19:50
○ 2026-04-12 03:25:26

○A52.222.177.582026-04-06 → 2026-04-06 · 4 obs

○ 2026-04-06 03:13:54
● 2026-04-06 09:03:54
○ 2026-04-06 11:19:50
○ 2026-04-12 03:25:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
app	ns-tld2.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
optiseat.app	ns-722.awsdns-26.net, ns-273.awsdns-34.com, ns-1301.awsdns-34.org, ns-1741.awsdns-25.co.uk	-

✅ Authoritative Response

Server:205.251.194.210

NS records: ns-722.awsdns-26.net, ns-273.awsdns-34.com, ns-1301.awsdns-34.org, ns-1741.awsdns-25.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for optiseat.app (unsigned zone)

⏱️ Timing

Total: 709ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.164.28.78, 3.164.28.62...`
NS	4	`ns-1301.awsdns-34.org, ns-1741.awsdns-25.co.uk...`
MX	2	`mx1.improvmx.com (pri: 10), mx2.improvmx.com (pri: 20)`
TXT	2	`MS=ms87757022, google-site-verification=HAB5RkRnF0Otp92`
SOA	1	`ns-1301.awsdns-34.org awsdns-hostmaster.`

Analysis

Hierarchy

The parent of lite.optiseat.app is optiseat.app.

IP Addresses

optiseat.app resolves to four IP numbers: 18.245.253.26, 18.245.253.47, 18.245.253.64 and 18.245.253.80.

Other host names such as www.grcb-cres.com, dragon-novels.jp, kodyabbott.com, dev.ezpayback.com and d3ppx02ywtlarq.cloudfront.net share IPs with optiseat.app.

Name Servers

optiseat.app is delegated to four name servers: ns-273.awsdns-34.com, ns-722.awsdns-26.net, ns-1301.awsdns-34.org and ns-1741.awsdns-25.co.uk.

optiseat.app at least partially shares name servers with other domains, for instance d32iwn6pzxid18.cloudfront.net, pcdnet.net, aws.liveparallel.com, d3ibpfctyob0j8.cloudfront.net and clearing.com.

These name servers are commonly used together with ns-1869.awsdns-41.co.uk, ns-428.awsdns-53.com and ns-1043.awsdns-02.org.

Host names with two IP numbers: ns-273.awsdns-34.com points to 2600:9000:5301:1100::1 and 205.251.193.17; ns-722.awsdns-26.net points to 2600:9000:5302:d200::1 and 205.251.194.210; ns-1301.awsdns-34.org points to 2600:9000:5305:1500::1 and 205.251.197.21; ns-1741.awsdns-25.co.uk points to 2600:9000:5306:cd00::1 and 205.251.198.205.

Mail Servers

optiseat.app is handled by two mail servers: mx1.improvmx.com and mx2.improvmx.com.

The mail server setup for optiseat.app matches that of other domains, for instance document-x.com, sandall.us, hotel-avrora.ru, performancemattersconsulting.com and mcpherson.me.uk.

optiseat.app shares at least partially some mail servers with other domains, including homereset.app, odd-waterside.de, cni.digital, klimatuppropetlund.se and tsm-mpi.com.

Host names with six IP numbers:

mx1.improvmx.com points to 2a05:d012:412:e201:88aa:e7b9:7a43:12d7, 2a05:d012:412:e202:f36:2c1f:1a49:d38a, 2a05:d012:412:e203:373a:f51a:4a85:1d25, 13.37.195.136, 15.236.236.160 and 35.181.18.45.

mx2.improvmx.com points to 2a05:d012:412:e201:1f6e:f6e4:8fd7:4678, 2a05:d012:412:e202:e81e:cc44:3b53:8a3d, 2a05:d012:412:e203:7e33:3d9c:28d7:ee20, 13.36.107.63, 13.36.222.39 and 15.236.61.92.

optiseat.app - robtex.com

optiseat.app

app

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`optiseat.app`

`app`