`chatpdf.onestartapi.com`

DNSSEC	⚠️ Not signed
A	18.165.83.6^{🇺🇸 Amazon18.165.80.0/21}
		PTR	`server-18-165-83-6.iad55.r.cloudfront.net`
A	18.165.83.52^{🇺🇸 Amazon18.165.80.0/21}
A	18.165.83.62^{🇺🇸 Amazon18.165.80.0/21}
A	18.165.83.121^{🇺🇸 Amazon18.165.80.0/21}

Same first word

chatpdf.com

chatpdf.guru

DNS History

28 records (4 active, 24 former)

●A18.165.83.1212026-02-21 → 2026-03-23 · 43 obs

○ 2026-02-21 14:32:40
● 2026-02-21 15:39:02
○ 2026-02-22 15:41:38
○ 2026-02-25 21:08:46
● 2026-02-27 00:53:26
● 2026-02-28 07:49:40
○ 2026-02-28 10:48:48
● 2026-02-28 15:47:08
● 2026-03-01 04:02:42
○ 2026-03-01 13:30:36
○ 2026-03-04 18:13:06
● 2026-03-04 23:18:26
○ 2026-03-05 06:53:44
● 2026-03-05 16:31:32
● 2026-03-05 17:05:18
○ 2026-03-05 18:38:18
○ 2026-03-06 14:22:30
● 2026-03-07 04:10:54
● 2026-03-07 05:47:58
○ 2026-03-07 17:57:34
○ 2026-03-08 12:06:36
● 2026-03-08 21:48:00
○ 2026-03-09 00:55:42
○ 2026-03-10 07:31:56
● 2026-03-10 20:48:38
● 2026-03-11 23:05:26
○ 2026-03-12 02:12:44
● 2026-03-12 21:51:34
○ 2026-03-13 12:06:00
○ 2026-03-16 23:19:54
● 2026-03-17 00:58:32
○ 2026-03-17 04:59:32
○ 2026-03-18 10:08:38
● 2026-03-18 19:05:30
● 2026-03-18 22:39:48
○ 2026-03-19 01:53:32
○ 2026-03-21 02:44:28
● 2026-03-21 07:09:06
○ 2026-03-21 11:53:04
● 2026-03-22 07:09:06
○ 2026-03-23 03:53:24
● 2026-03-23 06:50:14
● 2026-03-23 10:47:04

●A18.165.83.522026-02-21 → 2026-03-23 · 43 obs

●A18.165.83.62026-02-21 → 2026-03-23 · 43 obs

●A18.165.83.622026-02-21 → 2026-03-23 · 43 obs

○A18.173.219.142026-03-08 → 2026-03-08 · 7 obs

○ 2026-03-07 22:07:00
● 2026-03-08 00:20:56
○ 2026-03-08 05:55:08
○ 2026-03-08 09:11:56
● 2026-03-08 10:46:56
○ 2026-03-08 12:06:36
○ 2026-03-23 10:47:04

○A18.173.219.492026-03-08 → 2026-03-08 · 7 obs

○ 2026-03-07 22:07:00
● 2026-03-08 00:20:56
○ 2026-03-08 05:55:08
○ 2026-03-08 09:11:56
● 2026-03-08 10:46:56
○ 2026-03-08 12:06:36
○ 2026-03-23 10:47:04

○A18.173.219.902026-03-08 → 2026-03-08 · 7 obs

○ 2026-03-07 22:07:00
● 2026-03-08 00:20:56
○ 2026-03-08 05:55:08
○ 2026-03-08 09:11:56
● 2026-03-08 10:46:56
○ 2026-03-08 12:06:36
○ 2026-03-23 10:47:04

○A18.173.219.972026-03-08 → 2026-03-08 · 7 obs

○ 2026-03-07 22:07:00
● 2026-03-08 00:20:56
○ 2026-03-08 05:55:08
○ 2026-03-08 09:11:56
● 2026-03-08 10:46:56
○ 2026-03-08 12:06:36
○ 2026-03-23 10:47:04

○A18.239.236.292026-02-25 → 2026-03-21 · 59 obs

○ 2026-02-22 15:41:38
● 2026-02-25 08:30:54
● 2026-02-25 21:08:46
○ 2026-02-27 00:53:26
○ 2026-02-28 07:49:40
● 2026-02-28 10:48:48
○ 2026-02-28 15:47:08
○ 2026-03-01 04:02:42
● 2026-03-01 13:30:36
○ 2026-03-03 04:37:52
● 2026-03-03 12:54:30
● 2026-03-04 18:13:06
○ 2026-03-04 23:18:26
● 2026-03-05 06:53:44
○ 2026-03-05 16:31:32
○ 2026-03-05 17:05:18
● 2026-03-05 18:38:18
○ 2026-03-06 03:13:06
○ 2026-03-06 04:30:56
● 2026-03-06 09:14:06
○ 2026-03-06 14:22:30
○ 2026-03-08 05:55:08
● 2026-03-08 09:11:56
○ 2026-03-08 10:46:56
● 2026-03-08 12:06:36
○ 2026-03-08 21:48:00
● 2026-03-09 00:55:42
● 2026-03-10 07:31:56
○ 2026-03-10 20:48:38
○ 2026-03-11 23:05:26
● 2026-03-12 02:12:44
○ 2026-03-12 21:51:34
○ 2026-03-13 12:06:00
● 2026-03-14 02:17:26
● 2026-03-14 17:45:08
○ 2026-03-14 18:50:30
● 2026-03-14 20:14:32
● 2026-03-15 09:11:02
○ 2026-03-15 18:11:34
● 2026-03-15 21:38:12
● 2026-03-16 23:19:54
○ 2026-03-17 00:58:32
○ 2026-03-17 04:59:32
● 2026-03-17 05:50:04
● 2026-03-18 02:47:56
○ 2026-03-18 08:45:00
● 2026-03-18 10:08:38
○ 2026-03-18 19:05:30
○ 2026-03-18 22:39:48
● 2026-03-19 01:53:32
● 2026-03-20 03:31:18
○ 2026-03-20 07:04:12
○ 2026-03-20 08:39:16
● 2026-03-20 18:07:44
● 2026-03-21 02:44:28
○ 2026-03-21 07:09:06
● 2026-03-21 11:53:04
○ 2026-03-22 07:09:06
○ 2026-03-23 10:47:04

○A18.239.236.322026-02-25 → 2026-03-21 · 59 obs

○A18.239.236.492026-02-25 → 2026-03-21 · 59 obs

○A18.239.236.72026-02-25 → 2026-03-21 · 59 obs

○A216.137.39.1022026-02-21 → 2026-03-20 · 37 obs

● 2026-02-21 14:32:40
○ 2026-02-21 15:39:02
● 2026-02-22 15:41:38
○ 2026-02-25 08:30:54
○ 2026-03-01 13:30:36
● 2026-03-03 04:37:52
○ 2026-03-03 12:54:30
○ 2026-03-06 03:13:06
● 2026-03-06 04:30:56
○ 2026-03-06 09:14:06
● 2026-03-06 14:22:30
○ 2026-03-07 04:10:54
○ 2026-03-07 05:47:58
● 2026-03-07 17:57:34
● 2026-03-07 22:07:00
○ 2026-03-08 00:20:56
● 2026-03-08 05:55:08
○ 2026-03-08 09:11:56
○ 2026-03-12 21:51:34
● 2026-03-13 12:06:00
○ 2026-03-14 02:17:26
○ 2026-03-14 17:45:08
● 2026-03-14 18:50:30
○ 2026-03-14 20:14:32
○ 2026-03-15 09:11:02
● 2026-03-15 18:11:34
○ 2026-03-15 21:38:12
○ 2026-03-17 00:58:32
● 2026-03-17 04:59:32
○ 2026-03-17 05:50:04
○ 2026-03-18 02:47:56
● 2026-03-18 08:45:00
○ 2026-03-18 10:08:38
○ 2026-03-20 07:04:12
● 2026-03-20 08:39:16
○ 2026-03-20 18:07:44
○ 2026-03-23 10:47:04

○A216.137.39.162026-02-21 → 2026-03-20 · 37 obs

○A216.137.39.302026-02-21 → 2026-03-20 · 37 obs

○A216.137.39.872026-02-21 → 2026-03-20 · 37 obs

○A3.167.112.132026-03-20 → 2026-03-20 · 4 obs

○ 2026-03-20 03:31:18
● 2026-03-20 07:04:12
○ 2026-03-20 08:39:16
○ 2026-03-23 10:47:04

○A3.167.112.342026-03-20 → 2026-03-20 · 4 obs

○ 2026-03-20 03:31:18
● 2026-03-20 07:04:12
○ 2026-03-20 08:39:16
○ 2026-03-23 10:47:04

○A3.167.112.732026-03-20 → 2026-03-20 · 4 obs

○ 2026-03-20 03:31:18
● 2026-03-20 07:04:12
○ 2026-03-20 08:39:16
○ 2026-03-23 10:47:04

○A3.167.112.842026-03-20 → 2026-03-20 · 4 obs

○ 2026-03-20 03:31:18
● 2026-03-20 07:04:12
○ 2026-03-20 08:39:16
○ 2026-03-23 10:47:04

○A3.174.113.582026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-22 07:09:06
● 2026-03-23 03:53:24
○ 2026-03-23 06:50:14
○ 2026-03-23 10:47:04

○A3.174.113.772026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-22 07:09:06
● 2026-03-23 03:53:24
○ 2026-03-23 06:50:14
○ 2026-03-23 10:47:04

○A3.174.113.782026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-22 07:09:06
● 2026-03-23 03:53:24
○ 2026-03-23 06:50:14
○ 2026-03-23 10:47:04

○A3.174.113.952026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-22 07:09:06
● 2026-03-23 03:53:24
○ 2026-03-23 06:50:14
○ 2026-03-23 10:47:04

○A52.222.177.262026-03-06 → 2026-03-06 · 4 obs

○ 2026-03-05 18:38:18
● 2026-03-06 03:13:06
○ 2026-03-06 04:30:56
○ 2026-03-23 10:47:04

○A52.222.177.742026-03-06 → 2026-03-06 · 4 obs

○ 2026-03-05 18:38:18
● 2026-03-06 03:13:06
○ 2026-03-06 04:30:56
○ 2026-03-23 10:47:04

○A52.222.177.882026-03-06 → 2026-03-06 · 4 obs

○ 2026-03-05 18:38:18
● 2026-03-06 03:13:06
○ 2026-03-06 04:30:56
○ 2026-03-23 10:47:04

○A52.222.177.922026-03-06 → 2026-03-06 · 4 obs

○ 2026-03-05 18:38:18
● 2026-03-06 03:13:06
○ 2026-03-06 04:30:56
○ 2026-03-23 10:47:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, f.gtld-servers.net, h.gtld-servers.net, c.gtld-servers.net...	-
onestartapi.com	ns-121.awsdns-15.com, ns-832.awsdns-40.net, ns-1851.awsdns-39.co.uk, ns-1451.awsdns-53.org	1 record

✅ Authoritative Response

Server:205.251.197.171

NS records: ns-121.awsdns-15.com, ns-832.awsdns-40.net, ns-1851.awsdns-39.co.uk, ns-1451.awsdns-53.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for onestartapi.com (unsigned zone)

⏱️ Timing

Total: 381ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`18.165.83.52, 18.165.83.6...`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-121.awsdns-15.com)

Analysis

IP Addresses

chatpdf.onestartapi.com maps to four IP numbers: 18.165.83.6, 18.165.83.52, 18.165.83.62 and 18.165.83.121.

Other host names such as kestavametsa.se, d2jk02k76bcms0.cloudfront.net, d143tlxk57mwsb.cloudfront.net, silvertex.co.kr and d2j7w3w94izmv6.cloudfront.net share IPs with chatpdf.onestartapi.com.

	DNSSEC	⚠️ Not signed
	A	3.171.61.8^{🇺🇸 Amazon3.171.60.0/23}
	A	3.171.61.18^{🇺🇸 Amazon3.171.60.0/23}
	A	3.171.61.79^{🇺🇸 Amazon3.171.60.0/23}
	A	3.171.61.103^{🇺🇸 Amazon3.171.60.0/23}
	NS	`ns-1851.awsdns-39.co.uk` ⭐
	NS	`ns-121.awsdns-15.com`
	NS	`ns-1451.awsdns-53.org`
	NS	`ns-832.awsdns-40.net`
	SOA	`ns-1851.awsdns-39.co.uk`awsdns-hostmaster@amazon.com serial=1

chatpdf.onestartapi.com - robtex.com