pdfmaster.app - robtex.com

pdfmaster.app

DNSSEC⚠️ Not signed
A52.85.193.31🇺🇸 Amazon52.85.192.0/22 - CloudFront TD
PTRserver-52-85-193-31.iad55.r.cloudfront.net
A52.85.193.67🇺🇸 Amazon52.85.192.0/22 - CloudFront TD
A52.85.193.97🇺🇸 Amazon52.85.192.0/22 - CloudFront TD
A52.85.193.120🇺🇸 Amazon52.85.192.0/22 - CloudFront TD
NSns-191.awsdns-23.com ⭐
A2600:9000:5300:bf00::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront
PTRns-191.awsdns-23.com
A205.251.192.191🇺🇸 Amazon205.251.192.0/24 prefix
PTRns-191.awsdns-23.com
NSns-1151.awsdns-15.org
A2600:9000:5304:7f00::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront
PTRns-1151.awsdns-15.org
A205.251.196.127🇺🇸 Amazon205.251.196.0/24 prefix
PTRns-1151.awsdns-15.org
NSns-1980.awsdns-55.co.uk
A2600:9000:5307:bc00::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront
PTRns-1980.awsdns-55.co.uk
A205.251.199.188🇺🇸 Amazon205.251.199.0/24 prefix
PTRns-1980.awsdns-55.co.uk
NSns-683.awsdns-21.net
A2600:9000:5302:ab00::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront
PTRns-683.awsdns-21.net
A205.251.194.171🇺🇸 Amazon205.251.194.0/24 prefix
PTRns-683.awsdns-21.net
MXinbound-smtp.us-east-1.amazonaws.com ⭐
A3.211.210.226🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix
PTRec2-3-211-210-226.compute-1.amazonaws.com
A44.206.9.87🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix
PTRec2-44-206-9-87.compute-1.amazonaws.com
A44.210.166.32🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix
PTRec2-44-210-166-32.compute-1.amazonaws.com
A54.164.173.191🇺🇸 Amazon54.164.0.0/15 EC2 IAD prefix
PTRec2-54-164-173-191.compute-1.amazonaws.com
A54.197.5.236🇺🇸 Amazon54.196.0.0/15 EC2 IAD 54.196.0.0/15
PTRec2-54-197-5-236.compute-1.amazonaws.com
TXTesputnik-verification=RVNQX0RWS19WMQABfKUAAAGI-QzZw6mokJPVE2Kb
TXTgoogle-gws-recovery-domain-verification=67671209
TXTgoogle-site-verification=IEdNsNjb_s-AirV8qoy_otcbiGaTyi2rGj_24F6NiHo
TXTgoogle-site-verification=K2Aq4OCi_6qa81xXrQUScHgs7x5ppqBsLnDabpBcH8U
TXTgoogle-site-verification=oB93ArqEF2iejNmk9vvA7SYQxvWgv9U6IbKFysPUoDw
TXTgoogle-site-verification=utKl_si9rXRPSmE7UDeSrteCHGeabTmTJ_LjuYc58fI
TXTgoogle-site-verification=y4cs_2lllKMCY2hUmN6n3FqcXdjNawA9HtMHHrX1UcY
TXTv=spf1 include:mail.zendesk.com include:amazonses.com include:spf2.esputnik.c...
SOAns-191.awsdns-23.comawsdns-hostmaster@amazon.com serial=1

app

DNSSEC🔒 Signed (DS record present)
NSns-tld1.charlestonroadregistry.com ⭐
NSns-tld2.charlestonroadregistry.com
NSns-tld3.charlestonroadregistry.com
NSns-tld4.charlestonroadregistry.com
NSns-tld5.charlestonroadregistry.com
SOAns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=101427
⚠️ On DNS blocklist: tif
🔒 HSTS Preload (+subdomains)

Same first word

pdfmaster.pro
pdfmaster.ru
pdfmaster.app
pdfmaster.net

Similar names

masterpdf.org
fdpmaster.ru
dstampfer.de
esmartpdf.com

DNS History

33 records (9 active, 24 former)

NSns-1151.awsdns-15.orgns-191.awsdns-23.comns-1980.awsdns-55.co.ukns-683.awsdns-21.netMXinbound-smtp.us-east-1.amazonaws.comA52.85.193.12052.85.193.3152.85.193.6752.85.193.97108.156.46.100108.156.46.112108.156.46.79108.156.46.8913.33.235.10513.33.235.3813.33.235.7013.33.235.8818.165.9.4118.165.9.5318.165.9.5718.165.9.793.166.65.1013.166.65.113.166.65.293.166.65.3452.85.31.252.85.31.5252.85.31.5452.85.31.7299.84.41.10299.84.41.10499.84.41.5299.84.41.7
●NSns-1151.awsdns-15.org2026-02-16 → 2026-03-23 · 2 obs
● 2026-02-16 10:14:38
● 2026-03-23 10:35:00
●NSns-191.awsdns-23.com2026-02-16 → 2026-03-23 · 2 obs
● 2026-02-16 10:14:38
● 2026-03-23 10:35:00
●NSns-1980.awsdns-55.co.uk2026-02-16 → 2026-03-23 · 2 obs
● 2026-02-16 10:14:38
● 2026-03-23 10:35:00
●NSns-683.awsdns-21.net2026-02-16 → 2026-03-23 · 2 obs
● 2026-02-16 10:14:38
● 2026-03-23 10:35:00
●MXinbound-smtp.us-east-1.amazonaws.com2026-02-16 → 2026-03-23 · 2 obs
● 2026-02-16 10:14:38
● 2026-03-23 10:35:00
○A108.156.46.1002026-02-16 → 2026-03-17 · 14 obs
○ 2026-02-16 10:14:38
● 2026-02-16 14:09:44
● 2026-02-20 01:03:12
○ 2026-02-20 19:31:50
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● 2026-03-17 04:37:08
○ 2026-03-18 18:20:58
○ 2026-03-23 10:35:00
○A108.156.46.1122026-02-16 → 2026-03-17 · 14 obs
○ 2026-02-16 10:14:38
● 2026-02-16 14:09:44
● 2026-02-20 01:03:12
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● 2026-03-17 04:37:08
○ 2026-03-18 18:20:58
○ 2026-03-23 10:35:00
○A108.156.46.792026-02-16 → 2026-03-17 · 14 obs
○ 2026-02-16 10:14:38
● 2026-02-16 14:09:44
● 2026-02-20 01:03:12
○ 2026-02-20 19:31:50
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● 2026-03-17 04:37:08
○ 2026-03-18 18:20:58
○ 2026-03-23 10:35:00
○A108.156.46.892026-02-16 → 2026-03-17 · 14 obs
○ 2026-02-16 10:14:38
● 2026-02-16 14:09:44
● 2026-02-20 01:03:12
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● 2026-02-27 16:08:12
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● 2026-03-17 04:37:08
○ 2026-03-18 18:20:58
○ 2026-03-23 10:35:00
○A13.33.235.1052026-03-22 → 2026-03-23 · 5 obs
○ 2026-03-22 17:35:38
● 2026-03-22 20:46:44
● 2026-03-23 04:48:38
○ 2026-03-23 10:34:58
○ 2026-03-23 10:35:00
○A13.33.235.382026-03-22 → 2026-03-23 · 5 obs
○ 2026-03-22 17:35:38
● 2026-03-22 20:46:44
● 2026-03-23 04:48:38
○ 2026-03-23 10:34:58
○ 2026-03-23 10:35:00
○A13.33.235.702026-03-22 → 2026-03-23 · 5 obs
○ 2026-03-22 17:35:38
● 2026-03-22 20:46:44
● 2026-03-23 04:48:38
○ 2026-03-23 10:34:58
○ 2026-03-23 10:35:00
○A13.33.235.882026-03-22 → 2026-03-23 · 5 obs
○ 2026-03-22 17:35:38
● 2026-03-22 20:46:44
● 2026-03-23 04:48:38
○ 2026-03-23 10:34:58
○ 2026-03-23 10:35:00
○A18.165.9.412026-03-21 → 2026-03-21 · 4 obs
○ 2026-03-20 23:34:08
● 2026-03-21 09:29:20
○ 2026-03-22 17:35:38
○ 2026-03-23 10:35:00
○A18.165.9.532026-03-21 → 2026-03-21 · 4 obs
○ 2026-03-20 23:34:08
● 2026-03-21 09:29:20
○ 2026-03-22 17:35:38
○ 2026-03-23 10:35:00
○A18.165.9.572026-03-21 → 2026-03-21 · 4 obs
○ 2026-03-20 23:34:08
● 2026-03-21 09:29:20
○ 2026-03-22 17:35:38
○ 2026-03-23 10:35:00
○A18.165.9.792026-03-21 → 2026-03-21 · 4 obs
○ 2026-03-20 23:34:08
● 2026-03-21 09:29:20
○ 2026-03-22 17:35:38
○ 2026-03-23 10:35:00
○A3.166.65.1012026-03-08 → 2026-03-20 · 21 obs
○ 2026-03-07 23:31:50
● 2026-03-08 13:21:38
● 2026-03-10 05:08:36
○ 2026-03-10 20:54:26
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● 2026-03-13 10:45:22
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● 2026-03-16 05:41:42
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● 2026-03-20 23:34:08
○ 2026-03-21 09:29:20
○ 2026-03-23 10:35:00
○A3.166.65.112026-03-08 → 2026-03-20 · 21 obs
○ 2026-03-07 23:31:50
● 2026-03-08 13:21:38
● 2026-03-10 05:08:36
○ 2026-03-10 20:54:26
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● 2026-03-20 23:34:08
○ 2026-03-21 09:29:20
○ 2026-03-23 10:35:00
○A3.166.65.292026-03-08 → 2026-03-20 · 21 obs
○ 2026-03-07 23:31:50
● 2026-03-08 13:21:38
● 2026-03-10 05:08:36
○ 2026-03-10 20:54:26
○ 2026-03-11 02:50:26
● 2026-03-12 07:04:14
● 2026-03-13 10:45:22
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● 2026-03-14 20:20:56
● 2026-03-15 02:21:14
○ 2026-03-15 11:29:02
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● 2026-03-20 23:34:08
○ 2026-03-21 09:29:20
○ 2026-03-23 10:35:00
○A3.166.65.342026-03-08 → 2026-03-20 · 21 obs
○ 2026-03-07 23:31:50
● 2026-03-08 13:21:38
● 2026-03-10 05:08:36
○ 2026-03-10 20:54:26
○ 2026-03-11 02:50:26
● 2026-03-12 07:04:14
● 2026-03-13 10:45:22
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● 2026-03-20 23:34:08
○ 2026-03-21 09:29:20
○ 2026-03-23 10:35:00
●A52.85.193.1202026-02-21 → 2026-03-23 · 39 obs
○ 2026-02-16 10:14:38
○ 2026-02-21 10:56:38
● 2026-02-21 13:32:32
● 2026-02-22 18:12:34
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● 2026-03-23 10:34:58
● 2026-03-23 10:35:00
●A52.85.193.312026-02-21 → 2026-03-23 · 39 obs
○ 2026-02-16 10:14:38
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● 2026-02-21 13:32:32
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● 2026-03-23 10:34:58
● 2026-03-23 10:35:00
●A52.85.193.672026-02-21 → 2026-03-23 · 39 obs
○ 2026-02-16 10:14:38
○ 2026-02-21 10:56:38
● 2026-02-21 13:32:32
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○ 2026-02-23 08:16:46
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●A52.85.193.972026-02-21 → 2026-03-23 · 39 obs
○ 2026-02-16 10:14:38
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● 2026-02-21 13:32:32
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○A52.85.31.22026-03-22 → 2026-03-22 · 4 obs
○ 2026-03-21 09:29:20
● 2026-03-22 17:35:38
○ 2026-03-22 20:46:44
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○A52.85.31.522026-03-22 → 2026-03-22 · 4 obs
○ 2026-03-21 09:29:20
● 2026-03-22 17:35:38
○ 2026-03-22 20:46:44
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○A52.85.31.542026-03-22 → 2026-03-22 · 4 obs
○ 2026-03-21 09:29:20
● 2026-03-22 17:35:38
○ 2026-03-22 20:46:44
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○A52.85.31.722026-03-22 → 2026-03-22 · 4 obs
○ 2026-03-21 09:29:20
● 2026-03-22 17:35:38
○ 2026-03-22 20:46:44
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○A99.84.41.1022026-02-16 → 2026-03-15 · 35 obs
● 2026-02-16 10:14:38
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○A99.84.41.1042026-02-16 → 2026-03-15 · 35 obs
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○A99.84.41.522026-02-16 → 2026-03-15 · 35 obs
● 2026-02-16 10:14:38
○ 2026-02-16 14:09:44
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○ 2026-03-15 21:27:28
○ 2026-03-23 10:35:00
○A99.84.41.72026-02-16 → 2026-03-15 · 35 obs
● 2026-02-16 10:14:38
○ 2026-02-16 14:09:44
○ 2026-02-20 01:03:12
● 2026-02-20 19:31:50
● 2026-02-21 10:56:38
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○ 2026-02-27 16:08:12
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● 2026-03-01 19:15:40
● 2026-03-01 23:46:04
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● 2026-03-03 01:17:32
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● 2026-03-07 06:27:24
● 2026-03-07 23:31:50
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🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
appns-tld4.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com...-
pdfmaster.appns-1980.awsdns-55.co.uk, ns-191.awsdns-23.com, ns-683.awsdns-21.net, ns-1151.awsdns-15.org-

✅ Authoritative Response

Server:205.251.199.188

NS records: ns-1980.awsdns-55.co.uk, ns-191.awsdns-23.com, ns-683.awsdns-21.net, ns-1151.awsdns-15.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pdfmaster.app (unsigned zone)

⏱️ Timing

Total: 2129ms | Queries: -

📄 Records

TypeCountSample Data
A452.85.193.31, 52.85.193.97...
NS4ns-1151.awsdns-15.org, ns-191.awsdns-23.com...
MX1inbound-smtp.us-east-1.amazonaws.com (pr
TXT8esputnik-verification=RVNQX0RWS19WMQABfK, google-gws-recovery-domain-verification=...
SOA1ns-191.awsdns-23.com awsdns-hostmaster.a

Analysis

IP Addresses

pdfmaster.app maps to four IP numbers: 52.85.193.31, 52.85.193.67, 52.85.193.97 and 52.85.193.120.

Name Servers

pdfmaster.app is delegated to four name servers: ns-191.awsdns-23.com, ns-683.awsdns-21.net, ns-1151.awsdns-15.org and ns-1980.awsdns-55.co.uk.

pdfmaster.app at least partially shares name servers with other domains such as mysteryshophub.net, ditportal.co.za, australiaonlinevisas.com, scholaradvisor.com and www.gotcha.com.br.

Host names with two IP numbers:

ns-191.awsdns-23.com points to 2600:9000:5300:bf00::1 and 205.251.192.191

ns-683.awsdns-21.net points to 2600:9000:5302:ab00::1 and 205.251.194.171

ns-1151.awsdns-15.org points to 2600:9000:5304:7f00::1 and 205.251.196.127

ns-1980.awsdns-55.co.uk points to 2600:9000:5307:bc00::1 and 205.251.199.188

Mail Servers

pdfmaster.app is handled by a single mail server, inbound-smtp.us-east-1.amazonaws.com.

pdfmaster.app shares the same mail server setup as other domains, including dev.decisionspace365.io, robhaack.com, eleventvqff.slack.com, ru-yota-b2b.slack.com and jbccganbaru.slack.com.

pdfmaster.app shares mail servers with other domains at least in part, for instance craftwarebiz.atlassian.net, lifespanfitness.com, tdstreamone.eu, hennessy.atlassian.net and ntuclink.atlassian.net.

These mail servers are commonly used alongside inbound-smtp.us-west-2.amazonaws.com, 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.

The host name inbound-smtp.us-east-1.amazonaws.com points to five IP numbers: 3.211.210.226, 44.206.9.87, 44.210.166.32, 54.164.173.191 and 54.197.5.236.