cupdf.com - robtex.com

cupdf.com

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:476e🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:907c🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.71.110Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.144.124🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSathena.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a48🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRathena.ns.cloudflare.com
A2803:f800:50::6ca2:c048🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRathena.ns.cloudflare.com
A2a06:98c1:50::ac40:2048🇺🇸 Cloudflare2a06:98c1:50::/45
PTRathena.ns.cloudflare.com
A108.162.192.72🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRathena.ns.cloudflare.com
A172.64.32.72🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRathena.ns.cloudflare.com
A173.245.58.72🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRathena.ns.cloudflare.com
NSnick.ns.cloudflare.com
A2606:4700:58::adf5:3bd5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnick.ns.cloudflare.com
A2803:f800:50::6ca2:c1d5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnick.ns.cloudflare.com
A2a06:98c1:50::ac40:21d5🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnick.ns.cloudflare.com
A108.162.193.213🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnick.ns.cloudflare.com
A172.64.33.213🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnick.ns.cloudflare.com
A173.245.59.213🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnick.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.71.110, 172.67.144.124
IPv62606:4700:3034::6815:476e, 2606:4700:3034::ac43:907c
SOAathena.ns.cloudflare.comdns@cloudflare.com serial=2398786127

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
rank #351581 globally
rank #155998 in the tld
📈 Tranco rank: #146,233

Subdomains

mail.cupdf.com

Same first word

cupdf.com

Similar names

fcpud.com
fpdcu.com
pdfcu.org
pufdc.com
dpfcu.org
fpdcu.org
pdfcu.com
fdcup.com
dpfcu.com

DNS History

10 records (6 active, 4 former)

201820192020202120222023202420252026NSathena.ns.cloudflare.comnick.ns.cloudflare.comns77.domaincontrol.comns78.domaincontrol.comMXmail.cupdf.comA104.21.71.110172.67.144.1242606:4700:3034::6815:476e2606:4700:3034::ac43:907c166.62.28.109
●NSathena.ns.cloudflare.com2026-02-17 → 2026-03-22 · 3 obs
○ 2019-02-22 11:07:10
● 2026-02-17 16:36:36
● 2026-03-22 02:13:08
●NSnick.ns.cloudflare.com2026-02-17 → 2026-03-22 · 3 obs
○ 2019-02-22 11:07:10
● 2026-02-17 16:36:36
● 2026-03-22 02:13:08
○NSns77.domaincontrol.com2017-02-10 → 2017-02-10 · 3 obs
● 2017-02-10 02:13:00
○ 2019-02-22 11:07:10
○ 2026-03-22 02:13:08
○NSns78.domaincontrol.com2017-02-10 → 2017-02-10 · 3 obs
● 2017-02-10 02:13:00
○ 2019-02-22 11:07:10
○ 2026-03-22 02:13:08
○MXmail.cupdf.com2017-02-10 → 2017-02-10 · 3 obs
● 2017-02-10 02:13:00
○ 2019-02-22 11:07:10
○ 2026-03-22 02:13:08
●A104.21.71.1102026-02-17 → 2026-03-22 · 3 obs
○ 2019-02-22 11:07:10
● 2026-02-17 16:36:36
● 2026-03-22 02:13:08
○A166.62.28.1092017-02-10 → 2017-02-10 · 3 obs
● 2017-02-10 02:13:00
○ 2019-02-22 11:07:10
○ 2026-03-22 02:13:08
●A172.67.144.1242026-02-17 → 2026-03-22 · 3 obs
○ 2019-02-22 11:07:10
● 2026-02-17 16:36:36
● 2026-03-22 02:13:08
●A2606:4700:3034::6815:476e2026-02-17 → 2026-03-22 · 3 obs
○ 2019-02-22 11:07:10
● 2026-02-17 16:36:36
● 2026-03-22 02:13:08
●A2606:4700:3034::ac43:907c2026-02-17 → 2026-03-22 · 3 obs
○ 2019-02-22 11:07:10
● 2026-02-17 16:36:36
● 2026-03-22 02:13:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comg.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net...-
cupdf.comnick.ns.cloudflare.com, athena.ns.cloudflare.com12 records

✅ Authoritative Response

Server: 108.162.192.72

NS records: nick.ns.cloudflare.com, athena.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cupdf.com (unsigned zone)

⏱️ Timing

Total: 227ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.71.110, 172.67.144.124
AAAA22606:4700:3034::ac43:907c, 2606:4700:3034::6815:476e
NS2athena.ns.cloudflare.com, nick.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1athena.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The parent of mail.cupdf.com is cupdf.com.

IP Addresses

cupdf.com maps to four IP numbers: 2606:4700:3034::6815:476e, 2606:4700:3034::ac43:907c, 104.21.71.110 and 172.67.144.124.

other host names include verification.fb-page.workers.dev, shop4rates.com, postpic.net, domenuregistracija.lt and intractve.net; they share IP numbers with cupdf.com.

Name Servers

Two name servers athena.ns.cloudflare.com and nick.ns.cloudflare.com handle the delegation for cupdf.com.

cupdf.com shares the same name server setup as other domains, for instance redsoft.org, media-jane.com, cddata-mag.com, beianbeian.com and teorisoft.com.

cupdf.com at least partially shares name servers with other domains, for instance acrobatant.com, portsquay.co.uk, cobaltthrush.today, avolutionsoftware.uk and bing-guides.com.

These name servers are commonly used with rocco.ns.cloudflare.com and arya.ns.cloudflare.com.

Six IP addresses per host:

athena.ns.cloudflare.com points to 2606:4700:50::adf5:3a48, 2803:f800:50::6ca2:c048, 2a06:98c1:50::ac40:2048, 108.162.192.72, 172.64.32.72 and 173.245.58.72; nick.ns.cloudflare.com points to 2606:4700:58::adf5:3bd5, 2803:f800:50::6ca2:c1d5, 2a06:98c1:50::ac40:21d5, 108.162.193.213, 172.64.33.213 and 173.245.59.213