`pdfscholar.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:a14c^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::6815:f23^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.15.35^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.161.76^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`aragorn.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b43^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aragorn.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c143^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`aragorn.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2143^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`aragorn.ns.cloudflare.com`
		A	108.162.193.67^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aragorn.ns.cloudflare.com`
		A	172.64.33.67^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aragorn.ns.cloudflare.com`
		A	173.245.59.67^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aragorn.ns.cloudflare.com`
NS	`irma.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aa6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`irma.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0a6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`irma.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20a6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`irma.ns.cloudflare.com`
		A	108.162.192.166^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`irma.ns.cloudflare.com`
		A	172.64.32.166^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`irma.ns.cloudflare.com`
		A	173.245.58.166^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`irma.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.15.35, 172.67.161.76
		IPv6 hints	2606:4700:3030::ac43:a14c, 2606:4700:3032::6815:f23
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=166, name=cloudflare-ech.com
SOA	`aragorn.ns.cloudflare.com`dns@cloudflare.com serial=2403458236

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1778795356

Same first word

pdfscholar.com

Similar names

shalfordpc.org.uk

scholarpdf.com

DNS History

15 records (6 active, 9 former)

●NSaragorn.ns.cloudflare.com2026-03-03 → 2026-05-14 · 3 obs

○ 2016-03-10 06:43:40
● 2026-03-03 01:14:28
● 2026-05-14 22:04:10

●NSirma.ns.cloudflare.com2026-03-03 → 2026-05-14 · 3 obs

○ 2016-03-10 06:43:40
● 2026-03-03 01:14:28
● 2026-05-14 22:04:10

○NSns73.domaincontrol.com2015-08-08 → 2015-11-27 · 4 obs

● 2015-08-08 19:53:40
● 2015-11-27 08:20:56
○ 2016-03-10 06:43:40
○ 2026-05-14 22:04:10

○NSns74.domaincontrol.com2015-08-08 → 2015-11-27 · 4 obs

● 2015-08-08 19:53:40
● 2015-11-27 08:20:56
○ 2016-03-10 06:43:40
○ 2026-05-14 22:04:10

○MXmailstore1.secureserver.net2015-08-08 → 2015-11-27 · 4 obs

● 2015-08-08 19:53:40
● 2015-11-27 08:20:56
○ 2016-03-10 06:43:40
○ 2026-05-14 22:04:10

○MXsmtp.secureserver.net2015-08-08 → 2015-11-27 · 4 obs

● 2015-08-08 19:53:40
● 2015-11-27 08:20:56
○ 2016-03-10 06:43:40
○ 2026-05-14 22:04:10

●A104.21.15.352026-05-14 → 2026-05-14 · 3 obs

○ 2026-03-03 01:14:28
● 2026-05-14 22:04:08
● 2026-05-14 22:04:10

●A172.67.161.762026-05-14 → 2026-05-14 · 3 obs

○ 2026-03-03 01:14:28
● 2026-05-14 22:04:08
● 2026-05-14 22:04:10

○A184.168.221.622015-08-08 → 2015-11-27 · 4 obs

● 2015-08-08 19:53:40
● 2015-11-27 08:20:56
○ 2016-03-10 06:43:40
○ 2026-05-14 22:04:10

○A188.114.96.02026-03-03 → 2026-03-03 · 4 obs

○ 2016-03-10 06:43:40
● 2026-03-03 01:14:28
○ 2026-05-14 22:04:08
○ 2026-05-14 22:04:10

○A188.114.97.02026-03-03 → 2026-03-03 · 4 obs

○ 2016-03-10 06:43:40
● 2026-03-03 01:14:28
○ 2026-05-14 22:04:08
○ 2026-05-14 22:04:10

●A2606:4700:3030::ac43:a14c2026-05-14 → 2026-05-14 · 3 obs

○ 2026-03-03 01:14:28
● 2026-05-14 22:04:08
● 2026-05-14 22:04:10

●A2606:4700:3032::6815:f232026-05-14 → 2026-05-14 · 3 obs

○ 2026-03-03 01:14:28
● 2026-05-14 22:04:08
● 2026-05-14 22:04:10

○A2a06:98c1:3120::2026-03-03 → 2026-03-03 · 4 obs

○ 2016-03-10 06:43:40
● 2026-03-03 01:14:28
○ 2026-05-14 22:04:08
○ 2026-05-14 22:04:10

○A2a06:98c1:3121::2026-03-03 → 2026-03-03 · 4 obs

○ 2016-03-10 06:43:40
● 2026-03-03 01:14:28
○ 2026-05-14 22:04:08
○ 2026-05-14 22:04:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
pdfscholar.com	aragorn.ns.cloudflare.com, irma.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.67

NS records: aragorn.ns.cloudflare.com, irma.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pdfscholar.com (unsigned zone)

⏱️ Timing

Total: 125ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.15.35, 172.67.161.76`
AAAA	2	`2606:4700:3030::ac43:a14c, 2606:4700:3032::6815:f23`
NS	2	`aragorn.ns.cloudflare.com, irma.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`aragorn.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

pdfscholar.com refers to four IP numbers: 2606:4700:3030::ac43:a14c, 2606:4700:3032::6815:f23, 104.21.15.35 and 172.67.161.76.

Other host names, for instance melissashouse.org, ari-games.com, musicpowerschool.ru, icondev.io and weighinspace.digital share IP numbers with pdfscholar.com.

Name Servers

pdfscholar.com's delegation uses two name servers: aragorn.ns.cloudflare.com and irma.ns.cloudflare.com.

pdfscholar.com uses the same name server setup as other domains, such as passguidehub.com, havendecorworld.com, edupreppdf.com, (0x736578)ytutki.ru and knowmoreaboutdrugs.org.

pdfscholar.com at least partially shares name servers with other domains, including indibet.top, 7n4.cn, imsm.com, juegosjuegos.com.pa and 2ngb.ru.

These name servers are often used with bonnie.ns.cloudflare.com and fatima.ns.cloudflare.com.

Host names with six IP numbers:

aragorn.ns.cloudflare.com points to 2606:4700:58::adf5:3b43, 2803:f800:50::6ca2:c143, 2a06:98c1:50::ac40:2143, 108.162.193.67, 172.64.33.67 and 173.245.59.67.

irma.ns.cloudflare.com points to 2606:4700:50::adf5:3aa6, 2803:f800:50::6ca2:c0a6, 2a06:98c1:50::ac40:20a6, 108.162.192.166, 172.64.32.166 and 173.245.58.166.

pdfscholar.com - robtex.com

pdfscholar.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`pdfscholar.com`

`com`