bibstudy.com - robtex.com

bibstudy.com

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:5b2🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:85b0🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.5.178Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.133.176🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSemerson.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c60🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRemerson.ns.cloudflare.com
A2803:f800:50::6ca2:c360🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRemerson.ns.cloudflare.com
A2a06:98c1:50::ac40:2360🇺🇸 Cloudflare2a06:98c1:50::/45
PTRemerson.ns.cloudflare.com
A108.162.195.96🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRemerson.ns.cloudflare.com
A162.159.44.96Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRemerson.ns.cloudflare.com
A172.64.35.96🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRemerson.ns.cloudflare.com
NSjosephine.ns.cloudflare.com
A2606:4700:50::a29f:2640🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjosephine.ns.cloudflare.com
A2803:f800:50::6ca2:c240🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjosephine.ns.cloudflare.com
A2a06:98c1:50::ac40:2240🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjosephine.ns.cloudflare.com
A108.162.194.64🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjosephine.ns.cloudflare.com
A162.159.38.64Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjosephine.ns.cloudflare.com
A172.64.34.64🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjosephine.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.5.178, 172.67.133.176
IPv6 hints2606:4700:3033::6815:5b2, 2606:4700:3037::ac43:85b0
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=143, name=cloudflare-ech.com
SOAemerson.ns.cloudflare.comdns@cloudflare.com serial=2403373043

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=1778435896

Same first word

bibstudy.com

DNS History

9 records (6 active, 3 former)

201820192020202120222023202420252026NSemerson.ns.cloudflare.comjosephine.ns.cloudflare.comns29.domaincontrol.comns30.domaincontrol.comA104.21.5.178172.67.133.1762606:4700:3033::6815:5b22606:4700:3037::ac43:85b050.63.202.42
●NSemerson.ns.cloudflare.com2026-04-27 → 2026-05-10 · 3 obs
○ 2017-09-28 15:14:10
● 2026-04-27 14:13:58
● 2026-05-10 18:09:16
●NSjosephine.ns.cloudflare.com2026-04-27 → 2026-05-10 · 3 obs
○ 2017-09-28 15:14:10
● 2026-04-27 14:13:58
● 2026-05-10 18:09:16
○NSns29.domaincontrol.com2017-09-28 → 2017-09-28 · 3 obs
● 2017-09-28 15:14:10
○ 2026-04-27 14:13:58
○ 2026-05-10 18:09:16
○NSns30.domaincontrol.com2017-09-28 → 2017-09-28 · 3 obs
● 2017-09-28 15:14:10
○ 2026-04-27 14:13:58
○ 2026-05-10 18:09:16
●A104.21.5.1782026-04-27 → 2026-05-10 · 3 obs
○ 2017-09-28 15:14:10
● 2026-04-27 14:13:58
● 2026-05-10 18:09:16
●A172.67.133.1762026-04-27 → 2026-05-10 · 3 obs
○ 2017-09-28 15:14:10
● 2026-04-27 14:13:58
● 2026-05-10 18:09:16
●A2606:4700:3033::6815:5b22026-04-27 → 2026-05-10 · 3 obs
○ 2017-09-28 15:14:10
● 2026-04-27 14:13:58
● 2026-05-10 18:09:16
●A2606:4700:3037::ac43:85b02026-04-27 → 2026-05-10 · 3 obs
○ 2017-09-28 15:14:10
● 2026-04-27 14:13:58
● 2026-05-10 18:09:16
○A50.63.202.422017-09-28 → 2017-09-28 · 3 obs
● 2017-09-28 15:14:10
○ 2026-04-27 14:13:58
○ 2026-05-10 18:09:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
bibstudy.comjosephine.ns.cloudflare.com, emerson.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.96

NS records: josephine.ns.cloudflare.com, emerson.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bibstudy.com (unsigned zone)

⏱️ Timing

Total: 125ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.5.178, 172.67.133.176
AAAA22606:4700:3033::6815:5b2, 2606:4700:3037::ac43:85b0
NS2emerson.ns.cloudflare.com, josephine.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1emerson.ns.cloudflare.com dns.cloudflare

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

bibstudy.com maps to four IP numbers: 2606:4700:3033::6815:5b2, 2606:4700:3037::ac43:85b0, 104.21.5.178 and 172.67.133.176.

Other host names, for instance alebilet.pl-kategoria12746412648578712478.shop, zbsoft.net, apet.pl, www.agit.org.gt and gaming-servers.net share IP numbers with bibstudy.com.

Name Servers

Two name servers emerson.ns.cloudflare.com and josephine.ns.cloudflare.com handle delegation for bibstudy.com.

bibstudy.com uses the same name server setup as other domains, for example upv.com.mx, mysterylife.ru, ktmplastics.com, uzumavto.uz and itemd2r.com.

bibstudy.com partially shares name servers with other domains; examples include telwent.pl, rampantlionpub.com, syflkl.cn, fetchmail.org and maansp.nl.

These name servers are commonly used with ned.ns.cloudflare.com, dion.ns.cloudflare.com and nia.ns.cloudflare.com.

Host names with six IP numbers: emerson.ns.cloudflare.com points to: 2606:4700:58::a29f:2c60, 2803:f800:50::6ca2:c360, 2a06:98c1:50::ac40:2360, 108.162.195.96, 162.159.44.96 and 172.64.35.96; josephine.ns.cloudflare.com points to: 2606:4700:50::a29f:2640, 2803:f800:50::6ca2:c240, 2a06:98c1:50::ac40:2240, 108.162.194.64, 162.159.38.64 and 172.64.34.64.