linuxperformancebook.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

linuxperformancebook.com

DNSSEC⚠️ Not signed
A2606:4700:3036::ac43:947c🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:27ce🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.39.206Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.148.124🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSelsa.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a6f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelsa.ns.cloudflare.com
A2803:f800:50::6ca2:c06f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRelsa.ns.cloudflare.com
A2a06:98c1:50::ac40:206f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRelsa.ns.cloudflare.com
A108.162.192.111🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelsa.ns.cloudflare.com
A172.64.32.111🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelsa.ns.cloudflare.com
A173.245.58.111🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelsa.ns.cloudflare.com
NSreese.ns.cloudflare.com
A2606:4700:58::a29f:2c75🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRreese.ns.cloudflare.com
A2803:f800:50::6ca2:c375🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRreese.ns.cloudflare.com
A2a06:98c1:50::ac40:2375🇺🇸 Cloudflare2a06:98c1:50::/45
PTRreese.ns.cloudflare.com
A108.162.195.117🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRreese.ns.cloudflare.com
A162.159.44.117Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRreese.ns.cloudflare.com
A172.64.35.117🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRreese.ns.cloudflare.com
MXroute3.mx.cloudflare.net ⭐
A2606:4700:f5::11🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A2606:4700:f5::12🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A2606:4700:f5::13🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.23Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.24Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.25Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
MXroute1.mx.cloudflare.net(31)
A2606:4700:f5::b🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A2606:4700:f5::c🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A2606:4700:f5::d🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.11Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.12Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.13Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
MXroute2.mx.cloudflare.net(80)
A2606:4700:f5::e🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A2606:4700:f5::f🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A2606:4700:f5::10🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.17Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.18Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.19Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
TXTv=spf1 include:_spf.mx.cloudflare.net ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.39.206, 172.67.148.124
IPv6 hints2606:4700:3036::ac43:947c, 2606:4700:3037::6815:27ce
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=211, name=cloudflare-ech.com
SOAelsa.ns.cloudflare.comdns@cloudflare.com serial=2418210538

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=1792918411

Same first word

linuxperformancebook.pages.dev
linuxperformancebook.com

Previous names

linuxpe.com
linuxpeak.com
linuxpeasant.com
linuxpedi.com
linuxpedia.com
linuxpeek.com
linuxpeeps.com
linuxpeer.com
linuxpen.com
linuxpenguincomputers.com
linuxpenguintux.com
linuxpentest.com
linuxpeople.com
linuxpeppermint.com
linuxpeptides.com
linuxperf.com
linuxperformance.com

Next names

linuxperhour.com
linuxperson.com
linuxpersonalcomputing.com
linuxpersonals.com
linuxpersonas.com
linuxpert.com
linuxpertise.com
linuxperts.com
linuxperu.com
linuxperuserver.com
linuxpf.com
linuxpg.com
linuxphd.com

DNS History

9 records (9 active, 0 former)

NSelsa.ns.cloudflare.comreese.ns.cloudflare.comMXroute1.mx.cloudflare.netroute2.mx.cloudflare.netroute3.mx.cloudflare.netA104.21.39.206172.67.148.1242606:4700:3036::ac43:947c2606:4700:3037::6815:27ce
●NSelsa.ns.cloudflare.com2026-08-31 → 2026-10-25 · 2 obs
● 2026-08-31 14:18:12
● 2026-10-25 09:23:14
●NSreese.ns.cloudflare.com2026-08-31 → 2026-10-25 · 2 obs
● 2026-08-31 14:18:12
● 2026-10-25 09:23:14
●MXroute1.mx.cloudflare.net2026-09-05 → 2026-10-25 · 2 obs
● 2026-09-05 13:07:52
● 2026-10-25 09:23:14
●MXroute2.mx.cloudflare.net2026-09-05 → 2026-10-25 · 2 obs
● 2026-09-05 13:07:52
● 2026-10-25 09:23:14
●MXroute3.mx.cloudflare.net2026-09-05 → 2026-10-25 · 2 obs
● 2026-09-05 13:07:52
● 2026-10-25 09:23:14
●A104.21.39.2062026-08-31 → 2026-10-25 · 2 obs
● 2026-08-31 14:18:12
● 2026-10-25 09:23:14
●A172.67.148.1242026-08-31 → 2026-10-25 · 2 obs
● 2026-08-31 14:18:12
● 2026-10-25 09:23:14
●A2606:4700:3036::ac43:947c2026-08-31 → 2026-10-25 · 2 obs
● 2026-08-31 14:18:12
● 2026-10-25 09:23:14
●A2606:4700:3037::6815:27ce2026-08-31 → 2026-10-25 · 2 obs
● 2026-08-31 14:18:12
● 2026-10-25 09:23:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
linuxperformancebook.comelsa.ns.cloudflare.com, reese.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.117

NS records: elsa.ns.cloudflare.com, reese.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linuxperformancebook.com (unsigned zone)

⏱️ Timing

Total: 448ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.148.124, 104.21.39.206
AAAA22606:4700:3036::ac43:947c, 2606:4700:3037::6815:27ce
NS2elsa.ns.cloudflare.com, reese.ns.cloudflare.com
MX3route3.mx.cloudflare.net (pri: 24), route1.mx.cloudflare.net (pri: 31)...
TXT1v=spf1 include:_spf.mx.cloudflare.net ~a
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1elsa.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

linuxperformancebook.com has four IP addresses: 104.21.39.206, 172.67.148.124, 2606:4700:3036::ac43:947c and 2606:4700:3037::6815:27ce.

Additional host names — eslstudytoday.shop, autorepairwashington.com, arrivale-checkinv11.com and two others — share IP numbers with linuxperformancebook.com.

Name Servers

linuxperformancebook.com is delegated to two name servers: elsa.ns.cloudflare.com and reese.ns.cloudflare.com.

linuxperformancebook.com shares its name server setup with other domains, including thomas-mcgill.workers.dev, ottavaarte.eu, muhmshop.com and two others.

linuxperformancebook.com shares at least some of its name servers with other domains, including in99.me, balboaparkerinc.com, spranic.ai and two others.

These name servers are frequently paired with the name servers perla.ns.cloudflare.com, violet.ns.cloudflare.com and fred.ns.cloudflare.com.

Host names with 6 IP numbers:

elsa.ns.cloudflare.com resolves to 108.162.192.111, 172.64.32.111, 173.245.58.111 and 3 other IP addresses.

reese.ns.cloudflare.com resolves to 108.162.195.117, 162.159.44.117, 172.64.35.117 and 3 other IP addresses.

Mail Servers

linuxperformancebook.com is handled by three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

linuxperformancebook.com shares mail servers — at least in part — with other domains, including devbox.ovh, russ.place, pantae.cc and two others.

Host names with 6 IP numbers:

route1.mx.cloudflare.net resolves to 162.159.205.11, 162.159.205.12, 162.159.205.13 and 3 other IP addresses.

route2.mx.cloudflare.net resolves to 162.159.205.17, 162.159.205.18, 162.159.205.19 and 3 other IP addresses.

route3.mx.cloudflare.net resolves to 162.159.205.23, 162.159.205.24, 162.159.205.25 and 3 other IP addresses.