bigbook.app - robtex.com

bigbook.app

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:a085🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:98e🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.9.142Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.160.133🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSlisa.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a83🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlisa.ns.cloudflare.com
A2803:f800:50::6ca2:c083🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlisa.ns.cloudflare.com
A2a06:98c1:50::ac40:2083🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlisa.ns.cloudflare.com
A108.162.192.131🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlisa.ns.cloudflare.com
A172.64.32.131🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlisa.ns.cloudflare.com
A173.245.58.131🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlisa.ns.cloudflare.com
NSvin.ns.cloudflare.com
A2606:4700:58::adf5:3bf5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvin.ns.cloudflare.com
A2803:f800:50::6ca2:c1f5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRvin.ns.cloudflare.com
A2a06:98c1:50::ac40:21f5🇺🇸 Cloudflare2a06:98c1:50::/45
PTRvin.ns.cloudflare.com
A108.162.193.245🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvin.ns.cloudflare.com
A172.64.33.245🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvin.ns.cloudflare.com
A173.245.59.245🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvin.ns.cloudflare.com
MXmxa.mailgun.org ⭐
A34.160.63.108🇺🇸 Google34.160.0.0/16
PTR108.63.160.34.bc.googleusercontent.com
MXmxb.mailgun.org ⭐
A34.160.13.42🇺🇸 Google34.160.0.0/16
PTR42.13.160.34.bc.googleusercontent.com
TXTv=spf1 include:mailgun.org ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.9.142, 172.67.160.133
IPv62606:4700:3032::ac43:a085, 2606:4700:3037::6815:98e
SOAlisa.ns.cloudflare.comdns@cloudflare.com serial=2395681642

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
🔒 HSTS Preload (+subdomains)

Same first word

bigbook.no
bigbook.app
bigbook.fun
bigbook.us
bigbook.vn
bigbook.com.au
bigbook.ag
bigbook.ca
bigbook.com
bigbook.be
bigbook.co
bigbook.me
bigbook.info
bigbook.org
bigbook.com.cn
bigbook.pl
bigbook.or.kr
bigbook.mobi
bigbook.am
bigbook.de
bigbook.eu
bigbook.net
bigbook.biz
bigbook.ru

Similar names

bookibg.de
bigkobo.com
gibbook.com
bookbig.ru
bookibg.com
bookibg.it
bookibg.fr
bookibg.nl
bookibg.es

DNS History

12 records (8 active, 4 former)

NSlisa.ns.cloudflare.comvin.ns.cloudflare.comMXmxa.mailgun.orgmxb.mailgun.orgA104.21.9.142172.67.160.1332606:4700:3032::ac43:a0852606:4700:3037::6815:98e188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●NSlisa.ns.cloudflare.com2026-02-26 → 2026-03-28 · 2 obs
● 2026-02-26 07:15:34
● 2026-03-28 07:55:20
●NSvin.ns.cloudflare.com2026-02-26 → 2026-03-28 · 2 obs
● 2026-02-26 07:15:34
● 2026-03-28 07:55:20
●MXmxa.mailgun.org2026-02-26 → 2026-03-28 · 2 obs
● 2026-02-26 07:15:34
● 2026-03-28 07:55:20
●MXmxb.mailgun.org2026-02-26 → 2026-03-28 · 2 obs
● 2026-02-26 07:15:34
● 2026-03-28 07:55:20
●A104.21.9.1422026-02-26 → 2026-03-28 · 5 obs
● 2026-02-26 07:15:34
● 2026-02-26 12:44:14
○ 2026-03-05 21:03:50
● 2026-03-28 07:55:18
● 2026-03-28 07:55:20
●A172.67.160.1332026-02-26 → 2026-03-28 · 5 obs
● 2026-02-26 07:15:34
● 2026-02-26 12:44:14
○ 2026-03-05 21:03:50
● 2026-03-28 07:55:18
● 2026-03-28 07:55:20
○A188.114.96.02026-03-05 → 2026-03-05 · 4 obs
○ 2026-02-26 12:44:14
● 2026-03-05 21:03:50
○ 2026-03-28 07:55:18
○ 2026-03-28 07:55:20
○A188.114.97.02026-03-05 → 2026-03-05 · 4 obs
○ 2026-02-26 12:44:14
● 2026-03-05 21:03:50
○ 2026-03-28 07:55:18
○ 2026-03-28 07:55:20
●A2606:4700:3032::ac43:a0852026-02-26 → 2026-03-28 · 5 obs
● 2026-02-26 07:15:34
● 2026-02-26 12:44:14
○ 2026-03-05 21:03:50
● 2026-03-28 07:55:18
● 2026-03-28 07:55:20
●A2606:4700:3037::6815:98e2026-02-26 → 2026-03-28 · 5 obs
● 2026-02-26 07:15:34
● 2026-02-26 12:44:14
○ 2026-03-05 21:03:50
● 2026-03-28 07:55:18
● 2026-03-28 07:55:20
○A2a06:98c1:3120::2026-03-05 → 2026-03-05 · 4 obs
○ 2026-02-26 12:44:14
● 2026-03-05 21:03:50
○ 2026-03-28 07:55:18
○ 2026-03-28 07:55:20
○A2a06:98c1:3121::2026-03-05 → 2026-03-05 · 4 obs
○ 2026-02-26 12:44:14
● 2026-03-05 21:03:50
○ 2026-03-28 07:55:18
○ 2026-03-28 07:55:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
appns-tld2.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com...-
bigbook.appvin.ns.cloudflare.com, lisa.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.59.245

NS records: vin.ns.cloudflare.com, lisa.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bigbook.app (unsigned zone)

⏱️ Timing

Total: 1397ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.160.133, 104.21.9.142
AAAA22606:4700:3037::6815:98e, 2606:4700:3032::ac43:a085
NS2lisa.ns.cloudflare.com, vin.ns.cloudflare.com
MX2mxa.mailgun.org (pri: 10), mxb.mailgun.org (pri: 10)
TXT1v=spf1 include:mailgun.org ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1lisa.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

Four IP numbers are pointed to by bigbook.app: 2606:4700:3032::ac43:a085, 2606:4700:3037::6815:98e, 104.21.9.142 and 172.67.160.133.

other host names including bbw(0x736578).dating, hackvely.net, goos.place, songler.cn and ulpvh.icu share IP numbers with bigbook.app.

Name Servers

bigbook.app is delegated to two name servers lisa.ns.cloudflare.com and vin.ns.cloudflare.com.

bigbook.app shares the same name server setup as other domains, for instance linkavaiyun.com, thecricketlounge.com, epicbytehub.com, b5i.net and go(0x787878)vids.com.

bigbook.app at least partially shares name servers with other domains, for instance milidonis.com, z6l7i01c12.online, akustic.com.hk, actapediatrica.org.mx and hsinjurylaw.com.

these name servers are commonly used alongside ken.ns.cloudflare.com.

Host names with six IP numbers:

Host name lisa.ns.cloudflare.com points to: 2606:4700:50::adf5:3a83, 2803:f800:50::6ca2:c083, 2a06:98c1:50::ac40:2083, 108.162.192.131, 172.64.32.131 and 173.245.58.131.

Host name vin.ns.cloudflare.com points to: 2606:4700:58::adf5:3bf5, 2803:f800:50::6ca2:c1f5, 2a06:98c1:50::ac40:21f5, 108.162.193.245, 172.64.33.245 and 173.245.59.245.

Mail Servers

Two mail servers handle bigbook.app: mxa.mailgun.org and mxb.mailgun.org.

bigbook.app shares the same mail server setup as other domains, for instance shirtsbysandra.com, winherb.com, dartwind.com, kenblack.co.uk and idirect.pro.

bigbook.app shares some mail servers with other domains, at least partially, for instance thetimethespace.com, kartonnie-korobki.spb.ru, sandbox.uk.eagleeye.com, lalignenyc.com and citar.tech.

these mail servers are often used alongside aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.

Host names with one IP number:

mxa.mailgun.org points to 34.160.63.108

mxb.mailgun.org points to 34.160.13.42