textbooknova.com - robtex.com

textbooknova.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:a8a9🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:5714🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.87.20Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.168.169🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSshubhi.ns.cloudflare.com ⭐
A2606:4700:50::a29f:263f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRshubhi.ns.cloudflare.com
A2803:f800:50::6ca2:c23f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRshubhi.ns.cloudflare.com
A2a06:98c1:50::ac40:223f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRshubhi.ns.cloudflare.com
A108.162.194.63🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRshubhi.ns.cloudflare.com
A162.159.38.63Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRshubhi.ns.cloudflare.com
A172.64.34.63🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRshubhi.ns.cloudflare.com
NStitan.ns.cloudflare.com
A2606:4700:58::a29f:2c5d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtitan.ns.cloudflare.com
A2803:f800:50::6ca2:c35d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtitan.ns.cloudflare.com
A2a06:98c1:50::ac40:235d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtitan.ns.cloudflare.com
A108.162.195.93🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtitan.ns.cloudflare.com
A162.159.44.93Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtitan.ns.cloudflare.com
A172.64.35.93🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtitan.ns.cloudflare.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c19::1b🇺🇸 Google2607:f8b0:4004::/48
PTRbk-in-f27.1e100.net
A172.253.62.27🇺🇸 Google172.253.62.0/24
PTRbc-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4003:c30::1b🇺🇸 Google2607:f8b0:4003::/48
PTRyutulis-in-f27.1e100.net
A74.125.27.26🇺🇸 Google74.125.27.0/24
PTRyutulis-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4001:c70::1a🇺🇸 Google2607:f8b0:4001::/48
PTRyucbful-in-f26.1e100.net
A192.178.209.26🇺🇸 Google192.178.209.0/24
PTRyucbful-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2607:f8b0:4024:c0d::1b🇺🇸 Google2607:f8b0::/32
PTRmj-in-f27.1e100.net
A192.178.152.26🇺🇸 Google192.178.152.0/24
PTRmj-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2607:f8b0:4023:403::1a🇺🇸 Google2607:f8b0::/32
PTRgg-in-f26.1e100.net
A142.250.96.27🇺🇸 Google142.250.96.0/24
PTRgg-in-f27.1e100.net
TXTgoogle-site-verification=nEtVl1FszhSyqVYu4VKGXC3VB33ntlCvqbI5IVDvYjg
TXTv=spf1 include:_spf.google.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.87.20, 172.67.168.169
IPv62606:4700:3032::ac43:a8a9, 2606:4700:3036::6815:5714
SOAshubhi.ns.cloudflare.comdns@cloudflare.com serial=2397271597

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

Previously MX for

textbooknova.com

Same first word

textbooknova.com
textbooknova.org

DNS History

15 records (11 active, 4 former)

2017201820192020202120222023202420252026NSshubhi.ns.cloudflare.comtitan.ns.cloudflare.comns3.ldhosting.comns4.ldhosting.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comtextbooknova.comA104.21.87.20172.67.168.1692606:4700:3032::ac43:a8a92606:4700:3036::6815:571491.109.26.129
○NSns3.ldhosting.com2016-11-19 → 2017-02-15 · 4 obs
● 2016-11-19 21:26:24
● 2017-02-15 10:40:40
○ 2026-03-19 09:54:40
○ 2026-03-23 23:43:30
○NSns4.ldhosting.com2016-11-19 → 2017-02-15 · 4 obs
● 2016-11-19 21:26:24
● 2017-02-15 10:40:40
○ 2026-03-19 09:54:40
○ 2026-03-23 23:43:30
●NSshubhi.ns.cloudflare.com2026-03-19 → 2026-03-23 · 3 obs
○ 2017-02-15 10:40:40
● 2026-03-19 09:54:40
● 2026-03-23 23:43:30
●NStitan.ns.cloudflare.com2026-03-19 → 2026-03-23 · 3 obs
○ 2017-02-15 10:40:40
● 2026-03-19 09:54:40
● 2026-03-23 23:43:30
●MXalt1.aspmx.l.google.com2026-03-19 → 2026-03-23 · 3 obs
○ 2017-02-15 10:40:40
● 2026-03-19 09:54:40
● 2026-03-23 23:43:30
●MXalt2.aspmx.l.google.com2026-03-19 → 2026-03-23 · 3 obs
○ 2017-02-15 10:40:40
● 2026-03-19 09:54:40
● 2026-03-23 23:43:30
●MXalt3.aspmx.l.google.com2026-03-19 → 2026-03-23 · 3 obs
○ 2017-02-15 10:40:40
● 2026-03-19 09:54:40
● 2026-03-23 23:43:30
●MXalt4.aspmx.l.google.com2026-03-19 → 2026-03-23 · 3 obs
○ 2017-02-15 10:40:40
● 2026-03-19 09:54:40
● 2026-03-23 23:43:30
●MXaspmx.l.google.com2026-03-19 → 2026-03-23 · 3 obs
○ 2017-02-15 10:40:40
● 2026-03-19 09:54:40
● 2026-03-23 23:43:30
○MXtextbooknova.com2016-11-19 → 2017-02-15 · 4 obs
● 2016-11-19 21:26:24
● 2017-02-15 10:40:40
○ 2026-03-19 09:54:40
○ 2026-03-23 23:43:30
●A104.21.87.202026-03-19 → 2026-03-23 · 3 obs
○ 2017-02-15 10:40:40
● 2026-03-19 09:54:40
● 2026-03-23 23:43:30
●A172.67.168.1692026-03-19 → 2026-03-23 · 3 obs
○ 2017-02-15 10:40:40
● 2026-03-19 09:54:40
● 2026-03-23 23:43:30
●A2606:4700:3032::ac43:a8a92026-03-19 → 2026-03-23 · 3 obs
○ 2017-02-15 10:40:40
● 2026-03-19 09:54:40
● 2026-03-23 23:43:30
●A2606:4700:3036::6815:57142026-03-19 → 2026-03-23 · 3 obs
○ 2017-02-15 10:40:40
● 2026-03-19 09:54:40
● 2026-03-23 23:43:30
○A91.109.26.1292016-11-19 → 2017-02-15 · 4 obs
● 2016-11-19 21:26:24
● 2017-02-15 10:40:40
○ 2026-03-19 09:54:40
○ 2026-03-23 23:43:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comb.gtld-servers.net, a.gtld-servers.net, g.gtld-servers.net, m.gtld-servers.net...-
textbooknova.comshubhi.ns.cloudflare.com, titan.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.93

NS records: shubhi.ns.cloudflare.com, titan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for textbooknova.com (unsigned zone)

⏱️ Timing

Total: 481ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.87.20, 172.67.168.169
AAAA22606:4700:3032::ac43:a8a9, 2606:4700:3036::6815:5714
NS2shubhi.ns.cloudflare.com, titan.ns.cloudflare.com
MX5aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT2google-site-verification=nEtVl1FszhSyqVY, v=spf1 include:_spf.google.com ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1shubhi.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

textbooknova.com maps to four IP numbers: 2606:4700:3032::ac43:a8a9, 2606:4700:3036::6815:5714, 104.21.87.20 and 172.67.168.169.

Other host names such as c9j0mb.com, clickmen.com, tnwf.org, coursesbycaroline.com and ayushdata.com share IPs with textbooknova.com.

Name Servers

Two name servers shubhi.ns.cloudflare.com and titan.ns.cloudflare.com handle the delegation for textbooknova.com.

The name server setup for textbooknova.com is the same as that used by other domains, for instance (0x706f726e)0video.com, hostnotion.co, tracelength.com and eamene.co.za.

textbooknova.com at least partially shares name servers with other domains, for example pag9m7rv.cc, itsalute.com, public-a-cloud1p.ascendmoney.io, saga.show and baliwebseo.com.

these name servers commonly pair with gerald.ns.cloudflare.com, hank.ns.cloudflare.com, newt.ns.cloudflare.com and stephane.ns.cloudflare.com.

Host names with six IP numbers:

shubhi.ns.cloudflare.com points to 2606:4700:50::a29f:263f, 2803:f800:50::6ca2:c23f, 2a06:98c1:50::ac40:223f, 108.162.194.63, 162.159.38.63 and 172.64.34.63.

titan.ns.cloudflare.com points to 2606:4700:58::a29f:2c5d, 2803:f800:50::6ca2:c35d, 2a06:98c1:50::ac40:235d, 108.162.195.93, 162.159.44.93 and 172.64.35.93.

Mail Servers

textbooknova.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

textbooknova.com shares at least partially some mail servers with other domains, for instance p-s-architects.com, sure.fi, ns500758.ns500698.ns500759.ns500759.ns500758.ns500736.ns500735.ns500708.ns500576.ns500619.ns500619.ns500698.ns500576.ns500619.ns500619.trackreceptor.com, ns500758.ns500759.ns500736.ns500736.ns500735.ns500698.ns500735.ns500708.ns500736.ns500576.ns500698.ns500576.ns500619.ns500698.trackreceptor.com and ns500754.ns500742.ns500754.ns500704.ns500705.ns500671.ns500688.ns500704.ns500688.ns500291.tenderladiesbz.com.

these mail servers are often used together with aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Host names with two IP numbers

Each host name points to two IP numbers:

aspmx.l.google.com points to 2607:f8b0:4004:c19::1b and 172.253.62.27

alt1.aspmx.l.google.com points to 2607:f8b0:4003:c30::1b and 74.125.27.26

alt2.aspmx.l.google.com points to 2607:f8b0:4001:c70::1a and 192.178.209.26

alt3.aspmx.l.google.com points to 2607:f8b0:4024:c0d::1b and 192.178.152.26

alt4.aspmx.l.google.com points to 2607:f8b0:4023:403::1a and 142.250.96.27