startupbook.io - robtex.com

startupbook.io

DNSSEC⚠️ Not signed
NSsierra.ns.cloudflare.com ⭐
A2606:4700:50::a29f:26f5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsierra.ns.cloudflare.com
A2803:f800:50::6ca2:c2f5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsierra.ns.cloudflare.com
A2a06:98c1:50::ac40:22f5🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsierra.ns.cloudflare.com
A108.162.194.245🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsierra.ns.cloudflare.com
A162.159.38.245Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsierra.ns.cloudflare.com
A172.64.34.245🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsierra.ns.cloudflare.com
NStom.ns.cloudflare.com
A2606:4700:58::adf5:3b93🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtom.ns.cloudflare.com
A2803:f800:50::6ca2:c193🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtom.ns.cloudflare.com
A2a06:98c1:50::ac40:2193🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtom.ns.cloudflare.com
A108.162.193.147🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtom.ns.cloudflare.com
A172.64.33.147🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtom.ns.cloudflare.com
A173.245.59.147🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtom.ns.cloudflare.com
SOAsierra.ns.cloudflare.comdns@cloudflare.com serial=2403519506

io

DNSSEC🔒 Signed (DS record present)
NSa0.nic.io ⭐
NSa2.nic.io
NSb0.nic.io
NSc0.nic.io
SOAa0.nic.iohostmaster@donuts.email serial=1778311675

Same first word

startupbook.io

DNS History

13 records (2 active, 11 former)

20192020202120222023202420252026NSsierra.ns.cloudflare.comtom.ns.cloudflare.comns-242-a.gandi.netns-249-c.gandi.netns-29-b.gandi.netns1.gandi.netMXfb.mail.gandi.netspool.mail.gandi.netA104.21.51.113139.59.209.222172.67.179.1302606:4700:3030::ac43:b3822606:4700:3031::6815:3371
○NSns-242-a.gandi.net2018-08-06 → 2018-08-06 · 3 obs
● 2018-08-06 03:33:38
○ 2026-05-05 17:04:32
○ 2026-05-09 07:43:50
○NSns-249-c.gandi.net2018-08-06 → 2018-08-06 · 3 obs
● 2018-08-06 03:33:38
○ 2026-05-05 17:04:32
○ 2026-05-09 07:43:50
○NSns-29-b.gandi.net2018-08-06 → 2018-08-06 · 3 obs
● 2018-08-06 03:33:38
○ 2026-05-05 17:04:32
○ 2026-05-09 07:43:50
○NSns1.gandi.net2018-08-06 → 2018-08-06 · 3 obs
● 2018-08-06 03:33:38
○ 2026-05-05 17:04:32
○ 2026-05-09 07:43:50
●NSsierra.ns.cloudflare.com2026-05-05 → 2026-05-09 · 3 obs
○ 2018-08-06 03:33:38
● 2026-05-05 17:04:32
● 2026-05-09 07:43:50
●NStom.ns.cloudflare.com2026-05-05 → 2026-05-09 · 3 obs
○ 2018-08-06 03:33:38
● 2026-05-05 17:04:32
● 2026-05-09 07:43:50
○MXfb.mail.gandi.net2018-08-06 → 2018-08-06 · 3 obs
● 2018-08-06 03:33:38
○ 2026-05-05 17:04:32
○ 2026-05-09 07:43:50
○MXspool.mail.gandi.net2018-08-06 → 2018-08-06 · 3 obs
● 2018-08-06 03:33:38
○ 2026-05-05 17:04:32
○ 2026-05-09 07:43:50
○A104.21.51.1132026-05-05 → 2026-05-05 · 3 obs
○ 2018-08-06 03:33:38
● 2026-05-05 17:04:32
○ 2026-05-09 07:43:50
○A139.59.209.2222018-08-06 → 2018-08-06 · 3 obs
● 2018-08-06 03:33:38
○ 2026-05-05 17:04:32
○ 2026-05-09 07:43:50
○A172.67.179.1302026-05-05 → 2026-05-05 · 3 obs
○ 2018-08-06 03:33:38
● 2026-05-05 17:04:32
○ 2026-05-09 07:43:50
○A2606:4700:3030::ac43:b3822026-05-05 → 2026-05-05 · 3 obs
○ 2018-08-06 03:33:38
● 2026-05-05 17:04:32
○ 2026-05-09 07:43:50
○A2606:4700:3031::6815:33712026-05-05 → 2026-05-05 · 3 obs
○ 2018-08-06 03:33:38
● 2026-05-05 17:04:32
○ 2026-05-09 07:43:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
iob0.nic.io, c0.nic.io, a0.nic.io, a2.nic.io-
startupbook.iotom.ns.cloudflare.com, sierra.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.147

NS records: tom.ns.cloudflare.com, sierra.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for startupbook.io (unsigned zone)

⏱️ Timing

Total: 668ms | Queries: -

📄 Records

TypeCountSample Data
NS2sierra.ns.cloudflare.com, tom.ns.cloudflare.com
SOA1sierra.ns.cloudflare.com dns.cloudflare.

Analysis

Name Servers

startupbook.io is delegated to two name servers: sierra.ns.cloudflare.com and tom.ns.cloudflare.com.

startupbook.io uses the same name server setup as other domains, including fijabyron.com, radioo.io, af88.company, i9bet.care and sc88bet.co.

At least part of the name servers for startupbook.io are shared with other domains, for instance kopupapuzoumcapitalltd.digital, minecraft-serverlist.com, cabothub.click, bkuri.com and blog-mincir.com.

These name servers are commonly used alongside the name servers kia.ns.cloudflare.com.

Host names with six IP numbers:

sierra.ns.cloudflare.com points to: 2606:4700:50::a29f:26f5, 2803:f800:50::6ca2:c2f5, 2a06:98c1:50::ac40:22f5, 108.162.194.245, 162.159.38.245 and 172.64.34.245.

tom.ns.cloudflare.com points to: 2606:4700:58::adf5:3b93, 2803:f800:50::6ca2:c193, 2a06:98c1:50::ac40:2193, 108.162.193.147, 172.64.33.147 and 173.245.59.147.