yucaibook.com - robtex.com

yucaibook.com

DNSSEC⚠️ Not signed
A2606:4700:3036::ac43:9338🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:2f71🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.47.113Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.147.56🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScrystal.ns.cloudflare.com ⭐
A2606:4700:50::a29f:26ca🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcrystal.ns.cloudflare.com
A2803:f800:50::6ca2:c2ca🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcrystal.ns.cloudflare.com
A2a06:98c1:50::ac40:22ca🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcrystal.ns.cloudflare.com
A108.162.194.202🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcrystal.ns.cloudflare.com
A162.159.38.202Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcrystal.ns.cloudflare.com
A172.64.34.202🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcrystal.ns.cloudflare.com
NSthaddeus.ns.cloudflare.com
A2606:4700:58::a29f:2c7f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRthaddeus.ns.cloudflare.com
A2803:f800:50::6ca2:c37f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRthaddeus.ns.cloudflare.com
A2a06:98c1:50::ac40:237f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRthaddeus.ns.cloudflare.com
A108.162.195.127🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRthaddeus.ns.cloudflare.com
A162.159.44.127Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRthaddeus.ns.cloudflare.com
A172.64.35.127🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRthaddeus.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.47.113, 172.67.147.56
IPv6 hints2606:4700:3036::ac43:9338, 2606:4700:3037::6815:2f71
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=1, name=cloudflare-ech.com
SOAcrystal.ns.cloudflare.comdns@cloudflare.com serial=2402471022

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=1778555591

Same first word

yucaibook.com

DNS History

13 records (6 active, 7 former)

20162017201820192020202120222023202420252026NScrystal.ns.cloudflare.comthaddeus.ns.cloudflare.comdns13.hichina.comdns14.hichina.comns1.dnspai.comns2.dnspai.comA104.21.47.113172.67.147.562606:4700:3036::ac43:93382606:4700:3037::6815:2f71154.86.186.203223.7.109.6523.81.150.56
●NScrystal.ns.cloudflare.com2026-04-24 → 2026-05-12 · 3 obs
○ 2020-03-22 23:29:28
● 2026-04-24 21:18:08
● 2026-05-12 03:18:42
○NSdns13.hichina.com2015-07-25 → 2017-03-21 · 4 obs
● 2015-07-25 10:22:46
● 2017-03-21 11:42:38
○ 2020-03-22 23:29:28
○ 2026-05-12 03:18:42
○NSdns14.hichina.com2015-07-25 → 2017-03-21 · 4 obs
● 2015-07-25 10:22:46
● 2017-03-21 11:42:38
○ 2020-03-22 23:29:28
○ 2026-05-12 03:18:42
○NSns1.dnspai.com2020-03-22 → 2020-03-22 · 4 obs
○ 2017-03-21 11:42:38
● 2020-03-22 23:29:28
○ 2026-04-24 21:18:08
○ 2026-05-12 03:18:42
○NSns2.dnspai.com2020-03-22 → 2020-03-22 · 4 obs
○ 2017-03-21 11:42:38
● 2020-03-22 23:29:28
○ 2026-04-24 21:18:08
○ 2026-05-12 03:18:42
●NSthaddeus.ns.cloudflare.com2026-04-24 → 2026-05-12 · 3 obs
○ 2020-03-22 23:29:28
● 2026-04-24 21:18:08
● 2026-05-12 03:18:42
●A104.21.47.1132026-04-24 → 2026-05-12 · 3 obs
○ 2020-03-22 23:29:28
● 2026-04-24 21:18:08
● 2026-05-12 03:18:42
○A154.86.186.2032026-04-24 → 2026-05-12 · 2 obs
○ 2026-04-24 21:18:08
○ 2026-05-12 03:18:42
●A172.67.147.562026-04-24 → 2026-05-12 · 3 obs
○ 2020-03-22 23:29:28
● 2026-04-24 21:18:08
● 2026-05-12 03:18:42
○A223.7.109.652015-07-25 → 2017-03-21 · 4 obs
● 2015-07-25 10:22:46
● 2017-03-21 11:42:38
○ 2020-03-22 23:29:28
○ 2026-05-12 03:18:42
○A23.81.150.562020-03-22 → 2020-03-22 · 4 obs
○ 2017-03-21 11:42:38
● 2020-03-22 23:29:28
○ 2026-04-24 21:18:08
○ 2026-05-12 03:18:42
●A2606:4700:3036::ac43:93382026-04-24 → 2026-05-12 · 3 obs
○ 2020-03-22 23:29:28
● 2026-04-24 21:18:08
● 2026-05-12 03:18:42
●A2606:4700:3037::6815:2f712026-04-24 → 2026-05-12 · 3 obs
○ 2020-03-22 23:29:28
● 2026-04-24 21:18:08
● 2026-05-12 03:18:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
yucaibook.comcrystal.ns.cloudflare.com, thaddeus.ns.cloudflare.com12 records

✅ Authoritative Response

Server:172.64.34.202

NS records: crystal.ns.cloudflare.com, thaddeus.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for yucaibook.com (unsigned zone)

⏱️ Timing

Total: 94ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.47.113, 172.67.147.56
AAAA22606:4700:3037::6815:2f71, 2606:4700:3036::ac43:9338
NS2crystal.ns.cloudflare.com, thaddeus.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1crystal.ns.cloudflare.com dns.cloudflare

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

yucaibook.com maps to four IP numbers: 2606:4700:3036::ac43:9338, 2606:4700:3037::6815:2f71, 104.21.47.113 and 172.67.147.56.

Other host names, for instance gddoctor.com, www.swottertech.com, ahflbf.com, hx78x.com and bodrumciceksiparisi.com share IP numbers with yucaibook.com.

Name Servers

Two name servers crystal.ns.cloudflare.com and thaddeus.ns.cloudflare.com are delegated to yucaibook.com.

yucaibook.com uses the same name server configuration as other domains, such as 1688zh.com, 26568.net, mdkspa.com, cctv1-7.com and sdtjw.com.

yucaibook.com at least partially shares name servers with other domains such as wxssmt.com, brucetrail.org, jfbleau.com, malkis4d.org and tnnl.me.

These name servers are commonly used with apollo.ns.cloudflare.com and maxim.ns.cloudflare.com.

Host names with six IP numbers: Host name crystal.ns.cloudflare.com points to 2606:4700:50::a29f:26ca, 2803:f800:50::6ca2:c2ca, 2a06:98c1:50::ac40:22ca, 108.162.194.202, 162.159.38.202 and 172.64.34.202; host name thaddeus.ns.cloudflare.com points to 2606:4700:58::a29f:2c7f, 2803:f800:50::6ca2:c37f, 2a06:98c1:50::ac40:237f, 108.162.195.127, 162.159.44.127 and 172.64.35.127.