chengda-stem.com - robtex.com

chengda-stem.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:9819🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:3885🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.56.133Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.152.25🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdean.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b99🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdean.ns.cloudflare.com
A2803:f800:50::6ca2:c199🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdean.ns.cloudflare.com
A2a06:98c1:50::ac40:2199🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdean.ns.cloudflare.com
A108.162.193.153🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdean.ns.cloudflare.com
A172.64.33.153🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdean.ns.cloudflare.com
A173.245.59.153🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdean.ns.cloudflare.com
NSlilith.ns.cloudflare.com
A2606:4700:50::a29f:268f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlilith.ns.cloudflare.com
A2803:f800:50::6ca2:c28f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlilith.ns.cloudflare.com
A2a06:98c1:50::ac40:228f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlilith.ns.cloudflare.com
A108.162.194.143🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlilith.ns.cloudflare.com
A162.159.38.143Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlilith.ns.cloudflare.com
A172.64.34.143🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlilith.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.56.133, 172.67.152.25
IPv6 hints2606:4700:3030::ac43:9819, 2606:4700:3037::6815:3885
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=102, name=cloudflare-ech.com
SOAdean.ns.cloudflare.comdns@cloudflare.com serial=2410552727

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=1785490492

Same first word

chengda-stem.com

DNS History

10 records (6 active, 4 former)

NSdean.ns.cloudflare.comlilith.ns.cloudflare.comA104.21.56.133172.67.152.252606:4700:3030::ac43:98192606:4700:3037::6815:3885188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●NSdean.ns.cloudflare.com2026-07-20 → 2026-07-31 · 2 obs
● 2026-07-20 13:39:22
● 2026-07-31 09:46:48
●NSlilith.ns.cloudflare.com2026-07-20 → 2026-07-31 · 2 obs
● 2026-07-20 13:39:22
● 2026-07-31 09:46:48
●A104.21.56.1332026-07-31 → 2026-07-31 · 2 obs
○ 2026-07-20 13:39:22
● 2026-07-31 09:46:48
●A172.67.152.252026-07-31 → 2026-07-31 · 2 obs
○ 2026-07-20 13:39:22
● 2026-07-31 09:46:48
○A188.114.96.02026-07-20 → 2026-07-20 · 2 obs
● 2026-07-20 13:39:22
○ 2026-07-31 09:46:48
○A188.114.97.02026-07-20 → 2026-07-20 · 2 obs
● 2026-07-20 13:39:22
○ 2026-07-31 09:46:48
●A2606:4700:3030::ac43:98192026-07-31 → 2026-07-31 · 2 obs
○ 2026-07-20 13:39:22
● 2026-07-31 09:46:48
●A2606:4700:3037::6815:38852026-07-31 → 2026-07-31 · 2 obs
○ 2026-07-20 13:39:22
● 2026-07-31 09:46:48
○A2a06:98c1:3120::2026-07-20 → 2026-07-20 · 2 obs
● 2026-07-20 13:39:22
○ 2026-07-31 09:46:48
○A2a06:98c1:3121::2026-07-20 → 2026-07-20 · 2 obs
● 2026-07-20 13:39:22
○ 2026-07-31 09:46:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, e.gtld-servers.net...-
chengda-stem.comdean.ns.cloudflare.com, lilith.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.143

NS records: dean.ns.cloudflare.com, lilith.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for chengda-stem.com (unsigned zone)

⏱️ Timing

Total: 114ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.152.25, 104.21.56.133
AAAA22606:4700:3030::ac43:9819, 2606:4700:3037::6815:3885
NS2dean.ns.cloudflare.com, lilith.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1dean.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

chengda-stem.com has four IP addresses: 104.21.56.133, 172.67.152.25, 2606:4700:3030::ac43:9819 and 2606:4700:3037::6815:3885.

Two other host names, along with ns5.bfgitech.com, cemcrt.cam and munshiandassociates.com, also share IP numbers with chengda-stem.com.

Name Servers

chengda-stem.com has two authoritative name servers — dean.ns.cloudflare.com and lilith.ns.cloudflare.com.

chengda-stem.com shares its NS records with other domains, for example stb58.com, uyo1234.com, 789bxg.com and two others.

chengda-stem.com shares at least some of its name servers with other domains, including jdwly.com, i-paying.com, seocostadelsol.com and two others.

These name servers are frequently paired with the name servers diva.ns.cloudflare.com and jessica.ns.cloudflare.com.

DNS names with 6 IP addresses:

dean.ns.cloudflare.com points to 108.162.193.153, 172.64.33.153, 173.245.59.153 and 3 other IP addresses.

lilith.ns.cloudflare.com points to 108.162.194.143, 162.159.38.143, 172.64.34.143 and 3 other IP addresses.