knowcd.com - robtex.com
knowcd.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3034::6815:1d80🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::ac43:9504🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.29.128Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.149.4🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | fiona.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3a9d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | fiona.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c09d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | fiona.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:209d🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | fiona.ns.cloudflare.com | ||||||
| A | 108.162.192.157🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | fiona.ns.cloudflare.com | ||||||
| A | 172.64.32.157🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | fiona.ns.cloudflare.com | ||||||
| A | 173.245.58.157🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | fiona.ns.cloudflare.com | ||||||
| NS | leland.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2c08🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | leland.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c308🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | leland.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2308🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | leland.ns.cloudflare.com | ||||||
| A | 108.162.195.8🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | leland.ns.cloudflare.com | ||||||
| A | 162.159.44.8Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | leland.ns.cloudflare.com | ||||||
| A | 172.64.35.8🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | leland.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.29.128, 172.67.149.4 | ||||||
| IPv6 | 2606:4700:3034::6815:1d80, 2606:4700:3036::ac43:9504 | ||||||
| SOA | fiona.ns.cloudflare.comdns@cloudflare.com serial=2397034133 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1774515122 | ||||||
Same first word
knowcd.com |
Similar names
DNS History
6 records (6 active, 0 former)
●NSfiona.ns.cloudflare.com2026-03-08 → 2026-03-26 · 2 obs
● 2026-03-26 09:17:58
●NSleland.ns.cloudflare.com2026-03-08 → 2026-03-26 · 2 obs
● 2026-03-26 09:17:58
●A104.21.29.1282026-03-08 → 2026-03-26 · 2 obs
● 2026-03-26 09:17:58
●A172.67.149.42026-03-08 → 2026-03-26 · 2 obs
● 2026-03-26 09:17:58
●A2606:4700:3034::6815:1d802026-03-08 → 2026-03-26 · 2 obs
● 2026-03-26 09:17:58
●A2606:4700:3036::ac43:95042026-03-08 → 2026-03-26 · 2 obs
● 2026-03-26 09:17:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net, g.gtld-servers.net... | - |
| knowcd.com | fiona.ns.cloudflare.com, leland.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.195.8
NS records: fiona.ns.cloudflare.com, leland.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knowcd.com (unsigned zone)
⏱️ Timing
Total: 111ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.29.128, 172.67.149.4 |
| AAAA | 2 | 2606:4700:3036::ac43:9504, 2606:4700:3034::6815:1d80 |
| NS | 2 | fiona.ns.cloudflare.com, leland.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | fiona.ns.cloudflare.com dns.cloudflare.c |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (fiona.ns.cloudflare.com, fiona.ns.cloudflare.com, fiona.ns.cloudflare.com...)
Analysis
IP Addresses
knowcd.com points to four IP numbers: 2606:4700:3034::6815:1d80, 2606:4700:3036::ac43:9504, 104.21.29.128 and 172.67.149.4.
Other host names, for instance dd057.com, mail.higheredservices.org, pspfanboy.com, marirs.net and hfmfny.com share IP numbers with knowcd.com.
Name Servers
knowcd.com's delegation is to two name servers fiona.ns.cloudflare.com and leland.ns.cloudflare.com.
knowcd.com shares the same name server configuration as other domains, such as acsielevators.com, kja.com, enlighten-the-world.com, gliiua.top and acsielevator.com.
knowcd.com at least partially shares its name servers with other domains, for instance nrelax.ru, sorsnce.com, another71.com, bilory.com and optimizegateway.info.
Host names with six IP numbers:
fiona.ns.cloudflare.com points to: 2606:4700:50::adf5:3a9d, 2803:f800:50::6ca2:c09d, 2a06:98c1:50::ac40:209d, 108.162.192.157, 172.64.32.157 and 173.245.58.157.
leland.ns.cloudflare.com points to: 2606:4700:58::a29f:2c08, 2803:f800:50::6ca2:c308, 2a06:98c1:50::ac40:2308, 108.162.195.8, 162.159.44.8 and 172.64.35.8.