ddknow.com - robtex.com

ddknow.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:c7b0🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:3214🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.50.20Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.199.176🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScolin.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c4b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcolin.ns.cloudflare.com
A2803:f800:50::6ca2:c34b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcolin.ns.cloudflare.com
A2a06:98c1:50::ac40:234b🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcolin.ns.cloudflare.com
A108.162.195.75🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcolin.ns.cloudflare.com
A162.159.44.75Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcolin.ns.cloudflare.com
A172.64.35.75🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcolin.ns.cloudflare.com
NSmelinda.ns.cloudflare.com
A2606:4700:50::adf5:3ac6🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmelinda.ns.cloudflare.com
A2803:f800:50::6ca2:c0c6🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmelinda.ns.cloudflare.com
A2a06:98c1:50::ac40:20c6🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmelinda.ns.cloudflare.com
A108.162.192.198🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmelinda.ns.cloudflare.com
A172.64.32.198🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmelinda.ns.cloudflare.com
A173.245.58.198🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmelinda.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.50.20, 172.67.199.176
IPv62606:4700:3032::ac43:c7b0, 2606:4700:3033::6815:3214
SOAcolin.ns.cloudflare.comdns@cloudflare.com serial=2396714698

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

Same first word

ddknow.com

Similar names

downdk.com
knowdd.com

DNS History

12 records (6 active, 6 former)

20162017201820192020202120222023202420252026NScolin.ns.cloudflare.commelinda.ns.cloudflare.comdns29.hichina.comdns30.hichina.comns55.domaincontrol.comns56.domaincontrol.comA104.21.50.20172.67.199.1762606:4700:3032::ac43:c7b02606:4700:3033::6815:3214114.80.101.1245.196.66.74
●NScolin.ns.cloudflare.com2026-02-20 → 2026-03-11 · 3 obs
○ 2019-01-17 19:57:04
● 2026-02-20 04:42:44
● 2026-03-11 10:30:52
○NSdns29.hichina.com2015-08-08 → 2017-02-15 · 4 obs
● 2015-08-08 10:07:28
● 2017-02-15 19:23:24
○ 2019-01-17 19:57:04
○ 2026-03-11 10:30:52
○NSdns30.hichina.com2015-08-08 → 2017-02-15 · 4 obs
● 2015-08-08 10:07:28
● 2017-02-15 19:23:24
○ 2019-01-17 19:57:04
○ 2026-03-11 10:30:52
●NSmelinda.ns.cloudflare.com2026-02-20 → 2026-03-11 · 3 obs
○ 2019-01-17 19:57:04
● 2026-02-20 04:42:44
● 2026-03-11 10:30:52
○NSns55.domaincontrol.com2019-01-17 → 2019-01-17 · 4 obs
○ 2017-02-15 19:23:24
● 2019-01-17 19:57:04
○ 2026-02-20 04:42:44
○ 2026-03-11 10:30:52
○NSns56.domaincontrol.com2019-01-17 → 2019-01-17 · 4 obs
○ 2017-02-15 19:23:24
● 2019-01-17 19:57:04
○ 2026-02-20 04:42:44
○ 2026-03-11 10:30:52
●A104.21.50.202026-02-20 → 2026-03-11 · 3 obs
○ 2019-01-17 19:57:04
● 2026-02-20 04:42:44
● 2026-03-11 10:30:52
○A114.80.101.122015-08-08 → 2017-02-15 · 4 obs
● 2015-08-08 10:07:28
● 2017-02-15 19:23:24
○ 2019-01-17 19:57:04
○ 2026-03-11 10:30:52
●A172.67.199.1762026-02-20 → 2026-03-11 · 3 obs
○ 2019-01-17 19:57:04
● 2026-02-20 04:42:44
● 2026-03-11 10:30:52
●A2606:4700:3032::ac43:c7b02026-02-20 → 2026-03-11 · 3 obs
○ 2019-01-17 19:57:04
● 2026-02-20 04:42:44
● 2026-03-11 10:30:52
●A2606:4700:3033::6815:32142026-02-20 → 2026-03-11 · 3 obs
○ 2019-01-17 19:57:04
● 2026-02-20 04:42:44
● 2026-03-11 10:30:52
○A45.196.66.742019-01-17 → 2019-01-17 · 4 obs
○ 2017-02-15 19:23:24
● 2019-01-17 19:57:04
○ 2026-02-20 04:42:44
○ 2026-03-11 10:30:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
ddknow.commelinda.ns.cloudflare.com, colin.ns.cloudflare.com12 records

✅ Authoritative Response

Server: 108.162.192.198

NS records: melinda.ns.cloudflare.com, colin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ddknow.com (unsigned zone)

⏱️ Timing

Total: 245ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.199.176, 104.21.50.20
AAAA22606:4700:3032::ac43:c7b0, 2606:4700:3033::6815:3214
NS2colin.ns.cloudflare.com, melinda.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1colin.ns.cloudflare.com dns.cloudflare.c

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

Four IP numbers are pointed to by ddknow.com: 2606:4700:3032::ac43:c7b0, 2606:4700:3033::6815:3214, 104.21.50.20 and 172.67.199.176.

other host names including vul-205.bkb.intrinsec.net, isc-ti-104.isc-par1.bkb.intrinsec.net, ada-34.itx-par5.bkb.intrinsec.net, codilog-173.isc-par1.bkb.intrinsec.net and nos-net1.bkb.intrinsec.net share IP numbers with ddknow.com.

Name Servers

ddknow.com is delegated to two name servers colin.ns.cloudflare.com and melinda.ns.cloudflare.com.

ddknow.com shares the same name server setup as other domains, for instance smt18.com, agilityaction.com, fogope.com, i-chyau.com and njgyh.com.

ddknow.com at least partially shares name servers with other domains, for instance hotelacrus.com, pro-data.tech, deluxepass.com, kidzzstory.com and seventhqueen.com.

These name servers are commonly used with laylah.ns.cloudflare.com, jaxson.ns.cloudflare.com and noor.ns.cloudflare.com.

Host names with six IP numbers:

Host name colin.ns.cloudflare.com points to: 2606:4700:58::a29f:2c4b, 2803:f800:50::6ca2:c34b, 2a06:98c1:50::ac40:234b, 108.162.195.75, 162.159.44.75 and 172.64.35.75.

Host name melinda.ns.cloudflare.com points to: 2606:4700:50::adf5:3ac6, 2803:f800:50::6ca2:c0c6, 2a06:98c1:50::ac40:20c6, 108.162.192.198, 172.64.32.198 and 173.245.58.198.