`rpachallenge.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3037::6815:13be^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:bc90^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.19.190^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.188.144^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dave.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b6d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dave.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c16d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dave.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:216d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dave.ns.cloudflare.com`
		A	108.162.193.109^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dave.ns.cloudflare.com`
		A	172.64.33.109^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dave.ns.cloudflare.com`
		A	173.245.59.109^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dave.ns.cloudflare.com`
NS	`olga.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a89^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`olga.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c089^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`olga.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2089^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`olga.ns.cloudflare.com`
		A	108.162.192.137^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`olga.ns.cloudflare.com`
		A	172.64.32.137^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`olga.ns.cloudflare.com`
		A	173.245.58.137^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`olga.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.19.190, 172.67.188.144
		IPv6 hints	2606:4700:3037::6815:13be, 2606:4700:3037::ac43:bc90
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=9, name=cloudflare-ech.com
SOA	`dave.ns.cloudflare.com`dns@cloudflare.com serial=2403797611

`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.net`nstld@verisign-grs.com serial=1778564766

Subdomains

www.rpachallenge.com

Same first word

rpachallenge.com

rpachallenge.azurewebsites.net

DNS History

16 records (6 active, 10 former)

●NSdave.ns.cloudflare.com2026-02-16 → 2026-05-12 · 3 obs

○ 2017-12-05 04:45:08
● 2026-02-16 10:41:32
● 2026-05-12 06:11:00

○NSns-cloud-b1.googledomains.com2016-12-21 → 2017-12-05 · 4 obs

● 2016-12-21 02:32:58
● 2017-12-05 04:45:08
○ 2026-02-16 10:41:32
○ 2026-05-12 06:11:00

○NSns-cloud-b2.googledomains.com2016-12-21 → 2017-12-05 · 4 obs

● 2016-12-21 02:32:58
● 2017-12-05 04:45:08
○ 2026-02-16 10:41:32
○ 2026-05-12 06:11:00

○NSns-cloud-b3.googledomains.com2016-12-21 → 2017-12-05 · 4 obs

● 2016-12-21 02:32:58
● 2017-12-05 04:45:08
○ 2026-02-16 10:41:32
○ 2026-05-12 06:11:00

○NSns-cloud-b4.googledomains.com2016-12-21 → 2017-12-05 · 4 obs

● 2016-12-21 02:32:58
● 2017-12-05 04:45:08
○ 2026-02-16 10:41:32
○ 2026-05-12 06:11:00

●NSolga.ns.cloudflare.com2026-02-16 → 2026-05-12 · 3 obs

○ 2017-12-05 04:45:08
● 2026-02-16 10:41:32
● 2026-05-12 06:11:00

●A104.21.19.1902026-02-16 → 2026-05-12 · 8 obs

○ 2017-12-05 04:45:08
● 2026-02-16 10:41:32
○ 2026-02-18 04:46:50
● 2026-02-18 17:33:26
● 2026-02-24 01:19:06
○ 2026-03-05 21:08:40
● 2026-05-12 06:10:58
● 2026-05-12 06:11:00

○A13.65.39.1652017-12-05 → 2017-12-05 · 4 obs

○ 2016-12-21 02:32:58
● 2017-12-05 04:45:08
○ 2026-02-16 10:41:32
○ 2026-05-12 06:11:00

●A172.67.188.1442026-02-16 → 2026-05-12 · 8 obs

○ 2017-12-05 04:45:08
● 2026-02-16 10:41:32
○ 2026-02-18 04:46:50
● 2026-02-18 17:33:26
● 2026-02-24 01:19:06
○ 2026-03-05 21:08:40
● 2026-05-12 06:10:58
● 2026-05-12 06:11:00

○A188.114.96.02026-02-18 → 2026-03-05 · 7 obs

○ 2026-02-16 10:41:32
● 2026-02-18 04:46:50
○ 2026-02-18 17:33:26
○ 2026-02-24 01:19:06
● 2026-03-05 21:08:40
○ 2026-05-12 06:10:58
○ 2026-05-12 06:11:00

○A188.114.97.02026-02-18 → 2026-03-05 · 7 obs

○ 2026-02-16 10:41:32
● 2026-02-18 04:46:50
○ 2026-02-18 17:33:26
○ 2026-02-24 01:19:06
● 2026-03-05 21:08:40
○ 2026-05-12 06:10:58
○ 2026-05-12 06:11:00

●A2606:4700:3037::6815:13be2026-02-16 → 2026-05-12 · 8 obs

○ 2017-12-05 04:45:08
● 2026-02-16 10:41:32
○ 2026-02-18 04:46:50
● 2026-02-18 17:33:26
● 2026-02-24 01:19:06
○ 2026-03-05 21:08:40
● 2026-05-12 06:10:58
● 2026-05-12 06:11:00

●A2606:4700:3037::ac43:bc902026-02-16 → 2026-05-12 · 8 obs

○ 2017-12-05 04:45:08
● 2026-02-16 10:41:32
○ 2026-02-18 04:46:50
● 2026-02-18 17:33:26
● 2026-02-24 01:19:06
○ 2026-03-05 21:08:40
● 2026-05-12 06:10:58
● 2026-05-12 06:11:00

○A2a06:98c1:3120::2026-02-18 → 2026-03-05 · 7 obs

○ 2026-02-16 10:41:32
● 2026-02-18 04:46:50
○ 2026-02-18 17:33:26
○ 2026-02-24 01:19:06
● 2026-03-05 21:08:40
○ 2026-05-12 06:10:58
○ 2026-05-12 06:11:00

○A2a06:98c1:3121::2026-02-18 → 2026-03-05 · 7 obs

○ 2026-02-16 10:41:32
● 2026-02-18 04:46:50
○ 2026-02-18 17:33:26
○ 2026-02-24 01:19:06
● 2026-03-05 21:08:40
○ 2026-05-12 06:10:58
○ 2026-05-12 06:11:00

○A40.113.90.2022016-12-21 → 2016-12-21 · 3 obs

● 2016-12-21 02:32:58
○ 2017-12-05 04:45:08
○ 2026-05-12 06:11:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
rpachallenge.com	dave.ns.cloudflare.com, olga.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.109

NS records: dave.ns.cloudflare.com, olga.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rpachallenge.com (unsigned zone)

⏱️ Timing

Total: 2825ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.19.190, 172.67.188.144`
AAAA	2	`2606:4700:3037::ac43:bc90, 2606:4700:3037::6815:13be`
NS	2	`dave.ns.cloudflare.com, olga.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dave.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The parent of www.rpachallenge.com is rpachallenge.com.

IP Addresses

rpachallenge.com points to four IP numbers: 2606:4700:3037::6815:13be, 2606:4700:3037::ac43:bc90, 104.21.19.190 and 172.67.188.144.

Other host names, for instance tadvancesite.com, dggubangjd.com, smtp.cva.org.au, bombomusic.com and api.guidestar.org.il.00d24000000p4lueaa.live.siteforce.com.cdn.cloudflare.net share IP numbers with rpachallenge.com.

Name Servers

rpachallenge.com is delegated to two name servers: dave.ns.cloudflare.com and olga.ns.cloudflare.com.

rpachallenge.com uses the same name server setup as other domains, for instance remcobron.com, ceotudent.com, febnet.org.br, mrp.com.my and nexalt.org.

rpachallenge.com shares name servers with other domains at least partially, for instance planetnation.org, shoujisouhutiyba.org.cn, anilist.com, lydagallego.com and guangdonghongyuanjulebugw.net.cn.

these name servers are commonly used together with dana.ns.cloudflare.com and mimi.ns.cloudflare.com.

Host names with six IP numbers: dave.ns.cloudflare.com points to 2606:4700:58::adf5:3b6d, 2803:f800:50::6ca2:c16d, 2a06:98c1:50::ac40:216d, 108.162.193.109, 172.64.33.109 and 173.245.59.109; olga.ns.cloudflare.com points to 2606:4700:50::adf5:3a89, 2803:f800:50::6ca2:c089, 2a06:98c1:50::ac40:2089, 108.162.192.137, 172.64.32.137 and 173.245.58.137.

rpachallenge.com - robtex.com