`ostrausercontent.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:9356^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::6815:5fc4^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.95.196^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.147.86^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`brad.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b69^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brad.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c169^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`brad.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2169^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`brad.ns.cloudflare.com`
		A	108.162.193.105^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brad.ns.cloudflare.com`
		A	172.64.33.105^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brad.ns.cloudflare.com`
		A	173.245.59.105^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brad.ns.cloudflare.com`
NS	`kay.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a7d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kay.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c07d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kay.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:207d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kay.ns.cloudflare.com`
		A	108.162.192.125^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kay.ns.cloudflare.com`
		A	172.64.32.125^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kay.ns.cloudflare.com`
		A	173.245.58.125^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kay.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.95.196, 172.67.147.86
		IPv6 hints	2606:4700:3031::ac43:9356, 2606:4700:3032::6815:5fc4
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=182, name=cloudflare-ech.com
SOA	`brad.ns.cloudflare.com`dns@cloudflare.com serial=2408025580

`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=1784191802

🔒 HSTS Preload (+subdomains)

Same first word

ostrausercontent.com

DNS History

8 records (6 active, 2 former)

●NSbrad.ns.cloudflare.com2026-02-28 → 2026-07-16 · 2 obs

● 2026-02-28 18:02:16
● 2026-07-16 08:52:04

●NSkay.ns.cloudflare.com2026-02-28 → 2026-07-16 · 2 obs

● 2026-02-28 18:02:16
● 2026-07-16 08:52:04

●A104.21.95.1962026-02-28 → 2026-07-16 · 2 obs

● 2026-02-28 18:02:16
● 2026-07-16 08:52:04

●A172.67.147.862026-02-28 → 2026-07-16 · 2 obs

● 2026-02-28 18:02:16
● 2026-07-16 08:52:04

●A2606:4700:3031::ac43:93562026-07-08 → 2026-07-16 · 3 obs

○ 2026-06-15 22:44:20
● 2026-07-08 13:52:58
● 2026-07-16 08:52:04

●A2606:4700:3032::6815:5fc42026-07-08 → 2026-07-16 · 3 obs

○ 2026-06-15 22:44:20
● 2026-07-08 13:52:58
● 2026-07-16 08:52:04

○A2606:4700:3033::ac43:93562026-02-28 → 2026-06-15 · 4 obs

● 2026-02-28 18:02:16
● 2026-06-15 22:44:20
○ 2026-07-08 13:52:58
○ 2026-07-16 08:52:04

○A2606:4700:3035::6815:5fc42026-02-28 → 2026-06-15 · 4 obs

● 2026-02-28 18:02:16
● 2026-06-15 22:44:20
○ 2026-07-08 13:52:58
○ 2026-07-16 08:52:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, e.gtld-servers.net, k.gtld-servers.net, g.gtld-servers.net...	-
ostrausercontent.com	brad.ns.cloudflare.com, kay.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.105

NS records: brad.ns.cloudflare.com, kay.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 168ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.147.86, 104.21.95.196`
AAAA	2	`2606:4700:3031::ac43:9356, 2606:4700:3032::6815:5fc4`
NS	2	`brad.ns.cloudflare.com, kay.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`brad.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

ostrausercontent.com has four IP addresses: 104.21.95.196, 172.67.147.86, 2606:4700:3031::ac43:9356 and 2606:4700:3032::6815:5fc4.

Two other host names, along with openai.32259719351844.workers.dev, 25kan.com and chinakmp.com, also share IP numbers with ostrausercontent.com.

Name Servers

The NS records for ostrausercontent.com delegate to brad.ns.cloudflare.com and kay.ns.cloudflare.com.

ostrausercontent.com shares its NS records with other domains, for example theatre.love, laarboleda.es, fotislaw.com and two others.

ostrausercontent.com has at least partial name server overlap with other domains, such as alias.mx, brenner-fiedler.com, lady-era.net and two others.

These name servers tend to appear together with the name servers emma.ns.cloudflare.com, trevor.ns.cloudflare.com and eric.ns.cloudflare.com.

DNS names with 6 IP addresses:

brad.ns.cloudflare.com maps to 108.162.193.105, 172.64.33.105, 173.245.59.105 and 3 additional IP addresses.

kay.ns.cloudflare.com maps to 108.162.192.125, 172.64.32.125, 173.245.58.125 and 3 additional IP addresses.

ostrausercontent.com - robtex.com