`upthelimit.cz`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:daf2^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:110e^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.17.14^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.218.242^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`nora.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ad5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nora.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nora.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nora.ns.cloudflare.com`
		A	108.162.192.213^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nora.ns.cloudflare.com`
		A	172.64.32.213^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nora.ns.cloudflare.com`
		A	173.245.58.213^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nora.ns.cloudflare.com`
NS	`will.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b95^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`will.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c195^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`will.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2195^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`will.ns.cloudflare.com`
		A	108.162.193.149^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`will.ns.cloudflare.com`
		A	172.64.33.149^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`will.ns.cloudflare.com`
		A	173.245.59.149^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`will.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.17.14, 172.67.218.242
		IPv6 hints	2606:4700:3033::ac43:daf2, 2606:4700:3036::6815:110e
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=180, name=cloudflare-ech.com
SOA	`nora.ns.cloudflare.com`dns@cloudflare.com serial=2407864981

`cz`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.ns.nic.cz` ⭐
	NS	`b.ns.nic.cz`
	NS	`c.ns.nic.cz`
	NS	`d.ns.nic.cz`
	SOA	`a.ns.nic.cz`hostmaster@nic.cz serial=1786175241

Same first word

upthelimit.cz

DNS History

8 records (6 active, 2 former)

●NSnora.ns.cloudflare.com2026-06-27 → 2026-08-08 · 2 obs

● 2026-06-27 22:23:34
● 2026-08-08 08:13:58

●NSwill.ns.cloudflare.com2026-06-27 → 2026-08-08 · 2 obs

● 2026-06-27 22:23:34
● 2026-08-08 08:13:58

●A104.21.17.142026-06-27 → 2026-08-08 · 2 obs

● 2026-06-27 22:23:34
● 2026-08-08 08:13:58

●A172.67.218.2422026-06-27 → 2026-08-08 · 2 obs

● 2026-06-27 22:23:34
● 2026-08-08 08:13:58

●A2606:4700:3033::ac43:daf22026-07-10 → 2026-08-08 · 3 obs

○ 2026-06-27 22:23:34
● 2026-07-10 02:39:56
● 2026-08-08 08:13:58

○A2606:4700:3035::ac43:daf22026-06-27 → 2026-06-27 · 3 obs

● 2026-06-27 22:23:34
○ 2026-07-10 02:39:56
○ 2026-08-08 08:13:58

●A2606:4700:3036::6815:110e2026-07-10 → 2026-08-08 · 3 obs

○ 2026-06-27 22:23:34
● 2026-07-10 02:39:56
● 2026-08-08 08:13:58

○A2606:4700:3037::6815:110e2026-06-27 → 2026-06-27 · 3 obs

● 2026-06-27 22:23:34
○ 2026-07-10 02:39:56
○ 2026-08-08 08:13:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
upthelimit.cz	nora.ns.cloudflare.com, will.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.213

NS records: nora.ns.cloudflare.com, will.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for upthelimit.cz (unsigned zone)

⏱️ Timing

Total: 618ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.17.14, 172.67.218.242`
AAAA	2	`2606:4700:3033::ac43:daf2, 2606:4700:3036::6815:110e`
NS	2	`nora.ns.cloudflare.com, will.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`nora.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

upthelimit.cz resolves to four IP addresses: 104.21.17.14, 172.67.218.242, 2606:4700:3033::ac43:daf2 and 2606:4700:3036::6815:110e.

Among the host names that share IP numbers with upthelimit.cz are firewall.fibertel.eu, bts-sub.com, icd-codes.org and two others.

Name Servers

upthelimit.cz uses two name servers for its delegation: nora.ns.cloudflare.com and will.ns.cloudflare.com.

upthelimit.cz has the same name server delegation as a number of other domains, such as goodkeylogger.com, kandk.krakow.pl, eclipsedm.com and two more.

upthelimit.cz partially shares its NS delegation with several other domains, including dominiquesvallirana.com, supremainc.cam, new-casino-credit-cards.ink and two others.

These name servers often co-occur with the name servers dawn.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

Hostname nora.ns.cloudflare.com directs to 108.162.192.213, 172.64.32.213 and 173.245.58.213 along with 3 other IP addresses.

Hostname will.ns.cloudflare.com directs to 108.162.193.149, 172.64.33.149 and 173.245.59.149 along with 3 other IP addresses.

upthelimit.cz - robtex.com

upthelimit.cz

cz

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`upthelimit.cz`

`cz`