`readblueboxfree.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:a2b8^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:a64^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.10.100^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.162.184^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`alberto.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c12^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alberto.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c312^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`alberto.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2312^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`alberto.ns.cloudflare.com`
		A	108.162.195.18^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	162.159.44.18^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.35.18^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`nucum.ns.cloudflare.com`
		A	2606:4700:50::a29f:2691^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nucum.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c291^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nucum.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2291^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nucum.ns.cloudflare.com`
		A	108.162.194.145^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nucum.ns.cloudflare.com`
		A	162.159.38.145^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nucum.ns.cloudflare.com`
		A	172.64.34.145^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nucum.ns.cloudflare.com`
MX	`mx1-hosting.jellyfish.systems` ⭐
		A	162.255.118.28^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`oxse3a.privateemail.com`
MX	`_dc-mx.fa24cae1811c.readblueboxfree.com`⁽¹⁰⁾
		A	45.134.226.148^{🇩🇪 CONTABO45.134.226.0/24}
			PTR	`vmi2946424.contaboserver.net`
MX	`mx2-hosting.jellyfish.systems`⁽¹⁰⁾
		A	162.255.118.29^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`oxse2b.privateemail.com`
MX	`mx3-hosting.jellyfish.systems`⁽²⁰⁾
		A	162.255.118.13^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`mx3-hosting.jellyfish.systems`
TXT	`google-site-verification=Aa_Y4uYjKwZn2AGp16P1_-SWbCZiqQcI2fmLgozMqJI`
TXT	`v=spf1 +a +mx +ip4:162.0.235.50 include:spf.web-hosting.com ~all`
TXT	`v=spf1 a mx ip4:45.134.226.148 ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.10.100, 172.67.162.184
		IPv6 hints	2606:4700:3031::ac43:a2b8, 2606:4700:3035::6815:a64
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=179, name=cloudflare-ech.com
SOA	`alberto.ns.cloudflare.com`dns@cloudflare.com serial=2409271110

`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=1785361347

Subdomains

w4.readblueboxfree.com

Same first word

readblueboxfree.com

DNS History

11 records (10 active, 1 former)

●NSalberto.ns.cloudflare.com2026-06-10 → 2026-07-29 · 2 obs

● 2026-06-10 23:01:36
● 2026-07-29 21:48:04

●NSnucum.ns.cloudflare.com2026-06-10 → 2026-07-29 · 2 obs

● 2026-06-10 23:01:36
● 2026-07-29 21:48:04

●MX_dc-mx.fa24cae1811c.readblueboxfree.com2026-06-10 → 2026-07-29 · 2 obs

● 2026-06-10 23:01:36
● 2026-07-29 21:48:04

●MXmx1-hosting.jellyfish.systems2026-06-10 → 2026-07-29 · 2 obs

● 2026-06-10 23:01:36
● 2026-07-29 21:48:04

●MXmx2-hosting.jellyfish.systems2026-06-10 → 2026-07-29 · 2 obs

● 2026-06-10 23:01:36
● 2026-07-29 21:48:04

●MXmx3-hosting.jellyfish.systems2026-06-10 → 2026-07-29 · 2 obs

● 2026-06-10 23:01:36
● 2026-07-29 21:48:04

●A104.21.10.1002026-06-10 → 2026-07-29 · 2 obs

● 2026-06-10 23:01:36
● 2026-07-29 21:48:04

●A172.67.162.1842026-06-10 → 2026-07-29 · 2 obs

● 2026-06-10 23:01:36
● 2026-07-29 21:48:04

●A2606:4700:3031::ac43:a2b82026-06-10 → 2026-07-29 · 2 obs

● 2026-06-10 23:01:36
● 2026-07-29 21:48:04

●A2606:4700:3035::6815:a642026-06-25 → 2026-07-29 · 3 obs

○ 2026-06-10 23:01:36
● 2026-06-25 20:15:58
● 2026-07-29 21:48:04

○A2606:4700:3036::6815:a642026-06-10 → 2026-06-10 · 3 obs

● 2026-06-10 23:01:36
○ 2026-06-25 20:15:58
○ 2026-07-29 21:48:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
readblueboxfree.com	nucum.ns.cloudflare.com, alberto.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.145

NS records: nucum.ns.cloudflare.com, alberto.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for readblueboxfree.com (unsigned zone)

⏱️ Timing

Total: 193ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.162.184, 104.21.10.100`
AAAA	2	`2606:4700:3035::6815:a64, 2606:4700:3031::ac43:a2b8`
NS	2	`alberto.ns.cloudflare.com, nucum.ns.cloudflare.com`
MX	4	`mx2-hosting.jellyfish.systems (pri: 10), _dc-mx.fa24cae1811c.readblueboxfree.com ...`
TXT	3	`google-site-verification=Aa_Y4uYjKwZn2AG, v=spf1 +a +mx +ip4:162.0.235.50 include:...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`alberto.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

w4.readblueboxfree.com is delegated beneath readblueboxfree.com.

IP Addresses

readblueboxfree.com points to the four IP addresses 104.21.10.100, 172.67.162.184, 2606:4700:3031::ac43:a2b8 and 2606:4700:3035::6815:a64.

Two other host names, along with zlink.sk, climateaction.tech and fxhfast.com, also share IP numbers with readblueboxfree.com.

Name Servers

readblueboxfree.com is served by two delegated name servers, alberto.ns.cloudflare.com and nucum.ns.cloudflare.com.

readblueboxfree.com shares its NS records with other domains, for example narutocolored.org, torikomanga.online, thehouseinfatamorgana.online and two others.

There is at least partial name server overlap between readblueboxfree.com and other domains — laturizm.com, segucor.com, fendakejigupiao.com.cn and two more among them.

These name servers frequently co-occur with the name servers malavika.ns.cloudflare.com and nelly.ns.cloudflare.com.

DNS names with 6 IP addresses:

alberto.ns.cloudflare.com carries IP addresses 108.162.195.18, 162.159.44.18 and 172.64.35.18, with 3 other addresses beyond those.

nucum.ns.cloudflare.com carries IP addresses 108.162.194.145, 162.159.38.145 and 172.64.34.145, with 3 other addresses beyond those.

Mail Servers

The four mail servers for readblueboxfree.com are mx1-hosting.jellyfish.systems, mx2-hosting.jellyfish.systems, mx3-hosting.jellyfish.systems and _dc-mx.fa24cae1811c.readblueboxfree.com.

There is at least a partial MX overlap between readblueboxfree.com and other domains, including theroadtorecognition.com, hercurvescloset.com, nicolegilles.com and two others.

The hosts mx1-hosting.jellyfish.systems, mx2-hosting.jellyfish.systems, mx3-hosting.jellyfish.systems and _dc-mx.fa24cae1811c.readblueboxfree.com all resolve to exactly one IP address each: 162.255.118.28, 162.255.118.29, 162.255.118.13 and 45.134.226.148 respectively.

readblueboxfree.com - robtex.com