cssbook.net - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`cssbook.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:11ee^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:b2dc^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.17.238^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.178.220^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`burt.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b4f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`burt.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c14f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`burt.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:214f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`burt.ns.cloudflare.com`
		A	108.162.193.79^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`burt.ns.cloudflare.com`
		A	172.64.33.79^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`burt.ns.cloudflare.com`
		A	173.245.59.79^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`burt.ns.cloudflare.com`
NS	`edna.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a6d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`edna.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c06d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`edna.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:206d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`edna.ns.cloudflare.com`
		A	108.162.192.109^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`edna.ns.cloudflare.com`
		A	172.64.32.109^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`edna.ns.cloudflare.com`
		A	173.245.58.109^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`edna.ns.cloudflare.com`
MX	`_dc-mx.1bb1db7f3415.cssbook.net` ⭐
		A	185.199.108.153^{🇺🇸 Fastly185.199.108.0/24 GitHub - 185.199.108.0/24}
			PTR	`cdn-185-199-108-153.github.com`
TXT	`v=spf1 ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.17.238, 172.67.178.220
		IPv6 hints	2606:4700:3035::6815:11ee, 2606:4700:3037::ac43:b2dc
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=28, name=cloudflare-ech.com
SOA	`burt.ns.cloudflare.com`dns@cloudflare.com serial=2409503390

`net`

	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=1786925154

Same first word

cssbook.com

cssbook.ru

cssbook.pk

cssbook.net

cssbook.de

Similar names

sscbook.com

scbooks.org

scbooks.com.tw

scbooks.com

csbooks.com

bookcss.com

DNS History

18 records (7 active, 11 former)

●NSburt.ns.cloudflare.com2026-02-22 → 2026-08-17 · 3 obs

○ 2016-12-04 08:02:18
● 2026-02-22 12:36:44
● 2026-08-17 00:22:24

●NSedna.ns.cloudflare.com2026-02-22 → 2026-08-17 · 3 obs

○ 2016-12-04 08:02:18
● 2026-02-22 12:36:44
● 2026-08-17 00:22:24

○NSns1.fastpark.net2015-06-24 → 2015-10-31 · 4 obs

● 2015-06-24 16:02:04
● 2015-10-31 17:33:02
○ 2016-01-20 06:42:48
○ 2026-08-17 00:22:24

○NSns1.sedoparking.com2016-01-20 → 2016-04-21 · 5 obs

○ 2015-10-31 17:33:02
● 2016-01-20 06:42:48
● 2016-04-21 21:24:08
○ 2016-12-04 08:02:18
○ 2026-08-17 00:22:24

○NSns2.fastpark.net2015-06-24 → 2015-10-31 · 4 obs

● 2015-06-24 16:02:04
● 2015-10-31 17:33:02
○ 2016-01-20 06:42:48
○ 2026-08-17 00:22:24

○NSns2.sedoparking.com2016-01-20 → 2016-04-21 · 5 obs

○ 2015-10-31 17:33:02
● 2016-01-20 06:42:48
● 2016-04-21 21:24:08
○ 2016-12-04 08:02:18
○ 2026-08-17 00:22:24

●MX_dc-mx.1bb1db7f3415.cssbook.net2026-02-22 → 2026-08-17 · 3 obs

○ 2016-12-04 08:02:18
● 2026-02-22 12:36:44
● 2026-08-17 00:22:24

○MXmail.h-email.net2015-10-31 → 2015-10-31 · 3 obs

● 2015-10-31 17:33:02
○ 2016-01-20 06:42:48
○ 2026-08-17 00:22:24

○MXmail.nickstel.com2016-01-20 → 2016-04-21 · 5 obs

○ 2015-10-31 17:33:02
● 2016-01-20 06:42:48
● 2016-04-21 21:24:08
○ 2016-12-04 08:02:18
○ 2026-08-17 00:22:24

●A104.21.17.2382026-02-22 → 2026-08-17 · 3 obs

○ 2016-12-04 08:02:18
● 2026-02-22 12:36:44
● 2026-08-17 00:22:24

●A172.67.178.2202026-02-22 → 2026-08-17 · 3 obs

○ 2016-12-04 08:02:18
● 2026-02-22 12:36:44
● 2026-08-17 00:22:24

○A185.53.178.82015-10-31 → 2015-10-31 · 4 obs

○ 2015-06-24 16:02:04
● 2015-10-31 17:33:02
○ 2016-01-20 06:42:48
○ 2026-08-17 00:22:24

○A216.8.179.252015-06-24 → 2015-06-24 · 3 obs

● 2015-06-24 16:02:04
○ 2015-10-31 17:33:02
○ 2026-08-17 00:22:24

●A2606:4700:3035::6815:11ee2026-06-28 → 2026-08-17 · 3 obs

○ 2026-05-25 18:11:28
● 2026-06-28 18:46:58
● 2026-08-17 00:22:24

○A2606:4700:3035::ac43:b2dc2026-02-22 → 2026-05-25 · 5 obs

○ 2016-12-04 08:02:18
● 2026-02-22 12:36:44
● 2026-05-25 18:11:28
○ 2026-06-28 18:46:58
○ 2026-08-17 00:22:24

○A2606:4700:3037::6815:11ee2026-02-22 → 2026-05-25 · 5 obs

○ 2016-12-04 08:02:18
● 2026-02-22 12:36:44
● 2026-05-25 18:11:28
○ 2026-06-28 18:46:58
○ 2026-08-17 00:22:24

●A2606:4700:3037::ac43:b2dc2026-06-28 → 2026-08-17 · 3 obs

○ 2026-05-25 18:11:28
● 2026-06-28 18:46:58
● 2026-08-17 00:22:24

○A72.52.4.912016-01-20 → 2016-04-21 · 5 obs

○ 2015-10-31 17:33:02
● 2016-01-20 06:42:48
● 2016-04-21 21:24:08
○ 2016-12-04 08:02:18
○ 2026-08-17 00:22:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	f.gtld-servers.net, j.gtld-servers.net, i.gtld-servers.net, l.gtld-servers.net...	-
cssbook.net	edna.ns.cloudflare.com, burt.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.109

NS records: edna.ns.cloudflare.com, burt.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cssbook.net (unsigned zone)

⏱️ Timing

Total: 583ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.178.220, 104.21.17.238`
AAAA	2	`2606:4700:3035::6815:11ee, 2606:4700:3037::ac43:b2dc`
NS	2	`burt.ns.cloudflare.com, edna.ns.cloudflare.com`
MX	1	`_dc-mx.1bb1db7f3415.cssbook.net (pri: 10`
TXT	1	`v=spf1 ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`burt.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

cssbook.net resolves to four IP addresses: 104.21.17.238, 172.67.178.220, 2606:4700:3035::6815:11ee and 2606:4700:3037::ac43:b2dc.

Two other host names, along with www.arbiter-creative.com, abacus.abuse.printasy.com and getwellnaturally.info, also share IP numbers with cssbook.net.

Name Servers

cssbook.net uses two name servers for its delegation: burt.ns.cloudflare.com and edna.ns.cloudflare.com.

cssbook.net shares its NS records with other domains, for example ica-cm.org, sergix44.ovh, loliproject.com and two others.

cssbook.net shares at least some of its name servers with other domains, including guides-bricolage.fr, taklon.org, qdsnet.com and two others.

DNS names with 6 IP addresses:

Hostname burt.ns.cloudflare.com directs to 108.162.193.79, 172.64.33.79 and 173.245.59.79 along with 3 other IP addresses.

Hostname edna.ns.cloudflare.com directs to 108.162.192.109, 172.64.32.109 and 173.245.58.109 along with 3 other IP addresses.

Mail Servers

The sole mail server for cssbook.net is _dc-mx.1bb1db7f3415.cssbook.net.

_dc-mx.1bb1db7f3415.cssbook.net directs to just one IP number, 185.199.108.153.