hypertextbook.com - dns.ninja

hypertextbook.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:889b🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:56c8🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.86.200Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.136.155🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScleo.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b59🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcleo.ns.cloudflare.com
A2803:f800:50::6ca2:c159🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcleo.ns.cloudflare.com
A2a06:98c1:50::ac40:2159🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcleo.ns.cloudflare.com
A108.162.193.89🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcleo.ns.cloudflare.com
A172.64.33.89🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcleo.ns.cloudflare.com
A173.245.59.89🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcleo.ns.cloudflare.com
NStina.ns.cloudflare.com
A2606:4700:50::adf5:3ae6🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtina.ns.cloudflare.com
A2803:f800:50::6ca2:c0e6🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtina.ns.cloudflare.com
A2a06:98c1:50::ac40:20e6🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtina.ns.cloudflare.com
A108.162.192.230🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtina.ns.cloudflare.com
A172.64.32.230🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtina.ns.cloudflare.com
A173.245.58.230🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtina.ns.cloudflare.com
MXnyc007.hawkhost.com ⭐
A172.96.186.143🇺🇸 SINGLEHOP172.96.186.0/24
PTRnyc007.arandomserver.com
TXTgoogle-site-verification=HMDSfCREJrwYN7NeG97Fdh-733OIEElTx2mVO9T5B2s
TXTv=spf1 +a +mx +ip4:172.96.186.143 +include:_spf.arandomserver.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.86.200, 172.67.136.155
IPv6 hints2606:4700:3030::ac43:889b, 2606:4700:3034::6815:56c8
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=51, name=cloudflare-ech.com
SOAcleo.ns.cloudflare.comdns@cloudflare.com serial=2407028574

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1783157931
rank #31466 globally
rank #15501 in the tld
WOT: SAFE (94/100)
📈 Tranco rank: #129,050

Previously MX for

hypertextbook.com

Same first word

hypertextbook.com

DNS History

17 records (7 active, 10 former)

20162017201820192020202120222023202420252026NScleo.ns.cloudflare.comtina.ns.cloudflare.comns5.hawkhost.comns6.hawkhost.comMXnyc007.hawkhost.comhypertextbook.comA104.21.86.200172.67.136.1552606:4700:3030::ac43:889b2606:4700:3034::6815:56c8172.96.187.211188.114.96.0188.114.97.0198.252.100.462606:4700:3037::6815:56c82a06:98c1:3120::2a06:98c1:3121::
●NScleo.ns.cloudflare.com2026-02-18 → 2026-07-04 · 3 obs
○ 2021-06-18 22:23:48
● 2026-02-18 14:28:36
● 2026-07-04 09:41:50
○NSns5.hawkhost.com2015-08-22 → 2021-06-18 · 4 obs
● 2015-08-22 16:11:12
● 2021-06-18 22:23:48
○ 2026-02-18 14:28:36
○ 2026-07-04 09:41:50
○NSns6.hawkhost.com2015-08-22 → 2021-06-18 · 4 obs
● 2015-08-22 16:11:12
● 2021-06-18 22:23:48
○ 2026-02-18 14:28:36
○ 2026-07-04 09:41:50
●NStina.ns.cloudflare.com2026-02-18 → 2026-07-04 · 3 obs
○ 2021-06-18 22:23:48
● 2026-02-18 14:28:36
● 2026-07-04 09:41:50
○MXhypertextbook.com2015-08-22 → 2021-06-18 · 4 obs
● 2015-08-22 16:11:12
● 2021-06-18 22:23:48
○ 2026-02-18 14:28:36
○ 2026-07-04 09:41:50
●MXnyc007.hawkhost.com2026-02-18 → 2026-07-04 · 3 obs
○ 2021-06-18 22:23:48
● 2026-02-18 14:28:36
● 2026-07-04 09:41:50
●A104.21.86.2002026-02-18 → 2026-07-04 · 11 obs
○ 2021-06-18 22:23:48
● 2026-02-18 14:28:36
○ 2026-03-21 12:42:10
● 2026-03-25 00:38:42
● 2026-04-12 00:15:52
○ 2026-05-25 20:58:06
○ 2026-06-02 06:41:20
● 2026-06-02 15:01:28
○ 2026-06-30 08:22:18
● 2026-07-03 14:56:02
● 2026-07-04 09:41:50
●A172.67.136.1552026-02-18 → 2026-07-04 · 11 obs
○ 2021-06-18 22:23:48
● 2026-02-18 14:28:36
○ 2026-03-21 12:42:10
● 2026-03-25 00:38:42
● 2026-04-12 00:15:52
○ 2026-05-25 20:58:06
○ 2026-06-02 06:41:20
● 2026-06-02 15:01:28
○ 2026-06-30 08:22:18
● 2026-07-03 14:56:02
● 2026-07-04 09:41:50
○A172.96.187.2112021-06-18 → 2021-06-18 · 4 obs
○ 2016-08-08 06:54:52
● 2021-06-18 22:23:48
○ 2026-02-18 14:28:36
○ 2026-07-04 09:41:50
○A188.114.96.02026-03-21 → 2026-06-30 · 10 obs
○ 2026-02-18 14:28:36
● 2026-03-21 12:42:10
○ 2026-03-25 00:38:42
○ 2026-04-12 00:15:52
● 2026-05-25 20:58:06
● 2026-06-02 06:41:20
○ 2026-06-02 15:01:28
● 2026-06-30 08:22:18
○ 2026-07-03 14:56:02
○ 2026-07-04 09:41:50
○A188.114.97.02026-03-21 → 2026-06-30 · 10 obs
○ 2026-02-18 14:28:36
● 2026-03-21 12:42:10
○ 2026-03-25 00:38:42
○ 2026-04-12 00:15:52
● 2026-05-25 20:58:06
● 2026-06-02 06:41:20
○ 2026-06-02 15:01:28
● 2026-06-30 08:22:18
○ 2026-07-03 14:56:02
○ 2026-07-04 09:41:50
○A198.252.100.462015-08-22 → 2016-08-08 · 4 obs
● 2015-08-22 16:11:12
● 2016-08-08 06:54:52
○ 2021-06-18 22:23:48
○ 2026-07-04 09:41:50
●A2606:4700:3030::ac43:889b2026-02-18 → 2026-07-04 · 11 obs
○ 2021-06-18 22:23:48
● 2026-02-18 14:28:36
○ 2026-03-21 12:42:10
● 2026-03-25 00:38:42
● 2026-04-12 00:15:52
○ 2026-05-25 20:58:06
○ 2026-06-02 06:41:20
● 2026-06-02 15:01:28
○ 2026-06-30 08:22:18
● 2026-07-03 14:56:02
● 2026-07-04 09:41:50
●A2606:4700:3034::6815:56c82026-07-03 → 2026-07-04 · 3 obs
○ 2026-06-30 08:22:18
● 2026-07-03 14:56:02
● 2026-07-04 09:41:50
○A2606:4700:3037::6815:56c82026-02-18 → 2026-06-02 · 10 obs
○ 2021-06-18 22:23:48
● 2026-02-18 14:28:36
○ 2026-03-21 12:42:10
● 2026-03-25 00:38:42
● 2026-04-12 00:15:52
○ 2026-05-25 20:58:06
○ 2026-06-02 06:41:20
● 2026-06-02 15:01:28
○ 2026-06-30 08:22:18
○ 2026-07-04 09:41:50
○A2a06:98c1:3120::2026-03-21 → 2026-06-30 · 10 obs
○ 2026-02-18 14:28:36
● 2026-03-21 12:42:10
○ 2026-03-25 00:38:42
○ 2026-04-12 00:15:52
● 2026-05-25 20:58:06
● 2026-06-02 06:41:20
○ 2026-06-02 15:01:28
● 2026-06-30 08:22:18
○ 2026-07-03 14:56:02
○ 2026-07-04 09:41:50
○A2a06:98c1:3121::2026-03-21 → 2026-06-30 · 10 obs
○ 2026-02-18 14:28:36
● 2026-03-21 12:42:10
○ 2026-03-25 00:38:42
○ 2026-04-12 00:15:52
● 2026-05-25 20:58:06
● 2026-06-02 06:41:20
○ 2026-06-02 15:01:28
● 2026-06-30 08:22:18
○ 2026-07-03 14:56:02
○ 2026-07-04 09:41:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comc.gtld-servers.net, m.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net...-
hypertextbook.comcleo.ns.cloudflare.com, tina.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.230

NS records: cleo.ns.cloudflare.com, tina.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hypertextbook.com (unsigned zone)

⏱️ Timing

Total: 1914ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.136.155, 104.21.86.200
AAAA22606:4700:3030::ac43:889b, 2606:4700:3034::6815:56c8
NS2cleo.ns.cloudflare.com, tina.ns.cloudflare.com
MX1nyc007.hawkhost.com (pri: 0)
TXT2google-site-verification=HMDSfCREJrwYN7N, v=spf1 +a +mx +ip4:172.96.186.143 +inclu
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1cleo.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

hypertextbook.com resolves to four IP addresses: 104.21.86.200, 172.67.136.155, 2606:4700:3030::ac43:889b and 2606:4700:3034::6815:56c8.

Among the host names that share IP numbers with hypertextbook.com are smashingred.com, corriganmotors.com, www.jtdxzz.com and two others.

Name Servers

hypertextbook.com has two authoritative name servers — cleo.ns.cloudflare.com and tina.ns.cloudflare.com.

hypertextbook.com has the same name server delegation as a number of other domains, such as javiervalles.com.mx, seaislandseminolecup.com, seaislandmembers.com and two more.

hypertextbook.com shares at least some of its name servers with other domains, including vernlewis.com, midamericanstudio.com, foodforprogress.com and two others.

These name servers are frequently paired with the name servers dalary.ns.cloudflare.com and seth.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

cleo.ns.cloudflare.com points to 108.162.193.89, 172.64.33.89, 173.245.59.89 and 3 other IP addresses.

tina.ns.cloudflare.com points to 108.162.192.230, 172.64.32.230, 173.245.58.230 and 3 other IP addresses.

Mail Servers

hypertextbook.com routes its mail through a single mail server, nyc007.hawkhost.com.

hypertextbook.com and domains like stechie.com share an identical mail server configuration.

nyc007.hawkhost.com points to one IP number — 172.96.186.143.