etextbookuniversity.com - robtex.com
etextbookuniversity.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3034::6815:1361🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3034::ac43:b9bb🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.19.97Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.185.187🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | arely.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:26a4🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | arely.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2a4🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | arely.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22a4🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | arely.ns.cloudflare.com | ||||||
| A | 108.162.194.164🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | arely.ns.cloudflare.com | ||||||
| A | 162.159.38.164Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | arely.ns.cloudflare.com | ||||||
| A | 172.64.34.164🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | arely.ns.cloudflare.com | ||||||
| NS | cody.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3b6b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cody.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c16b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | cody.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:216b🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | cody.ns.cloudflare.com | ||||||
| A | 108.162.193.107🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cody.ns.cloudflare.com | ||||||
| A | 172.64.33.107🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cody.ns.cloudflare.com | ||||||
| A | 173.245.59.107🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cody.ns.cloudflare.com | ||||||
| MX | _dc-mx.7b7b7a2bf77a.etextbookuniversity.com ⭐ | ||||||
| A | 154.12.224.28🇺🇸 CONTABO-USA154.12.224.0/21 Route Registered for Cogent Communications Customer- Contabo Inc | ||||||
| PTR | vmi2448298.contaboserver.net | ||||||
| TXT | google-site-verification=ErVg_fJbg9gkQLq-hM30ra1OOyPtNrY-cXV36gxwFRw | ||||||
| TXT | v=spf1 a mx ip4:154.12.224.28 ~all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.19.97, 172.67.185.187 | ||||||
| IPv6 hints | 2606:4700:3034::6815:1361, 2606:4700:3034::ac43:b9bb | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=238, name=cloudflare-ech.com | ||||||
| SOA | arely.ns.cloudflare.comdns@cloudflare.com serial=2400498982 | ||||||
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.netnstld@verisign-grs.com serial=1776012537 | ||||||
Same first word
etextbookuniversity.com |
DNS History
7 records (7 active, 0 former)
●NSarely.ns.cloudflare.com2026-04-07 → 2026-04-12 · 2 obs
● 2026-04-12 17:09:38
●NScody.ns.cloudflare.com2026-04-07 → 2026-04-12 · 2 obs
● 2026-04-12 17:09:38
●MX_dc-mx.7b7b7a2bf77a.etextbookuniversity.com2026-04-07 → 2026-04-12 · 2 obs
● 2026-04-12 17:09:38
●A104.21.19.972026-04-07 → 2026-04-12 · 2 obs
● 2026-04-12 17:09:38
●A172.67.185.1872026-04-07 → 2026-04-12 · 2 obs
● 2026-04-12 17:09:38
●A2606:4700:3034::6815:13612026-04-07 → 2026-04-12 · 2 obs
● 2026-04-12 17:09:38
●A2606:4700:3034::ac43:b9bb2026-04-07 → 2026-04-12 · 2 obs
● 2026-04-12 17:09:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| etextbookuniversity.com | cody.ns.cloudflare.com, arely.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.193.107
NS records: cody.ns.cloudflare.com, arely.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for etextbookuniversity.com (unsigned zone)
⏱️ Timing
Total: 126ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.185.187, 104.21.19.97 |
| AAAA | 2 | 2606:4700:3034::6815:1361, 2606:4700:3034::ac43:b9bb |
| NS | 2 | arely.ns.cloudflare.com, cody.ns.cloudflare.com |
| MX | 1 | _dc-mx.7b7b7a2bf77a.etextbookuniversity. |
| TXT | 2 | google-site-verification=ErVg_fJbg9gkQLq, v=spf1 a mx ip4:154.12.224.28 ~all |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | arely.ns.cloudflare.com dns.cloudflare.c |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (cody.ns.cloudflare.com, cody.ns.cloudflare.com, cody.ns.cloudflare.com...)
Analysis
IP Addresses
etextbookuniversity.com resolves to four IPs: 2606:4700:3034::6815:1361, 2606:4700:3034::ac43:b9bb, 104.21.19.97 and 172.67.185.187.
Other host names, for instance mkmicky.com, jianbaozhai.com.cn, www.surecheckup.com, yildizfatih.com and irlinux02.sirvangroup.com share IP numbers with etextbookuniversity.com.
Name Servers
etextbookuniversity.com has two name servers: arely.ns.cloudflare.com and cody.ns.cloudflare.com.
etextbookuniversity.com shares the same name server setup as other domains, for example etextbookdeal.com, univebook.com, ebookforstudy.com, mycollegeebook.com and discountpdf.com.
etextbookuniversity.com shares some name servers with other domains, for example sotirispetalas.com, webchile.net, soppandsopp.co.uk, listen.us.com and salomvar.hu.
These name servers are often used together with lucy.ns.cloudflare.com, tanner.ns.cloudflare.com and yew.ns.cloudflare.com.
Host names with six IP numbers: arely.ns.cloudflare.com points to: 2606:4700:50::a29f:26a4, 2803:f800:50::6ca2:c2a4, 2a06:98c1:50::ac40:22a4, 108.162.194.164, 162.159.38.164 and 172.64.34.164; cody.ns.cloudflare.com points to: 2606:4700:58::adf5:3b6b, 2803:f800:50::6ca2:c16b, 2a06:98c1:50::ac40:216b, 108.162.193.107, 172.64.33.107 and 173.245.59.107.
Mail Servers
etextbookuniversity.com is handled by a single mail server, _dc-mx.7b7b7a2bf77a.etextbookuniversity.com.
Host name _dc-mx.7b7b7a2bf77a.etextbookuniversity.com points to IP 154.12.224.28.