hostinfo

zybooks.com

—

Overview

IP	104.199.123.136
Hosted Country	United States
Provider	—
Registration Date	2008-01-20 (18 years 8 months ago)
Expiration Date	0000-00-00
Registrar	AMAZON REGISTRAR, INC.
Safe Browsing	No risk issues
PageSpeed Score	Check PageSpeed →
Speed test	Run speed test →

Last analysis: 2019-02-11 02:00:50 (7 years 7 months ago)

Update is temporarily locked — you can refresh again after the cooldown.

Traffic

Global rank	#34,634
Est. monthly visits	1,346,280
Daily Unique Visitors	44,876
Daily Pageviews	269,256

Global rank from public popularity lists; visits are a model estimate, not measured panel traffic.

Search Engine Backlinks

Referring domains	—
Link authority	—
Graph rank	—

Referring-domain totals come from the public Common Crawl graph (full page/anchor index like Ahrefs is paid-only). Linking pages and anchor texts below are a live web sample.

Security

SSL Certificate	Refresh to collect SSL data
Security Headers	—
Email Authentication	—

DNS

A	104.199.123.136
NS	ns-1666.awsdns-16.co.uk
NS	ns-1032.awsdns-01.org
NS	ns-196.awsdns-24.com
NS	ns-517.awsdns-00.net
SOA	ns-517.awsdns-00.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
MX	20 alt1.aspmx.l.google.com
MX	40 aspmx2.googlemail.com
MX	10 aspmx.l.google.com
MX	50 aspmx3.googlemail.com
MX	30 alt2.aspmx.l.google.com
TXT	v=spf1 include:mail.zendesk.com include:_spf.google.com include:mailgun.org include:mktomail.com include:servers.mcsv.net ~all
TXT	google-site-verification=TezSwO5Ql-ozjHjMix9mS3HQhVTVg3niVeD760qM-Ok

HTTP Header Analysis

Http-Version	1.1
Status-Code	200
Status	200 OK
Server	nginx
Date	Mon, 11 Feb 2019 02:00:21 GMT
Content-Type	text/html; charset=UTF-8
Transfer-Encoding	chunked
Connection	keep-alive
Keep-Alive	timeout=20
Link	<https://www.zybooks.com/>; rel=shortlink
WPE-Backend	apache
X-Cacheable	SHORT
Vary	Accept-Encoding,Cookie
Cache-Control	max-age=600, must-revalidate
X-Cache	HIT: 69
X-Pass-Why
X-Cache-Group	normal
X-Type	default
Content-Encoding	gzip

WHOIS

Registrar	AMAZON REGISTRAR, INC.
Registration Date	2008-01-20 (18 years 8 months ago)
Updated	2017-01-04
Expiration Date	0000-00-00
Status	—
Name servers	ns-1032.awsdns-01.org, ns-1666.awsdns-16.co.uk, ns-196.awsdns-24.com, ns-517.awsdns-00.net

Domain Name: ZYBOOKS.COM
Registry Domain ID: 1383977084_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.registrar.amazon.com
Registrar URL: http://registrar.amazon.com
Updated Date: 2017-01-04T05:19:48Z
Creation Date: 2008-01-20T19:36:24Z
Registry Expiry Date: 2026-01-20T19:36:24Z
Registrar: Amazon Registrar, Inc.
Registrar IANA ID: 468
Registrar Abuse Contact Email:
Registrar Abuse Contact Phone:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS-1032.AWSDNS-01.ORG
Name Server: NS-1666.AWSDNS-16.CO.UK
Name Server: NS-196.AWSDNS-24.COM
Name Server: NS-517.AWSDNS-00.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2019-02-11T02:00:25Z

Technology & delivery

Server	—
CMS	—
CDN	—
TTFB	—
Web Archive	web.archive.org/web/*/zybooks.com
Robots / Sitemap	—

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