zybook | Build Confidence and Save Time With Interactive


zyBook dynamically illustrate difficult concepts via animations. To aid with the retention of concepts, zyBooks incorporates a huge number of questions throughout the text.

What is a zyBook code?

A zyBook code remarkably distinguishes a specific zyBook, commonly relating to a particular class presenting at a school. Educators can blend and design zyBook content, so every class’ zyBook might be interesting. Normally, educators give their class’ one of a kind zyBook code in a prospectus or in a class declaration. 

Domain Name – www.zybooks.com

WhoIs Information
Registered : No
Domain age : 14 Years 8 Months 6 Days
Tech email : tech-6032449@zybooks.com.whoisprivacyservice .org
Name servers : ns-517.awsdns-00.net
Created at : 20-Jan-2008
Changed at : 17-Mar-2021
Expire at : 20-Jan-2026
Registrant name : On behalf of zybooks.com owner
Admin name : On behalf of zybooks.com administrative contact
Registrant country : US
Admin country : U
Registrant phone : +1.2065771368
Admin phone : +1.2065771368
Moz information
Subdomain normalized : 0
Subdomain raw : 0
Url normalized : 0
Url raw : 0
Http status code : 0
Domain authority : 0
Page authority : 0
External quality link : 0
Links : 0
Link information
Backlink count : 0
Total link count : 0
Mozrank : 0

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Performance : 31.37 

Emulated Form Factor Mobile
Locale En-US
Category Performance

Field Data 

Over the last 30 days, the field data shows that this page has an Moderate speed compared to other pages in the Chrome User Experience Report. We are showing The 75th percentile of FCP and The 95th percentile of FID

First Contentful Paint (FCP) 

1318 ms 

Metric Category 


First Input Delay (FID) 

13 ms 

Metric Category 


Overall Category 



Origin Summary 

All pages served from this origin have a Slow speed compared to other pages in the Chrome User Experience Report Over the last 30 days.To view suggestions tailored to each page, analyze individual page URLs.

Related Keywords

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1334 ms 

Metric Category 


First Input Delay (FID) 

13 ms 

Metric Category 


Overall Category 


Lab Data 

First Contentful Paint 

First Contentful Paint marks the time at which the first text or image is painted. Learn more 

2.9 s 

First Meaningful Paint 

First Meaningful Paint measures when the primary content of a page is visible. Learn more 

2.9 s 

Speed Index 

Speed Index shows how quickly the contents of a page are visibly populated. Learn more 

6.9 s 

First CPU Idle 

First CPU Idle marks the first time at which the page`s main thread is quiet enough to handle input. Learn more 

Time to Interactive 

Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more 11.4 s 

Max Potential First Input Delay 

The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task. Learn more 

460 ms

Audit Data 

Keep request counts low and transfer sizes small 

To set budgets for the quantity and size of page resources, add a budget.json file. Learn More 35 requests • 1,172 KiB 

Eliminate render-blocking resources 

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. Learn More 

Potential savings of 280 ms 

Efficiently encode images 

Optimized images load faster and consume less cellular data. Learn More 

Enable text compression 

Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. Learn More 

Serve static assets with an efficient cache policy 

A long cache lifetime can speed up repeat visits to your page. Learn More 

7 resources found 

Minimize third-party usage 

Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. Learn More 

Third-party code blocked the main thread for 240 ms 

Network Round Trip Times 

Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it’s an indication that servers closer to the user could improve performance. Learn More 

0 ms 

First Contentful Paint (3G) 

First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network. Learn More 5561 ms

Total Blocking Time 

Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. 820 ms 

Reduce JavaScript execution time 

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn More 

1.9 s 

Defer offscreen images 

Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. Learn More 

Server Backend Latencies 

Server latencies can impact web performance. If the server latency of an origin is high, it’s an indication the server is overloaded or has poor backend performance. Learn More 

0 ms 

Properly size images 

Serve images that are appropriately-sized to save cellular data and improve load time. Learn More 

Reduce unused CSS 

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn More 

Potential savings of 117 KiB 

Avoids enormous network payloads 

Large network payloads cost users real money and are highly correlated with long load times. Learn More Total size was 1,172 KiB 

Minimize main-thread work 

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn More 

4.2 s 

Avoid chaining critical requests 

The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load. Learn More

2 chains found 

Avoids enormous network payloads 

A large DOM will increase memory usage, cause longer Learn More 

1,090 elements 

Avoid multiple page redirects 

Redirects introduce additional delays before the page can be loaded. Learn More 

Potential savings of 1,260 ms 

Minify JavaScript 

Minifying JavaScript files can reduce payload sizes and script parse time. Learn More 

User Timing marks and measures 

Consider instrumenting your app with the User Timing API to measure your app’s real-world performance during key user experiences. Learn More

IP Information
ISP : AS396982 Google LLC
Ip :
City : The Dalles
Region : Oregon
Timezone : America/Los_Angeles
Latitude : 45.5946
Longitude : -121.1787
Sites in Same IP
1. explorenorthga.com
2. youngerpartners.com
Malware Scan Info
Google safe browser norton : undefined API
Norton : safe
Search Engine Index Info
Google index : 266
Bing index : 0
Yahoo index : About 16 search
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Keyword & Meta Information – www.zybooks.com 

Title zyBooks – Build Confidence and Save Time With Interactive Textbooks
Viewport width=device-width, initial-scale=1
Robots index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1


Replace your textbook with an interactive zyBook. Proven to drive success and save instructors

time with auto-generated, auto-graded textbook replacements. 

Twitter:card summary
Twitter:site @zyBooks
Twitter:label1 Est. reading time
Twitter:data1 18 minutes

Blocked by robots.txt : No Blocked by meta-robots : No Links nofollowed by meta-robots : No Total keywords : 756

Html headings
No h1 tag found
1. Student confidence is growing.
2. More action with less text.
3. Try it for yourself.
4. Check one out for free.
5. See how our system works.
No h3 tag found
1. Student Performance
2. Least-prepared students
3. Student letter grades
No h5 tag found
No h6 tag found
== Single word keywords ==
zyBooks 18 2.381 % No
students 13 1.72 % No
Student 10 1.323 % No
learning 0.794 % No
zyBook 0.794 % No
text 0.794 % No
concepts 0.661 % No
interactive 0.661 % No
University 0.661 % No
Request 0.661 % No
Engineering 0.661 % No
Research 0.661 % No
questions 0.529 % No
Students 0.529 % No
Instructors 0.529 % No
free 0.529 % Yes
Math 0.529 % No
Science 0.529 % No
Stories 0.529 % No
Instructor 0.529 % No
== Two words keywords ==
Link to 0.397 % No
as much 0.397 % No
me and 0.397 % No
University of 0.397 % No
and I 0.397 % No
with zyBooks 0.397 % No
questions and 0.397 % No
to Research 0.397 % No
zyBooks Link 0.265 % No
Student Survey 0.265 % No
the power 0.265 % No
to see 0.265 % No
About Us 0.265 % No
a zyBook 0.265 % No
for free 0.265 % No
with a 0.265 % No
Getting Started 0.265 % No
students learn 0.265 % No
a Demo 0.265 % No
Stories Student 0.265 % No
== Three words keywords ==
Link to Research 0.397 % No
z library0.397 % No
zyBooks Link to 0.265 % No
to Research Student 0.265 % No
Request a Demo 0.265 % No
zyBooks has been 0.132 % No
tools responsive questions 0.132 % No
zyBooks combine the 0.132 % No
combine the power 0.132 % No
the power of 0.132 % No
power of interactive 0.132 % No
of interactive tools 0.132 % No
interactive tools responsive 0.132 % No
and animations to 0.132 % No
responsive questions and 0.132 % No
questions and animations 0.132 % No
for yourself zyBooks 0.132 % No
animations to provide 0.132 % No
to provide students 0.132 % No
provide students with 0.132 % No
== Four words keywords ==
zyBooks Link to Research 0.265 % No
Link to Research Student 0.265 % No
responsive questions and animations 0.132 % No
yourself zyBooks combine the 0.132 % No
zyBooks combine the power 0.132 % No
combine the power of 0.132 % No
the power of interactive 0.132 % No
power of interactive tools 0.132 % No
of interactive tools responsive 0.132 % No
interactive tools responsive questions 0.132 % No
tools responsive questions and 0.132 % No
and animations to provide 0.132 % No
questions and animations to 0.132 % No
it for yourself zyBooks 0.132 % No
animations to provide students 0.132 % No
to provide students with 0.132 % No
provide students with a 0.132 % No
students with a rich 0.132 % No
with a rich learning 0.132 % No
a rich learning experience 0.132 % No

Alexa Information – www.zybooks.com

General information
Domain name : www.zybooks.com Global Rank : No data
Daily Time on Site : No data Search Traffic : No data
Bounce Rate : No data Total sites link in : No data
Top 5 similar sites by audience overlap
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Top 5 keywords by traffic
Keywords Search Traffic Share of voice
No data found!
Top 4 keyword gaps
Keywords driving traffic to competitors, but not to this site Avg. traffic to competitors Search popularity
No data found!
Top 4 easy-to-rank keywords
Popular keywords within this site`s competitive powerRelevance to this site Search popularity
No data found!
Top 4 buyer keywords
Keywords that show a high purchase intent Avg. traffic to competitors Organic competition
No data found!
Top 4 optimization opportunities
Very popular keywords already driving some traffic to this site Search popularity Organic share of voice
No data found!
Top 5 referral sites
Sites by how many other sites drive traffic to them Referral sites
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Site flow
Visited just before & right after domain Visited just before & right after domain percentage
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Top 5 audience overlap
Similar sites to this site Site’s overlap score Alexa rank
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Top 3 audience geography
Visitors by country Visitors by country percentage
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