SEO report of zybooks.com
Home - zyBooks
www.zybooks.com/
Replace your textbook with an interactive zyBook. Proven to drive success and save instructors time with auto-generated, auto-graded textbook replacements.
Tasks
- Avoid using deprecated HTML tags.
SEO
URL
Domain : www.zybooks.com/
Character length : 16
Title
Home - zyBooks
Description
Replace your textbook with an interactive zyBook. Proven to drive success and save instructors time with auto-generated, auto-graded textbook replacements.
Keywords (meta keywords)
Good! The website does not use “meta keywords”.
Open Graph Protocol
Good! The OG (Open Graph) protocol is set on this website.
locale: en_US
type: website
title: Home - zyBooks
description: Replace your textbook with an interactive zyBook. Proven to drive success and save instructors time with auto-generated, auto-graded textbook replacements.
url: http://www.zybooks.com/
site_name: zyBooks
Dublin Core
Dublin Core is not used
Underscores in the URLs
Good! No underscore (_) found in the URLs.
Search engine friendly URLs
Good! The website uses SEO friendly URLs.
Checking the robots.txt file
There is robots.txt file.
https://zybooks.com/robots.txt
https://zybooks.com/robots.txt
| User-agent | Disallowed for the search engines |
|---|---|
| * |
|
Social
Social Engagement
Linkedin4
Facebook Share0
Facebook Comments0
Content
Doctype
HTML 5
Encoding
Perfect! The character encoding is set: UTF-8.
Language
We have found the language localisation: ”en”.
Title
Home - zyBooks
Character length : 14
Good! The title’s length is between 10 and 70 characters.
Character length : 14
Good! The title’s length is between 10 and 70 characters.
Text / HTML ratio
Ratio : 1%
Error! The text / HTML code ratio is under 15 percent on this website. This value shows that the website has relatively few text content.
Error! The text / HTML code ratio is under 15 percent on this website. This value shows that the website has relatively few text content.
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
|---|---|---|---|---|---|
| 6 | 0 | 0 | 3 | 0 | 0 |
Heading structure in the source code
- <H1>
- <H1> Try it for yourself.
- <H1> See how our system works.
- <H1> Check one out for free.
- <H1> More action with less text.
- <H4> Student Performance
- <H4> Least-prepared students
- <H4> Student letter grades
- <H1> The solution is here.
Word cloud
- zybooks21
- students15
- learning7
- text6
- zybook6
- interactive6
- questions5
- instructor4
- research4
- catalog4
- free4
- animations4
- time4
- less3
- see3
- learn3
- try3
- help3
- tools3
- concepts3
- using3
- account3
- create3
- instructors3
- sign3
- news3
- courseware3
- pricing3
- volume2
- program2
- between2
- performance2
- spend2
- content2
- improved2
- university2
- just2
- how2
- contains2
- email2
- exercises2
- start2
- online2
- work2
- get2
- right2
- best2
- embedded2
- schedule2
- success2
- proven2
- textbooks2
- demo2
- coding2
- code2
- concise2
- class2
- chapter2
- power2
- traditional2
Keyword matrix
| word | title | descriptions | heading |
|---|---|---|---|
| zybooks | |||
| students | |||
| learning | |||
| text | |||
| zybook | |||
| interactive |
Two Word cloud
- using zybooks2
- interactive tools2
- embedded coding2
- students learn2
- why zybooks2
- pricing news2
404 Page
The website has a 404 error page.
Flash content
Good! The website does not have any flash contents.
Frame
Error! The website uses iFrame solutions. This type of contents are not indexed by Google.
Images
We found 8 images on this web page.
Alternate attributes for the following 7 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.
Alternate attributes for the following 7 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.
- http://www.zybooks.com/.. /binary-tool-preview-1-e1481230656813.jpg...
- http://www.zybooks.com/.. /iphone-tool-preview-e1481242937260.jpg
- http://www.zybooks.com/wp-content/uploads/2016/05/questions-temp.jpg
- http://www.zybooks.com/.. /embedded-coding-tools-temp.png
- http://www.zybooks.com/.. /Data-Structures-Essentials.png
- http://www.zybooks.com/.. /Programming-in-Java.png
- http://www.zybooks.com/.. /Programming-in-C.png
Readability
Flesch–Kincaid Grade Level
4.90
Flesch Reading Ease
71.00
Coleman Liau Index
12.00
Automated Readability Index (ARI)
4.20
Dale–Chall Readability
7.40
SMOG Index
8.40
Spache Readibility
5.00
Number of letters
3849
Number of words
804
Number of sentences
131
Average words per sentences
6
Number of syllables
1232
Syllables in words
1254
Average syllables in words
1.53
Number of words in first three syllables
107
Percentage of word / syllables
13.31
Words not in Dale-Chall easy-word list
361
Words not in Spache easy-word list
213
Technologies
Deprecated HTML elements
Good! No deprecated HTML tags are detected.
Redirection (www / not www)
Good! The web address is accessible only in one version. The version without www is redirected to the version with www.
Deprecated HTML elements
Good! No deprecated HTML tags are detected.
Printability
Suggestion! Unfortunately, no printer-friendly CSS found.
Meta Tag (viewport tag, mobile devices)
Error! The meta tag named viewport is missing.
Speed test
Server response time
The server response time is fast enough.
Table layout
Good! No nested tables found.
Number of HTTP resources
81
Number of source domains
21
Render blocking resources
The elements below are blocking the “above the fold” rendering.
List of render blocking javascript files
List of render blocking javascript files
- https://www.zybooks.com/.. /jquery.min.js?ver=2.2.1
- https://www.zybooks.com/.. /ga-scroll-events.js?ver=2.5.1
- https://www.zybooks.com/.. /frontend.js?ver=7.0.9
- https://www.zybooks.com/.. /svg-inline-min.js?ver=1.0.0
- https://www.zybooks.com/.. /zybooks-all-scripts.js?ver=1.0
- https://www.zybooks.com/.. /slick.css?ver=4.9.8
- https://www.zybooks.com/.. /style.css?ver=4.9.8
- https://fonts.googleapis.com/css?family=Roboto%3A100%2C100italic%2C30...
- https://www.zybooks.com/.. /formreset.min.css?ver=2.0.7
- https://www.zybooks.com/.. /formsmain.min.css?ver=2.0.7
- https://www.zybooks.com/.. /readyclass.min.css?ver=2.0.7
- https://www.zybooks.com/.. /browsers.min.css?ver=2.0.7
Speed test – Javascript
Javascript
Error! Too many javascript files found which slows down the page load on the website.
- http://www.zybooks.com/wp-content/themes/zybooks/assets/vendor/jquery/dist/jquery.min.js?ver=2.2.1
- http://www.zybooks.com/wp-content/plugins/svg-support/js/min/svg-inline-min.js?ver=1.0.0
- http://www.zybooks.com/wp-content/themes/zybooks/assets/js/zybooks-all-scripts.js?ver=1.0
- http://www.zybooks.com/wp-includes/js/wp-embed.min.js?ver=4.7.4
- http://www.zybooks.com/wp-content/plugins/gravityforms/js/jquery.json.js?ver=2.0.7
- http://www.zybooks.com/wp-content/plugins/gravityforms/js/gravityforms.min.js?ver=2.0.7
- http://www.zybooks.com/wp-content/plugins/gravityforms/js/placeholders.jquery.min.js?ver=2.0.7
File size of all javascript files combined
3.55MB
Javascript minifying
You can save 4KB (43% compression) on the analysed URL by minifying the javascript files.
Speed test – CSS
CSS
Error! Too many CSS files detected that slows down the page load.
- http://www.zybooks.com/wp-content/themes/zybooks/assets/vendor/slick/slick.css?ver=4.7.4
- http://www.zybooks.com/wp-content/themes/zybooks/assets/css/style.css?ver=4.7.4
- http://www.zybooks.com/wp-content/plugins/gravityforms/css/formreset.min.css?ver=2.0.7
- http://www.zybooks.com/wp-content/plugins/gravityforms/css/formsmain.min.css?ver=2.0.7
- http://www.zybooks.com/wp-content/plugins/gravityforms/css/readyclass.min.css?ver=2.0.7
- http://www.zybooks.com/wp-content/plugins/gravityforms/css/browsers.min.css?ver=2.0.7
File size of all css files combined
947.25KB
CSS minifying
You can save 134B (37% compression) on the analysed URL by minifying the CSS files.
- By minifying https://use.fontawesome.com/f0e09727c2.css you can save 134B (37% compression rate)
Speed test – Compression
Uncompressed size of the of the HTML
347.92KB
Gzip compression
Error! By using Gzip you can save 847B (61% compression) on your site.
- By compressing https://dp1zl9pdqnt0i.cloudfront.net/_636399319655020318_53843.css you can save 847B (61% compression rate)
- By compressing https://www.zybooks.com/.. /svg-inline-min.js?ver=1.0.0 you can save 219B (43% compression rate)
Speed test – Browser cache
Number of static resources (image, JS, CSS)
59
Browser cache
The browser cache is not set correctly for all elements.
| URL | Duration |
|---|---|
| https://dp1zl9pdqnt0i.cloudfront.net/_636399319655020318_53843.css | Expiry time is not specified |
| https://munchkin.marketo.net/munchkin.js | Expiry time is not specified |
| https://cdn.oribi.io/XzY0NzMxNTUwOA/oribi.js | 60 seconds |
| https://www.google-analytics.com/plugins/ua/linkid.js | 60 minutes |
| https://static.scheduleonce.com/mergedjs/ScheduleOnceEmbed.js | 2 hours |
| https://www.google-analytics.com/analytics.js | 2 hours |
Speed test – Images
File size of all images combined
351.76KB
Image optimisation
You can save 52.4KB (31% compression) by optimising the images below:
- By lossless compressing the https://www.zybooks.com/.. /Data-Structures-Essentials.png you can save 16.9KB (39%) data.
- By lossless compressing the https://www.zybooks.com/.. /Programming-in-Java.png you can save 15KB (32%) data.
- By lossless compressing the https://www.zybooks.com/.. /Programming-in-C.png you can save 12KB (33%) data.
- By lossless compressing the https://www.zybooks.com/.. /newhero-photo2a-cropped-b-600x257.jpg you can save 4.3KB (25%) data.
- By lossless compressing the https://www.zybooks.com/.. /iphone-tool-preview-e1481242937260.jpg you can save 1.9KB (13%) data.
- By lossless compressing the https://www.zybooks.com/.. /binary-tool-preview-1-e1481230656813.jpg... you can save 1.3KB (20%) data.
- By lossless compressing the https://cdn.scheduleonce.com/images/ncf_Lightbox@2x.png you can save 795B (51%) data.
- By lossless compressing the https://i.vimeocdn.com/video/504658268.jpg?mw=80&q=85 you can save 193B (12%) data.
Links
We found a total of 33 different links.
Internal links: 26
External links: 7
Internal links: 26
External links: 7
External links:
| Link text (anchor) | Link strength |
|---|---|
| Sign In | |
| Create Account | |
| Create an account | |
| sign in | |
| Get Your Trial | |
| https://twitter.com/zyBooks | |
| https://www.facebook.com/zyBooks |
Internal links:
Website security
IP
104.199.123.136
External hidden links
Good! No hidden external links found
Looking for eval()
Good! No eval(bas64_decode()) scripts are found
Checking for XSS vulnerability
No XSS vulnerability found
Email encryption
Good! We have not found any unencrypted email addresses.
Sites on same ip
Icons
Favicon
Good! The website uses favicon.
Typos
ybooks.com, zxybooks.com, xybooks.com, zsybooks.com, sybooks.com, zaybooks.com, aybooks.com, z ybooks.com, ybooks.com, zbooks.com, zytbooks.com, ztbooks.com, zygbooks.com, zgbooks.com, zyhbooks.com, zhbooks.com, zyjbooks.com, zjbooks.com, zyubooks.com, zubooks.com, zyooks.com, zybvooks.com, zyvooks.com, zybfooks.com, zyfooks.com, zybgooks.com, zygooks.com, zybooks.com, zyooks.com, zybhooks.com, zyhooks.com, zybnooks.com, zynooks.com, zyb ooks.com, zy ooks.com, zyboks.com, zyboioks.com, zybioks.com, zybokoks.com, zybkoks.com, zyboloks.com, zybloks.com, zybooks.com, zyboks.com, zybopoks.com, zybpoks.com, zybo9oks.com, zyb9oks.com, zybo0oks.com, zyb0oks.com, zyboks.com, zybooiks.com, zyboiks.com, zybookks.com, zybokks.com, zyboolks.com, zybolks.com, zybooks.com, zyboks.com, zyboopks.com, zybopks.com, zyboo9ks.com, zybo9ks.com, zyboo0ks.com, zybo0ks.com, zyboos.com, zybookus.com, zyboous.com, zybookjs.com, zyboojs.com, zybookms.com, zybooms.com, zybookls.com, zybools.com, zybookos.com, zybooos.com, zybook.com, zybooksq.com, zybookq.com, zybooksw.com, zybookw.com, zybookse.com, zybooke.com, zybooksz.com, zybookz.com, zybooksx.com, zybookx.com, zybooksc.com, zybookc.com
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