visionlearning.com

Tasks

Select one version of your site as main and make a redirect from other versions to that one.
Avoid using deprecated HTML tags.

SEO

URL

Domain : www.visionlearning.com/en/

Character length : 26

Title

Visionlearning | Your insight into science

Description

Visionlearning is a free resource for the study of science, technology and math (STEM).

Keywords (meta keywords)

science, education, STEM, math, biology, chemistry, physics, earth science, online learning

Error! Using “meta keywords” is meaningless in a while.

Open Graph Protocol

Good! The OG (Open Graph) protocol is set on this website.

url: http://www.visionlearning.com/en
title: Visionlearning.com
type: website
site_name: Visionlearning
description: Library of Modules
image: http://www.visionlearning.com/

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://visionlearning.com/robots.txt

User-agent	Disallowed for the search engines
*	/*/pop

Social

Social Engagement

Linkedin12

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

Visionlearning | Your insight into science

Character length : 42

Good! The title’s length is between 10 and 70 characters.

Text / HTML ratio

Ratio : 11%

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
1	0	0	11	5	0

Heading structure in the source code

<H1> A learning space for science educators and students
<H4> Biology
<H4> Chemistry
<H4> Earth Science
<H4> General Science
<H4> Inside Science
<H4> Math in Science
<H4> Physics
<H4> Process of Science
<H5> Free Award-winning Content
<H5> We support NGSS
<H4> Quick Quiz
<H4> Module of the day
<H4> Term of the day
<H5> Science Blog
<H5> Newsletter
<H5> Follow Us

Word cloud

science13
content6
classroom5
terms4
learning4
march3
human3
register3
glossary3
blog3
ngss3
module3
courses3
library3
visionlearning2
energy2
engineering2
day2
free2
food2
quiz2
custom2
help2
term2
february2
modules2

Keyword matrix

word	title	descriptions	heading
science
content
classroom
terms
learning
march

Two Word cloud

custom courses2
glossary science2

404 Page

The website has no standard 404 error page.

Flash content

Good! The website does not have any flash contents.

Frame

Good! The website does not use iFrame solutions.

Images

We found 15 images on this web page.

Good! Every image has an alternative text attributes set on this website.

Readability

Flesch–Kincaid Grade Level

6.10

Flesch Reading Ease

58.00

Coleman Liau Index

12.00

Automated Readability Index (ARI)

4.70

Dale–Chall Readability

7.10

SMOG Index

8.40

Spache Readibility

5.00

Number of letters

1912

Number of words

371

Number of sentences

Average words per sentences

Number of syllables

636

Syllables in words

637

Average syllables in words

1.71

Number of words in first three syllables

Percentage of word / syllables

21.02

Words not in Dale-Chall easy-word list

162

Words not in Spache easy-word list

133

Technologies

Deprecated HTML elements

Good! No deprecated HTML tags are detected.

Redirection (www / not www)

Error! The web address is accessible with and without 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

Number of source domains

Render blocking resources

The elements below are blocking the “above the fold” rendering.
List of render blocking javascript files

https://www.visionlearning.com/.. /modernizr-2.6.2-respond-1.1.0.min.js

List of render blocking css files

https://maxcdn.bootstrapcdn.com/.. /font-awesome.min.css
https://fonts.googleapis.com/css?family=Open+Sans:300italic,400italic...
https://fonts.googleapis.com/css?family=Rock+Salt
https://www.visionlearning.com/mediaelement/css/mejs-base.css
https://www.visionlearning.com/owl-carousel/owl.carousel.css
https://www.visionlearning.com/qtip/jquery.qtip.min.css
https://www.visionlearning.com/css/main.css
https://www.visionlearning.com/css/magnific-popup.css
https://fonts.googleapis.com/css?family=Special+Elite

Speed test – Javascript

Javascript

Error! Too many javascript files found which slows down the page load on the website.

http://www.visionlearning.com/js/vendor/modernizr-2.6.2-respond-1.1.0.min.js
http://www.visionlearning.com/js/vendor/jquery-1.11.0.min.js
http://www.visionlearning.com/owl-carousel/owl.carousel.min.js
http://www.visionlearning.com/js/vendor/svgeezy.min.js
http://www.visionlearning.com/js/vendor/jquery.keeptherhythm.js
http://www.visionlearning.com/js/vendor/jquery.customSelect.min.js
http://www.visionlearning.com/mediaelement/js/mediaelement-and-player.js
http://www.visionlearning.com/mediaelement/js/mep-feature-loop.js
http://www.visionlearning.com/mediaelement/js/mep-feature-sourcechooser.js
http://www.visionlearning.com/js/vendor/jquery.sticky-kit.js
http://www.visionlearning.com/js/vendor/jquery.magnific-popup.min.js
http://www.visionlearning.com/js/vendor/jquery.hoverIntent.minified.js
http://www.visionlearning.com/qtip/jquery.qtip.min.js
http://www.visionlearning.com/js/main.js
http://www.visionlearning.com/js/script_rsd.js

File size of all javascript files combined

1.59MB

Javascript minifying

You can save 19.3KB (39% 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.visionlearning.com/mediaelement/css/mejs-base.css
http://www.visionlearning.com/owl-carousel/owl.carousel.css
http://www.visionlearning.com/qtip/jquery.qtip.min.css
http://www.visionlearning.com/css/main.css
http://www.visionlearning.com/css/magnific-popup.css

File size of all css files combined

170.31KB

CSS minifying

You can save 2.3KB (40% compression) on the analysed URL by minifying the CSS files.

By minifying https://www.visionlearning.com/mediaelement/css/mejs-base.css you can save 2KB (53% compression rate)
By minifying https://www.visionlearning.com/css/magnific-popup.css you can save 203B (12% compression rate)
By minifying https://www.visionlearning.com/owl-carousel/owl.carousel.css you can save 107B (23% compression rate)

Speed test – Compression

Uncompressed size of the of the HTML

134.78KB

Gzip compression

Your site uses compression.

Speed test – Browser cache

Number of static resources (image, JS, CSS)

Browser cache

The browser cache is not set correctly for all elements.

URL	Duration
https://www.google.com/recaptcha/api.js	5 minutes
https://connect.facebook.net/en_US/all.js	20 minutes
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js	60 minutes
https://ssl.google-analytics.com/ga.js	2 hours

Speed test – Images

File size of all images combined

1.98MB

Image optimisation

You can save 1.6MB (85% compression) by optimising the images below:

By lossless compressing the https://www.visionlearning.com/images/categories/general_science.jpg you can save 242.6KB (99%) data.
By lossless compressing the https://www.visionlearning.com/images/categories/earth_science.jpg you can save 214.3KB (99%) data.
By lossless compressing the https://www.visionlearning.com/.. /process_of_science.jpg you can save 170.9KB (98%) data.
By lossless compressing the https://www.visionlearning.com/images/categories/chemistry.jpg you can save 165.1KB (98%) data.
By lossless compressing the https://www.visionlearning.com/images/categories/math_in_science.jpg you can save 164.1KB (99%) data.
By lossless compressing the https://www.visionlearning.com/images/categories/biology.jpg you can save 147.2KB (98%) data.
By lossless compressing the https://www.visionlearning.com/images/categories/physics.jpg you can save 139.5KB (98%) data.
By lossless compressing the https://www.visionlearning.com/images/categories/science_stories.jpg you can save 131.9KB (98%) data.
By lossless compressing the https://www.visionlearning.com/images/cta-our-classroom.jpg you can save 129.8KB (52%) data.
By lossless compressing the https://www.visionlearning.com/images/cta-interactive-animations.jpg you can save 118.4KB (50%) data.
By lossless compressing the https://tpc.googlesyndication.com/.. /7813706710725948049 you can save 17KB (35%) data.

Links

We found a total of 60 different links.
Internal links: 55
External links: 5

External links:

Link text (anchor)	Link strength




Our content on-the-go. Download our new app for iPad and iPhone today!

Internal links:

Link text (anchor)	Link strength
http://www.visionlearning.com/#
Español
My Account
Register
About Us
Help
Blog
http://www.visionlearning.com
Library Learning modules
Glossary Science terms
Classroom Custom courses
Biology
Chemistry
Earth Science
General Science
Inside Science
Math in Science
Physics
Process of Science
About us
About NGSS
Go to Quiz
Energy Metabolism I
Go to module
CE
Go to term
Interactive Animations
Classroom
March 28, 2017Human Mars Expeditions: Psychiatric Emergency Could be a Significant Danger
March 14, 2017Colonization of the Venusian Clouds: Is ‘Surfacism’ Clouding Our Judgement?
March 7, 2017Social Learning in Animals: Implications for the Evolution of Human Intelligence
February 28, 2017Goldilocks and the Seven Dwarfs: Exoplanet Discovery is a Sample of What’s to Come
February 21, 2017Human Germline Modification: A Frontier for Biotechnology, or A Target for Prohibitions?
Top
Sign In
Register for Free
Library Learning modules
Glossary Science terms
Classroom Custom courses
Home
Register
Visionlearning at a Glance
Who We Are
Our Content
NGSS
Mission & Goals
Sponsorship
Recognition & Awards
Terms
Contact Us
FAQs
About Courses
About Bookmarks
Privacy
Terms

Website security

96.126.104.93

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

visionlearning.org

visionlearning.net

Icons

Favicon

Error! No favicon is found. Using favicon helps to build a better brand quicker.

Typos

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SEO report of visionlearning.com