visionlearning.net

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.net/en/

Character length : 26

Title

Visionlearing | 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.net/robots.txt

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

Social

Social Engagement

No info found.

Content

Doctype

HTML 5

Encoding

Perfect! The character encoding is set: UTF-8.

Language

We have found the language localisation: ”en”.

Title

Visionlearing | Your insight into science

Character length : 41

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	12	5	0

Heading structure in the source code

<H1> Access our award-winning, free resources for teaching and learning science.
<H4> Biology
<H4> Chemistry
<H4> Earth Science
<H4> General Science
<H4> Inside Science
<H4> Math in Science
<H4> Physics
<H4> Process of Science
<H4> Interactive Animations
<H5> About us
<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
content5
terms4
help4
classroom4
module3
human3
march3
learning3
incorrect3
cycle3
register3
blog3
library3
glossary3
day2
nitrogen2
learn2
ngss2
together2
quiz2
all2
atoms2
bookmarks2
visionlearning2
courses2
february2
engineering2
molecules2
units2
term2
free2
access2

Keyword matrix

word	title	descriptions	heading
science
content
terms
help
classroom
module

Two Word cloud

nitrogen cycle2
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 14 images on this web page.

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

Readability

Flesch–Kincaid Grade Level

5.80

Flesch Reading Ease

60.10

Coleman Liau Index

12.00

Automated Readability Index (ARI)

4.60

Dale–Chall Readability

7.40

SMOG Index

8.30

Spache Readibility

5.00

Number of letters

1961

Number of words

381

Number of sentences

104

Average words per sentences

Number of syllables

644

Syllables in words

653

Average syllables in words

1.69

Number of words in first three syllables

Percentage of word / syllables

21.00

Words not in Dale-Chall easy-word list

172

Words not in Spache easy-word list

135

Technologies

Mobile optimization

This website is optimal for mobile devices!

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.

Loading time

2,470 ms

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

File size of all javascript files combined

1.40MB

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.net/mediaelement/css/mejs-base.css
http://www.visionlearning.net/owl-carousel/owl.carousel.css
http://www.visionlearning.net/qtip/jquery.qtip.min.css
http://www.visionlearning.net/css/main.css
http://www.visionlearning.net/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

83.80KB

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

2.04MB

Image optimisation

You can save 1.6MB (86% 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.

Links

We found a total of 61 different links.
Internal links: 51
External links: 10

External links:

Link text (anchor)	Link strength
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?




https://itunes.apple.com/.. /id914985551?mt=8

Internal links:

Link text (anchor)	Link strength
http://www.visionlearning.net/#
Español
My Account
Register
About Us
Help
Blog
http://www.visionlearning.net
Library Learning modules
Glossary Science terms
Classroom Teachers & Students
Biology
Chemistry
Earth Science
General Science
Inside Science
Math in Science
Physics
Process of Science
Interactive Animations
Learn More
Learn More
Go to Quiz
The Nitrogen Cycle
Go to module
bond
Go to term
http://www.visionlearning.net/#top
Sign In
Register for Free
Library Readings & quizzes
Glossary Science terms
Classroom Courses & bookmarks
Home
Register
About Us
Visionlearning at a Glance
Who We Are
Our Content
NGSS
Mission & Goals
Sponsorship
Recognition & Awards
Terms
Help
Contact Us
Bookmarks
Courses
FAQs
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.com

visionlearning.org

Icons

Favicon

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

Order of Heading elements on mobile by position

H1 : Access our award-winning, free resources for teaching and learning science., ( 180px from top )
H4 : Biology, ( 302px from top )
H4 : Chemistry, ( 342px from top )
H4 : Earth Science, ( 382px from top )
H4 : General Science, ( 422px from top )
H4 : Inside Science, ( 462px from top )
H4 : Math in Science, ( 502px from top )
H4 : Physics, ( 542px from top )
H4 : Process of Science, ( 582px from top )
H4 : Interactive Animations, ( 622px from top )
H5 : About us, ( 684px from top )
H5 : We support NGSS, ( 901px from top )
H4 : Quick Quiz, ( 1142px from top )

Typos

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SEO report of visionlearning.net