healthimpactoflight.com

Tasks

Avoid using deprecated HTML tags.

SEO

URL

Domain : www.healthimpactoflight.com/

Character length : 28

Title

Health Impact of Light

Description

Did you know that the type of light you're exposed to affects your circadian rhythm? Pre-sleep lights tell your body to release melatonin and get ready for a peaceful night's sleep.

Keywords (meta keywords)

Good! The website does not use “meta keywords”.

Open Graph Protocol

Error! The website does not use the OG (Open Graph) protocol.

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

The robots.txt file is missing!

Social

Social Engagement

No info found.

Content

Doctype

HTML 5

Encoding

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

Language

Error! No language localization is found.

Title

Health Impact of Light

Character length : 22

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

Text / HTML ratio

Ratio : 47%

Good! The text / code ratio is between 25 and 70 percent.

Headings

H1	H2	H3	H4	H5	H6
1	2	2	4	3	0

Heading structure in the source code

<H1> The Health Impact of Light
<H4> Circadian rhythm: Important to overall health
<H3> What doctors are saying
<H4> How light can affect circadian rhythm and potentially health
<H4> How some light can disrupt circadian rhythm
<H4> Recent lighting breakthroughs to help manage circadian rhythm
<H3> What doctors are saying
<H2> The Light Wavelength Spectrum
<H2> Learn More
<H5> My mind races at night - but that isn't what has been keeping me awake
<H5> How your circadian rhythm affects your body
<H5> The positive effect of LED light bulbs on babies

Word cloud

light29
sleep16
circadian15
rhythm10
blue9
health9
lighting9
body8
cycle7
alertness7
wavelength6
right5
spectrum5
led5
help5
melatonin4
how4
include4
medical4
brain4
mood4
emit4
new4
content4
technology4
studies3
bulbs3
affects3
effect3
rhythms3
high3
significant3
tells3
time3
functions3
effects3
continue3
wavelengths3
biological3
nighttime3
day2
louis2
physiological2
onnighttime2
association2
american2
problems2
official2
statement2
found2
sullivan2
impacting2
disrupt2
reproductive2
exposure2
little2
lights2
performance2
cells2
support2

Keyword matrix

word	title	descriptions	heading
light
sleep
circadian
rhythm
blue
health

Two Word cloud

circadian rhythm8
many other3
blue wavelength3
include obesity2
breast cancer2
diseases that may2

Three Word cloud

depression and mood disorders2
circadian disruption include2
especially breast cancer2
potential carcinogenic effects2
american medical association2
have found that lighting2

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 12 images on this web page.

Alternate attributes for the following 3 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.

Technologies

Mobile optimization

This website is optimal for mobile devices!

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.

Loading time

1,240 ms

Table layout

Good! No nested tables found.

Render blocking resources

Good! No render blocking elements found!

Speed test – Javascript

Javascript

Good! Just a few javascript files are detected on the website.

http://www.healthimpactoflight.com/js/vendor/modernizr-2.8.3.min.js
http://www.healthimpactoflight.com/js/vendor/jquery-1.11.2.min.js
http://www.healthimpactoflight.com/js/vendor/bootstrap.min.js

File size of all javascript files combined

0.00

Javascript minifying

Great! The Javascript files are minified.

Speed test – CSS

CSS

Good! Just a few CSS files are used on this website.

http://www.healthimpactoflight.com/css/bootstrap.min.css
http://www.healthimpactoflight.com/css/bootstrap-theme.min.css
http://www.healthimpactoflight.com/css/main-20150608-1.css

File size of all css files combined

0.00

CSS minifying

Great! The CSS elements are minified.

Speed test – Compression

Uncompressed size of the of the HTML

0.00

Gzip compression

Your site uses compression.

Speed test – Browser cache

Browser cache

The browser cache is set correctly for all elements.

Speed test – Images

File size of all images combined

0.00

Image optimisation

All images are optimized.

Links

We found a total of 5 different links.
External links: 5

External links:

Link text (anchor)	Link strength
- Charles A. Czeisler, MD, Director,Division of Sleep Medicine,Harvard Medical School
- Louis Sullivan, MD - Former U.S. Secretary of Health andHuman Services
My mind races at night - but that isn't what has been keeping me awake Why am I feeling so much better? The power of sleep. continue »
How your circadian rhythm affects your body How does your body know when it's time to spring out of bed? Or drift off to sleep? continue »
The positive effect of LED light bulbs on babies "I slept like a baby" is a popular phrase, but any parent knows that's not always the case with little ones. continue »

Internal links:

Link text (anchor)	Link strength

Website security

52.216.227.138

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.

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Icons

Favicon

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

Order of Heading elements on mobile by position

H3 : What doctors are saying, ( 0px from top )
H1 : The Health Impact of Light, ( 61.265625px from top )
H4 : Circadian rhythm: Important to overall health, ( 127.265625px from top )
H4 : How light can affect circadian rhythm and potentially health, ( 598.265625px from top )
H4 : How some light can disrupt circadian rhythm, ( 1602.265625px from top )

Typos

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SEO report of healthimpactoflight.com