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 Generated on May 09 2016 09:54 AM

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* The results are cached for 30s. If you have made changes to your page, please wait for 30s before re-running the test.

SEO Content

Title Explain that Stuff

Length : 18

Perfect, your title contains between 10 and 70 characters.
Description A collection of FREE, easy-to-understand science, technology, and how-it-works articles for the whole family!

Length : 109

Great, your meta description contains between 70 and 160 characters.
Og Meta Properties Good, your page takes advantage of Og Properties. You can click the expand button below-right to see what it contains.

Property Content
url http://www.explainthatstuff.com/
type website
site_name Explain that Stuff
title Explain that stuff! Science and technology made simple
description Explain that Stuff science and technology website - home page
image http://cdn4.explainthatstuff.com/ccd-chip4.jpg
H1 H2 H3 H4 H5 H6
1 7 0 0 0 0
  • [H1] The FREE online science and technology book
  • [H2] Hard stuff... made simple!
  • [H2] Most read
  • [H2] What else is on our site?
  • [H2] Follow us on your favorite sites!
  • [H2] Share this page
  • [H2] Like this site? Get the book!
  • [H2] More to explore on our website...
Images We found 22 images on this web page.

Awesome! Most or all of your images have alt attributes.
Text/HTML Ratio Ratio : 10%

This page's ratio of text to HTML code is below 15 percent, this means that your website probably needs more text content. Search engines these days are smart enough to figure out if a page is on-topic and interesting enough to get higher rankings in their search results.

Try to write a good article around 1500 words and check for grammar and spelling errors. As they say in the SEO world: "Content is King."
Flash Perfect, no Flash content has been detected on this page.
Iframe IFrames elements were detected on this page. Search engines cannot read what is inside an IFrame (For example YouTube video's). It's not crucial, but if there is an alternative, please look into it.

URL Rewrite Good!
Underscores in the URLs We have detected underscores in your URLs. You should rather use hyphens to optimize your SEO.
In-page links We found a total of 41 links including 0 link(s) to files

Anchor Type Juice
Home Internal Passing Juice
A-Z index Internal Passing Juice
Get the book Internal Passing Juice
Follow us Internal Passing Juice
Random article Internal Passing Juice
Timeline Internal Passing Juice
Teaching guide Internal Passing Juice
About us Internal Passing Juice
Privacy policy Internal Passing Juice
Tweet External Passing Juice
Chris Woodford Internal Passing Juice
Water pollution Internal Passing Juice
Electricity Internal Passing Juice
Nanotechnology Internal Passing Juice
Magnetism Internal Passing Juice
Gears Internal Passing Juice
Wind turbines Internal Passing Juice
Batteries Internal Passing Juice
Electric motors Internal Passing Juice
Air pollution Internal Passing Juice
Global warming Internal Passing Juice
Cloud computing Internal Passing Juice
Communications Internal Passing Juice
Computers Internal Passing Juice
Electricity and electronics Internal Passing Juice
Energy Internal Passing Juice
Engineering Internal Passing Juice
Environment Internal Passing Juice
Gadgets Internal Passing Juice
Home life Internal Passing Juice
Materials Internal Passing Juice
Science Internal Passing Juice
Tools, instruments, and measurement Internal Passing Juice
Transportation Internal Passing Juice
Facebook External Passing Juice
Google+ External Passing Juice
Pinterest External Passing Juice
Flickr External Passing Juice
articles feed Internal Passing Juice
Full copyright notice and terms of use Internal Passing Juice
Back to top Internal Passing Juice

SEO Keywords

Keywords Cloud website science stuff book how explain more floorboards hidden home
Keywords Consistency
Keyword Content Title Description Headings
science 8
stuff 5
home 5
book 4
how 4


Url Domain : explainthatstuff.com
Length : 20
Favicon Great, your website has a favicon.
Printability We could not find a Print-Friendly CSS.
Language You have not specified a language.


Doctype HTML 4.01 Transitional
Encoding Perfect. Your declared charset is UTF-8.
W3C Validity Errors : 17
Warnings : 3
Email Privacy Great! No email address has been found as plain text!
Deprecated HTML Great! We haven't found any deprecated HTML tags.
Speed Tips
Excellent, your website doesn't use nested tables.
Your website is using inline styles.
Great, your website has a few CSS files.
Perfect, your website has a few JavaScript files.
Perfect, your website takes advantage of gzip.


Mobile Optimization
Apple Icon
Meta Viewport Tag
Flash content


XML Sitemap Missing

Your website does not have an XML sitemap - to make it easier for search engines to find your pages it is wise to generate a sitemap.

A sitemap lists URLs that are available for crawling and can include additional information like your site's latest updates, frequency of changes and importance of the URLs. This allows search engines to crawl the site more efficiently.

Go here to know more on how to set this up: http://www.sitemaps.org/protocol.html

If you have a lot of pages (up to 500 pages is free) you can auto generate them here: https://www.xml-sitemaps.com
Robots.txt http://explainthatstuff.com/robots.txt

Great, your website has a robots.txt file.
Analytics Missing

We didn't detect an analytics tool installed on this website.

Web analytics let you measure visitor activity on your website. You should have at least one analytics tool installed, but it can also be good to install a second one in order to cross-check the data. This can be Google Analytics or Clicky.com

PageSpeed Insights


Clicky Web Analytics