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 Generated on March 25 2016 04:25 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


Length : 0

We haven't found a title description on your page. This should be a clear indicator for search engines on what your page is about and to your visitors. But keep it between 10 and 70 characters (spaces included)

Length : 0

Description is missing. It will tell search engines and potential visitors what your page is about. Keep it between 70 and 160 characters (spaces included).

Note: Google sometimes chooses not display the description you put in here, but rather shows a part of your page text that it seems relevant to the users search query..
Og Meta Properties This page does not take advantage of Og Properties. When people share or like your page, it is great to have good Og properties. Otherwise, they will just see a link to your website.

In case of Facebook or Twitter this is how you get started:

Facebook: https://developers.facebook.com/docs/sharing/webmasters

Twitter: https://dev.twitter.com/cards/getting-started
H1 H2 H3 H4 H5 H6
4 4 0 0 0 0
  • [H1] Learn how to program!
  • [H1] Develop video games!
  • [H1] Make games with graphics!
  • [H1] Encrypt messages and hack ciphers!
  • [H2] Testimonials
  • [H2] Educational Discount
  • [H2] Programming Books I Recommend (if you don't mind paying)
  • [H2] Contact
Images We found 41 images on this web page.

35 alt attributes are empty or missing. Add alternative text so that search engines can better understand the content of your images.
Text/HTML Ratio Ratio : 17%

Awesome! This page's ratio of text to HTML code is higher than 15, but lower than 25 percent.
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 Your links have query strings. This is not very readable for your users.
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 42 links including 5 link(s) to files

Anchor Type Juice
Tweet External Passing Juice
Read It Online Internal Passing Juice
Buy the Book Internal Passing Juice
Forum Internal Passing Juice
Subreddit Forum External Passing Juice
Downloads Internal Passing Juice
Wiki Internal Passing Juice
Buggy Code Internal Passing Juice
Traces Internal Passing Juice
Diff Tool Internal Passing Juice
Videos Internal Passing Juice
Extra Content Internal Passing Juice
Errata Internal Passing Juice
Edu Discount Internal Passing Juice
About the Author Internal Passing Juice
Invent with Scratch External Passing Juice
Donate Bitcoins Internal Passing Juice
Book HTML External Passing Juice
on the web Internal Passing Juice
(Alternate link) External Passing Juice
Or purchase on Amazon for $3 External Passing Juice
(Alternate link) External Passing Juice
(Alternate link) External Passing Juice
Or purchase on Amazon for $3 External Passing Juice
Electronic Frontier Foundation External Passing Juice
Creative Commons External Passing Juice
Tor Project External Passing Juice
(Alternate link) External Passing Juice
Or purchase on Amazon for $3 External Passing Juice
tartley.com Internal Passing Juice
naturalmath.com Internal Passing Juice
"Python for Kids" Internal Passing Juice
No Starch Press Internal Passing Juice
"Programming the Raspberry Pi: Getting Started with Python" Internal Passing Juice
Raspberry Pi Internal Passing Juice
"Super Scratch Programming Adventure!: Learn to Program By Making Cool Games" Internal Passing Juice
Scratch programming environment Internal Passing Juice
"Python Programming for the Absolute Beginner, 3rd Edition" Internal Passing Juice
"The Quick Python Book, 2nd Edition" Internal Passing Juice
"Programming Video Games for the Evil Genius" Internal Passing Juice
"Hello World! Computer Programming for Kids and Other Beginners" Internal Passing Juice
"Violent Python: A Cookbook for Hackers, Forensic Analysts, Penetration Testers and Security Engineers" Internal Passing Juice

SEO Keywords

Keywords Cloud review python code amazon full read book game programming ciphers
Keywords Consistency
Keyword Content Title Description Headings
book 17
python 10
programming 9
amazon 8
read 6


Url Domain : inventwithpython.com
Length : 20
Favicon Great, your website has a favicon.
Printability We could not find a Print-Friendly CSS.
Language Good. Your declared language is en.


Doctype XHTML 1.0 Transitional
Encoding You have not specified the document's charset.
W3C Validity Errors : 60
Warnings : 1
Email Privacy Great! No email address has been found as plain text!
Deprecated HTML
Deprecated tags Occurrences
<center> 1
Deprecated HTML tags are HTML tags that are no longer used. It is recommended that you remove or replace these tags because they are now considered obsolete.
Speed Tips
Attention! Try to avoid nested tables in HTML.
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 Missing

Your website doesn't have a robots.txt file - this can be problematic.

A robots.txt file allows you to restrict the access of search engine robots that crawl the web and it can prevent these robots from accessing specific directories and pages. It also specifies where the XML sitemap file is located.

For more information on how to do this: www.robotstxt.org
Analytics Great, your website has an analytics tool.

   Google Analytics

PageSpeed Insights


Clicky Web Analytics