SEO report of textbook-pv.org
Textbook Photovoltaics
www.textbook-pv.org/
Error! The "meta description" is missing, the page has no summary description!
Tasks
- Make the site mobile device friendly.
- Select one version of your site as main and make a redirect from other versions to that one.
- Avoid using deprecated HTML tags.
- Implement the viewport meta tag.
SEO
URL
Domain : www.textbook-pv.org/
Character length : 20
Title
Textbook Photovoltaics
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
Missing doctype element
Encoding
Error! The character encoding setting is missing!
Language
Error! No language localization is found.
Title
Textbook Photovoltaics
Character length : 22
Good! The title’s length is between 10 and 70 characters.
Character length : 22
Good! The title’s length is between 10 and 70 characters.
Text / HTML ratio
Ratio : 26%
Good! The text / code ratio is between 25 and 70 percent.
Good! The text / code ratio is between 25 and 70 percent.
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
|---|---|---|---|---|---|
| 0 | 1 | 1 | 0 | 0 | 0 |
Heading structure in the source code
- <H2> Homepage for the Textbook Photovoltaics
- <H3> Konrad Mertens: Photovoltaics - Fundamentals, Technology and Practice
Word cloud
- book6
- photovoltaics3
- software2
- site2
- exercises2
- figures2
- page2
- information2
- start2
Keyword matrix
| word | title | descriptions | heading |
|---|---|---|---|
| book | |||
| photovoltaics | |||
| software | |||
| site | |||
| exercises | |||
| figures |
Two Word cloud
- start page2
404 Page
The website has a 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 5 images on this web page.
Good! Every image has an alternative text attributes set on this website.
Good! Every image has an alternative text attributes set on this website.
Technologies
Mobile optimization
Error! This website is not optimized for mobile devices... It is optimized for devices which have at least 526px wide display!
Deprecated HTML elements
Error! Deprecated HTML tags are used on this webpage. You should improve your website.
| Deprecated HTML tags | Occurrences |
|---|---|
| <center> | 3 |
Redirection (www / not www)
Error! The web address is accessible with and without www!
Deprecated HTML elements
Error! Deprecated HTML tags are used on this webpage. You should improve your website.
| Deprecated HTML tags | Occurrences |
|---|---|
| <center> | 3 |
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
301 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.
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.
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 15 different links.
Internal links: 12
External links: 3
Internal links: 12
External links: 3
External links:
| Link text (anchor) | Link strength |
|---|---|
| German Book | |
| http://www.quick-counter.net | |
| Link to the book site at Amazon |
Internal links:
| Link text (anchor) | Link strength |
|---|---|
| Start Page | |
| Information about Book | |
| Figures | |
| Exercises | |
| Software | |
| Links | |
| Literature | |
| Errata | |
| Contact | |
| Legal Disclosure | |
| Start Page | |
| Contact |
Website security
IP
194.95.72.108
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
Icons
Favicon
Good! The website uses favicon.
Order of Heading elements on mobile by position
- H2 : Homepage for the Textbook Photovoltaics, ( 187.90625px from top )
- H3 : Konrad Mertens: Photovoltaics - Fundamentals, Technology and Practice, ( 424.53125px from top )
Typos
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