SEO report of textbook-photovoltaics.org
Textbook Photovoltaics
www.textbook-photovoltaics.org/
Error! The "meta description" is missing, the page has no summary description!
Tasks
- 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-photovoltaics.org/
Character length : 31
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
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.
Table layout
Good! No nested tables found.
Number of HTTP resources
6
Number of source domains
3
Render blocking resources
The elements below are blocking the “above the fold” rendering.
List of render blocking css files
List of render blocking css files
- http://www.textbook-photovoltaics.org/formate.css
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
3.00KB
CSS minifying
You can save 603B (22% compression) on the analysed URL by minifying the CSS files.
- By minifying http://www.textbook-photovoltaics.org/formate.css you can save 603B (22% compression rate)
Speed test – Compression
Uncompressed size of the of the HTML
3.53KB
Gzip compression
Error! By using Gzip you can save 2KB (62% compression) on your site.
- By compressing http://www.textbook-photovoltaics.org you can save 2KB (62% compression rate)
- By compressing http://www.textbook-photovoltaics.org/formate.css you can save 1.8KB (65% compression rate)
Speed test – Browser cache
Number of static resources (image, JS, CSS)
3
Browser cache
The browser cache is not set correctly for all elements.
| URL | Duration |
|---|---|
| http://www.textbook-photovoltaics.org/formate.css | Expiry time is not specified |
| http://www.textbook-photovoltaics.org/pictures/titelbild_klein.jpg | Expiry time is not specified |
| http://www.textbook-photovoltaics.org/pictures/titelbild_mittel.jpg | Expiry time is not specified |
Speed test – Images
File size of all images combined
92.13KB
Image optimisation
You can save 1.1KB (17% compression) by optimising the images below:
- By lossless compressing the http://www.textbook-photovoltaics.org/pictures/titelbild_klein.jpg you can save 1.1KB (17%) data.
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.
Typos
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