PDF Search Engine - Find free PDF books online
www.pdfsearchengine.info/
PDF search engine helps you find free books in pdf format. Whether you are searching for course books, classics or simple pdf files.
- Make the site mobile device friendly.
- Avoid using deprecated HTML tags.
- Implement the viewport meta tag.
URL
Domain : www.pdfsearchengine.info/
Character length : 25
Title
PDF Search Engine - Find free PDF books online
Description
PDF search engine helps you find free books in pdf format. Whether you are searching for course books, classics or simple pdf files.
Keywords (meta keywords)
pdf search engine, ebook search engine, pdf search, free pdf books
Error! Using “meta keywords” is meaningless in a while.
Error! Using “meta keywords” is meaningless in a while.
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 Engagement
No info found.
Doctype
Missing doctype element
Encoding
Perfect! The character encoding is set: UTF-8.
Language
Error! No language localization is found.
Title
PDF Search Engine - Find free PDF books online
Character length : 46
Good! The title’s length is between 10 and 70 characters.
Character length : 46
Good! The title’s length is between 10 and 70 characters.
Text / HTML ratio
Ratio : 4%
Error! The text / HTML code ratio is under 15 percent on this website. This value shows that the website has relatively few text content.
Error! The text / HTML code ratio is under 15 percent on this website. This value shows that the website has relatively few text content.
Headings
H1 | H2 | H3 | H4 | H5 | H6 |
---|---|---|---|---|---|
1 | 0 | 0 | 0 | 0 | 0 |
Heading structure in the source code
- <H1> PDF Search Engine
Word cloud
- search5
- pdf5
- engine3
Keyword matrix
word | title | descriptions | heading |
---|---|---|---|
search | |||
engine |
Two Word cloud
- search engine2
- pdf search2
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 8 images on this web page.
Alternate attributes for the following 7 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.
Alternate attributes for the following 7 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.
- http://www.pdfsearchengine.info/images/facebook.png
- http://www.pdfsearchengine.info/images/twitter.png
- http://www.pdfsearchengine.info/images/m_29.png
- http://www.pdfsearchengine.info/images/favorites.png
- http://www.pdfsearchengine.info/images/su.png
- http://www.pdfsearchengine.info/images/delicious.png
- http://www.pdfsearchengine.info/images/google.png
Mobile optimization
Error! This website is not optimized for mobile devices... It is optimized for devices which have at least 669px wide display!
Deprecated HTML elements
Error! Deprecated HTML tags are used on this webpage. You should improve your website.
Deprecated HTML tags | Occurrences |
---|---|
<center> | 4 |
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
Error! Deprecated HTML tags are used on this webpage. You should improve your website.
Deprecated HTML tags | Occurrences |
---|---|
<center> | 4 |
Printability
Suggestion! Unfortunately, no printer-friendly CSS found.
Meta Tag (viewport tag, mobile devices)
Error! The meta tag named viewport is missing.
Server response time
The server response time is fast enough.
Loading time
1,357 ms
Table layout
Error! Avoid using nested tables!
Number of HTTP resources
18
Number of source domains
4
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.pdfsearchengine.info/css/index.css
- http://www.pdfsearchengine.info/css/reset.css
- http://www.google.com/cse/api/branding.css
Javascript
Good! Just a few javascript files are detected on the website.
File size of all javascript files combined
45.59KB
Javascript minifying
Great! The Javascript files are minified.
CSS
Good! Just a few CSS files are used on this website.
- http://www.pdfsearchengine.info/css/index.css
File size of all css files combined
9.18KB
CSS minifying
You can save 999B (15% compression) on the analysed URL by minifying the CSS files.
- By minifying http://www.pdfsearchengine.info/css/index.css you can save 999B (15% compression rate)
Uncompressed size of the of the HTML
7.08KB
Gzip compression
Error! By using Gzip you can save 4.9KB (72% compression) on your site.
- By compressing http://www.pdfsearchengine.info/css/index.css you can save 4.9KB (72% compression rate)
- By compressing http://www.pdfsearchengine.info you can save 4.6KB (66% compression rate)
- By compressing http://www.pdfsearchengine.info/css/reset.css you can save 240B (44% compression rate)
Number of static resources (image, JS, CSS)
13
Browser cache
The browser cache is not set correctly for all elements.
URL | Duration |
---|---|
http://www.pdfsearchengine.info/css/index.css | Expiry time is not specified |
http://www.pdfsearchengine.info/css/reset.css | Expiry time is not specified |
http://www.pdfsearchengine.info/images/delicious.png | Expiry time is not specified |
http://www.pdfsearchengine.info/images/facebook.png | Expiry time is not specified |
http://www.pdfsearchengine.info/images/favorites.png | Expiry time is not specified |
http://www.pdfsearchengine.info/images/google.png | Expiry time is not specified |
http://www.pdfsearchengine.info/images/m_26.png | Expiry time is not specified |
http://www.pdfsearchengine.info/images/m_29.png | Expiry time is not specified |
http://www.pdfsearchengine.info/images/su.png | Expiry time is not specified |
http://www.pdfsearchengine.info/images/twitter.png | Expiry time is not specified |
http://www.google-analytics.com/ga.js | 2 hours |
File size of all images combined
7.80KB
Image optimisation
You can save 1.3KB (27% compression) by optimising the images below:
- By lossless compressing the http://www.pdfsearchengine.info/images/google.png you can save 419B (37%) data.
- By lossless compressing the http://www.pdfsearchengine.info/images/m_26.png you can save 198B (23%) data.
- By lossless compressing the http://www.pdfsearchengine.info/images/twitter.png you can save 154B (26%) data.
- By lossless compressing the http://www.pdfsearchengine.info/images/favorites.png you can save 139B (21%) data.
- By lossless compressing the http://www.pdfsearchengine.info/images/delicious.png you can save 136B (61%) data.
- By lossless compressing the http://www.pdfsearchengine.info/images/facebook.png you can save 132B (27%) data.
- By lossless compressing the http://www.pdfsearchengine.info/images/su.png you can save 109B (13%) data.
Alexa
682573
We found a total of 13 different links.
Internal links: 7
External links: 6
Internal links: 7
External links: 6
External links:
Link text (anchor) | Link strength |
---|---|
Facebook page | |
Follow us on Twitter | |
StumbleUpon | |
Del.icio.us | |
Google Bookmarks | |
EBook Search Engine |
Internal links:
Link text (anchor) | Link strength |
---|---|
PDF Search | |
Submit PDFs | |
Advertise | |
Contact us | |
Subscribe | |
PDF Search Engine | |
Free PDF Books |
IP
173.255.129.12
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.
Favicon
Good! The website uses favicon.
- H1 : PDF Search Engine, ( 154px from top )
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