SEO report of rcbook.org
Introduction to Reversible Computing | Book, Downloads, Updates
www.rcbook.org/
Error! The "meta description" is missing, the page has no summary description!
Tasks
- Avoid using deprecated HTML tags.
SEO
URL
Domain : www.rcbook.org/
Character length : 15
Title
Introduction to Reversible Computing | Book, Downloads, Updates
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
HTML 5
Encoding
Perfect! The character encoding is set: UTF-8.
Language
We have found the language localisation: ”en”.
Title
Introduction to Reversible Computing | Book, Downloads, Updates
Character length : 63
Good! The title’s length is between 10 and 70 characters.
Character length : 63
Good! The title’s length is between 10 and 70 characters.
Text / HTML ratio
Ratio : 6%
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 |
|---|---|---|---|---|---|
| 2 | 3 | 6 | 0 | 0 | 0 |
Heading structure in the source code
- <H1> Introduction to Reversible Computing
- <H2> Book, Downloads, Updates
- <H1> Introduction to Reversible Computing
- <H2> by Kalyan S. Perumalla
- <H3> 1st Edition, ISBN 978-1439873403, Chapman and Hall/CRC
- <H2> Additional information coming soon…
- <H3> Recent Posts
- <H3> Recent Comments
- <H3> Archives
- <H3> Categories
- <H3> Meta
Word cloud
- computing3
- introduction3
- reversible3
- uncategorized2
- comments2
- recent2
- search2
- august2
- rss2
- wordpress2
Keyword matrix
| word | title | descriptions | heading |
|---|---|---|---|
| computing | |||
| introduction | |||
| reversible | |||
| uncategorized | |||
| comments | |||
| recent |
Two Word cloud
- introduction to reversible2
Three Word cloud
- introduction to reversible computing3
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 0 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.
Readability
Flesch–Kincaid Grade Level
6.00
Flesch Reading Ease
58.60
Coleman Liau Index
12.00
Automated Readability Index (ARI)
4.80
Dale–Chall Readability
8.90
SMOG Index
8.50
Spache Readibility
5.00
Number of letters
967
Number of words
186
Number of sentences
52
Average words per sentences
4
Number of syllables
318
Syllables in words
308
Average syllables in words
1.71
Number of words in first three syllables
43
Percentage of word / syllables
23.12
Words not in Dale-Chall easy-word list
103
Words not in Spache easy-word list
72
Technologies
Deprecated HTML elements
Good! No deprecated HTML tags are detected.
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
Good! No deprecated HTML tags are detected.
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
18
Number of source domains
3
Render blocking resources
The elements below are blocking the “above the fold” rendering.
List of render blocking javascript files
List of render blocking javascript files
- http://www.rcbook.org/wp-includes/js/jquery/jquery.js?ver=1.12.4
- http://www.rcbook.org/.. /jquery-migrate.min.js?ver=1.4.1
- https://fonts.googleapis.com/css?family=Source+Sans+Pro%3A300%2C400%2...
- http://www.rcbook.org/.. /genericons.css?ver=3.03
- http://www.rcbook.org/.. /style.css?ver=2013-07-18
Speed test – Javascript
Javascript
Good! Just a few javascript files are detected on the website.
- http://www.rcbook.org/wp-includes/js/jquery/jquery.js?ver=1.11.3
- http://www.rcbook.org/wp-includes/js/jquery/jquery-migrate.min.js?ver=1.2.1
- http://www.rcbook.org/wp-includes/js/masonry.min.js?ver=3.1.2
- http://www.rcbook.org/wp-includes/js/jquery/jquery.masonry.min.js?ver=3.1.2
- http://www.rcbook.org/wp-content/themes/twentythirteen/js/functions.js?ver=20150330
- http://www.rcbook.org/wp-includes/js/wp-embed.min.js?ver=4.4.10
File size of all javascript files combined
162.21KB
Javascript minifying
You can save 806B (32% compression) on the analysed URL by minifying the javascript files.
Speed test – CSS
CSS
Good! Just a few CSS files are used on this website.
- http://www.rcbook.org/wp-content/themes/twentythirteen/genericons/genericons.css?ver=3.03
- http://www.rcbook.org/wp-content/themes/twentythirteen/style.css?ver=2013-07-18
File size of all css files combined
102.54KB
CSS minifying
You can save 2.6KB (24% compression) on the analysed URL by minifying the CSS files.
- By minifying http://www.rcbook.org/.. /style.css?ver=2013-07-18 you can save 2.6KB (24% compression rate)
Speed test – Compression
Uncompressed size of the of the HTML
11.48KB
Gzip compression
Your site uses compression.
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.rcbook.org/.. /diamond.png | Expiry time is not specified |
| http://www.rcbook.org/.. /search-icon-2x.png | Expiry time is not specified |
Speed test – Images
File size of all images combined
15.22KB
Image optimisation
All images are optimized.
Links
We found a total of 16 different links.
Internal links: 12
External links: 4
Internal links: 12
External links: 4
External links:
| Link text (anchor) | Link strength |
|---|---|
| CRC Press | |
| Amazon | |
| WordPress.org | |
| Proudly powered by WordPress |
Internal links:
Website security
IP
69.89.25.161
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
Error! No favicon is found. Using favicon helps to build a better brand quicker.
Typos
cbook.org, recbook.org, ecbook.org, rdcbook.org, dcbook.org, rfcbook.org, fcbook.org, rgcbook.org, gcbook.org, r4,cbook.org, 4,cbook.org, rtcbook.org, tcbook.org, r5cbook.org, 5cbook.org, rbook.org, rcxbook.org, rxbook.org, rcsbook.org, rsbook.org, rcbook.org, rbook.org, rcdbook.org, rdbook.org, rcfbook.org, rfbook.org, rcvbook.org, rvbook.org, rc book.org, r book.org, rcook.org, rcbvook.org, rcvook.org, rcbfook.org, rcfook.org, rcbgook.org, rcgook.org, rcbook.org, rcook.org, rcbhook.org, rchook.org, rcbnook.org, rcnook.org, rcb ook.org, rc ook.org, rcbok.org, rcboiok.org, rcbiok.org, rcbokok.org, rcbkok.org, rcbolok.org, rcblok.org, rcbook.org, rcbok.org, rcbopok.org, rcbpok.org, rcbo9ok.org, rcb9ok.org, rcbo0ok.org, rcb0ok.org, rcbok.org, rcbooik.org, rcboik.org, rcbookk.org, rcbokk.org, rcboolk.org, rcbolk.org, rcbook.org, rcbok.org, rcboopk.org, rcbopk.org, rcboo9k.org, rcbo9k.org, rcboo0k.org, rcbo0k.org, rcboo.org, rcbooku.org, rcboou.org, rcbookj.org, rcbooj.org, rcbookm.org, rcboom.org, rcbookl.org, rcbool.org, rcbooko.org, rcbooo.org
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