History of Computers, Computing and Internet
www.history-computer.com/
History of Computers, Computing and Internet - Home page
- 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.
- Use "H" tags.
URL
Domain : www.history-computer.com/
Character length : 25
Title
History of Computers, Computing and Internet
Description
History of Computers, Computing and Internet - Home page
Keywords (meta keywords)
history of computer, history of computing, Internet, Pascal, Schickard, Leibniz, Leonardo da Vinci
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
Error! Hyphen (-) is a better solution than underscore (_) in the URLs
- http://www.history-computer.com/CalculatingTools/calc_tools.html ("Calculating tools")
Search engine friendly URLs
Good! The website uses SEO friendly URLs.
Checking the robots.txt file
There is robots.txt file.
https://history-computer.com/robots.txt
https://history-computer.com/robots.txt
User-agent | Disallowed for the search engines |
---|---|
ia_archiver |
|
Teoma |
|
googlebot |
|
msnbot |
|
Slurp |
|
AbachoBOT |
|
fireball |
|
VoilaBot |
|
Yandex |
|
* |
|
Social Engagement
No info found.
Doctype
XHTML 1.0 Transitional
Encoding
Perfect! The character encoding is set: UTF-8.
Language
Error! No language localization is found.
Title
History of Computers, Computing and Internet
Character length : 44
Good! The title’s length is between 10 and 70 characters.
Character length : 44
Good! The title’s length is between 10 and 70 characters.
Text / HTML ratio
Ratio : 40%
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 | 0 | 0 | 0 | 0 | 0 |
No "H" tags found
Heading structure in the source code
Word cloud
- see5
- computer5
- people4
- modern4
- try3
- times3
- information3
- important3
- computers3
- internet3
- history3
- four3
- most3
- all2
- thinking2
- dream2
- know2
- dreamers2
- machine2
- never2
- invention2
- calculators2
- charles2
- mechanical2
- tools2
- calculating2
- birth2
- babbage2
- last2
- several2
Keyword matrix
word | title | descriptions | heading |
---|---|---|---|
see | |||
computer | |||
people | |||
modern | |||
try | |||
times |
Two Word cloud
- charles babbage2
- four times2
- who see2
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.
Mobile optimization
Error! This website is not optimized for mobile devices... It is optimized for devices which have at least 776px wide display!
Deprecated HTML elements
Good! No deprecated HTML tags are detected.
Redirection (www / not www)
Error! The web address is accessible with and without 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.
Server response time
The server response time is fast enough.
Loading time
814 ms
Table layout
Good! No nested tables found.
Number of HTTP resources
6
Number of source domains
2
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.history-computer.com/style.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.
File size of all css files combined
7.96KB
CSS minifying
Great! The CSS elements are minified.
Uncompressed size of the of the HTML
5.34KB
Gzip compression
Your site uses compression.
Number of static resources (image, JS, CSS)
4
Browser cache
The browser cache is not set correctly for all elements.
URL | Duration |
---|---|
http://www.google-analytics.com/ga.js | 2 hours |
File size of all images combined
64.04KB
Image optimisation
You can save 11.1KB (18% compression) by optimising the images below:
- By lossless compressing the http://www.history-computer.com/images/central.jpg you can save 10.8KB (18%) data.
- By lossless compressing the http://www.history-computer.com/images/backg_lr.gif you can save 297B (33%) data.
Alexa
486656
Main traffic sources
We found a total of 19 different links.
Internal links: 19
Internal links: 19
External links:
Link text (anchor) | Link strength |
---|
Internal links:
Link text (anchor) | Link strength |
---|---|
Dreamers | |
Calculating tools | |
Mechanical calculators | |
Charles Babbage | |
Birth of the modern computer | |
Internet | |
People | |
Sitemap | |
Sources | |
White | |
Witter | |
Stettner | |
Pidgin | |
Pfeifer | |
Lovell | |
Dechales | |
Plumb | |
Stark | |
Webb |
IP
23.239.14.58
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
Warning! The website contains at least one unencrypted email address.
Favicon
Good! The website uses favicon.
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