28.2 sec in total
1.1 sec
11.4 sec
15.7 sec
Click here to check amazing Computerhistory content for United States. Otherwise, check out these important facts you probably never knew about computerhistory.org
Visit computerhistory.orgWe analyzed Computerhistory.org page load time and found that the first response time was 1.1 sec and then it took 27.1 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
computerhistory.org performance score
name
value
score
weighting
Value3.6 s
31/100
10%
Value8.2 s
2/100
25%
Value4.6 s
71/100
10%
Value1,010 ms
27/100
30%
Value0.076
95/100
15%
Value11.1 s
20/100
10%
1058 ms
705 ms
703 ms
701 ms
1154 ms
Our browser made a total of 59 requests to load all elements on the main page. We found that 83% of them (49 requests) were addressed to the original Computerhistory.org, 8% (5 requests) were made to Images.computerhistory.org and 3% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (5.3 sec) belongs to the original domain Computerhistory.org.
Page size can be reduced by 1.5 MB (48%)
3.2 MB
1.7 MB
In fact, the total size of Computerhistory.org main page is 3.2 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 1.6 MB which makes up the majority of the site volume.
Potential reduce by 30.8 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 11.8 kB, which is 32% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 30.8 kB or 83% of the original size.
Potential reduce by 140.4 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Computerhistory needs image optimization as it can save up to 140.4 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 1.1 MB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 1.1 MB or 71% of the original size.
Potential reduce by 268.9 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Computerhistory.org needs all CSS files to be minified and compressed as it can save up to 268.9 kB or 85% of the original size.
Number of requests can be reduced by 34 (65%)
52
18
The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Computerhistory. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.
www.computerhistory.org
1058 ms
bootstrap.css
705 ms
bootstrap-theme.css
703 ms
jquery.fancybox-1.3.4.css
701 ms
galleria.classic.css
1154 ms
jquery-ui.min.css
943 ms
theme.css
896 ms
font-awesome.css
896 ms
common.css
924 ms
homepage.css
922 ms
css
731 ms
css
792 ms
SC-097_web.jpg
1764 ms
chm-logo.png
1715 ms
splash-main-museum-01.jpg
4009 ms
splash-main-museum-02.jpg
4008 ms
splash-main-museum-03.jpg
4284 ms
splash-main-museum-05.jpg
4208 ms
splash-right-top.jpg
4114 ms
splash-right-bottom.jpg
4192 ms
icon-cal-9x9.gif
4193 ms
jquery-1.7.2.min.js
4274 ms
head.min.js
4193 ms
api.js
4191 ms
jqFancyTransitions.1.8.min.js
4272 ms
chm-v1.js
4192 ms
chm-homepage-v1.js
4215 ms
maxresdefault.jpg
3963 ms
102682838p-03-06-acc_edit2.jpg
3961 ms
MLJ-014_web.jpg
3961 ms
revolution-audio-guide.jpg
3946 ms
bullet_4x4.png
4960 ms
transparent-bg.png
5238 ms
events-outer.jpg
4985 ms
events-inner.jpg
5237 ms
donate-btn.jpg
5209 ms
highlight-bg.png
5208 ms
footer-outer.jpg
5208 ms
footer-inner.jpg
5259 ms
icon-person_9x9.gif
5209 ms
icon-dot_9x9.gif
5208 ms
fontawesome-webfont.woff
2922 ms
glyphicons-halflings-regular.woff
2751 ms
recaptcha__en.js
2627 ms
jquery.tools.min.js
2367 ms
jquery.color.plus-names-2.1.2.min.js
2366 ms
jquery-ui.min.js
2366 ms
jquery-ui-timepicker-addon.js
2365 ms
jquery.fancybox-1.3.4.pack.js
2433 ms
bootstrap.min.js
2433 ms
jquery.scrollUp.min.js
2450 ms
galleria-1.3.1.min.js
2450 ms
jquery-swapvalue.js
2448 ms
jquery.hoverIntent.minified.js
2349 ms
flowplayer-3.2.6.min.js
2350 ms
jquery.innerfade.js
2349 ms
analytics.js
2330 ms
icon-bullets-open.png
1011 ms
icon-bullets-close.png
987 ms
computerhistory.org accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-*] attributes do not match their roles
[aria-*] attributes are not valid or misspelled
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Buttons do not have an accessible name
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
computerhistory.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
computerhistory.org SEO score
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
EN
EN
UTF8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Computerhistory.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Computerhistory.org main page’s claimed encoding is utf8. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
computerhistory.org
Open Graph description is not detected on the main page of Computerhistory. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: