11.1 sec in total
518 ms
2.9 sec
7.7 sec
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Visit computer-history.knoji.comWe analyzed Computer-history.knoji.com page load time and found that the first response time was 518 ms and then it took 10.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
computer-history.knoji.com performance score
name
value
score
weighting
Value4.1 s
22/100
10%
Value10.3 s
0/100
25%
Value4.3 s
75/100
10%
Value530 ms
55/100
30%
Value0.001
100/100
15%
Value10.6 s
23/100
10%
518 ms
194 ms
82 ms
115 ms
159 ms
Our browser made a total of 179 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Computer-history.knoji.com, 7% (12 requests) were made to Knoji.com and 3% (5 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (808 ms) relates to the external source Cdn.knoji.com.
Page size can be reduced by 142.1 kB (2%)
9.0 MB
8.9 MB
In fact, the total size of Computer-history.knoji.com main page is 9.0 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. 85% 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. Images take 8.8 MB which makes up the majority of the site volume.
Potential reduce by 140.5 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 140.5 kB or 87% of the original size.
Potential reduce by 200 B
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. Computer History Knoji images are well optimized though.
Potential reduce by 60 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 1.4 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. Computer-history.knoji.com has all CSS files already compressed.
Number of requests can be reduced by 15 (9%)
169
154
The browser has sent 169 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Computer History Knoji. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
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computer-history.knoji.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
Image elements do not have [alt] attributes
computer-history.knoji.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
computer-history.knoji.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Page is blocked from indexing
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Computer-history.knoji.com 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 Computer-history.knoji.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
computer-history.knoji.com
Open Graph data is detected on the main page of Computer History Knoji. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: