598 ms in total
98 ms
162 ms
338 ms
Click here to check amazing Adam Chlipala content for United States. Otherwise, check out these important facts you probably never knew about adam.chlipala.net
Visit adam.chlipala.netWe analyzed Adam.chlipala.net page load time and found that the first response time was 98 ms and then it took 500 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.
adam.chlipala.net performance score
name
value
score
weighting
Value0.8 s
100/100
10%
Value1.2 s
100/100
25%
Value0.8 s
100/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value0.8 s
100/100
10%
98 ms
10 ms
51 ms
23 ms
18 ms
Our browser made a total of 10 requests to load all elements on the main page. We found that 90% of them (9 requests) were addressed to the original Adam.chlipala.net, 10% (1 request) were made to Deepspec.org. The less responsive or slowest element that took the longest time to load (98 ms) belongs to the original domain Adam.chlipala.net.
Page size can be reduced by 23.8 kB (17%)
141.0 kB
117.2 kB
In fact, the total size of Adam.chlipala.net main page is 141.0 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only 10% of websites need less resources to load. Images take 130.2 kB which makes up the majority of the site volume.
Potential reduce by 6.8 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. 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 6.8 kB or 68% of the original size.
Potential reduce by 16.5 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, Adam Chlipala needs image optimization as it can save up to 16.5 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 516 B
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. Adam.chlipala.net needs all CSS files to be minified and compressed as it can save up to 516 B or 66% of the original size.
We found no issues to fix!
9
9
The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Adam Chlipala. According to our analytics all requests are already optimized.
adam.chlipala.net
98 ms
mit.css
10 ms
deepspec-logo-300dpi.png
51 ms
adamc2015.jpg
23 ms
bedrock.png
18 ms
fiat.png
18 ms
fscq.png
20 ms
kami.png
20 ms
web.png
20 ms
cpdt.jpg
39 ms
adam.chlipala.net accessibility score
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Links do not have a discernible name
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
adam.chlipala.net best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
adam.chlipala.net SEO score
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
EN
N/A
N/A
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Adam.chlipala.net can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Adam.chlipala.net main page’s claimed encoding is . 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.
adam.chlipala.net
Open Graph description is not detected on the main page of Adam Chlipala. 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: