Tools & Wizards About Us

Report Summary

  • 75

    Performance

    Renders faster than
    83% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

kframework.org

K | Runtime Verification Inc

Page Load Speed

529 ms in total

First Response

15 ms

Resources Loaded

325 ms

Page Rendered

189 ms

About Website

Visit kframework.org now to see the best up-to-date Kframework content and also check out these interesting facts you probably never knew about kframework.org

Design and implement your programming language and software analysis tools with mathematical rigor.

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Key Findings

We analyzed Kframework.org page load time and found that the first response time was 15 ms and then it took 514 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

kframework.org performance score

75

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

80/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

27/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value150 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.2 s

74/100

10%

Network Requests Diagram

kframework.org

15 ms

kframework.org

36 ms

css

91 ms

css

109 ms

all.min.css

29 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 26% of them (5 requests) were addressed to the original Kframework.org, 26% (5 requests) were made to Fonts.gstatic.com and 21% (4 requests) were made to Cdn.jsdelivr.net. The less responsive or slowest element that took the longest time to load (168 ms) relates to the external source Runtimeverification.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.7 kB (4%)

Content Size

117.3 kB

After Optimization

112.6 kB

  • Images

In fact, the total size of Kframework.org main page is 117.3 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. 35% of websites need less resources to load. Images take 117.3 kB which makes up the majority of the site volume.

HTML Optimization

-0%

Potential reduce by -8 B

  • Original 0 B

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 web page is already compressed.

Image Optimization

-4%

Potential reduce by 4.7 kB

  • Original 117.3 kB
  • After minification 112.6 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. Kframework images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 3 (33%)

Requests Now

9

After Optimization

6

  • Images
  • JavaScript
  • CSS

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kframework. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

kframework.org accessibility score

88

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

kframework.org best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

kframework.org SEO score

100

Search Engine Optimization Advices

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

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kframework.org 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 Kframework.org 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.

Social Sharing Optimization

Open Graph description is not detected on the main page of Kframework. 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: