Tools & Wizards About Us
cvxr.com screenshot

Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

cvxr.com

CVX Research, Inc. | Software for Disciplined Convex Programming

Page Load Speed

2.4 sec in total

First Response

168 ms

Resources Loaded

2.1 sec

Page Rendered

101 ms

cvxr.com screenshot

About Website

Visit cvxr.com now to see the best up-to-date CVX R content for China and also check out these interesting facts you probably never knew about cvxr.com

Visit cvxr.com

Key Findings

We analyzed Cvxr.com page load time and found that the first response time was 168 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

cvxr.com performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value6.0 s

13/100

25%

SI (Speed Index)

Value5.2 s

60/100

10%

TBT (Total Blocking Time)

Value300 ms

79/100

30%

CLS (Cumulative Layout Shift)

Value1.086

2/100

15%

TTI (Time to Interactive)

Value5.8 s

66/100

10%

Network Requests Diagram

cvxr.com

168 ms

cvxr.com

990 ms

js

70 ms

cvxr.css

140 ms

style.min.css

604 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that 88% of them (15 requests) were addressed to the original Cvxr.com, 6% (1 request) were made to Googletagmanager.com and 6% (1 request) were made to Stats.wp.com. The less responsive or slowest element that took the longest time to load (990 ms) belongs to the original domain Cvxr.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 340.6 kB (71%)

Content Size

482.8 kB

After Optimization

142.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cvxr.com main page is 482.8 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. 20% of websites need less resources to load. CSS take 260.0 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 26.8 kB

  • Original 36.0 kB
  • After minification 35.6 kB
  • After compression 9.2 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 26.8 kB or 74% of the original size.

Image Optimization

-26%

Potential reduce by 16.1 kB

  • Original 62.4 kB
  • After minification 46.2 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, CVX R needs image optimization as it can save up to 16.1 kB or 26% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-64%

Potential reduce by 79.7 kB

  • Original 124.5 kB
  • After minification 123.7 kB
  • After compression 44.8 kB

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 79.7 kB or 64% of the original size.

CSS Optimization

-84%

Potential reduce by 218.0 kB

  • Original 260.0 kB
  • After minification 256.0 kB
  • After compression 42.0 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. Cvxr.com needs all CSS files to be minified and compressed as it can save up to 218.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (67%)

Requests Now

15

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CVX R. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

cvxr.com

cvxr.com

168 ms

cvxr.com

cvxr.com

990 ms

js

js

70 ms

cvxr.css

cvxr.css

140 ms

style.min.css

style.min.css

604 ms

mediaelementplayer-legacy.min.css

mediaelementplayer-legacy.min.css

209 ms

wp-mediaelement.min.css

wp-mediaelement.min.css

212 ms

jetpack.css

jetpack.css

630 ms

jquery.min.js

jquery.min.js

489 ms

jquery-migrate.min.js

jquery-migrate.min.js

212 ms

modernizr.js

modernizr.js

276 ms

dresize.js

dresize.js

279 ms

frontend-gtag.min.js

frontend-gtag.min.js

281 ms

e-202431.js

e-202431.js

24 ms

color_logo160.png

color_logo160.png

280 ms

google+-32x32.png

google+-32x32.png

71 ms

twitter-32x32.png

twitter-32x32.png

71 ms

Accessibility Review

cvxr.com accessibility score

79

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

cvxr.com 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

SEO Factors

cvxr.com SEO score

91

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

Social Sharing Optimization

cvxr.com

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