Tools & Wizards About Us
difrex.com screenshot

Report Summary

  • 88

    Performance

    Renders faster than
    90% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

difrex.com

Difrex: Reactor design with software, simulation online, CSTR

Page Load Speed

2 sec in total

First Response

765 ms

Resources Loaded

1 sec

Page Rendered

165 ms

difrex.com screenshot

About Website

Welcome to difrex.com homepage info - get ready to check Difrex best content for India right away, or after learning these important things about difrex.com

We design, develop and service commercial reactors and auxiliary systems. We help in all steps from concept/idea to commercialization of a new reactor or change/revamp of an existing one.

Visit difrex.com

Key Findings

We analyzed Difrex.com page load time and found that the first response time was 765 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

difrex.com performance score

88

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

90/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

59/100

25%

SI (Speed Index)

Value2.2 s

99/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value3.8 s

90/100

10%

Network Requests Diagram

difrex.com

765 ms

reset.css

50 ms

black.css

78 ms

jquery.min.js

185 ms

twitter.min.js

83 ms

Our browser made a total of 9 requests to load all elements on the main page. We found that all of those requests were addressed to Difrex.com and no external sources were called. The less responsive or slowest element that took the longest time to load (765 ms) belongs to the original domain Difrex.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 73.0 kB (65%)

Content Size

112.4 kB

After Optimization

39.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Difrex.com main page is 112.4 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Javascripts take 97.8 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 994 B

  • Original 1.5 kB
  • After minification 1.2 kB
  • After compression 465 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 page needs HTML code to be minified as it can gain 237 B, which is 16% 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 994 B or 68% of the original size.

Image Optimization

-58%

Potential reduce by 3.4 kB

  • Original 5.9 kB
  • After minification 2.4 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, Difrex needs image optimization as it can save up to 3.4 kB or 58% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-65%

Potential reduce by 63.2 kB

  • Original 97.8 kB
  • After minification 97.3 kB
  • After compression 34.6 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 63.2 kB or 65% of the original size.

CSS Optimization

-75%

Potential reduce by 5.4 kB

  • Original 7.2 kB
  • After minification 4.8 kB
  • After compression 1.8 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. Difrex.com needs all CSS files to be minified and compressed as it can save up to 5.4 kB or 75% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

8

After Optimization

8

  • Images
  • JavaScript
  • CSS

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Difrex. According to our analytics all requests are already optimized.

Network Requests Diagram

difrex.com

difrex.com

765 ms

reset.css

reset.css

50 ms

black.css

black.css

78 ms

jquery.min.js

jquery.min.js

185 ms

twitter.min.js

twitter.min.js

83 ms

theme.js

theme.js

82 ms

bg.png

bg.png

42 ms

shadow.png

shadow.png

44 ms

icon-contact.png

icon-contact.png

45 ms

Accessibility Review

difrex.com accessibility score

83

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

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

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

difrex.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

difrex.com SEO score

77

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

High

robots.txt is not valid

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 doesn't use legible font sizes

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 Difrex.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 Difrex.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

difrex.com

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