Tools & Wizards About Us
rwchem.com screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

rwchem.com

Organic Intermediates, Noble Metal Catalyst, Nano Materials - Runwu

Page Load Speed

6 sec in total

First Response

1.1 sec

Resources Loaded

4.4 sec

Page Rendered

373 ms

rwchem.com screenshot

About Website

Click here to check amazing Rwchem content. Otherwise, check out these important facts you probably never knew about rwchem.com

Shanghai Runwu Chemical Technology Co. Ltd is a chemical enterprise product R & D, production, sales, as one of the detection.

Visit rwchem.com

Key Findings

We analyzed Rwchem.com page load time and found that the first response time was 1.1 sec and then it took 4.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

rwchem.com performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

38/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value2,540 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.07

96/100

15%

TTI (Time to Interactive)

Value8.5 s

38/100

10%

Network Requests Diagram

www.rwchem.com

1138 ms

lite-yt-embed.js

1030 ms

lite-yt-embed.css

1094 ms

style1.css

493 ms

public.css

348 ms

Our browser made a total of 58 requests to load all elements on the main page. We found that 76% of them (44 requests) were addressed to the original Rwchem.com, 19% (11 requests) were made to Globalso.site and 3% (2 requests) were made to Cdncn.goodao.net. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Rwchem.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 206.3 kB (12%)

Content Size

1.7 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rwchem.com main page is 1.7 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. 50% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 47.7 kB

  • Original 58.0 kB
  • After minification 55.0 kB
  • After compression 10.3 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 47.7 kB or 82% of the original size.

Image Optimization

-9%

Potential reduce by 112.1 kB

  • Original 1.3 MB
  • After minification 1.2 MB

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. Rwchem images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 25.4 kB

  • Original 229.7 kB
  • After minification 229.7 kB
  • After compression 204.3 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 25.4 kB or 11% of the original size.

CSS Optimization

-28%

Potential reduce by 21.1 kB

  • Original 74.0 kB
  • After minification 73.9 kB
  • After compression 52.9 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. Rwchem.com needs all CSS files to be minified and compressed as it can save up to 21.1 kB or 28% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (35%)

Requests Now

51

After Optimization

33

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rwchem. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.rwchem.com

www.rwchem.com

1138 ms

lite-yt-embed.js

lite-yt-embed.js

1030 ms

lite-yt-embed.css

lite-yt-embed.css

1094 ms

style1.css

style1.css

493 ms

public.css

public.css

348 ms

translator-dropdown-m.css

translator-dropdown-m.css

89 ms

form.js

form.js

491 ms

jquery1.min.js

jquery1.min.js

502 ms

common1.js

common1.js

357 ms

livechat.js

livechat.js

491 ms

stats_init.js

stats_init.js

1057 ms

jquery.js

jquery.js

235 ms

jquery-migrate.min.js

jquery-migrate.min.js

157 ms

translator-dropdown.js

translator-dropdown.js

233 ms

086c81fd1.png

086c81fd1.png

226 ms

9ac5a017.jpg

9ac5a017.jpg

413 ms

048e8850.jpg

048e8850.jpg

471 ms

6b5c49db3.jpg

6b5c49db3.jpg

476 ms

7701b5173-300x300.jpg

7701b5173-300x300.jpg

302 ms

8d9d4c2f3-300x300.jpg

8d9d4c2f3-300x300.jpg

308 ms

c2cd4bbc-300x300.jpg

c2cd4bbc-300x300.jpg

302 ms

8777771d1-300x300.jpg

8777771d1-300x300.jpg

377 ms

5a8a75a9-300x300.jpg

5a8a75a9-300x300.jpg

380 ms

44c22ea32-300x300.jpg

44c22ea32-300x300.jpg

381 ms

fed45ade1-300x300.jpg

fed45ade1-300x300.jpg

449 ms

cc984cd32-300x300.jpg

cc984cd32-300x300.jpg

455 ms

3cf272e0.jpg

3cf272e0.jpg

528 ms

1006f77a.jpg

1006f77a.jpg

478 ms

6e2c2351.jpg

6e2c2351.jpg

593 ms

icon04.png

icon04.png

531 ms

news01.jpg

news01.jpg

546 ms

412f39281.png

412f39281.png

567 ms

a3f91cf31.png

a3f91cf31.png

573 ms

7189078c1.png

7189078c1.png

616 ms

title_pic.png

title_pic.png

624 ms

2024310_inquiry_form_wwwrwchemcom

2024310_inquiry_form_wwwrwchemcom

221 ms

all-m.gif

all-m.gif

565 ms

web_icon.png

web_icon.png

582 ms

048e88501.jpg

048e88501.jpg

611 ms

newmore.png

newmore.png

607 ms

icons01.png

icons01.png

631 ms

close.png

close.png

636 ms

show_btn.png

show_btn.png

639 ms

search_btn_close.png

search_btn_close.png

657 ms

2024310_inquiry_livechat_wwwrwchemcom

2024310_inquiry_livechat_wwwrwchemcom

224 ms

Roboto-Bold.ttf

Roboto-Bold.ttf

1112 ms

Roboto-Regular.ttf

Roboto-Regular.ttf

980 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

766 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

692 ms

ebrima.ttf

ebrima.ttf

704 ms

admin-ajax.php

admin-ajax.php

510 ms

from_livechat.css

from_livechat.css

3 ms

jquery.min.js

jquery.min.js

4 ms

layer.js

layer.js

18 ms

group_oper.js

group_oper.js

19 ms

validform.min.js

validform.min.js

16 ms

jquery.cookie.js

jquery.cookie.js

19 ms

layer.css

layer.css

8 ms

Accessibility Review

rwchem.com accessibility score

75

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

rwchem.com best practices score

58

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

rwchem.com SEO score

75

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

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

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 Rwchem.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 Rwchem.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

rwchem.com

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