Tools & Wizards About Us
slchemtech.com screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    72% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

slchemtech.com

Ethyl Acetate Plant, Butyl Acetate Plant, Fixed Bed Process, Hydrogen Peroxide Plant Supplier

Page Load Speed

4.4 sec in total

First Response

164 ms

Resources Loaded

3.7 sec

Page Rendered

552 ms

slchemtech.com screenshot

About Website

Visit slchemtech.com now to see the best up-to-date Slchemtech content and also check out these interesting facts you probably never knew about slchemtech.com

As an ECP contractor in China, SL Tech focus on providing Chinese advanced coal chemical, petro chemical and natural gas chemical technology including hydrogen peroxide technology, Ethyl Acetate Plant...

Visit slchemtech.com

Key Findings

We analyzed Slchemtech.com page load time and found that the first response time was 164 ms and then it took 4.2 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

slchemtech.com performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

75/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

29/100

25%

SI (Speed Index)

Value3.3 s

90/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.425

22/100

15%

TTI (Time to Interactive)

Value11.2 s

20/100

10%

Network Requests Diagram

slchemtech.com

164 ms

www.slchemtech.com

242 ms

index.js

33 ms

jquery.js

103 ms

js

144 ms

Our browser made a total of 85 requests to load all elements on the main page. We found that 72% of them (61 requests) were addressed to the original Slchemtech.com, 26% (22 requests) were made to Chat.chukouplus.com and 2% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Chat.chukouplus.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 81.0 kB (9%)

Content Size

932.5 kB

After Optimization

851.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Slchemtech.com main page is 932.5 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. 50% of websites need less resources to load. Images take 716.9 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 37.4 kB

  • Original 47.5 kB
  • After minification 44.3 kB
  • After compression 10.1 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 37.4 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 283 B

  • Original 716.9 kB
  • After minification 716.7 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. Slchemtech images are well optimized though.

JavaScript Optimization

-26%

Potential reduce by 42.5 kB

  • Original 161.3 kB
  • After minification 161.3 kB
  • After compression 118.8 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 42.5 kB or 26% of the original size.

CSS Optimization

-13%

Potential reduce by 861 B

  • Original 6.8 kB
  • After minification 6.8 kB
  • After compression 5.9 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. Slchemtech.com needs all CSS files to be minified and compressed as it can save up to 861 B or 13% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (31%)

Requests Now

70

After Optimization

48

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Slchemtech. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

slchemtech.com

slchemtech.com

164 ms

www.slchemtech.com

www.slchemtech.com

242 ms

index.js

index.js

33 ms

jquery.js

jquery.js

103 ms

js

js

144 ms

jquery.SuperSlide.js

jquery.SuperSlide.js

95 ms

lunbo2.js

lunbo2.js

95 ms

top.js

top.js

94 ms

placeholder.js

placeholder.js

98 ms

kefu.js

kefu.js

141 ms

form1.js

form1.js

142 ms

gtm.js

gtm.js

80 ms

5fc8485e36d05.png

5fc8485e36d05.png

52 ms

navbei.jpg

navbei.jpg

50 ms

shutiao.jpg

shutiao.jpg

53 ms

sousuo.jpg

sousuo.jpg

53 ms

navtiao.png

navtiao.png

51 ms

xiala.png

xiala.png

50 ms

baleft.png

baleft.png

124 ms

baright.png

baright.png

124 ms

5fc8852792324_.webp

5fc8852792324_.webp

190 ms

5fc88548a4b97_.webp

5fc88548a4b97_.webp

208 ms

5fc885b1411c6_.webp

5fc885b1411c6_.webp

146 ms

5fc885ea9a0bf_.webp

5fc885ea9a0bf_.webp

178 ms

m1tu.jpg

m1tu.jpg

160 ms

m1mor.png

m1mor.png

124 ms

m2ren.png

m2ren.png

281 ms

6501165cb7ad0_.webp

6501165cb7ad0_.webp

311 ms

m2jiahao.png

m2jiahao.png

190 ms

6501154d5bdda_.webp

6501154d5bdda_.webp

551 ms

65011705c61ec_.webp

65011705c61ec_.webp

252 ms

20170307114505340_.webp

20170307114505340_.webp

224 ms

20170307113755804_.webp

20170307113755804_.webp

271 ms

20161116014536717_.webp

20161116014536717_.webp

286 ms

index.php

index.php

313 ms

facebook.jpg

facebook.jpg

303 ms

linkedin.jpg

linkedin.jpg

312 ms

pinterest.jpg

pinterest.jpg

316 ms

instagram.jpg

instagram.jpg

334 ms

youtube.jpg

youtube.jpg

343 ms

twitter.jpg

twitter.jpg

341 ms

reanod.jpg

reanod.jpg

341 ms

youlian.jpg

youlian.jpg

346 ms

kefu.jpg

kefu.jpg

365 ms

erweima.png

erweima.png

373 ms

erduo.png

erduo.png

372 ms

kes.jpg

kes.jpg

373 ms

init_kefu.js

init_kefu.js

1082 ms

error_html

error_html

526 ms

error_html

error_html

532 ms

error_html

error_html

598 ms

error_html

error_html

810 ms

error_html

error_html

803 ms

kewei.jpg

kewei.jpg

554 ms

error_html

error_html

748 ms

error_html

error_html

744 ms

weichat.jpg

weichat.jpg

535 ms

weibobo.jpg

weibobo.jpg

562 ms

error_html

error_html

544 ms

error_html

error_html

609 ms

error_html

error_html

981 ms

error_html

error_html

568 ms

error_html

error_html

478 ms

error_html

error_html

669 ms

kefu-logo.png

kefu-logo.png

212 ms

init_kefu.css

init_kefu.css

423 ms

index

index

756 ms

open.png

open.png

226 ms

kefu-logo2.png

kefu-logo2.png

227 ms

mobile-close.png

mobile-close.png

442 ms

jquery-1.11.3.min.js

jquery-1.11.3.min.js

427 ms

index.js

index.js

218 ms

webuploader.css

webuploader.css

301 ms

kefu_chat.css

kefu_chat.css

328 ms

placeholder.js

placeholder.js

443 ms

kefu_chat.js

kefu_chat.js

510 ms

jqurey-form.js

jqurey-form.js

761 ms

webuploader.js

webuploader.js

1068 ms

upload.js

upload.js

638 ms

upload2.js

upload2.js

660 ms

layer.js

layer.js

660 ms

file-img.png

file-img.png

282 ms

fine-file.png

fine-file.png

411 ms

commit.png

commit.png

438 ms

layer.css

layer.css

213 ms

Accessibility Review

slchemtech.com accessibility score

59

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Image elements do not have [alt] attributes

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>).

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

slchemtech.com best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

slchemtech.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

High

Document doesn't have a valid hreflang

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 Slchemtech.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 Slchemtech.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

slchemtech.com

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