Access isutech.cn.

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value9.6 s

0/100

25%

SI (Speed Index)

Value17.8 s

0/100

10%

TBT (Total Blocking Time)

Value15,320 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.035

100/100

15%

TTI (Time to Interactive)

Value31.5 s

0/100

10%

isutech.cn

380 ms

isutech.cn

244 ms

ismarttuya.com

252 ms

ismarttuya.com

5450 ms

wp-emoji-release.min.js

223 ms

Our browser made a total of 123 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Isutech.cn, 95% (117 requests) were made to Ismarttuya.com and 2% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (5.5 sec) relates to the external source Ismarttuya.com.

Content Size

1.3 MB

After Optimization

1.1 MB

In fact, the total size of Isutech.cn main page is 1.3 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. 40% of websites need less resources to load. Images take 781.2 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 144.4 kB

Original 170.5 kB
After minification 163.7 kB
After compression 26.1 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 144.4 kB or 85% of the original size.

Image Optimization

-1%

Potential reduce by 10.5 kB

Original 781.2 kB
After minification 770.7 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. Isutech images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 150 B

Original 141.8 kB
After minification 141.8 kB
After compression 141.6 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 918 B

Original 212.2 kB
After minification 211.8 kB
After compression 211.3 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. Isutech.cn has all CSS files already compressed.

Requests Now

108

After Optimization

The browser has sent 108 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Isutech. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 33 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

Document doesn't have a <title> element

High

Links do not have a discernible name

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Document doesn't have a <title> element

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

High

Page is blocked from indexing

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

EN
Language Claimed

ZH
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Isutech.cn can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Chinese language. Our system also found out that Isutech.cn 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

isutech.cn

Open Graph data is detected on the main page of Isutech. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

isutech.cn

isutech.cn

ismarttuya.com

ismarttuya.com

wp-emoji-release.min.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

isutech.cn

isutech.cn

ismarttuya.com

ismarttuya.com

wp-emoji-release.min.js

gtranslate-style24.css

main.css

style.min.css

wc-blocks-vendors-style.css

wc-blocks-style.css

elementor.css

woocommerce-layout.css

woocommerce.css

frontend.min.css

flatpickr.min.css

select2.min.css

style.min.css

theme.min.css

frontend-lite.min.css

post-24.css

elementor-icons.min.css

frontend-lite.min.css

uael-frontend.min.css

all.min.css

v4-shims.min.css

post-46.css

post-34.css

post-38.css

post-936.css

style.css

css

fontawesome.min.css

solid.min.css

brands.min.css

jquery.min.js

jquery-migrate.min.js

flatpickr.min.js

select2.min.js

v4-shims.min.js

widget-nav-menu.min.css

widget-icon-box.min.css

animations.min.css

app.js

jquery.blockUI.min.js