Report Summary

  • 26

    Performance

    Renders faster than
    46% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 57% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

viomi.com

Viomi 5G IoT Home| Smart Home Appliances and Home Automation

Page Load Speed

3.9 sec in total

First Response

366 ms

Resources Loaded

2.6 sec

Page Rendered

911 ms

viomi.com screenshot

About Website

Click here to check amazing Viomi content for Hong Kong. Otherwise, check out these important facts you probably never knew about viomi.com

Viomi makes your home more livable, with over 60 smart home appliances. Enjoy hands-free and carefree life with home automation system.

Visit viomi.com

Key Findings

We analyzed Viomi.com page load time and found that the first response time was 366 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

viomi.com performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

12/100

10%

LCP (Largest Contentful Paint)

Value19.3 s

0/100

25%

SI (Speed Index)

Value28.1 s

0/100

10%

TBT (Total Blocking Time)

Value910 ms

31/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value32.9 s

0/100

10%

Network Requests Diagram

viomi.com

366 ms

www.viomi.com

716 ms

font-awesome.min.css

139 ms

swiper.min.css

269 ms

animate.css

279 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 53% of them (46 requests) were addressed to the original Viomi.com, 28% (24 requests) were made to Web-usa.oss-us-west-1.aliyuncs.com and 3% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (982 ms) relates to the external source Web-usa.oss-us-west-1.aliyuncs.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.8 MB (11%)

Content Size

15.9 MB

After Optimization

14.1 MB

In fact, the total size of Viomi.com main page is 15.9 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. 65% of websites need less resources to load. Images take 14.7 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 56.1 kB

  • Original 67.7 kB
  • After minification 47.2 kB
  • After compression 11.6 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. This page needs HTML code to be minified as it can gain 20.5 kB, which is 30% 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 56.1 kB or 83% of the original size.

Image Optimization

-6%

Potential reduce by 875.8 kB

  • Original 14.7 MB
  • After minification 13.8 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. Viomi images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 492.4 kB

  • Original 730.6 kB
  • After minification 701.9 kB
  • After compression 238.1 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 492.4 kB or 67% of the original size.

CSS Optimization

-89%

Potential reduce by 389.4 kB

  • Original 436.9 kB
  • After minification 363.1 kB
  • After compression 47.5 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. Viomi.com needs all CSS files to be minified and compressed as it can save up to 389.4 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (36%)

Requests Now

81

After Optimization

52

The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Viomi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

viomi.com accessibility score

84

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

viomi.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

viomi.com SEO score

92

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Viomi.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Viomi.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

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