Report Summary

  • 64

    Performance

    Renders faster than
    78% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

ydaultrasonics.com

Beijing Ultrasonic: Ultrasonic Cleaner, Generator, Transducer, Humidifier & Piezoceramics

Page Load Speed

6.8 sec in total

First Response

1.2 sec

Resources Loaded

5.3 sec

Page Rendered

264 ms

ydaultrasonics.com screenshot

About Website

Click here to check amazing Yda Ultrasonic S content. Otherwise, check out these important facts you probably never knew about ydaultrasonics.com

Beijing Ultrasonic is the world's leading supplier of ultrasonic technology. Ultrasonic cleaner, ultrasonic generator, ultrasonic transducer, ultrasonic humidifier, ultrasonic homogenizer (sonica...

Visit ydaultrasonics.com

Key Findings

We analyzed Ydaultrasonics.com page load time and found that the first response time was 1.2 sec and then it took 5.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

ydaultrasonics.com performance score

64

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value4.2 s

77/100

10%

TBT (Total Blocking Time)

Value160 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value6.0 s

64/100

10%

Network Requests Diagram

www.ydaultrasonics.com

1191 ms

style.css

202 ms

cufon-yui.js

200 ms

Carto.font.js

267 ms

gdsr.css.php

416 ms

Our browser made a total of 72 requests to load all elements on the main page. We found that 61% of them (44 requests) were addressed to the original Ydaultrasonics.com, 11% (8 requests) were made to Apis.google.com and 4% (3 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Ydaultrasonics.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 443.3 kB (27%)

Content Size

1.6 MB

After Optimization

1.2 MB

In fact, the total size of Ydaultrasonics.com main page is 1.6 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. 60% of websites need less resources to load. Images take 962.8 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 64.1 kB

  • Original 88.5 kB
  • After minification 86.7 kB
  • After compression 24.5 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 64.1 kB or 72% of the original size.

Image Optimization

-0%

Potential reduce by 714 B

  • Original 962.8 kB
  • After minification 962.1 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. Yda Ultrasonic S images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 334.8 kB

  • Original 509.7 kB
  • After minification 508.4 kB
  • After compression 174.9 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 334.8 kB or 66% of the original size.

CSS Optimization

-81%

Potential reduce by 43.8 kB

  • Original 53.9 kB
  • After minification 41.7 kB
  • After compression 10.1 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. Ydaultrasonics.com needs all CSS files to be minified and compressed as it can save up to 43.8 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 45 (66%)

Requests Now

68

After Optimization

23

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yda Ultrasonic S. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

ydaultrasonics.com accessibility score

80

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.

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

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

ydaultrasonics.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

ydaultrasonics.com SEO score

97

Search Engine Optimization Advices

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 Ydaultrasonics.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 Ydaultrasonics.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 Yda Ultrasonic S. 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: