Tools & Wizards About Us
bestlabsonline.com screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 45

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

bestlabsonline.com

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Page Load Speed

13.3 sec in total

First Response

169 ms

Resources Loaded

12.9 sec

Page Rendered

291 ms

bestlabsonline.com screenshot

About Website

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

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Visit bestlabsonline.com

Key Findings

We analyzed Bestlabsonline.com page load time and found that the first response time was 169 ms and then it took 13.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

bestlabsonline.com performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value27.9 s

0/100

25%

SI (Speed Index)

Value10.0 s

9/100

10%

TBT (Total Blocking Time)

Value210 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0.48

18/100

15%

TTI (Time to Interactive)

Value18.9 s

3/100

10%

Network Requests Diagram

bestlabsonline.com

169 ms

www.bestlabsonline.com

204 ms

jquery.min.js

69 ms

font-awesome.min2023.css

190 ms

slick2023.css

191 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 30% of them (21 requests) were addressed to the original Bestlabsonline.com, 33% (23 requests) were made to Jd.hnust.edu.cn and 27% (19 requests) were made to Tp.xinxiyidiantong.com. The less responsive or slowest element that took the longest time to load (10.2 sec) relates to the external source Tp.xinxiyidiantong.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 831.5 kB (9%)

Content Size

9.8 MB

After Optimization

8.9 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Bestlabsonline.com main page is 9.8 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 9.7 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 6.7 kB

  • Original 8.5 kB
  • After minification 8.4 kB
  • After compression 1.8 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 6.7 kB or 79% of the original size.

Image Optimization

-8%

Potential reduce by 823.6 kB

  • Original 9.7 MB
  • After minification 8.9 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. Bestlabsonline images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 1.1 kB

  • Original 19.7 kB
  • After minification 19.7 kB
  • After compression 18.6 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.

Requests Breakdown

Number of requests can be reduced by 14 (22%)

Requests Now

64

After Optimization

50

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bestlabsonline. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

bestlabsonline.com

bestlabsonline.com

169 ms

www.bestlabsonline.com

www.bestlabsonline.com

204 ms

jquery.min.js

jquery.min.js

69 ms

font-awesome.min2023.css

font-awesome.min2023.css

190 ms

slick2023.css

slick2023.css

191 ms

style2023.css

style2023.css

189 ms

index2023.css

index2023.css

172 ms

jquery-1.9.0.min.js

jquery-1.9.0.min.js

257 ms

html5.js

html5.js

170 ms

g_list.js

g_list.js

272 ms

slick2023.js

slick2023.js

272 ms

script2023.js

script2023.js

286 ms

jquery.flexslider-min.js

jquery.flexslider-min.js

287 ms

sj.js

sj.js

903 ms

fcl.php

fcl.php

1324 ms

push.js

push.js

551 ms

iconfont.woff

iconfont.woff

363 ms

site

site

362 ms

channel

channel

355 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

498 ms

code.png

code.png

2891 ms

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7f8ff6f8a4934accb636ba702039b19d.png

5677 ms

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4840 ms

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4556 ms

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6471 ms

logo2023.png

logo2023.png

4631 ms

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5829 ms

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5189 ms

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5756 ms

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5222 ms

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6302 ms

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5455 ms

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5624 ms

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5749 ms

erweima_03.png

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5840 ms

banner_bg.png

banner_bg.png

5892 ms

title01_bg.png

title01_bg.png

5947 ms

banner_bg2.png

banner_bg2.png

5981 ms

content_li.png

content_li.png

6006 ms

flex_bg.png

flex_bg.png

6016 ms

iconfont.ttf

iconfont.ttf

113 ms

flex_hover.png

flex_hover.png

6037 ms

rt.png

rt.png

6044 ms

lf.png

lf.png

6122 ms

fontawesome-webfont.ttf

fontawesome-webfont.ttf

308 ms

fontawesome-webfont.svg

fontawesome-webfont.svg

454 ms

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4211 ms

jquery.la.min.js

jquery.la.min.js

69 ms

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5194 ms

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7359 ms

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4095 ms

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3741 ms

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7146 ms

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8806 ms

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7715 ms

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5656 ms

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6112 ms

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6726 ms

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7331 ms

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7695 ms

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7674 ms

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7693 ms

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7891 ms

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8846 ms

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10183 ms

js-sdk-pro.min.js

js-sdk-pro.min.js

574 ms

tj.js

tj.js

301 ms

collect

collect

1147 ms

collect

collect

1130 ms

Accessibility Review

bestlabsonline.com accessibility score

45

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

Image elements do not have [alt] attributes

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

bestlabsonline.com best practices score

67

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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

bestlabsonline.com SEO score

69

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

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 doesn't use legible font sizes

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bestlabsonline.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Bestlabsonline.com main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

bestlabsonline.com

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