Access 3nbio.en.alibaba.com. Suzhou 3N Biological Technology Co., Ltd. - 3N Contact Lenses Cleaner, 3N Contact Lenses Case

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

46/100

25%

SI (Speed Index)

Value3.6 s

87/100

10%

TBT (Total Blocking Time)

Value2,210 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.5 s

23/100

10%

3nbio.en.alibaba.com

211 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to 3nbio.en.alibaba.com and no external sources were called. The less responsive or slowest element that took the longest time to load (211 ms) belongs to the original domain 3nbio.en.alibaba.com.

Content Size

15.4 MB

After Optimization

13.8 MB

In fact, the total size of 3nbio.en.alibaba.com main page is 15.4 MB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Images take 14.3 MB which makes up the majority of the site volume.

HTML Optimization

-15%

Potential reduce by 6 B

Original 39 B
After minification 39 B
After compression 33 B

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 B or 15% of the original size.

Image Optimization

-5%

Potential reduce by 709.8 kB

Original 14.3 MB
After minification 13.6 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. 3N Bio En Alibaba images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 291.5 kB

Original 523.4 kB
After minification 523.3 kB
After compression 231.8 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 291.5 kB or 56% of the original size.

CSS Optimization

-94%

Potential reduce by 547.5 kB

Original 580.0 kB
After minification 183.4 kB
After compression 32.5 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. 3nbio.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 547.5 kB or 94% of the original size.

Requests Now

After Optimization

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

[aria-*] attributes do not match their roles

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

High

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

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

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

Language and Encoding

Language Detected

EN
Language Claimed

N/A
Encoding

N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 3nbio.en.alibaba.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 3nbio.en.alibaba.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

Open Graph description is not detected on the main page of 3N Bio En Alibaba. 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: