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redwinoptics.en.alibaba.com screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

redwinoptics.en.alibaba.com

Page Load Speed

3.5 sec in total

First Response

211 ms

Resources Loaded

2.9 sec

Page Rendered

366 ms

redwinoptics.en.alibaba.com screenshot

About Website

Welcome to redwinoptics.en.alibaba.com homepage info - get ready to check Redwinoptics En Alibaba best content for China right away, or after learning these important things about redwinoptics.en.alibaba.com

Nantong Red Win Optics Co., Ltd. Products:Rifle Scope,Red Dot Sight

Visit redwinoptics.en.alibaba.com

Key Findings

We analyzed Redwinoptics.en.alibaba.com page load time and found that the first response time was 211 ms and then it took 3.3 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

redwinoptics.en.alibaba.com performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

77/100

10%

LCP (Largest Contentful Paint)

Value8.8 s

1/100

25%

SI (Speed Index)

Value8.1 s

21/100

10%

TBT (Total Blocking Time)

Value9,490 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.012

100/100

15%

TTI (Time to Interactive)

Value22.8 s

1/100

10%

Network Requests Diagram

redwinoptics.en.alibaba.com

211 ms

redwinoptics.en.alibaba.com

181 ms

47 ms

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

224 ms

index.js

270 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that 7% of them (2 requests) were addressed to the original Redwinoptics.en.alibaba.com, 52% (15 requests) were made to S.alicdn.com and 10% (3 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (2.3 sec) relates to the external source S.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 748.3 kB (44%)

Content Size

1.7 MB

After Optimization

954.5 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Redwinoptics.en.alibaba.com main page is 1.7 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. 25% of websites need less resources to load. Javascripts take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 205.3 kB

  • Original 269.8 kB
  • After minification 269.1 kB
  • After compression 64.5 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 205.3 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 4.8 kB
  • After minification 4.8 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. Redwinoptics En Alibaba images are well optimized though.

JavaScript Optimization

-38%

Potential reduce by 542.9 kB

  • Original 1.4 MB
  • After minification 1.4 MB
  • After compression 885.2 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 542.9 kB or 38% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (63%)

Requests Now

27

After Optimization

10

  • AJAX
  • Images
  • JavaScript

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Redwinoptics En Alibaba. 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 as a result speed up the page load time.

Network Requests Diagram

redwinoptics.en.alibaba.com

redwinoptics.en.alibaba.com

211 ms

redwinoptics.en.alibaba.com

redwinoptics.en.alibaba.com

181 ms

47 ms

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

224 ms

index.js

index.js

270 ms

index.js

index.js

223 ms

renderHeader.js

renderHeader.js

250 ms

H70fd237359694fdfb431add6bdc16081i.png

H70fd237359694fdfb431add6bdc16081i.png

865 ms

Haa3cd6b8a6d84d0f8c0bc5ac9b773c62i.png

Haa3cd6b8a6d84d0f8c0bc5ac9b773c62i.png

584 ms

Hc69156c68da44aceb6bbba5348bb69bbk.png

Hc69156c68da44aceb6bbba5348bb69bbk.png

1785 ms

H6b2e21f9cea44c76bec2d92f50ba672bu.jpg

H6b2e21f9cea44c76bec2d92f50ba672bu.jpg

623 ms

Hce8abf590d394e0ab060e0a52304bf28B.jpg

Hce8abf590d394e0ab060e0a52304bf28B.jpg

664 ms

Hfdaac5d39cfb4ddfae120d8b3d803938T.jpg

Hfdaac5d39cfb4ddfae120d8b3d803938T.jpg

1180 ms

H969985a7c47b4662abe323dfae1e10d1j.jpg

H969985a7c47b4662abe323dfae1e10d1j.jpg

584 ms

H50942c3c14a64039838742fb74c30b7d4.jpg

H50942c3c14a64039838742fb74c30b7d4.jpg

1752 ms

H8e722d904d8f4a7590bb5cd58fc709b19.jpg

H8e722d904d8f4a7590bb5cd58fc709b19.jpg

1711 ms

Hc92b64bf5c504075a70b48163d1782a2W.jpg

Hc92b64bf5c504075a70b48163d1782a2W.jpg

1197 ms

H2857a7222fc1427abb2e1db6f1536a40E.jpg

H2857a7222fc1427abb2e1db6f1536a40E.jpg

1439 ms

H243ad1e623c347b4bb6d0d4daa00fd48c.jpg

H243ad1e623c347b4bb6d0d4daa00fd48c.jpg

2323 ms

awsc.js

awsc.js

68 ms

15 ms

7.gif

7.gif

33 ms

et_n.js

et_n.js

31 ms

um.js

um.js

101 ms

wu.json

wu.json

389 ms

um.json

um.json

55 ms

getUmid.do

getUmid.do

107 ms

eg.js

eg.js

3 ms

index.js

index.js

160 ms

Accessibility Review

redwinoptics.en.alibaba.com accessibility score

66

Accessibility Issues

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

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

redwinoptics.en.alibaba.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

redwinoptics.en.alibaba.com SEO score

86

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 uses legible font sizes

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 Redwinoptics.en.alibaba.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 Redwinoptics.en.alibaba.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

redwinoptics.en.alibaba.com

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