Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 88

    SEO

    Google-friendlier than
    66% of websites

transoptics.com.cn

首页 - BTMT北京创思工贸有限公司官方网站

Page Load Speed

61.2 sec in total

First Response

17.1 sec

Resources Loaded

43.7 sec

Page Rendered

436 ms

transoptics.com.cn screenshot

About Website

Visit transoptics.com.cn now to see the best up-to-date Transoptics content and also check out these interesting facts you probably never knew about transoptics.com.cn

BTMT北京创思工贸有限公司始创于1998年,是一家在全球范围内提供高精度光学元器件解决方案和快速服务支持的创新型科技企业,拥有行业领先的独立研发、制造及销售能力。成立二十多年以来,创思潜心光学领域,研发和制造的优质高精度光学镜片和镜头组件,广泛应用于半导体、生物医疗、激光应用、精密测量、航空航天、智能装备等多个领域,与国内及全球顶尖光学企业达成战略伙伴关系,在诸多行业里持续为客户创造价值。

Visit transoptics.com.cn

Key Findings

We analyzed Transoptics.com.cn page load time and found that the first response time was 17.1 sec and then it took 44.2 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 10 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

transoptics.com.cn performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value9.9 s

0/100

25%

SI (Speed Index)

Value10.4 s

8/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value8.9 s

35/100

10%

Network Requests Diagram

transoptics.com.cn

17052 ms

common.css

8090 ms

style.css

7150 ms

jquery-1.7.1.min.js

14545 ms

jquery.cycle.all.js

12271 ms

Our browser made a total of 25 requests to load all elements on the main page. We found that all of those requests were addressed to Transoptics.com.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (19.9 sec) belongs to the original domain Transoptics.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 67.8 kB (77%)

Content Size

88.5 kB

After Optimization

20.8 kB

In fact, the total size of Transoptics.com.cn main page is 88.5 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Javascripts take 55.8 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 8.7 kB

  • Original 11.3 kB
  • After minification 8.5 kB
  • After compression 2.6 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 2.7 kB, which is 24% 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 8.7 kB or 77% of the original size.

Image Optimization

-15%

Potential reduce by 1.0 kB

  • Original 6.6 kB
  • After minification 5.6 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. Obviously, Transoptics needs image optimization as it can save up to 1.0 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-84%

Potential reduce by 46.6 kB

  • Original 55.8 kB
  • After minification 36.5 kB
  • After compression 9.2 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 46.6 kB or 84% of the original size.

CSS Optimization

-77%

Potential reduce by 11.4 kB

  • Original 14.9 kB
  • After minification 12.2 kB
  • After compression 3.4 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. Transoptics.com.cn needs all CSS files to be minified and compressed as it can save up to 11.4 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (21%)

Requests Now

14

After Optimization

11

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Transoptics. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

transoptics.com.cn accessibility score

82

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

transoptics.com.cn 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

transoptics.com.cn SEO score

88

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

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

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Transoptics.com.cn 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 Transoptics.com.cn 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 Transoptics. 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: