Tools & Wizards About Us
topinst.com screenshot

Report Summary

  • 26

    Performance

    Renders faster than
    45% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

topinst.com

Tops Instruments | 香港測試儀器供應商

Page Load Speed

2.1 sec in total

First Response

318 ms

Resources Loaded

1.7 sec

Page Rendered

66 ms

topinst.com screenshot

About Website

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

Tops Instruments Supplies Co. has been providing the highest quality range of testing instruments to a wide spectrum of Hong Kong and Macau industries. Tel : 852-3796 5085

Visit topinst.com

Key Findings

We analyzed Topinst.com page load time and found that the first response time was 318 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

topinst.com performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

30/100

25%

SI (Speed Index)

Value11.1 s

6/100

10%

TBT (Total Blocking Time)

Value5,220 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value25.8 s

0/100

10%

Network Requests Diagram

www.topinst.com

318 ms

minified.js

55 ms

focus-within-polyfill.js

53 ms

polyfill.min.js

53 ms

8875.e26292eb.bundle.min.js

224 ms

Our browser made a total of 126 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Topinst.com, 81% (102 requests) were made to Static.wixstatic.com and 11% (14 requests) were made to Static.parastorage.com. The less responsive or slowest element that took the longest time to load (318 ms) belongs to the original domain Topinst.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (62%)

Content Size

2.2 MB

After Optimization

837.7 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Topinst.com main page is 2.2 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. 40% of websites need less resources to load. HTML takes 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 1.3 MB

  • Original 1.7 MB
  • After minification 1.7 MB
  • After compression 332.6 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. 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 1.3 MB or 80% of the original size.

Image Optimization

-9%

Potential reduce by 23.4 kB

  • Original 261.3 kB
  • After minification 237.8 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. Topinst images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 4.3 kB

  • Original 271.5 kB
  • After minification 271.5 kB
  • After compression 267.2 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 27 (23%)

Requests Now

119

After Optimization

92

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 119 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Topinst. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.topinst.com

www.topinst.com

318 ms

minified.js

minified.js

55 ms

focus-within-polyfill.js

focus-within-polyfill.js

53 ms

polyfill.min.js

polyfill.min.js

53 ms

8875.e26292eb.bundle.min.js

8875.e26292eb.bundle.min.js

224 ms

thunderbolt-commons.3940b5a1.bundle.min.js

thunderbolt-commons.3940b5a1.bundle.min.js

206 ms

main.d98de0fd.bundle.min.js

main.d98de0fd.bundle.min.js

210 ms

main.renderer.1d21f023.bundle.min.js

main.renderer.1d21f023.bundle.min.js

210 ms

lodash.min.js

lodash.min.js

210 ms

react.production.min.js

react.production.min.js

228 ms

react-dom.production.min.js

react-dom.production.min.js

230 ms

browser-deprecation.bundle.es5.js

browser-deprecation.bundle.es5.js

228 ms

siteTags.bundle.min.js

siteTags.bundle.min.js

227 ms

TOPS-logo-W-08.png

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186 ms

bundle.min.js

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250 ms

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135 ms

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222 ms

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224 ms

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291 ms

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292 ms

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38 ms

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Vibration%20Analyzer%20VM%2040C-1.jpg

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deprecation-en.v5.html

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bolt-performance

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Accessibility Review

topinst.com accessibility score

91

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

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

Best Practices

topinst.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

Page has valid source maps

SEO Factors

topinst.com SEO score

91

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

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

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Topinst.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Chinese language. Our system also found out that Topinst.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

topinst.com

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