Tools & Wizards About Us

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

vt-iot.com

Home - VT Electron

Page Load Speed

14 sec in total

First Response

286 ms

Resources Loaded

13.3 sec

Page Rendered

406 ms

About Website

Welcome to vt-iot.com homepage info - get ready to check VT Iot best content right away, or after learning these important things about vt-iot.com

Visit vt-iot.com

Key Findings

We analyzed Vt-iot.com page load time and found that the first response time was 286 ms and then it took 13.7 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

vt-iot.com performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value9.9 s

0/100

25%

SI (Speed Index)

Value17.2 s

0/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value1.264

1/100

15%

TTI (Time to Interactive)

Value15.1 s

7/100

10%

Network Requests Diagram

vt-iot.com

286 ms

vtelectron.com

6105 ms

css2

29 ms

bootstrap-icons.css

625 ms

app.min.css

1320 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Vt-iot.com, 72% (33 requests) were made to Vtelectron.com and 22% (10 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (6.1 sec) relates to the external source Vtelectron.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 738.9 kB (51%)

Content Size

1.5 MB

After Optimization

715.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vt-iot.com main page is 1.5 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. 60% of websites need less resources to load. Images take 561.8 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 33.4 kB

  • Original 43.8 kB
  • After minification 42.0 kB
  • After compression 10.4 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 33.4 kB or 76% of the original size.

Image Optimization

-8%

Potential reduce by 43.0 kB

  • Original 561.8 kB
  • After minification 518.8 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. VT Iot images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 214.2 kB

  • Original 328.1 kB
  • After minification 328.1 kB
  • After compression 113.9 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 214.2 kB or 65% of the original size.

CSS Optimization

-86%

Potential reduce by 448.2 kB

  • Original 520.6 kB
  • After minification 496.4 kB
  • After compression 72.4 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. Vt-iot.com needs all CSS files to be minified and compressed as it can save up to 448.2 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (41%)

Requests Now

34

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of VT Iot. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

vt-iot.com accessibility score

93

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

vt-iot.com best practices score

92

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

Page has valid source maps

SEO Factors

vt-iot.com SEO score

93

Search Engine Optimization Advices

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 Vt-iot.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 Vt-iot.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

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