Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 51

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 42

    SEO

    Google-friendlier than
    18% of websites

perceive3d.com

Perceive3D

Page Load Speed

3.4 sec in total

First Response

120 ms

Resources Loaded

3 sec

Page Rendered

280 ms

perceive3d.com screenshot

About Website

Welcome to perceive3d.com homepage info - get ready to check Perceive3D best content right away, or after learning these important things about perceive3d.com

P3D builds on advance knowledge in computer vision to offer innovative software features for improving visualization and assisting the surgeon during minimally invasive medical procedures

Visit perceive3d.com

Key Findings

We analyzed Perceive3d.com page load time and found that the first response time was 120 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 55% of websites can load faster.

Performance Metrics

perceive3d.com performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value17.4 s

0/100

25%

SI (Speed Index)

Value12.0 s

4/100

10%

TBT (Total Blocking Time)

Value1,040 ms

25/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value16.7 s

5/100

10%

Network Requests Diagram

en

120 ms

en

194 ms

css

50 ms

min.css

246 ms

bootstrap-combined.no-icons.min.css

44 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 42% of them (20 requests) were addressed to the original Perceive3d.com, 21% (10 requests) were made to Fonts.gstatic.com and 10% (5 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (873 ms) belongs to the original domain Perceive3d.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 186.1 kB (17%)

Content Size

1.1 MB

After Optimization

899.7 kB

In fact, the total size of Perceive3d.com main page is 1.1 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 633.5 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 17.3 kB

  • Original 22.9 kB
  • After minification 17.8 kB
  • After compression 5.6 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 5.1 kB, which is 22% 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 17.3 kB or 76% of the original size.

Image Optimization

-10%

Potential reduce by 65.0 kB

  • Original 633.5 kB
  • After minification 568.6 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. Perceive3D images are well optimized though.

JavaScript Optimization

-30%

Potential reduce by 100.0 kB

  • Original 332.2 kB
  • After minification 327.7 kB
  • After compression 232.2 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 100.0 kB or 30% of the original size.

CSS Optimization

-4%

Potential reduce by 3.8 kB

  • Original 97.1 kB
  • After minification 97.1 kB
  • After compression 93.3 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. Perceive3d.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 15 (43%)

Requests Now

35

After Optimization

20

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Perceive3D. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

perceive3d.com accessibility score

51

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.

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

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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.

Best Practices

perceive3d.com best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

perceive3d.com SEO score

42

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Perceive3d.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 Perceive3d.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 data is detected on the main page of Perceive3D. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: