Report Summary

  • 63

    Performance

    Renders faster than
    77% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

boseresearch.com

High Voltage and Switching Mode Power Supply Design: Bose Research

Page Load Speed

2.2 sec in total

First Response

282 ms

Resources Loaded

1.6 sec

Page Rendered

293 ms

boseresearch.com screenshot

About Website

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

Bose Research provides R&D services and outsourcing for the development of electronic high voltage and switching mode power supply design.

Visit boseresearch.com

Key Findings

We analyzed Boseresearch.com page load time and found that the first response time was 282 ms and then it took 1.9 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

boseresearch.com performance score

63

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

75/100

10%

LCP (Largest Contentful Paint)

Value8.9 s

1/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.032

100/100

15%

TTI (Time to Interactive)

Value7.2 s

50/100

10%

Network Requests Diagram

boseresearch.com

282 ms

core.css

141 ms

layout.css

152 ms

lightbox.css

154 ms

bootstrap.min.css

191 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 79% of them (30 requests) were addressed to the original Boseresearch.com, 8% (3 requests) were made to Maxcdn.bootstrapcdn.com and 8% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (794 ms) belongs to the original domain Boseresearch.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 77.7 kB (44%)

Content Size

177.9 kB

After Optimization

100.1 kB

In fact, the total size of Boseresearch.com main page is 177.9 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 55% of websites need less resources to load. Javascripts take 148.5 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 16.7 kB

  • Original 21.7 kB
  • After minification 16.3 kB
  • After compression 5.0 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 5.4 kB, which is 25% 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 16.7 kB or 77% of the original size.

JavaScript Optimization

-39%

Potential reduce by 58.4 kB

  • Original 148.5 kB
  • After minification 138.6 kB
  • After compression 90.1 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 58.4 kB or 39% of the original size.

CSS Optimization

-35%

Potential reduce by 2.6 kB

  • Original 7.7 kB
  • After minification 7.7 kB
  • After compression 5.0 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. Boseresearch.com needs all CSS files to be minified and compressed as it can save up to 2.6 kB or 35% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (36%)

Requests Now

33

After Optimization

21

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bose Research. 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 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

boseresearch.com accessibility score

65

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

boseresearch.com best practices score

50

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

boseresearch.com SEO score

62

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

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 Boseresearch.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 Boseresearch.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 Bose Research. 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: