Tools & Wizards About Us
parts.jacobsvehiclesystems.com screenshot

Report Summary

  • 70

    Performance

    Renders faster than
    81% of other websites

  • 52

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

parts.jacobsvehiclesystems.com

Global Leader in Engine Braking | Jacobs Vehicle Systems

Page Load Speed

331 ms in total

First Response

108 ms

Resources Loaded

152 ms

Page Rendered

71 ms

parts.jacobsvehiclesystems.com screenshot

About Website

Welcome to parts.jacobsvehiclesystems.com homepage info - get ready to check Parts Jacobs Vehicle Systems best content for United States right away, or after learning these important things about parts.jacobsvehiclesystems.com

As pioneers in engine braking and valve actuation technologies, we work with trucking OEMs worldwide. Since 1961, we've delivered high performance solutions.

Visit parts.jacobsvehiclesystems.com

Key Findings

We analyzed Parts.jacobsvehiclesystems.com page load time and found that the first response time was 108 ms and then it took 223 ms 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.

Performance Metrics

parts.jacobsvehiclesystems.com performance score

70

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

98/100

25%

SI (Speed Index)

Value1.8 s

100/100

10%

TBT (Total Blocking Time)

Value940 ms

30/100

30%

CLS (Cumulative Layout Shift)

Value0.258

48/100

15%

TTI (Time to Interactive)

Value2.3 s

99/100

10%

Network Requests Diagram

parts.jacobsvehiclesystems.com

108 ms

main.js

7 ms

Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to Parts.jacobsvehiclesystems.com and no external sources were called. The less responsive or slowest element that took the longest time to load (108 ms) belongs to the original domain Parts.jacobsvehiclesystems.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 695 B (51%)

Content Size

1.4 kB

After Optimization

680 B

  • HTML

In fact, the total size of Parts.jacobsvehiclesystems.com main page is 1.4 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. HTML takes 1.4 kB which makes up the majority of the site volume.

HTML Optimization

-51%

Potential reduce by 695 B

  • Original 1.4 kB
  • After minification 1.4 kB
  • After compression 680 B

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 695 B or 51% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Network Requests Diagram

parts.jacobsvehiclesystems.com

parts.jacobsvehiclesystems.com

108 ms

main.js

main.js

7 ms

Accessibility Review

parts.jacobsvehiclesystems.com accessibility score

52

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.

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

Image elements do not have [alt] attributes

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

parts.jacobsvehiclesystems.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

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

parts.jacobsvehiclesystems.com SEO score

83

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

Image elements do not have [alt] attributes

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

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Parts.jacobsvehiclesystems.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 Parts.jacobsvehiclesystems.com main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

parts.jacobsvehiclesystems.com

Open Graph description is not detected on the main page of Parts Jacobs Vehicle Systems. 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: