Tools & Wizards About Us

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

jenningschevrolet.com

New and Used Cars for Sale glenview, IL | Chevrolet Dealership | Jennings Chevrolet

Page Load Speed

21.4 sec in total

First Response

43 ms

Resources Loaded

20.6 sec

Page Rendered

719 ms

About Website

Click here to check amazing Jennings Chevrolet content for United States. Otherwise, check out these important facts you probably never knew about jenningschevrolet.com

Whether you are looking for a new Chevrolet vehicle or our various used cars for sale at Jennings Chevrolet, we have you covered! Drivers from Glenview to Evanston turn to us when shopping for their n...

Visit jenningschevrolet.com

Key Findings

We analyzed Jenningschevrolet.com page load time and found that the first response time was 43 ms and then it took 21.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

jenningschevrolet.com performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

15/100

25%

SI (Speed Index)

Value15.4 s

0/100

10%

TBT (Total Blocking Time)

Value5,400 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.112

86/100

15%

TTI (Time to Interactive)

Value38.9 s

0/100

10%

Network Requests Diagram

www.jenningschevrolet.com

43 ms

dotagging.js

35 ms

dealerOnTrack.min.js

9 ms

gmGlobalEvents.min.js

8 ms

5124.js

196 ms

Our browser made a total of 127 requests to load all elements on the main page. We found that 57% of them (73 requests) were addressed to the original Jenningschevrolet.com, 5% (6 requests) were made to Cdn.dlron.us and 4% (5 requests) were made to Dpm.demdex.net. The less responsive or slowest element that took the longest time to load (20.1 sec) relates to the external source Static.ed.edmunds-media.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.8 MB (20%)

Content Size

9.2 MB

After Optimization

7.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jenningschevrolet.com main page is 9.2 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. 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 6.9 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 485.5 kB

  • Original 576.2 kB
  • After minification 574.2 kB
  • After compression 90.7 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 485.5 kB or 84% of the original size.

Image Optimization

-1%

Potential reduce by 51.8 kB

  • Original 6.9 MB
  • After minification 6.9 MB

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. Jennings Chevrolet images are well optimized though.

JavaScript Optimization

-75%

Potential reduce by 1.3 MB

  • Original 1.7 MB
  • After minification 1.7 MB
  • After compression 434.7 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 1.3 MB or 75% of the original size.

CSS Optimization

-36%

Potential reduce by 702 B

  • Original 1.9 kB
  • After minification 1.9 kB
  • After compression 1.2 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. Jenningschevrolet.com needs all CSS files to be minified and compressed as it can save up to 702 B or 36% of the original size.

Requests Breakdown

Number of requests can be reduced by 55 (50%)

Requests Now

111

After Optimization

56

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 111 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jennings Chevrolet. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 51 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

jenningschevrolet.com accessibility score

64

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

High

[aria-*] attributes do not have valid values

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

[id] attributes on active, focusable elements are not unique

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

jenningschevrolet.com best practices score

67

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

jenningschevrolet.com SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

High

Tap targets are not sized appropriately

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 Jenningschevrolet.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 Jenningschevrolet.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 Jennings Chevrolet. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: