Tools & Wizards About Us

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 79% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

shelton.com

Buick GMC Dealer Serving Troy | Serra Buick GMC Rochester Hills

Page Load Speed

688 ms in total

First Response

29 ms

Resources Loaded

554 ms

Page Rendered

105 ms

About Website

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

Our Buick GMC Dealership in Rochester Hills is home to a vast inventory of new and used cars. Whether your looking to buy or to service your car we do it all.

Visit shelton.com

Key Findings

We analyzed Shelton.com page load time and found that the first response time was 29 ms and then it took 659 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

shelton.com performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

14/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

24/100

25%

SI (Speed Index)

Value22.8 s

0/100

10%

TBT (Total Blocking Time)

Value53,740 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value83.2 s

0/100

10%

Network Requests Diagram

www.serrabuickgmcrochesterhills.com

29 ms

Lato-Bold.css

45 ms

Lato-Regular.css

48 ms

HelveticaNeue-Medium.css

50 ms

injector.min.js

121 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Shelton.com, 13% (1 request) were made to Serrabuickgmcrochesterhills.com and 13% (1 request) were made to Api.ansira.net. The less responsive or slowest element that took the longest time to load (121 ms) relates to the external source Api.ansira.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 144.3 kB (32%)

Content Size

446.0 kB

After Optimization

301.7 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Shelton.com main page is 446.0 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. Only 10% of websites need less resources to load. Javascripts take 365.5 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 61.7 kB

  • Original 79.4 kB
  • After minification 78.9 kB
  • After compression 17.6 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. 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 61.7 kB or 78% of the original size.

JavaScript Optimization

-22%

Potential reduce by 81.9 kB

  • Original 365.5 kB
  • After minification 365.5 kB
  • After compression 283.6 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 81.9 kB or 22% of the original size.

CSS Optimization

-57%

Potential reduce by 671 B

  • Original 1.2 kB
  • After minification 1.1 kB
  • After compression 497 B

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. Shelton.com needs all CSS files to be minified and compressed as it can save up to 671 B or 57% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (43%)

Requests Now

7

After Optimization

4

  • JavaScript
  • CSS

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Shelton. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

shelton.com accessibility score

92

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

shelton.com best practices score

75

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

shelton.com SEO score

79

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

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

High

Page is blocked from indexing

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