Report Summary

  • 37

    Performance

    Renders faster than
    57% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

kellybluebook.com

Kelley Blue Book | New and Used Car Price Values, Expert Car Reviews

Page Load Speed

3.7 sec in total

First Response

83 ms

Resources Loaded

3.2 sec

Page Rendered

448 ms

kellybluebook.com screenshot

About Website

Welcome to kellybluebook.com homepage info - get ready to check Kelly Blue Book best content for United States right away, or after learning these important things about kellybluebook.com

Check car prices and values when buying and selling new or used vehicles. Find expert reviews and ratings, explore latest car news, get an Instant Cash Offer, and 5-Year Cost to Own information on KBB...

Visit kellybluebook.com

Key Findings

We analyzed Kellybluebook.com page load time and found that the first response time was 83 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

kellybluebook.com performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

48/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

55/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value8,140 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value20.5 s

2/100

10%

Network Requests Diagram

kellybluebook.com

83 ms

www.kbb.com

2119 ms

gtm.js

1039 ms

gpt.js

1039 ms

moatheader.js

910 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Kellybluebook.com, 11% (5 requests) were made to Kbb.com and 11% (5 requests) were made to File.kbb.com. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source Kbb.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 782.6 kB (63%)

Content Size

1.2 MB

After Optimization

464.5 kB

In fact, the total size of Kellybluebook.com main page is 1.2 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. 70% of websites need less resources to load. Javascripts take 732.9 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 342.9 kB

  • Original 419.2 kB
  • After minification 419.0 kB
  • After compression 76.3 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 342.9 kB or 82% of the original size.

Image Optimization

-3%

Potential reduce by 2.5 kB

  • Original 95.0 kB
  • After minification 92.5 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. Kelly Blue Book images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 437.2 kB

  • Original 732.9 kB
  • After minification 732.7 kB
  • After compression 295.6 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 437.2 kB or 60% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (50%)

Requests Now

42

After Optimization

21

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kelly Blue Book. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

kellybluebook.com accessibility score

100

Accessibility Issues

Best Practices

kellybluebook.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

kellybluebook.com SEO score

92

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

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