Tools & Wizards About Us
kbb.com screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    56% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

kbb.com

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

Page Load Speed

3 sec in total

First Response

421 ms

Resources Loaded

2.1 sec

Page Rendered

450 ms

kbb.com screenshot

About Website

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

Key Findings

We analyzed Kbb.com page load time and found that the first response time was 421 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

kbb.com performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

58/100

25%

SI (Speed Index)

Value8.0 s

21/100

10%

TBT (Total Blocking Time)

Value16,990 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value37.0 s

0/100

10%

Network Requests Diagram

www.kbb.com

421 ms

pix-kbb.min.js

705 ms

gtm.js

853 ms

gpt.js

852 ms

moatheader.js

855 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 11% of them (4 requests) were addressed to the original Kbb.com, 16% (6 requests) were made to File.kbb.com and 11% (4 requests) were made to Static.kbb.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source File.kelleybluebookimages.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 451.8 kB (43%)

Content Size

1.0 MB

After Optimization

595.1 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Kbb.com main page is 1.0 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. 75% 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. Javascripts take 492.0 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 374.6 kB

  • Original 457.9 kB
  • After minification 457.6 kB
  • After compression 83.3 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 374.6 kB or 82% of the original size.

Image Optimization

-2%

Potential reduce by 1.5 kB

  • Original 97.0 kB
  • After minification 95.4 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. Kbb images are well optimized though.

JavaScript Optimization

-15%

Potential reduce by 75.7 kB

  • Original 492.0 kB
  • After minification 492.0 kB
  • After compression 416.3 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 75.7 kB or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (41%)

Requests Now

37

After Optimization

22

  • AJAX
  • Images
  • JavaScript

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kbb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.kbb.com

www.kbb.com

421 ms

pix-kbb.min.js

pix-kbb.min.js

705 ms

gtm.js

gtm.js

853 ms

gpt.js

gpt.js

852 ms

moatheader.js

moatheader.js

855 ms

node.esm.js

node.esm.js

64 ms

cai-authentication-web-components.esm.js

cai-authentication-web-components.esm.js

47 ms

URNZ4-XZ625-X4XUD-2N5XG-DEPHW

URNZ4-XZ625-X4XUD-2N5XG-DEPHW

986 ms

KBBLogoRefresh.svg

KBBLogoRefresh.svg

1152 ms

Step1.dfc9a59b.png

Step1.dfc9a59b.png

1142 ms

2024-GMC-Sierra%201500%20Double%20Cab-front_53755_032_1846x826_GNO_cropped.png

2024-GMC-Sierra%201500%20Double%20Cab-front_53755_032_1846x826_GNO_cropped.png

1289 ms

Step3-ico-large.666e9d05.png

Step3-ico-large.666e9d05.png

827 ms

Step4-CreditWise.d5bbec6d.svg

Step4-CreditWise.d5bbec6d.svg

848 ms

cityscape-2.4277956b.svg

cityscape-2.4277956b.svg

868 ms

KBB_MarketingCampaign_KBBIt_1920x420_rev2_083022.gif

KBB_MarketingCampaign_KBBIt_1920x420_rev2_083022.gif

286 ms

SNA_FC_MY24_Honda_Prologue_940x536_v2.png

SNA_FC_MY24_Honda_Prologue_940x536_v2.png

428 ms

2018-honda-accord-side_12627_001_480x240_wa.png

2018-honda-accord-side_12627_001_480x240_wa.png

641 ms

2018-chevrolet-tahoe-side_12299_001_480x240_gaz.png

2018-chevrolet-tahoe-side_12299_001_480x240_gaz.png

803 ms

2018-ford-f-150-side_12312_001_480x240_yz.png

2018-ford-f-150-side_12312_001_480x240_yz.png

826 ms

2017-chrysler-pacifica-side_11178_001_480x240_pw7.png

2017-chrysler-pacifica-side_11178_001_480x240_pw7.png

826 ms

2016-toyota-prius-side_11016_001_480x240_1f7.png

2016-toyota-prius-side_11016_001_480x240_1f7.png

825 ms

pubads_impl.js

pubads_impl.js

314 ms

js

js

174 ms

otSDKStub.js

otSDKStub.js

355 ms

gateway.min.js

gateway.min.js

357 ms

v2

v2

367 ms

pixel.gif

pixel.gif

292 ms

n.js

n.js

297 ms

iframe.html

iframe.html

59 ms

config.json

config.json

266 ms

18353239

18353239

122 ms

dde6a334-06c8-432a-bd8f-5637ee3a6d29.json

dde6a334-06c8-432a-bd8f-5637ee3a6d29.json

33 ms

pixel.gif

pixel.gif

8 ms

location

location

76 ms

pixel.gif

pixel.gif

7 ms

fs.utils.js

fs.utils.js

5 ms

fs.trigger.js

fs.trigger.js

15 ms

otBannerSdk.js

otBannerSdk.js

46 ms

Accessibility Review

kbb.com accessibility score

93

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

Best Practices

kbb.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

Missing source maps for large first-party JavaScript

SEO Factors

kbb.com SEO score

100

Search Engine Optimization Advices

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 Kbb.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 Kbb.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

kbb.com

Open Graph data is detected on the main page of Kbb. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: