22.2 sec in total
721 ms
15.9 sec
5.6 sec
Welcome to carfax.com homepage info - get ready to check CARFAX best content for United States right away, or after learning these important things about carfax.com
Don't run the risk of buying a used car with costly hidden problems. Shop with confidence for a car with the CARFAX vehicle history that's right for you.
Visit carfax.comWe analyzed Carfax.com page load time and found that the first response time was 721 ms and then it took 21.5 sec 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.
carfax.com performance score
name
value
score
weighting
Value6.9 s
1/100
10%
Value6.9 s
6/100
25%
Value8.9 s
15/100
10%
Value14,900 ms
0/100
30%
Value0.002
100/100
15%
Value25.7 s
0/100
10%
721 ms
3003 ms
3186 ms
3354 ms
3152 ms
Our browser made a total of 36 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Carfax.com, 33% (12 requests) were made to Media.carfax.com and 6% (2 requests) were made to Vcu.collserve.com. The less responsive or slowest element that took the longest time to load (4.2 sec) relates to the external source Media.carfax.com.
Page size can be reduced by 537.3 kB (29%)
1.8 MB
1.3 MB
In fact, the total size of Carfax.com main page is 1.8 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. 35% of websites need less resources to load. Images take 909.1 kB which makes up the majority of the site volume.
Potential reduce by 32.8 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 32.8 kB or 69% of the original size.
Potential reduce by 18.0 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. CARFAX images are well optimized though.
Potential reduce by 427.1 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 427.1 kB or 53% of the original size.
Potential reduce by 59.4 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. Carfax.com needs all CSS files to be minified and compressed as it can save up to 59.4 kB or 83% of the original size.
Number of requests can be reduced by 20 (57%)
35
15
The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CARFAX. 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.
www.carfax.com
721 ms
homeMainNewA.css
3003 ms
main.css
3186 ms
visitorapi.js
3354 ms
mbox.js
3152 ms
CFXHeader.js
4224 ms
s_code.js
3122 ms
conversion.js
2348 ms
vcu.js
2361 ms
JavascriptInsert.js
2631 ms
target.js
898 ms
ajax
1519 ms
id
738 ms
id
692 ms
rd
96 ms
logo.png
574 ms
carfox-driving-lrg4.jpg
1642 ms
mycarfax-logo.png
260 ms
carfox-looking-left.jpg
321 ms
mycarfax-phones.png
320 ms
cfxapp_footersprite.png
320 ms
s65895073201972
49 ms
analytics.js
2753 ms
all.js
1660 ms
session.js
683 ms
insert.js
676 ms
activityi;src=4426628;type=carfa009;cat=carfa0;u5=624094543512510;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;ord=624094543512510
3135 ms
sc
2630 ms
dataium_sync.xgi
2962 ms
1748 ms
0sTQzbapM8j.js
1687 ms
1510 ms
24717
524 ms
ga-audiences
52 ms
pixel.gif
377 ms
dest5.html
520 ms
carfax.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
carfax.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
carfax.com SEO score
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
Document uses legible font sizes
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Carfax.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 Carfax.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.
carfax.com
Open Graph description is not detected on the main page of CARFAX. 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: