Carfax.com Site Title

CARFAX™ - Shop, Buy, Own, & Sell Used Cars

Carfax.com Meta Description

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.

Carfax.com Test Results

carfax.com Mobile Usability: 100/100


carfax.com Mobile Speed: 59/100

Quick overview:
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 5 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
https://media.carfax.com/js/cfx/visitorapi.js
...
Optimize CSS Delivery of the following:
https://media.carfax.com/css/cfx/homeMainNewA.css
...
Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://www.carfax.com/templates/carfax/images/sprites/sprite.png (expiration not specified)
...
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 28.4KiB (20% reduction).
Compressing https://media.carfax.com/img/cfx/tnt/carfox-driving-lrg4.jpg could save 17.8KiB (21% reduction).
...
Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 22KiB (75% reduction).
Compressing https://www.carfax.com/ could save 19.7KiB (76% reduction).
...
Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 8.1KiB (32% reduction).
Minifying https://www.carfax.com/ could save 8.1KiB (32% reduction).
Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 608B (15% reduction).
Minifying https://media.carfax.com/apps/carfax-global-header/main.css could save 608B (15% reduction) after compression.

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