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Site Info - Carfax.com

Overview of web technologies used by Carfax.com.

Website Background

CARFAX - Shop, Buy, Own, & Sell Cars with Confidence
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.

Description on Homepage

Top 10k among all websites

Popularity rank

JavaScript is a lightweight, object-oriented, cross-platform scripting language. This includes TypeScript.

JavaScript

JavaScript is a lightweight, object-oriented, cross-platform scripting language, often used within web pages.

JavaScript

Next.js is an open source JavaScript framework based on React and Node.js.

Next.js

Node.js is a server-side JavaScript environment for writing network programs such as web servers, originally developed by Ryan Dahl.

Node.js

CyrusOne a data center and web hosting provider owned by Altafiber. This includes Cervalis, which were acquired by CyrusOne.

CyrusOne
hosting info partly based on data from ipinfo.io

Amazon CloudFront is a content delivery web service by Amazon.

Amazon CloudFront

Amazon is a US-based e-commerce and cloud computing provider.

Amazon

NS1 provides managed and private DNS services, owned by IBM.

NS1

Microsoft is a multinational technology company headquartered in USA, also offering email services.

Microsoft

Sectigo (formerly Comodo CA) is a US-based SSL certificate authority.

Sectigo

Starfield Technologies is an SSL certificate authority owned by Go Daddy.

Starfield
used on a subdomain

Microsoft UET (Universal Event Tracking) records what visitors do on a website after they click on an ad.

Microsoft UET

Adobe Analytics is a web site traffic analysis service formerly called Omniture. Its products include SiteCatalyst, WebSideStory and Hitbox.

Adobe Analytics

Contentsquare is a hosted web analytics service. This includes the former ClickTale brand.

Contentsquare

Optimizely provides a web analytics and A/B testing tool.

Optimizely

New Relic is a web application performance management tool.

New Relic
used on a subdomain

The Google Advertising network consists of AdSense, DoubleClick and other services.

Google Ads

The Google Tag Manager is a Google service to support webmasters to manage tags on their websites.

Google Tag Manager

External Cascading Style Sheets define style rules in a separate CSS file.

External CSS

Embedded Cascading Style Sheets define a set of style rules in a <style> element within a web page.

Embedded CSS

Inline Cascading Style Sheets define style rules directly within an (X)HTML element using the style attribute.

Inline CSS

Brotli is a lossless compression algorithm developed by Google.

Brotli Compression

A strong ETag is an HTTP header field for validation of cached web pages, that indicates a byte-for-byte identical page in the cache.

Strong ETag
used on a subdomain

A weak ETag is an HTTP header field for validation of cached web pages, that indicates a semantically equivalent page in the cache.

Weak ETag

HTTP/3 is the third major version of the HTTP network protocol, derived from the QUIC protocol.

HTTP/3

The websites redirects visitors to its www subdomain, e.g. from example.com to www.example.com.

Default subdomain www

The websites redirects visitors to use SSL encryption, e.g. from http://example.com/ to https://example.com/.

Default protocol https

JSON-LD (JavaScript Object Notation for Linked Data) is a method of encoding Linked Data using JSON.

JSON-LD

HTML5 is the fifth revision of the HTML standard.

HTML5

UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, which is backwards compatible with ASCII.

UTF-8

PNG (Portable Network Graphics) is a lossless compression image format, suitable to store graphics with uniformly colored areas, and originally introduced as a free, open-source successor of GIF.

PNG

Scalable Vector Graphics (SVG) is an XML-based vector image format.

SVG

WebP is an image format that provides lossless and lossy compression, developed by Google.

WebP

AVIF (AV1 Image File Format) is an image file format specification for storing images or image sequences compressed with AV1 in the HEIF file format.

AVIF

Commercial entities

.com

United States
Germany
France
Sweden
used on a subdomain

English

 

 

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