From sections two of carfax's terms and conditions:
2. Restrictions on Use. The Site contains copyrighted material, trademarks, and other proprietary information, including, without limitation, text, software, photos, graphics (the "Content"). The Content of the Site, as well as the organization, layout, arrangement and design elements of the Site and each individual page of the Site, are the property of CARFAX and its affiliates and are protected by United States and international copyright, trademark and other applicable intellectual property laws. You may not modify, publish, transmit, display, participate in the transfer or sale, create derivative works, or in any way exploit any of the Content, in whole or in part. Except as otherwise expressly permitted under copyright law, no copying, redistribution, retransmission, publication or commercial exploitation of downloaded material will be permitted without the express written permission of CARFAX or the copyright owner. In the event of any permitted copying, redistribution, or publication of copyrighted material, no changes in or deletion of author attribution, trademark legend, or copyright notice shall be made. You acknowledge that you do not acquire any ownership rights by downloading or printing the copyrighted material, or by using the Site.
CARFAX offers you access to the Site and to the Content available on the Site solely for your own personal and non-commercial use. You may not resell or make any commercial use of the Site or the Content. You may not make use of any product listings, descriptions, or prices. You may not download or copy any account information for the benefit of any other merchant. You may not make use of any robots, spiders, or similar data mining, data gathering or extraction tools or manual processes to collect, gather or copy any of the Content in an unauthorized manner. You may not engage in the practices of "screen scraping," "database scraping," or any other practice or activity the purpose of which is to obtain lists of users, portions of a database, or other lists or information from this Site, in any manner or in any quantities not authorized by CARFAX. You may not frame or utilize framing techniques to enclose any trademark, logo, or other proprietary information (including images, text, page layout, or form) of CARFAX or its affiliates without prior express written consent. You may not use meta tags or any other "hidden text" utilizing CARFAX name or trademarks without the express written consent of CARFAX.
Systematic retrieval of the Content or other data from this Site to create or compile, directly or indirectly, in whole or in part, a collection, compilation, database or directory without the express written permission of CARFAX is strictly prohibited.
You may not use the Site in any manner that could damage, disable, overburden, or impair the Site or interfere with any other person's use and enjoyment of the Site.
The foregoing provisions of Section 2 are for the benefit of CARFAX, its subsidiaries, affiliates, and its third party content providers and licensors, if any, and each shall have the right to assert and enforce such provisions directly or on its own behalf.
Illegal and/or unauthorized uses of this Site, including, but not limited to, unauthorized framing of or linking to the Site, or unauthorized use of any robot, spider, or other automated device on the Site, or any manual process to monitor or copy any portion of the Content, will be investigated and appropriate legal action will be taken, including without limitation, civil and criminal proceedings, and proceedings for restraining orders and injunctions.