What is a Cookie?
A cookie is a small data file that may be stored on the hard drive of your computer or device in your browser’s file directory when you access our website. When you visit one of our websites, cookies may be set by us (first party cookies) or by other companies (third party cookies) such as cookies from Google Analytics, Typekit, Disqus, and Addthis. When you return to one of our websites, or when you access other web pages within one of our websites, your web browser will send the information stored in the cookie to us or to the third party that set the cookie. For more information explaining cookies, visit www.allaboutcookies.org.
How are Cookies used?
Cookies are used on our websites for a variety of purposes:
You can manage cookies one or more ways:
Browser Setting. Your browser likely supports a variety of settings to control the cookies that are set on your computer or device and to delete cookies. These settings are typically found under the “Tools”, “Settings”, or “Options” menus. You can also check the “help” menu of your browser to learn how to change the cookie preferences through your browser settings. Note that you will need to manage the settings for each browser you use and on each device you use. Further information from several popular browsers can be found at the following sites: Apple Safari Google Chrome Microsoft IE Mozilla Firefox Online Tools. Some third parties allow you to manage cookies through online tools such as: Network Advertising Initiative, Digital Advertising Alliance, Your Online Choices, and Adobe Flash. Browser Extensions. Some third parties have created software can be added to your web browser to manage their or third party cookies such as: Google Analytics, Ghostery by Evidon, Inc. Please note that while you are free to decline cookies, you may not be able to use certain features on this site or take full advantage of all of our offerings if you decline cookies. Our reference to any third party or their software or services is not an endorsement by us of such third party or their products and services and we disclaim any liability for the use or operation of any third party software or services.
Please feel free to contact us with any comments, questions, complaints or suggestions you might have regarding the information practices described in this statement by sending email to or by writing to us at PTC Inc., Attn. Legal Department, 140 Kendrick Street, Needham, MA 02494.