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Cookie policy


This website uses cookies. Further information about these cookies is set out below.

What is a cookie?

Cookies are text files containing small amounts of information which are downloaded to your device when you visit a website. Cookies are then sent back to the originating website on each subsequent visit, or to another website that recognises that cookie. Cookies are useful because they allow a website to recognise a user’s device. You can find more information about cookies at: www.allaboutcookies.org and www.youronlinechoices.eu.

Cookies do lots of different jobs, like letting you navigate between pages efficiently, remembering your preferences, and generally improve the user experience. The cookies used on this website have been categorised as follows.

Strictly necessary cookies

Some of the cookies on this website are essential in order to enable you to move around the website and use its features, such as accessing secure areas of the website.

Performance cookies

Some of the cookies on this website collect information about how visitors use a website, for instance which pages visitors go to most often, and if they get error messages from web pages. These cookies don’t collect information that identifies a visitor. All information these cookies collect is aggregated and therefore anonymous. It is only used to improve how a website works. By using our website, you agree that we can place these types of cookies on your device.

Functionality cookies

Some of the cookies on this website allow the website to remember choices you make (such as language or the region you are in) and provide enhanced, more personal features. These cookies can also be used to remember changes you have made to text size, fonts and other parts of web pages that you can customise. They may also be used to provide services you have asked for such as watching a video or commenting on a blog. The information these cookies collect may be anonymised and they cannot track your browsing activity on other websites. By using our website, you agree that we can place these types of cookies on your device.

Third party cookies

This website also allows third parties to download cookies to your device.

When you use the social media sharing tools, like Facebook, Twitter or YouTube, through this website, the relevant third party websites also set a range of performance and other cookies onto your device.

Further information about these cookies is available from:

Visit Facebook's privacy policy at http://www.chenyanguang.com/about/privacy/

Visit Twitter's privacy policy http://www.chenyanguang.com/privacy

Visit YouTube's privacy policy http://www.chenyanguang.com/intl/en/policies/privacy/

How we use cookies

We use cookies for a number of different purposes. Some cookies are necessary for technical reasons; some enable a personalized experience for both visitors and registered users; and some allow analytics cookies such as google. Some of these cookies may be set when a page is loaded, or when a visitor takes a particular action.

For more information on the choices you have about the cookies we use, please see the How to ‘Control and Delete cookies’ section.

Cookies table

This table summarises the cookies which may be set on your machine or other device when it is used.

Cookie name Purpose Expires
ASP.NET_SessionId SessionId what .NET Manages for maintaining session End of browser session
AWSALB AWS Classic Load Balancer Cookie: Load Balancing Cookie: Used to map the session to the instance. 7 Days
__utma Tracks each user's number of visits, time of the first, the previous & the current visit (presumably partly for double checking) 2 years
__utmb Tracks how long user stays on a site - when a visit starts and approximately ends 30 Minutes
__utmc Tracks how long user stays on a site - when a visit starts and approximately ends. This expires quickly. End of browser session
__utmz Tracks where a visitor came from (search engine, search keyword, link) 6 Months
_cookieConsent Cookie Consent is a free JavaScript plugin for alerting users about the use of cookies on your website.
It is designed to help you comply with the hideous EU Cookie Law and not make you want to hurt yourself in the process. So we made it fast, free, and relatively painless.
1 Year
_ga This cookie name is associated with Google Universal Analytics - which is a significant update to Google's more commonly used analytics service. This cookie is used to distinguish unique users by assigning a randomly generated number as a client identifier. It is included in each page request in a site and used to calculate visitor, session and campaign data for the sites analytics reports. By default, it is set to expire after 2 years, although this is customizable by website owners. 2 years
_gat Registers a unique ID that is used to generate statistical data on how the visitor uses the website. 1 min
_gid Used to distinguish users.
This cookie name is associated with Google Universal Analytics. This appears to be a new cookie and as of Spring 2017, no information is available from Google. It appears to store and update a unique value for each page visited.
1 day

How to Control and Delete Cookies?

We will not use cookies to collect personally identifiable information about you. However, should you choose to disable, reject or block our cookies, some parts of our websites will not function fully, or in some cases, our website will not be accessible at all.

For more information on how to control your cookie settings and browser settings, or how to delete cookies on your hard drive, please visit www.allaboutcookies.org.