Privacy Policy

Who we are

INDIGO is an academic project funded by the Heritage Science Austria programme of the Austrian Academy of Sciences (ÖAW). Our website address is:


When visitors leave comments on the site we collect the data shown in the comments form, and also the visitor’s IP address and browser user agent string to help spam detection.

An anonymised string created from your email address (also called a hash) may be provided to the Gravatar service to see if you are using it. The Gravatar service privacy policy is available here. After approval of your comment, your profile picture is visible to the public in the context of your comment.


Most websites have a Google Analytics tracking script installed that uses pervasive cookies to collect IP addresses and other data for advertising and marketing purposes. INDIGO does not sacrifice the privacy of its site visitors. The website only collects basic analytics provided by Plausible, an ethical, open-source and privacy-friendly Google Analytics alternative. Plausible data collection is absolutely anonymous and no cookies are used. There are no persistent identifiers, nor cross-site or cross-device tracking. The Plausible data are solely used to analyse the number of site visits.

If you leave a comment on our site you may opt-in to saving your name, email address and website in cookies. These are for your convenience so that you do not have to fill in your details again when you leave another comment. These cookies will last for one year.

Who we share your data with

INDIGO does not share your data with anybody.

How long does INDIGO retain your data

If you leave a comment, the comment and its metadata are retained until at least the project’s end date (2021-08-31). This is so we can recognize and approve any follow-up comments automatically instead of holding them in a moderation queue.

Where does INDIGO send your data

Visitor comments may be checked through an automated spam detection service.