If it helps, I don't mind handing over the code (VB and SQL) to someone who is willing to host it. I made this initially to mark epic structure locations for missions but once archaeology was introduced, I added the squares for marking the deeds. If someone can present their capability of maintaining and hosting this, I'd be more than happy to give them the code.
This is used by a few allies, it's a little awkward because once the message "such and such deed used to be here" when investigating, we open the map dump in MS Paint and get the coordinates from there (1 pixel is 1 tile in game) and record those in the application, functionality is there. It also records and shows the deed founding date in real life (approximating to deed age/8) which is entered by the user as well, not mandatory.
App then looks for the N/W and S/E corners for the selected deed and draws the rectangle for selected deed. Problem is that I don't do any validation on the entered text so spelling mistakes cause problems, just too lazy to do it properly and with the handful of people who are using it, it's no biggie to maintain it in DB.
For Epic Structures it draws an arrow and focuses on it, I just add them manually to the DB based on ally finds.
I'm not willing to host it because of GDPR. There are 2 options:
Make it public and every troll can insert any garbage data they want or
Make it account based and have to be able to produce the papers required in case of a GDPR audit.
Epic structures (excuse the native language):
Archaeology finds (small red rectangle, open on imgur to zoom https://i.imgur.com/hn5IgcP.png
I will NOT host this because it is too much hassle with the current GDPR legislation. Only other option would be to record "public" data and have the thing full of troll entries.