The information collected by statistics cookies is used for developing the website.

Name	Provider	Purpose of the cookie	Validity	Type
nmstat	hel.fi	The Siteimprove statistics cookie collects information about the use of the website.	1000 days
_pk_id.*	hel.fi	Matomo Analytics - used to store a few details about the user such as the unique visitor ID	393 days
_pk_ses.141.89f6	hel.fi	-	1 hour
_pk_id.*	kartta.hel.fi	Matomo Analytics - used to store a few details about the user such as the unique visitor ID	393 days
_pk_ses.*	kartta.hel.fi	Matomo Analytics - short lived cookies used to temporarily store data for the visit	1 hour
_pk_id.*	palvelukartta.hel.fi	Matomo Analytics - used to store a few details about the user such as the unique visitor ID	393 days
_pk_ses.*	palvelukartta.hel.fi	Matomo Analytics - short lived cookies used to temporarily store data for the visit	1 hour
rnsbid	reactandshare.com	A record related to the operation of the Askem react buttons.	-	Local storage
rnsbid_ts	reactandshare.com	A record related to the operation of the Askem react buttons.	-	Local storage
rns_reaction_*	reactandshare.com	A record related to the operation of the Askem react buttons.	-	Local storage
YSC	youtube.com	The YouTube cookie facilitates including videos as part of the website's content.	Session	Third party
null_active_survey	Norstat	The id of the survey that is live.	-	Local storage
null_page_view_count	Norstat	How many City of Helsinki pages have you viewed before seeing the survey	-	Local storage
null_active_scenario	Norstat	What version of the survey module is live.	-	Local storage
wsLanguage_p933511862344	Norstat	Language identifier used to select which language of the survey you see.	-	Local storage
p933511862344_status	Norstat	Have you already completed the survey.	-	Local storage
p933511862344_complete_date	Norstat	Date and time when the survey was submitted	-	Localstorage

Turning points

Origins and 16th century

1550 – Founding Helsinki