Table 1.

Technical and functional aspects (domain 1). Sub-domains with a range of items were assessed. Scores between 0 and 2 were used

Sub-domain	Item	Median (25th/75th percentiles; min-max)
Accessibility	Does it work on a range of browsers?	2 (1/2; 0–2)
Accessibility	Is it fully free to use?	2 (2/2; 0–2)
Usability	Is it easy to navigate?	2 (1/2; 0–2)
Clarity	Are all links working?	2 (2/2; 0–2)
Clarity	Is it easy to understand?	2 (2/2; 0–2)
Clarity	Is the layout of the main block of information clear and readable?	2 (2/2; 0–2)
Functionality	Does it have an effective search function?	0 (0/0, 0–0)
Functionality	Does it work without plugins?	2 (1/2; 0–2)
Functionality	Does the design minimize the cognitive overhead?	2 (1/2; 0–2)
Incapability	Is it interactive?	0 (0/0; 0–2)
Currency?	Is it current?	2 (1/2; 0–2)
Currency	Does the site respond to recent events?	1 (0/1; 0–2)