A broken link is a internal link that points to:
They hurt your SEO and should be avoided at all cost.
You can monitor them and you can even list them
You can use the cli command called broken-link to list them
Example * on the server
./bin/plugin.php combo broken-links
* in dokuwiki docker with the combostrap site.
docker exec -it site-com-combostrap php ./bin/plugin.php combo broken-links
You can query the database against the page statistics data with the below Analytics SQL to list the page with broken links and their count along with the path of the page
with validPages as (select path, analytics
from pages
where json_valid(analytics) = 1)
select path,
json_extract(analytics, '$.statistics.internal_broken_link_count') as broken_link,
json_extract(analytics, '$.statistics.media.internal_broken_count') as broken_media
from validPages
where json_extract(analytics, '$.statistics.internal_broken_link_count') is not null
or json_extract(analytics, '$.statistics.media.internal_broken_count') != 0