Thanks to the excellent Will Woodgate I’ve become aware of Nibbler for testing websites.
Here, the relative amount of positive feedback compared with other more pernickety testing sites is reassuring.
However, it keeps flagging up internal links at the site matthewschellhorn dot com:
“16 links have no text describing their destination. Links on a page should describe their destination for the benefit of both screen readers and search engine spiders.”
It seems to me some of this is to do with the menus but I’m not sure how I can resolve that given it’s “hard-wired” into RW.