I have taken on a new client, and when reviewing the site (it's a Wix site), I used this tool, which claims the page is missing an h1 tag.
However in the Chrome developer tools it's clearly there. The only caveat is that it has numerous span elements (4 to be exact) nested inside of the h1 tag. So it's an h1 with a nested span with another nested span and so on for 4 iterations.
Is this tool just getting confused or is this a problem for search engines? I obviously plan on implementing this differently but I would like to understand if there are any issues with the current implementation.