It depends.Question for everyone above:
would simply changing your theme (ie the layout and design) but keeping the content and h1-6 tags the same still cause this fluctuation in rankings?
I like your point of viewChanging your WordPress theme inherently affects your SEO because it fundamentally alters all of the pages search engines have indexed from your site. Generally, as long as your new theme is solid and you’ve made the right optimizations, you should be able to avoid any long-term setbacks, but there’s always a risk of short-term problems.
If you did it recently, then just wait for Google to reindex your site from scratch, it may take up to 4 weeks even. But after that period, if you still see that your ranking has failed, switch to the old theme or try a new one, but in this case, it would be the most secure to stick with what worked well before.I just recently update my website design to a new theme, i had about 300+ number 1 rankings and now at least 70% of them disappeard, is this normal and will they come back?