When I wrote my blog originally, I used Vue and Gridsome. It was great, I shipped the whole site in a few hours.
Late in the year I rewrote the site in Svelte and Sapper. I did this for personal reasons, to learn the technology. But shortly after I saw a massive boost in Google SEO.
I believe a lot of this had to do with my focus on Structured Content. When rebuilding the site, I added JSON+LD. I also worked to improve some of the wording across the site.
Now if I can just sit down and write another article. I have not added any new posts since July....