Yes, It works when 7+ years back.
Nowadays, Google updating its search engine algorithm.
After all, Google is in the business of satisfying their customers.
So, SEO on the single-page website will not work anymore, need some quality backlinks.
In google's eyes, Backlinks are the trust.
If you want to gain more trust for your single-page website from google then do some Blogging and SMM.
Nowadays, there are millions of blogs out there.
If you want to compete with them, then learn some blogging skills.
Tips for Blogging,
- Make an eye-catchy HeadLine(words length must be 5 to 7)
Satisfy the audience first
Make your story worthwhile
Nowadays, High-Quality Content will win No - 1 position in the internet marketing field like google, bing, etc.
These tips are elaborated with the newly developed Formula for Blogging.
Guide Book - Anyone Can Make - 7 Days To Profitable Blogging
This book helps me a lot with my websites.
Actually, this book was a paid one.
I searched and I found out that the paid books are Free on the website called Dmshelter.
This website only contains pure and pure "Digital Marketing" paid ebooks for free.