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@PeterHane I have recently worked on my client's website: https://greatdeserttours.com/ which was on 9 DA 1 to 2 months back but Its DA started increasing after we removed plagiarized content from it and replace it with quality content. On-Page must be done well. Backlinks only help you to get traffic from other sites. But without quality On-Page it will have a negative impact on your website. Thanks

@nisso2022 you can organically promote your site by following google guidelines. I also organically promoted my site genericbucket.com/ by going proper SEO and reduce the spam score as well.