No. It is not compulsory for your blog to have Off-Page SEO. But, if you want your blog to rank higher in search engines, it is recommended that you invest your time and effort into Off-Page SEO.
Creating high-quality, original content that fulfills search intent and is created for audiences or readers rather than search engines should always be the main priority, regardless of the situation.
Off-Page SEO initiatives are positively influenced by writing or publishing valuable and high-quality content.
Before working on off-page SEO, make sure your On-Page SEO is strong.
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