It is not justified to create many landing pages

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If everything is different, then the search engine will most likely take it for cheating and may block the resource.
There is no need to buy too many links, thereby wasting the budget for the campaign. It is enough to buy several high-quality links from reliable resources to increase the authority of your company by several dozen positions in search results.

Accompanied by low quality content. It is important Sri Lanka cell phone number list to increase the quality of content, paying attention to such factors as navigation, design, content.
Avoid an excessive number of keywords. The emphasis should be on the quality and uniqueness of the content itself, its usefulness and clarity. Post only verified information materials on your online resource that consumers will need. Also, do not publish everything at once, it is better to divide and add in portions so that you can always find something new.

Complete indifference to the specifics of a niche and your competitors will not lead to anything good.
You shouldn't start external optimization without working on internal optimization.