Why Google ranking is so much fluctuate?
This is the working of Google Algorithm. It changes from time to time. That's why we see minor and major fluctuations in Google search results.
Google rank fluctuate based on Google server update and algorithm changes. It will be happen few weeks of after updates
It could be as a result of so many factors. Google could have updated their algorithm yes, but more likely in the short term your rankings on keywords will also be changing frequently depending on which websites internet users are visiting for those search terms. This could be affected by yours and your competitors content, SEO (both on page and off page), SMO etc. etc.
In SEO, fluctuation of keyword ranking on SERP is known as Google Dance. To maintain the position of a ranking on SERP, keep creating quality backlinks and quality content as well.
Great Share keep it up.
It is all because of Google's ranking algorithm. The ranking algorithm works for content (your content is quality content or not? is unique or not? copied or not?), backlinks (backlinks to your sites are high PR sites or not? are link spammy?)
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