There could be several reasons why the number of pages indexed for a particular Blogspot blog may decrease in Google search results. Here are a few possible explanations:
• Changes in website structure or content: If you've made significant changes to your website structure or content, Google may need to re-crawl your website to index the changes. During this process, some pages may be temporarily de-indexed, causing the number of indexed pages to decrease.
• Duplicate content: Google penalizes websites that have duplicate content, meaning content that appears on multiple pages of your website or content that appears on other websites. If Google detects duplicate content on your website, it may remove some pages from its index.
• Crawl errors: If Google's web crawlers encounter errors when attempting to crawl your website, such as broken links or server errors, it may skip indexing some pages. You can use Google Search Console to identify and fix crawl errors on your website.
• Penalties: If your website violates Google's webmaster guidelines, such as by engaging in keyword stuffing or buying links, Google may penalize your website and reduce the number of indexed pages.
• Algorithm updates: Google regularly updates its search algorithm to improve the quality of its search results. If your website does not meet the new criteria set by an algorithm update, your website may experience a drop in indexed pages.
It's important to regularly monitor your website's indexed pages using Google Search Console and address any issues that arise to ensure your website is fully indexed and optimized for search.
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