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What do you mean by "wrong"? Is Google not showing the site links you want to see? Are they formatted incorrectly? Please explain further or show us an example.

I see this as good news. Sites break and pages go missing (according to Google's crawl) from time to time. I was concerned at first that permanent redirects were added by mistake. I would give it some time and default to Google's usual advice for fixing 404s - which is to just fix the error and monitor in search console.

It would be a shame to wast good content, especially if the site has a decent score. However, I would only take the time to clean the site up, if you intend on maintaining the site in the future. If you are using WordPress, there are some plugins that can help you with SPAM and dead links.

Although your site appears to load fine, Pingdom reported a load time of 6.41S. You have a number of redirect chains, scripts that could be combined, large request size, etc.

Most of these things are easy to fix. There are many services out there where you can get a decent report. The report will give you a good list of fixes to make. I use https://tools.pingdom.com

I've seen page load time (especially after recent site changes) adversely affect site ranking more than any other single cause.

You can stop guessing, the redirects are likely the reason why your pages dropped from search results. How were the redirects set up. Were 301 redirects used? 302 redirects? This could make a difference in the outcome.

I know from experience that trying to fix the problem before you know the extent of the damage can be a bad idea. I know how difficult it is to wait, but that's what I would do for now.

Here are some non-evasive things you can do that could help.

• Make certain these corrections are present in your sitemap, .htaccess, etc.
• Clear your site cache
• You say you have "re-indexed" the pages you are concerned about. I would request a complete site crawl from all major search engines.