To be considered Google sandboxed a site must be new and first rank well for SERPs, then loose them for no reason, any other description has been added over the past 14 years!
Screenshot of: https://blog.linkody.com/seo/google-sandbox-guide
This is classic blaming everything on the Google Sandbox Effect!
The SANDBOX arrow points to a time when the site was generating ~30 visitors a day dropping to ~15 visitors a day a normal fluctuation.
This was a LOW traffic site, it’s not sandboxed or penalised, it simply didn’t rank for anything until May 2013. It’s completely NORMAL.
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