Diagnose & Revive Google Impressions

My e-commerce site, https://tattattoosupplies.com/, has been live for eight years. Until a few weeks ago Search Console averaged around 6,000 impressions a day; I am now sitting at roughly 750. I have not touched the site design, content, or SEO strategy during this period, so something outside my own changes is clearly at play.

Your task is two-fold: first, run a thorough audit to uncover the exact reasons behind the sudden drop; second, execute or outline the specific actions needed to recover and grow impressions and, with them, traffic—the metric that matters most to me.

Please cover technical SEO (crawl errors, indexing, Core Web Vitals, schema), on-page signals, backlinks, and any possible Google algorithm or manual actions. If you require access to Search Console, Analytics, server logs, or other data, let me know and I will grant it.

Deliverables:
• Diagnostic report pinpointing the root causes of the impression loss
• Prioritised action plan with clear, implementable steps
• Implementation of quick-win fixes (or concise guidance if you prefer I deploy them)
• Follow-up performance summary showing movement in impressions over an agreed time frame

I value clarity and evidence-based recommendations. If additional tools—Screaming Frog, Ahrefs, SEMrush, GA4, etc.—are part of your workflow, mention them so I can provide the necessary access.