Restore Google Ads Traffic Post-Migration

Budget: $30 - $250

We are looking for an experienced technical expert to diagnose and fix a critical issue where Google Ads clicks are not properly reaching our website after a recent infrastructure migration. Background: • Website: WordPress • Hosting: DigitalOcean via FlyWP • Server stack: Nginx + PHP-FPM • We recently migrated this site (our other sites are unaffected) • Since migration, Google Ads performance has dropped significantly The Problem: • Google Ads shows normal click volume (50+ clicks/day) • However, we are seeing very few actual visitors/sessions on the landing page • This suggests users are not successfully reaching or loading the page What We’ve Already Investigated: • Verified Google Ads tracking and auto-tagging (gclid present) • Identified and partially addressed a potential Nginx buffer issue: o Error observed: upstream sent too big header while reading response header from upstream o Added buffer rules (fastcgi_buffers, proxy_buffers, etc.) • Disabled/adjusted: o FlyWP WordPress optimizations o Firewall rules (7G) o Object cache (Redis) • Other sites on similar infrastructure are working fine What We Need Help With: We need someone who can fully diagnose and resolve why paid traffic is not reaching or properly loading our landing pages. This may involve: • Reviewing Nginx configuration (buffers, limits, redirects, headers) • Identifying 502 / 403 / timeout issues in logs • Testing real-world ad click scenarios • Verifying query parameter handling (gclid, utm, etc.) • Checking for any blocking, rate limiting, or WAF issues • Ensuring pages load reliably under PPC conditions • Validating GA4 / session tracking is firing correctly Required Experience: • Strong experience with Google Ads + landing page tracking issues • Deep knowledge of Nginx, PHP-FPM, and WordPress hosting stacks • Experience with FlyWP or similar server management tools (RunCloud, SpinupWP, etc.) • Ability to debug server logs and identify request failures • Familiarity with GA4, GTM, and attribution troubleshooting Nice to Have: • Experience diagnosing issues with long URL parameters / gclid / UTM handling • Experience with high-performance WordPress setups and caching layers Deliverables: • Root cause identified (clear explanation) • Confirmation that: o Ad clicks consistently reach landing pages o Sessions are properly tracked o No blocking/errors under normal PPC traffic