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System Stability | Search Console | Product Feed | API

Supporting Case Study — Validating the technical foundations of performance marketing (Anonymised)

Context

As part of ongoing performance marketing activities, I reviewed the technical foundations of the marketing systems.
The aim was to ensure that the underlying systems were working reliably before further campaign optimisation or scaling.



System Review — Key Areas
I reviewed the technical foundations across several areas:

• Google Search Console: indexing and visibility
• Merchant Center product feed quality
• Data flow between the website, product feed and Google Ads
• Reliability of the connections between systems

The review focused on the infrastructure supporting performance marketing rather than campaign optimisation.

Search Console & Indexing

I checked the indexing of relevant product and category pages and identified technical issues.

The focus was on:

• Indexing status of key pages
• Presence in Google’s search index
• Technical health of the website as a foundation for marketing activity

Merchant Center & Feed Quality

I then analysed the Merchant Center feed, focusing on:

• Image quality
• Product title structure
• Consistency between the feed and website
• Product data quality and policy compliance statuss
The aim was to assess whether the feed provided accurate, consistent product information for Shopping and Performance Max campaigns.

System & API Stability

I also reviewed data flows between the website, product feed, Google Ads and Merchant Center, focusing on:

• Reliable feed transfers
• Consistent data structure
• Early identification of technical risks

Website Stability Check

I assessed whether technical website issues could affect active performance marketing campaigns. Google Search Console showed a temporary server error (5xx) in the page indexing report. Validation confirmed that the issue had already been resolved and no further action was needed.
These checks help identify website errors that may also affect the accessibility and reliability of Google Ads landing pages.

My Role

• Independently analysing the system structure
• Documenting findings in a structured format
• Coordinating with Art Direction and company management
• Establishing reliable foundations for sustainable performance

Conclusiont

The review confirmed that the technical systems were stable, consistent and operating reliably, providing a sound foundation for scaling performance marketing campaigns.

Key Takeaways

Technical stability is a prerequisite for performance, but it does not guarantee results.
Campaign performance can be affected by issues elsewhere in the system, such as poor feed quality or website errors. Checking these foundations early helps identify risks before they lead to performance losses.

Wer Systeme früh prüft, verhindert Performance-Verluste bevor sie sichtbar werden.

My Approach

This supporting case study illustrates the technical work behind my approach:
Review systems → Identify risks → Establish reliable foundations before evaluating or scaling performance.