1. You select a campaign or oCPC bid strategy that showed an abnormal fluctuation. 2. Pick the anomaly date and a comparison date (fluctuation must be >20%, spend > ¥100, clicks >10). 3. Submit — within ~60 seconds, the tool delivers a full diagnosis.
The three stages analyzed:| Stage | What It Checks | Common Fix |
|---|---|---|
| Ad Triggering | Were your ads eligible for the auction? (targeting width, pass rate) | Widen targeting; check negative keywords |
| Bid Ranking | Did your ads win the auction? (ad quality × bid strength) | Increase bids; improve ad relevance |
| Impression & Click | Did users engage? (CTR trends) | Refresh creative; test new copy |
⏰ When to Use Each Diagnostic Tool
Baidu now has a full suite of diagnostic tools. Knowing which one to use matters:
| Diagnostic Tool | Best For |
|---|---|
| Impression Diagnosis | Keywords with zero impressions |
| Delivery Diagnosis | Keywords with low impressions |
| Abnormal Fluctuation | Sudden drops or spikes in impressions/spend |
| Keyword Quality Pre-check | Pre-launch keyword-landing page relevance |
📊 The Catch for International Brands
The diagnostic tool is inside Baidu's Chinese-language advertising platform. To use it effectively, you need: 1. A Baidu advertising account with sufficient data history 2. The ability to read Chinese diagnostic conclusions 3. The expertise to interpret the root cause analysis correctly
For overseas teams without a Chinese-speaking PPC manager, this tool generates valuable data that sits unread.
🔧 How BPP Turns Diagnostics Into Action
🎯 How BPP Handles This
- ✅ We run Baidu's diagnostic tools on your campaigns weekly — catching anomalies before they become problems
- ✅ We translate Chinese diagnostic reports into English-language action items — you get the conclusion, not the guesswork
- ✅ We triage root causes: if it is a settings fix, we apply it immediately; if it is a competitive shift, we adjust your bid strategy
- ✅ We document every fluctuation and fix — so your campaign history builds intelligence over time
🚀 Get Diagnostics on Your Baidu Campaigns
Tell us about your account. We will run a full diagnostic and show you exactly what is happening — and what to do about it.
Contact Us →