SEM Audit Checklist: 30+ Steps to Improve Campaign Performance

Running ads is easy.

Running profitable SEM campaigns is not.

Without a proper audit, you can waste budget on irrelevant clicks, poor targeting, or underperforming ads. A structured SEM audit helps you identify what’s working, what’s not, and where you can scale.

This SEM checklist gives you a complete framework to analyse and optimise your paid search campaigns for better ROI.

What Is an SEM Audit?

An SEM audit is a detailed review of your paid advertising campaigns, typically on Google Ads or Bing Ads.

It evaluates:

• Campaign structure

• Keyword performance

• Ad quality

• Budget efficiency

• Conversion tracking

The goal is to reduce wasted spend and improve return on ad spend (ROAS).

1. Account Structure Audit

A clean structure improves control and performance.

Checklist:

• Separate campaigns by goal (brand, non-brand, remarketing)

• Group keywords into tightly themed ad groups

• Avoid mixing unrelated keywords in one ad group

• Use clear naming conventions

• Separate search, display, and shopping campaigns

Why it matters: Better structure = higher Quality Score + lower CPC.

2. Keyword Audit

Keywords drive everything in SEM.

Checklist:

• Remove irrelevant or low-performing keywords

• Identify high-cost, low-conversion keywords

• Add negative keywords to reduce wasted spend

• Focus on high-intent keywords

• Expand with long-tail keywords

• Check match types (broad, phrase, exact)

Pro tip: Overusing broad match often leads to wasted budget.

3. Search Terms Analysis

This is where real insights come from.

Checklist:

• Review search terms report

• Identify irrelevant queries

• Add negative keywords regularly

• Discover new keyword opportunities

• Align search terms with user intent

4. Ad Copy Audit

Your ads directly impact CTR and conversions.

Checklist:

• Test multiple ad variations (A/B testing)

• Include primary keywords in headlines

• Highlight clear benefits

• Add strong CTA (e.g. “Get Quote”, “Buy Now”)

• Use emotional triggers where relevant

• Ensure messaging matches landing page

Goal: Improve CTR and Quality Score.

5. Quality Score Audit

Quality Score affects both cost and ranking.

Checklist:

• Improve ad relevance

• Optimise landing page experience

• Increase expected CTR

• Align keywords with ad copy

• Ensure fast-loading landing pages

Impact: Higher Quality Score = lower CPC.

6. Landing Page Audit

Traffic means nothing if it doesn’t convert.

Checklist:

• Ensure message match between ad and page

• Optimise page speed

• Improve mobile experience

• Add clear CTA

• Reduce distractions

• Use trust signals (reviews, testimonials)

• Simplify forms

7. Conversion Tracking Audit

If tracking is wrong, decisions are wrong.

Checklist:

• Verify conversion tracking is working

• Track key actions (leads, purchases, calls)

• Set up Google Analytics integration

• Use conversion values where possible

• Remove duplicate or incorrect tracking

8. Bidding Strategy Audit

Your bidding strategy controls efficiency.

Checklist:

• Check if bidding aligns with goals (CPA, ROAS, clicks)

• Review manual vs automated bidding

• Adjust bids based on performance

• Avoid overbidding on low-value keywords

• Use smart bidding where data is sufficient

9. Budget Allocation Audit

Spend smarter, not more.

Checklist:

• Identify top-performing campaigns

• Reallocate budget to high-ROI areas

• Reduce spend on underperforming campaigns

• Monitor daily budget limits

• Avoid budget caps on high-performing campaigns

10. Audience & Targeting Audit

Targeting the wrong audience wastes money.

Checklist:

• Review location targeting

• Exclude irrelevant regions

• Analyse device performance (mobile vs desktop)

• Adjust bids by device

• Use audience segments (remarketing, in-market)

11. Ad Extensions Audit

Extensions improve visibility and CTR.

Checklist:

• Use sitelink extensions

• Add callout extensions

• Include structured snippets

• Enable call extensions

• Keep extensions updated

12. Performance Metrics Review

Data tells you what to fix.

Key metrics to analyse:

• CTR (Click-Through Rate)

• CPC (Cost Per Click)

• Conversion Rate

• CPA (Cost Per Acquisition)

• ROAS (Return on Ad Spend)

Common SEM Issues to Watch Out For

• High spend but low conversions

• Poor keyword targeting

• Weak ad copy

• Slow landing pages

• Missing negative keywords

• Incorrect tracking setup

How to Turn SEM Audit into Growth

An audit alone doesn’t improve performance. Execution does.

Real growth comes from combining SEM insights with ongoing optimisation and supporting services like:

• Google Ads service to manage and optimise campaigns

• PPC service to scale paid traffic efficiently

• Landing page development to improve conversion rates

• Performance marketing to align campaigns with ROI goals

• Digital marketing service to integrate SEM with SEO and other channels

A provider like Mediaplus Digital Australia typically connects these elements into one system. Instead of running ads in isolation, they align campaigns, landing pages, and data to continuously improve performance.

Final Thoughts

SEM can scale fast, but it can also burn budget fast.

A structured audit helps you:

• Eliminate wasted spend

• Improve campaign efficiency

• Increase conversions

If you regularly review and optimise using this checklist, your SEM campaigns will become more predictable, scalable, and profitable over time.