Knowing what competitors advertise helps understand the market, but there is far less information available than people think. What can legitimately be known, and what can be done with it, is useful for positioning messages and offers without copying or entering price wars.
The essentials in a definition
Competitor ad analysis observes what competitors communicate, where and with what offers, using public and legitimate sources, such as platforms’ ad libraries. It lets you identify messages, formats and gaps. What it does not allow is knowing budgets, results or internal strategies. The Unfair Commercial Practices Directive and the ASA remind us that comparative advertising has rules, and the IAB publishes format standards.
What can be known
Public ad libraries (on some platforms) show active ads and sometimes dates and formats. Searches and landing pages show messages and offers. Auction reports indicate who competes with you. Reviews and comments reveal strengths and weaknesses. What you cannot see: budgets, bids, results and internal strategy.
Any estimate of third-party spend is approximate.
How to collect and organise
Make a sheet with the main competitors: messages, offers, prices, formats, landing pages, proof used, tone, channels. Update periodically (monthly or in peak seasons). Keep dated screenshots. Record changes, such as new offers or creatives. Compare with your own offer.
Focus on those who compete directly for the same searches.
Observing competitors with method
- Create a sheet of messages, offers and prices
- Keep dated screenshots
- Look for differentiation space
- Avoid copying and reacting to everything
How to use it
To find differentiation space (what nobody says), see saturated promises, adjust offers and deadlines, anticipate seasons, identify products and channels with little competition. Not to copy: the best response is usually a clear, own proposition. Avoid reacting to every change.
Combine with customer data: what matters to them.
Knowing the competition serves to stand apart, not to look like it.
Cautions
Respect competition and intellectual-property rules. Do not access confidential information by illegitimate means. Do not use observation for attacks or to create misleading ads. Keep the focus on creating value for the customer. Review what the analysis taught.
The best competitors are not those who copy; they are those who differentiate.
Decision table
| You can know | You cannot know | How to use it |
|---|---|---|
| Visible messages and offers | Budget and results | Find gaps and differentiate |
| Formats and channels used | Exact targeting | Test rarely used formats |
| Creative refresh frequency | Conversion rates | Learn about cycles |
| Public prices | Margin and costs | Position rationally |
Common mistakes to avoid
- Copying competitors. You lose differentiation and inherit their mistakes.
- Drawing conclusions about results. A long-running ad does not prove success.
- Intrusive methods. Use only public and legitimate sources.
How to measure the result
Track the performance of differentiating creatives against controls, and the evolution of competitors’ messages.
Limits and exceptions
What you see is a sample, not all activity, and it does not reveal results. Messages that have been running for a long time are not necessarily effective. Use the analysis as inspiration for hypotheses to test, and always respect comparative-advertising rules.
Illustrative example
Illustrative example: a company checks the ad libraries of its three main competitors monthly and records messages, offers and formats. It notices that all talk about price and none about after-sales support. It creates a campaign centred on support and warranty, and tests it against the price message.
In practice: checkpoints
Create a monthly routine: check the ad libraries of three competitors, note new offers, formats and messages, and discuss what to test. Record screenshots with dates, keep to public sources, and avoid copying. Use the findings to sharpen your own differences, not to react to every move.
Frequently asked questions
Can I know how much competitors spend?
Only rough estimates. Avoid basing decisions on them.
Where do I see their ads?
In public ad libraries, searches and landing pages.
Should I copy what works for them?
No. Look for differentiation and validate with your own data.
Which sources should I use?
Platform ad libraries, public sites, social networks and price pages.
Can I compare myself with competitors in ads?
Yes, complying with comparative-advertising rules; confirm legislation and policies.
Use public sources to observe competitors’ messages and formats, look for gaps and differentiate, without copying or inferring results.
Sources and recommended reading
- ASA: Advertising Standards Authority (UK)
- Unfair Commercial Practices Directive (2005/29/EC)
- IAB: standards and guidelines
Last editorial review: October 2026. Informational content; always confirm current conditions in the official sources before deciding.